Add native Windows binary for bison.

bison/contrib/bison/2.4.1/bison-2.4.1-src/ChangeLog

+2008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Version 2.4.1.
+        * NEWS: Set version and date.
+        * lib/Makefile.am: Update copyright year.
+        * tests/atlocal.in: Update copyright year.
+
+2008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Semicolon feature removal is not about future language support.
+        * NEWS: The semicolon feature is no longer active for newer languages,
+        so don't claim that it causes trouble for them.
+
+2008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * gnulib: Update submodule to HEAD.
+
+2008-12-09  Akim Demaille  <demaille@gostai.com>
+
+        Update data/README.
+        * data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
+
+2008-12-05  Eric Blake  <ebb9@byu.net>
+
+        Build testsuite with newer autoconf.
+        * tests/output.at (m4_expand): Don't override in newer autoconf,
+        where the underlying implementation changed.
+        * tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
+        (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
+        (_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
+        (_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
+        since some of them contain unbalanced ')'.
+
+2008-11-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS: Clarify a little.
+
+2008-11-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS: Update for recent changes.
+
+2008-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix unexpanded macros in GLR defines file.
+        Reported by Csaba Raduly at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
+        * THANKS (Csaba Raduly): Add.
+        * data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
+        * tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
+        lexer in a separate module that includes the defines file.
+        (AT_CHECK_CALC): Use AT_FULL_COMPILE and request compilation of lexer
+        source.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
+        Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
+        (AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
+        (AT_DATA_SOURCE_PROLOGUE): New.
+        (AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
+        (AT_DATA_SOURCE): New.
+        (AT_FULL_COMPILE): New, copied from master branch and extended to
+        support an additional source file.
+
+2008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't let maintainer-*-check targets force a version update.
+        * cfg.mk (_is-dist-target): Implement.  maintainer-check* was already
+        handled.
+
+2008-11-17  Di-an Jan  <dianj@freeshell.org>
+
+        * doc/bison.texinfo: Synchronize ``Detail Node Listing''.
+        Align menus.  Adjust word wrapping.  Use node names for menu names.
+        (Examples): Don't abbreviate node names.
+        (LocalWords): Remove abbreviations.
+        (Copying): Make description a sentence.
+        (Java Action Features): Remove period to match the rest of menu.
+
+2008-11-11  Paolo Bonzini  <bonzini@gnu.org>
+
+        * bootstrap.conf: Replace m4/warning.m4 with warnings module.
+        * configure.ac: Adjust usage.
+        * lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
+        * src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
+        * tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
+
+2008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't add a semicolon to actions for %skeleton or %language.
+        It breaks Java test cases as reported by Akim Demaille.
+        * src/scan-code.l: Implement.
+
+2008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up %skeleton and %language priority implementation.
+        * src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
+        remove static qualifier because others will soon need to see it.
+        (language_prio): Likewise.
+        (getargs): Use command_line_prio rather than 0.
+        * src/getargs.h (command_line_prio, grammar_prio, default_prio): New
+        enum fields.
+        (skeleton_prio): Extern it.
+        (language_prio): Extern it.
+        * src/parse-gram.y: Use grammar_prio rather than 1.
+
+2008-11-04  Akim Demaille  <demaille@gostai.com>
+
+        * NEWS: Mention the trailing semicolon in action.
+
+2008-11-04  Akim Demaille  <demaille@gostai.com>
+
+        Reformat NEWS.
+        * NEWS: Use more outline-mode markup.
+        Suggested by Jim Meyering.
+
+2008-11-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix user actions without a trailing semicolon.
+        Reported by Sergei Steshenko at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
+        * THANKS (Sergei Steshenko): Add.
+        * src/scan-code.l (SC_RULE_ACTION): Fix it.
+        * tests/regression.at (Fix user actions without a trailing semicolon):
+        New test case.
+
+2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Initiate further development.
+        * NEWS: Create an empty section for new entries.
+        * gnulib: Update submodule to HEAD.
+
+2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS: Version 2.4.
+
+2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Prepare for next release.
+        * NEWS: Briefly mention changes since 2.3b.
+        * README: Say GNU m4 1.4.6, which we've been requiring in release
+        announcements already, not 1.4.3, which breaks the build.
+
+2008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Say %language is experimental.
+        We're thinking of extending it's effect on output file naming.  See the
+        thread at
+        <http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
+        * NEWS: Say it's experimental.
+        * doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
+        recommend it over %skeleton for now.
+        (Bison Options): Likewise.
+        (C++ Bison Interface): Use %skeleton not %language.
+        (Calc++ Parser): Use %skeleton not %language.
+        * src/getargs.c (usage): Say it's experimental.
+
+2008-11-01  Di-an Jan  <dianj@freeshell.org>
+            Paolo Bonzini  <bonzini@gnu.org>
+
+        Support all Java parser class modifiers.
+        * data/java.m4 (b4_percent_define_get3): New.
+        (b4_final_if, b4_strictfp_if): New.
+        * data/lalr1.java (final, strictfp, extends, implements): Support.
+        * doc/bison.texinfo (final, strictfp, extends, implements): Add
+        documentation.
+        * tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
+        (AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
+        (AT_CHECK_JAVA_GREP): New.
+        (Java parser class modifiers): New test.
+        (Java parser class extends and implements): New test.
+
+        Model exception propagation better with throws and lex_throws.
+        * data/java.m4 (b4_list2): New.
+        (throws): Change default.
+        * data/lalr1.java (yyaction): Add throws.
+        (parse): Add lex_throws in addition to throws.
+        * doc/bison.texinfo (throws, lex_throws): Add documentation.
+        * tests/java.at (Java throws specifications): New test.
+
+        Improve documentation for Java parsers.
+        * doc/bison.texinfo (Java Parsers): Add subsections.
+        Don't quote first argument of %define.
+        (Java Bison Interface): Document output files.  Move documentation
+        of parser class and merge into Java Parser Interface.  Document
+        features that error out.  Document directives with no effect.
+        Move note about Javadoc higher.
+        (Java Semantic Values): Explicitly mention stype.
+        Document that generic types cannot be used.
+        (Java Location Values): Use @deftypeivar.  Document constructors.
+        Correct return value for toString.
+        (Java Parser Interface): List undocumented constants/fields.
+        Move documentation of fields added by %parse-param closer to list
+        of members.  Document that token names are added as fields.
+        Document constructors accurately.  Remove error method.
+        (Java Scanner Interface): Move note on %pure-parser to Java Bison
+        Interface.  Describe %code lexer and yylex accutately.
+        Remove documentation that does not match the code.
+        (Java Action Features): New.
+        (Java Differences): Add reference.  Add item on semantic values.
+        Add note about @{ ... @}.  Clarify %% epilogue placement.
+        (Java Declarations Summary): New.
+
+        Fix Java skeleton.
+        * data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
+        (b4_remove_comma): Quote test argument.
+        (b4_identification): Remove "bison" field.
+        * tests/java.at (Java parser class and package names): New test.
+        (Java %parse-param and %lex-param): New test.
+        (Java stype, position_class and location_class): New test.
+
+2008-10-31  Di-an Jan  <dianj@freeshell.org>
+
+        * data/lalr1.jave: Update copyright years.
+        (YYParser): Correct name of "generated from" file in Javadoc:
+        use b4_file_name instead of @ofile@.
+        (Location constructor): Correct Javadoc parameter name.
+        (yylloc): Add missing opening m4 quote after b4_location_if.
+        This removes a stray [ in the Javadoc of Lexer.getStartPos.
+        (Lexer.yyerror): Fix incorrect m4 and Javadoc.
+        (YYParser constructor): Correct Javadoc parameter name.
+
+2008-10-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Always put auxiliary code files in the same dir as other output files.
+        * src/files.c (compute_file_name_parts): When the user specifies
+        --output but not --file-prefix, extract the directory prefix from the
+        file prefix not from the grammar file name.  This affects the location
+        of files like location.hh generated by the C++ skeleton.  The includes
+        in the other output files require this fix.
+        * tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
+        for expected output files.
+        (Output files): Add a test for the above.
+
+2008-10-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * gnulib: Update submodule to HEAD.
+
+2008-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update copyright year.
+        * src/files.c: Here.
+
+2008-10-28  Di-an Jan  <dianj@freeshell.org>  (tiny change)
+
+        Don't overwrite the input file.
+        * src/files.c (output_file_name_check): Fatal error if using input file
+        for output.
+        * tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
+        argument.
+        (Conflicting output files): Add test.
+
+2008-10-28  Akim Demaille  <demaille@gostai.com>
+
+        Space changes.
+        * data/lalr1.cc: Formatting changes.
+
+2008-10-28  Akim Demaille  <demaille@gostai.com>
+
+        Don't define debugging functions when !YYDEBUG.
+        * data/lalr1.cc (debug_stream, set_debug_stream)
+        (debug_level_type, debug_level, set_debug_level): Don't
+        declare them when YYDEBUG is not defined.
+        The implementation are already YYDEBUG-aware.
+
+2008-10-28  Akim Demaille  <demaille@gostai.com>
+
+        Prefer "continue" for empty loop bodies.
+        * etc/bench.pl.in: Use "continue" instead of {}.
+
+2008-10-28  Akim Demaille  <demaille@gostai.com>
+
+        Space and comments changes.
+        * data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
+        * data/c.m4, data/lalr1.cc: Space changes.
+
+2008-10-28  Akim Demaille  <demaille@gostai.com>
+
+        Make gnulib a submodule.
+        * gnulib: New.
+        * .gitmodules (gnulib): New.
+
+2008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix yyerror_range for user-defined location type in C++.  Reported by
+        Georg Sauthoff at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
+        * data/lalr1.cc (parse): Change type of yyerror_range to location_type.
+        * THANKS (Georg Sauthoff): Add.
+
+2008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update several administrative files mainly to facilitate releasing.
+        * HACKING (Administrivia): Make the git-merge-changelog notes more
+        helpful.
+        (Test suite): Don't say lalr1.cc is not exercised in the test suite.
+        (Release Procedure): Update for git and add numerous details that were
+        previously missing.
+        * Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
+        * maint.mk (announcement): Don't list bison as a bootstrap tool so
+        that announcements don't claim we bootstrapped with whatever bison
+        happened to be in PATH.  Add flex as a bootstrap tool.
+        * Makefile.maint: Remove, previously replaced by maint.mk.
+        * Makefile.cfg: Remove, and migrate settings to...
+        * cfg.mk: ... here for the sake of `make announcement'.
+        * bootstrap.conf (gnulib_modules): Add announce-gen.
+        * README: Say GNU Bison instead of just Bison.  Suggested by Karl
+        Berry.
+
+2008-10-08  Di-an Jan  <dianj@freeshell.org>  (tiny change)
+
+        Small but important bugfixes for the Java skeleton.
+        * data/lalr1.java (yyerror): Change Location to b4_location_type.
+        (yy_symbol_print): Call toString on yyvaluep.
+
+2008-08-29  Akim Demaille  <demaille@gostai.com>
+
+        Clarify UPDATED use.
+        * doc/bison.texinfo: It refers to the last edition of this file,
+        not to the release date of Bison.
+        Reported by Joel E. Denny.
+
+2008-08-29  Akim Demaille  <demaille@gostai.com>
+
+        * README: Update FAQ pointer.
+        Reported by Joel E. Denny.
+
+2008-08-27  Eric Blake  <ebb9@byu.net>
+
+        Resync m4sugar from autoconf.
+        * data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
+        (m4_init): Adjust to latest m4.git changes.
+        (m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
+        effects.
+        * data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
+        (_m4_list_cmp): Reduce side effects.
+
+2008-08-27  Akim Demaille  <demaille@gostai.com>
+
+        Check yyerrok in calc.at.
+        * tests/calc.at (calc.y): Use yyerrok on "( error )".
+        (AT_CHECK_CALC): Add a check that ensures that yyerrok works as
+        expected.
+
+2008-08-27  Akim Demaille  <demaille@gostai.com>
+
+        Support yyerrok in lalr1.cc.
+        YYBACKUP is still to import back into lalr1.cc.
+        * data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
+
+2008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For maintainer-check*, don't recompile for a $(VERSION) update.
+        * cfg.mk: New file.
+        (_is-dist-target): Override the one in GNUmakefile.
+        * Makefile.am (EXTRA_DIST): Add cfg.mk.
+
+2008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update for recent change to gnulib.
+        * src/parse-gram.y: Don't include strverscmp.h.  It comes from
+        string.h now.
+
+2008-08-15  Eric Blake  <ebb9@byu.net>
+
+        Remaining m4sugar merge from autoconf.
+        * data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
+        * data/m4sugar/foreach.m4: New file, copied from autoconf.
+        * data/Makefile.am (dist_m4sugar_DATA): Distribute it.
+        * src/output.c (output_skeleton): Tell m4 how to find it.
+
+        Partial m4sugar merge from autoconf: m4_map.
+        * data/m4sugar/m4sugar.m4 (m4_fst): Delete.
+        (m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
+        (m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
+        * data/java.m4 (b4_token_enums): Use more efficient short-circuit
+        for empty list.
+        * data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
+        Likewise.
+        (b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
+        declares it.
+
+2008-08-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Keep .version and PACKAGE_VERSION in sync.
+        * Makefile.am ($(top_srcdir)/.version): Declare configure as a
+        dependency, and add comments justifying this in more detail.  Discussed
+        starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
+
+2008-08-06  Eric Blake  <ebb9@byu.net>
+
+        Partial m4sugar merge from autoconf: m4_shiftn.
+        * data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
+        (m4_shift2, m4_shift3): New macros.
+        (m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
+        * data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
+        (b4_c_ansi_function_decl, b4_c_function_call): Likewise.
+        * data/java.m4 (b4_remove_comma): Likewise.
+
+        Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
+        * data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
+        (m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
+        (m4_init): Consolidate wrapped text into single m4_wrap.
+        * data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
+        in wrapped text.
+
+2008-08-05  Eric Blake  <ebb9@byu.net>
+
+        Partial m4sugar merge from autoconf: builtins, version.m4.
+        * data/m4sugar/m4sugar.m4 (changeword): Nuke.
+        (m4_prepend): Remove, as it is unused and inherently quadratic,
+        whereas m4_append is linear in newer m4.
+        (m4_mkstemp): New builtin.
+        (m4_symbols): Make rename conditional.
+        (m4_version_prereq): Ensure fatal error if used in bison, which
+        intentionally lacks version.m4.
+
+        Fix comments in m4sugar.
+        * data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
+
+2008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update for recent .gitignore fix in Gnulib.
+        * bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
+        anchored .gitignore entries.
+
+2008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Set gnu or gnits strictness.
+        * configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
+        development and gnits strictness for releases.  Based on Eric Blake's
+        suggestion at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
+
+2008-07-31  Paolo Bonzini  <bonzini@gnu.org>
+
+        * NEWS: Clarify documentation of %language.
+
+2008-07-31  Paolo Bonzini  <bonzini@gnu.org>
+
+        Support usage of git-merge-changelog.
+        * .gitattributes: New.
+        * HACKING: Document usage of git-merge-changelog.
+        * bootstrap: Install git-merge-changelog entries in .git/config
+        if appropriate.
+
+2008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Remove remaining dependence on CVS Id keyword.
+        * ChangeLog: For the sake of people still using CVS, don't use dollars
+        when mentioning Id.
+        * data/xslt/bison.xsl: Remove Id from header comments, where it was
+        unusual anyway.
+        * data/xslt/xml2dot.xsl: Likewise.
+        * data/xslt/xml2text.xsl: Likewise.
+        * data/xslt/xml2xhtml.xsl: Likewise.
+        * doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
+        * doc/Makefile.am (neutralize): Remove, no longer needed.
+        (.x.1): Don't use neutralize.
+        (edit): Don't substitute for ID.
+        (Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
+
+2008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix dependence on computed configure variables.
+        * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
+        $(top_srcdir)/configure.ac so that changes to computed variables, such
+        as PACKAGE_VERSION, are seen.
+        * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
+
+2008-07-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update copyright dates for recent changes.
+        * Makefile.am: Here.
+        * src/Makefile.am: Here.
+        * src/reduce.c: Here.
+        * tests/reduce.at: Here.
+
+2008-07-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Use git-version-gen for version names between releases.
+        * .cvsignore (.tarball-version, GNUmakefile, *~): Add.
+        * .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
+        * .prev-version: New.
+        * .version.in: Remove.
+        * ChangeLog: Remove the Id previously used for capturing the CVS
+        revision.
+        * GNUmakefile: Remove, now copied from Gnulib.
+        * Makefile.am: Add code suggested by comments in
+        build-aux/git-version-gen.
+        (EXTRA_DIST): Remove GNUmakefile, handled by Gnulib.  Add maint.mk,
+        .prev-version, and .version.
+        * NEWS (2.3b+): Rename to...
+        (?.?): ... this because we're dropping the "+" version naming scheme,
+        but, in general, we still can't be sure of our next release name.
+        * bootstrap: Add a quick hack to remove from .gitignore the
+        GNUmakefile entry that gnulib adds.  We already have a /GNUmakefile
+        entry.  This should really be fixed in gnulib instead.
+        * bootstrap.conf (gnulib_modules): Add gnumakefile.
+        * configure.ac (AC_INIT): Set version name by invoking
+        build-aux/git-version-gen.
+        (AC_CONFIG_FILES): Remove .version, now generated by
+        build-aux/git-version-gen.
+        * maint.mk: New, copied from coreutils.
+        * doc/.cvsignore (bison.1): Add.
+        * doc/.gitignore (/bison.1): Add.
+        * doc/bison.1: Remove, generated.
+        * src/.cvsignore (revision.c): Remove.
+        * src/.gitignore (/revision.c): Remove.
+        * src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
+        (BUILT_SOURCES): Remove revision.c.
+        (revision.c): Remove.
+        * src/getargs.c (version): Don't print revision after the VERSION.
+        * src/revision.h: Remove.
+
+2008-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix untranslatable composition of sentences.  Reported by Goran
+        Uddeborg at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
+        * THANKS (Goran Uddeborg): Add.
+        * src/reduce.c (reduce_print): Report the number of nonterminals and
+        rules useless in the grammar in separate sentences.
+        * tests/reduce.at (Useless Rules): Update output.
+        (Reduced Automaton): Likewise.
+        (Underivable Rules): Likewise.
+        (Empty Language): Likewise.
+
+2008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix some .gitignore and .cvsignore problems.
+        * bootstrap (insert_sorted_if_absent): Replace all uses with...
+        (insert_vc_ignore): ... this new function, which prepends `/' to all
+        .gitignore entries before passing them to insert_sorted_if_absent.
+        * bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
+        .cvsignore files are maintained even though Bison developers run
+        bootstrap while using Git.
+        * .cvsignore (*.patch *.log log patches applied): Remove, apparently
+        unneeded by Bison.
+        (gnulib): Add.
+        * .gitignore (/*.patch *.log log patches applied): Remove, broken and
+        unneeded.  Reported by Eric Blake.
+        * lib/.gitignore (/*~): Add.
+        * po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
+        * examples/calc++/.gitignore (/calc++.exe): Add.  Reported by Eric
+        Blake.
+        * src/.gitignore (/bison.exe): Add.  Reported by Eric Blake.
+
+2008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Improve forward-compatibility with GNU M4.  Reported by Eric Blake at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
+        * bootstrap.conf (gnulib_modules): Add unsetenv.
+        * lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
+        * m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
+        (/setenv.m4): Add.
+        * src/output.c (output_skeleton): For the m4 invocation, pass -dV as
+        the first argument because it may become position-dependent, and unset
+        POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
+        Add comments explaining these issues in more detail.
+
+2008-07-14  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Add .gitignore everywhere based on .cvsignore.
+        * .gitignore: New.
+        * build-aux/.gitignore: New.
+        * data/.gitignore: New.
+        * doc/.gitignore: New.
+        * etc/.gitignore: New.
+        * examples/.gitignore: New.
+        * examples/calc++/.gitignore: New.
+        * lib/.gitignore: New.
+        * m4/.gitignore: New.
+        * po/.gitignore: New.
+        * runtime-po/.gitignore: New.
+        * src/.gitignore: New.
+        * tests/.gitignore: New.
+
+2008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3b+): New section, empty for now.
+        * configure.ac (AC_INIT): 2.3b -> 2.3b+.
+
+2008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3b): Update release date since there has been a delay in
+        getting the announcements and tarballs out.
+
+2008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS: Version 2.3b.
+        * configure.ac (AC_INIT): Likewise.
+        (PACKAGE_COPYRIGHT_YEAR): Update to 2008.
+
+2008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * HACKING: Don't say don't mention HACKING in the ChangeLog.  We've
+        been doing it for years.
+        (Test suite): Mention maintainer-push-check and maintainer-xml-check.
+        (Release Procedure): Add FIXME about make alpha being unmaintained.
+
+2008-05-13  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/yacc.c: Reformat m4 a little for readability.
+        * src/lalr.c (build_relations): Correct comment.
+
+2008-05-12  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        DJGPP specific issue.
+        * djgpp/config.sed: Fixes required to run configure scripts generated
+        by autoconf 2.62.
+
+2008-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * HACKING (Release Procedure): translation@iro.umontreal.ca is now
+        coordinator@translationproject.org.
+
+2008-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * THANKS: Add Eric Blake.
+
+2008-04-23  Eric Blake  <ebb9@byu.net>
+
+        Revert prior patch, by working around autoconf regression.
+        * tests/output.at (m4_expand): Add workaround for autoconf 2.62.
+        ("Output file name: ("): Uncomment test.
+        ("Output file name: )"): Likewise.
+        Based on an idea from Noah Misch.
+
+2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
+        2.61.  Reported by Juan Manuel Guerrero at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
+        * tests/output.at ("Output file name: ("): Comment out test case for
+        now.
+        ("Output file name: )"): Likewise.
+
+2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * GNUmakefile: Update git-version-gen invocation so make dist
+        succeeds.
+
+2008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update to the current gnulib CVS repository, and fix trigraph handling
+        in Bison.
+        * bootstrap: Update gnulib CVS repository URL.
+        (symlink_to_dir): Encapsulate the code that guarantees the destination
+        directory exists into...
+        (check_dst_dir): ... this new function, and...
+        (cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
+        fail when copying files into lib/uniwidth/.
+        * src/output.c (prepare_symbols): When writing yytname muscles, where
+        symbol names will be encoded in C-string literals, tell quotearg to
+        escape trigraphs.  This used to be the default in gnulib.
+        * tests/regression.at (Token definitions): Because of the change in
+        gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
+        escapes trigraphs in symbol names.  Thus, yytname no longer has
+        trigraphs unnecessarily doubly escaped.  Update test case output.
+        Extend test case to be sure Bison's own error messages will no longer
+        have trigraphs in symbol names unnecessarily escaped once.
+
+2008-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix make dist infinite loop reported by Juan Manuel Guerrero at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
+        * .cvsignore: Add .version.
+        * .version.in: New.
+        * bootstrap.conf (gnulib_modules): Add git-version-gen.
+        * configure.ac (AC_CONFIG_FILES): Add .version.
+        * build-aux/.cvsignore: Add git-version-gen.
+
+2008-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3a+): Mention that -g now takes an argument.
+        * doc/bison.texinfo (Bison Options): Reword -W entry a little for
+        consistency.  Update the -g and -x entries now that they take
+        arguments.  Use brackets to indicate optional arguments.
+        * src/getargs.c (usage): Explain the relationship between arguments of
+        long and short options more completely.  Document --defines and -d
+        separately since the former takes an argument but, for POSIX Yacc, the
+        latter does not.
+        (short_options): Let -W take an optional argument like --warnings.
+        (getargs): Sort cases.
+
+2008-02-28  Akim Demaille  <demaille@gostai.com>
+
+        * doc/bison.texinfo: Fix a few typos.
+
+2008-02-28  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Bison Options): Document -W.
+        Based on Joel E. Denny's NEWS entry, and Automake's documentation.
+
+2008-02-28  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (short_options): Split and sort for readability.
+        -g and -x take optional arguments, just like their long options.
+        * build-aux/cross-options.pl: Use /x to make the regexp easier to
+        understand.
+        Fix the handling of $opt which resulted in all the argument to be
+        considered as optional.
+
+2008-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3a+): Don't say %language is experimental.  Mention Java and
+        say its interface is experimental.
+        * doc/bison.texinfo (Decl Summary): In the %language entry, mention
+        Java.
+        (Bison Options): In the -L and --language entry, mention Java.
+        (Java Bison Interface): Say the interface is experimental.
+        * src/getargs.c (usage): Mention -L and --language.
+
+        * NEWS (2.3a+): Say the push parsing interface is experimental.
+        * doc/bison.texinfo (Push Decl): Likewise.
+        (Decl Summary): Likewise in the "%define api.push_pull" entry.
+        (Push Parser Function): Likewise.
+        (Pull Parser Function): Likewise.
+        (Parser Create Function): Likewise.
+        (Parser Delete Function): Likewise.
+        (Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
+        yypull_parse, and yypush_parse entries.
+
+        * NEWS (2.3a+): Mention XML support, and say the schema is
+        experimental.
+        * doc/bison.texinfo (Bison Options): Mention -x and --xml.
+        * src/getargs.c (usage): Say the XML schema is experimental.
+
+        * NEWS (2.3a+): Say option instead of flag.
+
+2008-02-21  Wojciech Polak  <polak@gnu.org>
+
+        * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
+        text.
+
+2008-02-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix impure push parser compile error reported by Bob Rossi at
+        <http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
+        * data/yacc.c: Clean up whitespace in the output a little.
+        (yypstate_allocated): Define for impure push parsers regardless of
+        whether the pull interface is also requested.
+        * tests/push.at (Push Parsing: Multiple impure instances): Extend to
+        check impure push parsers without the pull interface.
+
+        * data/yacc.c (yypstate_new): Don't try to invoke yyerror since
+        yyerror takes arguments specified by %parse-param while yypstate_new
+        does not.
+        * doc/bison.texinfo (Parser Create Function): Document that
+        yypstate_new returns 0 for multiple impure parser instances.
+        * tests/push.at (Push Parsing: Multiple impure instances): Update
+        expected stderr output.
+
+2008-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * runtime-po/POTFILES.in (push.c): Remove.
+
+2008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
+        * data/push.c: Rename to...
+        * data/yacc.c: ... this, overwriting it.
+        * etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
+        `%push-pull-parser' -> `%define api.push_pull "both"'.
+        Remove old yacc.c tests, and update push.c tests to yacc.c.
+
+2008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/bison.m4 (b4_percent_code_get): Output %code block comments like
+        `"%code top" blocks' instead of `%code "top" blocks'.
+        * data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
+        Clean up whitespace in the output a little.
+
+2008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix documentation problems reported by Tim Josling at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
+        * NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
+        * doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
+        integers.  Explain the effect of literal string aliases on error
+        messages.  Copy token 0 documentation from the C++ skeleton
+        documentation.
+
+2008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Accept a token number in a %left, %right, or %nonassoc for POSIX
+        conformance.  Reported by Tim Josling at
+        <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
+        * NEWS (2.3a+): Mention.
+        * doc/bison.texinfo (Precedence Decl): Describe how literal strings
+        and code numbers are treated by precedence declarations.
+        * src/parse-gram.y (precedence_declaration): Use symbols.prec instead
+        of symbols.1.
+        (symbols.prec): New, just like symbols.1 but uses symbol.prec instead
+        of symbol.
+        (symbol.prec): New, just like symbol but allows INT.
+        * src/symtab.c (symbol_user_token_number_set): Remove an aver that no
+        longer holds.
+        * tests/regression.at (Token number in precedence declaration): New
+        test case.
+
+2008-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        DJGPP specific issues.
+        * djgpp/config.bat: Add filenames that are not 8.3 clean and that must
+        be changed.  Copyright timestamp adjusted.
+        * djgpp/config.sed: Add filenames that are not 8.3 clean and that must
+        be changed.  Copyright timestamp adjusted.
+        * djgpp/config.site: Copyright timestamp adjusted.
+        * djgpp/config_h.sed: Copyright timestamp adjusted.
+        * djgpp/djunpack.bat: Copyright timestamp adjusted.
+        * djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
+        filename translation list.
+        * djgpp/subpipe.c (init_subpipe): Check the environment variables
+        TMPDIR, TMP and TEMP, in that order, to determinate where the temp
+        files shall be created.  Before trying to use the temp dir where the
+        environment variable points to check that the dir really exists. If
+        not default to the cwd as temp dir.  Copyright timestamp adjusted.
+        * djgpp/subpipe.h: Copyright timestamp adjusted.
+        * djgpp/testsuite.sed: Copyright timestamp adjusted.
+
+2008-01-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
+
+2008-01-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (yyparse): Correct the comment when locations aren't used.
+        Problem reported by Claudio Saavedra in
+        <http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
+
+2008-01-05  Wojciech Polak  <polak@gnu.org>
+
+        * data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
+        document's title with the input grammar file name.
+
+2007-12-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Automate regression testing of the XML/XSLT implementation.  Discussed
+        starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
+        * configure.ac (XSLTPROC): New substitution.
+        * Makefile.am (maintainer-xml-check): New phony target invoking...
+        * tests/Makefile.am (maintainer-xml-check): ... this new phony target
+        invoking make maintainer-check with BISON_TEST_XML=1.
+        * tests/atlocal.in (XSLTPROC): New.
+        * tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
+        not to report reachable memory when Bison is expected to have a
+        non-zero exit status and (2) to compare XML/XSLT output with --graph
+        and --report=all output for every working grammar when
+        BISON_TEST_XML=1.
+        (AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
+        (AT_BISON_CHECK_XML): New.
+        (AT_QUELL_VALGRIND): New.
+        * tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
+        (AT_CHECK): ... don't redefine this since this was the old way to
+        quell Valgrind.
+        * tests/actions.at: Rewrite all AT_CHECK invocations for bison as
+        AT_BISON_CHECK invocations.
+        * tests/c++.at: Likewise.
+        * tests/calc.at: Likewise.
+        * tests/conflicts.at: Likewise.
+        * tests/cxx-type.at: Likewise.
+        * tests/existing.at: Likewise.
+        * tests/glr-regression.at: Likewise.
+        * tests/headers.at: Likewise.
+        * tests/input.at: Likewise.
+        * tests/java.at: Likewise.
+        * tests/output.at: Likewise.
+        * tests/push.at: Likewise.
+        * tests/reduce.at: Likewise.
+        * tests/regression.at: Likewise.
+        * tests/sets.at: Likewise.
+        * tests/skeletons.at: Likewise.
+        * tests/synclines.at: Likewise.
+        * tests/torture.at: Likewise.
+        (Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
+        tends to hang xsltproc.
+        (Big horizontal): Likewise.
+
+2007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In XML output, remove redundant class attribute on symbol element.
+        * data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
+        * data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
+        look up a symbol to determine whether it's a nonterminal or terminal.
+        * src/gram.c (rule_rhs_print_xml): Remove class attribute.
+        * src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
+
+        Add prec/assoc information to XML output.
+        * src/gram.c (grammar_rules_print_xml): For each rule that has a
+        %prec, add a percent_prec attribute.
+        * src/print-xml.c (print_grammar): For each terminal that has a
+        precedence or associativity, add a prec or assoc attribute.
+        (xml_indent): New.
+        (xml_puts): Use xml_indent.
+        (xml_printf): Use xml_indent.
+        * src/print-xml.h (xml_indent): Prototype.
+
+        * tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
+
+2007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/xslt/bison.xsl (bison:ruleNumber): Rename to...
+        (bison:ruleByNumber): ... this for clarity.
+        * data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
+        * data/xslt/xml2text.xsl (xsl:template match="item"): Update.
+        (xsl:template match="reduction"): Update.
+        (xsl:template match="item"): Update.
+        (xsl:template match="reduction"): Update.
+
+        In the XML output, don't print the list of rules where symbols appear.
+        Compute it in XSLT instead.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
+        * data/xslt/bison.xsl (bison:ruleByLhs): New.
+        (bison:ruleByRhs): New.
+        * data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
+        bison:ruleByRhs.
+        (xsl:template match="terminal/rule"): Remove.
+        (xsl:template match="nonterminal"): Use bison:ruleByLhs and
+        bison:ruleByRhs.
+        (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
+        Remove.
+        * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
+        bison:ruleByRhs and mode="number-link" for rule template.
+        (xsl:template match="terminal/rule"): Remove.
+        (xsl:template match="nonterminal"): Use bison:ruleByLhs and
+        bison:ruleByRhs and mode="number-link" for rule template.
+        (xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
+        Rewrite as...
+        (xsl:template match="rule" mode="number-link"): ... this.
+        * src/print-xml.c (print_grammar): Don't print the list of rules.
+
+2007-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't let --report affect XML output; always print all information.
+        Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
+        * src/conflicts.c (log_resolution): Implement.
+        * src/print-xml.c (print_core): Implement.
+        (print_state): Implement.
+        (print_xml): Implement.
+
+        * NEWS (2.3a+): Fix quotes.
+        * src/parse-gram.y (prologue_declaration): For consistency with -v,
+        don't let %verbose clear the list specified by --report.
+
+2007-11-26  Akim Demaille  <akim@epita.fr>
+
+        * data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
+
+2007-11-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In the XML output, list useless and unused symbols and rules with the
+        useful ones and add a "usefulness" attribute.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
+        * src/gram.c (grammar_rules_partial_print_xml): Remove.
+        (grammar_rules_print_xml): Print all rules instead of just those
+        useful in the grammar, and add a "usefulness" attribute.
+        * src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
+        * src/print-xml.c (print_rules_useless_in_parser): Remove.
+        (print_grammar): Print all nonterminals instead of just useful ones,
+        and add a "usefulness" attribute to nonterminals and terminals.
+        (print_xml): Don't print a separate "reductions" or
+        "rules-useless-in-parser" element.
+        * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
+        (reduce_xml): Remove.
+        (reduce_token_unused_in_grammar): New.
+        (reduce_nonterminal_useless_in_grammar): New.
+        * src/reduce.h (reduce_xml): Remove prototype.
+        (reduce_token_unused_in_grammar): Add prototype.
+        (reduce_nonterminal_useless_in_grammar): Add prototype.
+        * data/xslt/xml2text.xsl: Update for XML changes.
+        * data/xslt/xml2xhtml.xsl: Update for XML changes.
+        * tests/reduce.at (Useless Terminals): Update output.
+        (Useless Rules): Update output.
+        (Reduced Automaton): Update output.
+
+        Say "Terminals unused in grammar" instead of "Unused terminals".
+        * NEWS (2.3a+): Update.
+        * doc/bison.texinfo (Understanding): Update example output.
+        * src/reduce.c (reduce_output): Implement.
+        * data/xslt/xml2text.xsl: Implement.
+        * data/xslt/xml2xhtml.xsl: Implement.
+
+2007-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Accept --report-file=FILE to override the default `.output' filename.
+        * NEWS (2.3a+): Mention.
+        * doc/bison.texinfo (Bison Options): Add an entry.
+        * src/files.c (compute_output_file_names): Don't override
+        spec_verbose_file if already set.
+        * src/getargs.c (usage): Document --report-file.
+        (REPORT_FILE_OPTION): New anonymous enum member.
+        (long_options): Add entry for it.
+        (getargs): Add case for it setting spec_verbose_file.
+
+        * build-aux/cross-options.pl: Don't record a short option just because
+        there's an arg.
+        * doc/.cvsignore: Add yacc.1.
+
+2007-11-14  Akim Demaille  <akim@epita.fr>
+
+        * doc/yacc.1.in: New.
+        * configure.ac, doc/Makefile.am: Adjust.
+        * configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
+        config.h symbol.
+        Use AC_SUBST for assignments too.
+        * src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
+
+2007-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/gram.c: Remove comments that duplicate comments in gram.h.
+
+        When reporting useless rules and nonterminals, say "useless in grammar"
+        instead of "useless", and say "useless in parser" instead of "never
+        reduced".  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
+        * NEWS (2.3a+): Mention this change.
+        * data/xslt/xml2text.xsl: Update output text and expected input XML
+        element names to match changes below.
+        * data/xslt/xml2xhtml.xsl: Likewise.
+        (xsl:template match="bison-xml-report"): Add missing entry in Table of
+        Contents: "Rules useless in parser due to conflicts".
+        * doc/bison.texinfo (Decl Summary): Reword a little.
+        (Understanding): Update example output for changes below.
+        * src/gram.c: (rule_useful_p): Rename to...
+        (rule_useful_in_grammar_p): ... this.
+        (rule_useless_p): Rename to...
+        (rule_useless_in_grammar_p): ... this.
+        (rule_never_reduced_p): Rename to...
+        (rule_useless_in_parser_p): ... this.
+        (grammar_rules_print): Update for renames.
+        (grammar_rules_print_xml): Update for renames.
+        (grammar_rules_never_reduced_report): Rename to...
+        (grammar_rules_useless_report): ... this since it is used for either
+        kind of useless rule.
+        * src/gram.h: Reword comments and update function names in prototypes.
+        * src/main.c (main): Say "rule useless in parser due to conflicts".
+        * src/print-xml.c (print_rules_never_reduced): Rename to...
+        (print_rules_useless_in_parser): ... this, and rename output XML
+        element "rules-never-reduced" to "rules-useless-in-parser".
+        (print_xml): Update for rename.
+        * src/print.c (print_results): Say "Rules useless in parser due to
+        conflicts".
+        * src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
+        (nonterminals_reduce): Say "nonterminal useless in grammar".
+        (reduce_output): Say "Nonterminals useless in grammar".
+        Say "Rules useless in grammar".
+        (reduce_xml): Rename output XML element "useless" to
+        "useless-in-grammar".
+        (reduce_print): Don't report the count of grammatically useless rules
+        as "rules never reduced" just because %yacc is specified.
+        In the correct report of this count, say nonterminal(s) and rule(s)
+        "useless in grammar".
+        * tests/conflicts.at (S/R in initial): Update expected output.
+        (Defaulted Conflicted Reduction): Likewise.
+        (Unreachable States After Conflict Resolution): Likewise.
+        * tests/existing.at (GNU pic Grammar): Likewise.
+        * tests/reduce.at (Useless Nonterminals): Likewise.
+        (Useless Rules): Likewise.
+        (Reduced Automaton): Likewise.
+        (Underivable Rules): Likewise.
+        (Empty Language): Likewise.
+
+2007-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
+        here document and before the EOF so that BSD's implementation of Bourne
+        shell doesn't parse the delimiter as part of the here document.
+        * doc/.cvsignore: Add cross-options.texi.
+        * src/getargs.c (usage): Add a blank line after the warning categories.
+
+2007-11-08  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/lalr1.java (Lexer): Remove usage of b4_pure_if.
+
+2007-11-05  Akim Demaille  <akim@epita.fr>
+
+        Remove Id: from bison.1.
+        * doc/Makefile.am (remove_time_stamp): Include the sed invocation.
+        (perl -0777 -pi -e 's/\.PP\nId): New.
+        (.x.1): Use it to ignore the version control revision.
+
+2007-11-05  Akim Demaille  <demaille@gostai.com>
+
+        * build-aux/Makefile.am: Ship cross-options.pl.
+        * doc/Makefile.am: Always refer to cross-options.texi with
+        $(srcdir).
+        (MAINTAINERCLEANFILES): Add it.
+
+2007-11-04  Akim Demaille  <demaille@gostai.com>
+
+        Generate the long/short option cross-table.
+        * build-aux/cross-options.pl: New.
+        * doc/Makefile.am (cross-options.texi): New.
+        * doc/bison.texinfo: Use it.
+
+2007-11-04  Akim Demaille  <demaille@gostai.com>
+
+        Generate bison.1 using help2man.
+        * doc/common.x, doc/bison.x: New.
+        * doc/Makefile.am (bison.1, .x.1): New.
+        The code is taken from autoconf-2.61/man/Makefile.am.
+        * configure.ac: Look for help2man.
+
+2007-11-04  Akim Demaille  <demaille@gostai.com>
+
+        Complete --help.
+        * src/getargs.c (usage): Document -W, make it clear that -d,
+        -g and -x have optional arguments.
+
+2007-11-04  Akim Demaille  <demaille@gostai.com>
+
+        Find sha1sum when named gsha1sum.
+        * bootstrap (find_tool): New.
+        ($SHA1SUM): New.
+
+2007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Deprecate %pure-parser and add `%define api.pure'.  Discussed starting
+        at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
+        * NEWS (2.3a+): Mention.
+        * data/bison.m4 (b4_pure_if): Don't define it here.
+        * data/c.m4 (b4_identification): Depend on individual skeletons to
+        define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
+        values of the %define variables api.pure or api.push_pull.  Define
+        YYPURE, YYPUSH, and YYPULL accordingly.
+        * data/glr.c: Define b4_pure_if based on `%define api.pure' unless
+        glr.cc has already defined b4_pure_flag.
+        * data/push.c: Define b4_pure_if based on `%define api.pure'.
+        Remove YYPUSH and YYPULL since they're back in b4_identification again.
+        * data/yacc.c: Define b4_pure_if based on `%define api.pure'.
+        * doc/bison.texinfo (Pure Decl): Update.
+        (Push Decl): Update.
+        (Decl Summary): Add api.pure to %define entry.
+        In %pure-parser entry, say it's deprecated and reference %define.
+        (Pure Calling): Update.
+        (Error Reporting): Update.
+        (C++ Scanner Interface): Update.
+        (How Can I Reset the Parser): Update.
+        (Table of Symbols): In %pure-parser entry, say it's deprecated and
+        reference %define.
+        * src/getargs.c (pure_parser): Remove global variable.
+        * src/getargs.h (pure_parser): Remove extern.
+        * src/output.c (prepare): Don't define pure_flag muscle.
+        * src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
+        wrapper around `%define api.pure'.
+        * tests/calc.at (Simple LALR Calculator): Update.
+        (Simple GLR Calculator): Update.
+        * tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
+        Update.
+        (GLR: Resolve ambiguity, pure, locations): Update.
+        (GLR: Merge conflicting parses, pure, no locations): Update.
+        (GLR: Merge conflicting parses, pure, locations): Update.
+        * tests/glr-regression.at (Uninitialized location when reporting
+        ambiguity): Update
+        * tests/input.at (Unused %define api.pure): New test case.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
+        AT_PURE_IF and AT_PURE_AND_LOC_IF.
+        * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
+
+2007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        %define push_pull -> %define api.push_pull.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
+        * data/push.c: Expect the new name.
+        * data/yacc.c: Likewise.
+        * doc/bison.texinfo (Push Decl): Update.
+        (Decl Summary): Update %define entry.
+        (Push Parser Function): Update.
+        (Pull Parser Function): Update.
+        (Parser Create Function): Update.
+        (Parser Delete Function): Update.
+        * tests/calc.at (Simple LALR Calculator): Update.
+        * tests/input.at (%define enum variables): Update.
+        * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
+        (Push Parsing: Multiple impure instances): Update.
+        (Push Parsing: Unsupported Skeletons): Update.
+        * tests/torture.at (Exploding the Stack Size with Alloca): Update.
+        (Exploding the Stack Size with Malloc): Update.
+
+        * NEWS (2.3a+): Add an entry for the push parser, and clean up the
+        other entries some.
+
+2007-10-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For the XML output's terminal element, rename @number to @token-number,
+        and add @symbol-number.  In the nonterminal element, rename @number to
+        @symbol-number.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
+        * data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
+        renames.
+        (xsl:template match="nonterminal"): Likewise.
+        * data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
+        (xsl:template match="nonterminal"): Likewise.
+        * src/print-xml.c (print_grammar): Implement.
+
+2007-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
+        2007-10-11 change, the child elements here are items not rules.
+        (xsl:template match="item"): New.
+        (xsl:template match="rule"): Update for new reduced itemset.
+        (xsl:template match="point"): Remove.
+        (xsl:template match="empty"): For consistency with --graph, don't
+        output "/* empty */".
+        * data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
+        line-wrap, don't pass a negative value as first-line-length since this
+        won't work with the following changes.
+        (xsl:template name="line-wrap"): Simplify slightly.
+        (xsl:template name="ws-search"): Eliminate recursion.
+        * src/print_graph.c (print_core): Don't print a reduction's lookahead
+        set next to an item whose dot is not at the end of the RHS even if it
+        happens to be associated with the same rule.
+
+2007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Add %define lr.keep_unreachable_states.
+        * NEWS (2.3a+): Mention it in the entry for unreachable state removal.
+        * doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
+        * src/main.c (main): Implement it.
+        * tests/conflicts.at (Unreachable States After Conflict Resolution):
+        Extend to test it, and fix a typo.
+
+2007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
+        * doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
+        the example .output text.
+        * tests/regression.at (Extra lookahead sets in report): Improve wording
+        of comments.
+
+2007-10-17  Wojciech Polak  <polak@gnu.org>
+
+        * src/print-xml.c (print_grammar): Renamed
+        <terminal> and <nonterminal> attributes:
+        "type" to "number" and "symbol" to "name".
+        * data/xslt/xml2text.xsl (xsl:template match="terminal"):
+        Use new attribute names.
+        (xsl:template match="nonterminal"): Likewise.
+        * data/xslt/xml2xhtml.xsl: Likewise.
+
+2007-10-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
+        (Option Cross Key): Likewise.
+
+        * src/print-xml.c (print_core): Don't print a reduction's lookahead set
+        next to an item whose dot is not at the end of the RHS even if it
+        happens to be associated with the same rule.
+        * src/print.c (print_core): Likewise.
+        * tests/conflicts.at (Unresolved SR Conflicts): Update output.
+        (Resolved SR Conflicts): Update output.
+        * tests/regression.at (Extra lookahead sets in report): New test case.
+
+2007-10-11  Wojciech Polak  <polak@gnu.org>
+
+        * src/print-xml.c (print_core): Remove item set
+        redundancy.
+        * data/xslt/bison.xsl (bison:ruleNumber): New key.
+        Improve processing time. Suggested by Joel E. Denny.
+        * data/xslt/xml2dot.xsl (xsl:template name="escape"):
+        Write xsl:param "required" attribute as comment.
+        * data/xslt/xml2text.xsl (xsl:template match="item"): New.
+        (xsl:template match="rule"): Support new reduced itemset.
+        (xsl:template match="point"): Remove.
+        * data/xslt/xml2xhtml.xsl: Likewise.
+
+2007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/getargs.c (version): Update copyright year.
+
+2007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Make xml2dot.xsl and --graph produce the same output.
+        * data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
+        instead of a `\n'.  That is, don't add escapes yet or they'll be doubly
+        escaped later.
+        (xsl:template name="output-node"): Use the new escape template instead
+        of the string-replace template directly.
+        (xsl:template name="output-edge"): Likewise.
+        (xsl:template name="escape"): New, escapes backslashes and newlines in
+        addition to quotation marks.
+        * src/graphviz.c (start_graph, output_node, output_edge): Add
+        whitespace to output for legibility.
+
+        Make xml2text.xsl and --report produce the same output, and remove the
+        XML "conflicts" element since a conflict summary is easily extracted
+        from the automaton.
+        * data/xslt/bison.xsl: New.
+        (xsl:template match="state" mode="bison:count-conflicts): New.
+        * data/xslt/xml2text.xsl: Import bison.xsl.
+        (xsl:template match="bison-xml-report"): Instead of styling the
+        "conflicts" element, style the "automaton" element with mode
+        "conflicts".  Unlike the former, the latter lists S/R and R/R
+        conflicts for a state on the same line.
+        (xsl:template match="conflicts"): Remove.
+        (xsl:template match="conflict"): Remove.
+        (xsl:template match="terminal"): Line-wrap the list of rules in which
+        the terminal is used.
+        (xsl:template match="nonterminal"): Likewise for nonterminals.
+        (xsl:template match="automaton" mode="conflicts"): New.
+        (xsl:template match="state" mode="conflicts"): New.
+        (xsl:template name="line-wrap"): New.
+        (xsl:template name="ws-search"): New.
+        * data/xslt/xml2xhtml.xsl: Import bison.xsl.
+        (xsl:template match="bison-xml-report"): Instead of styling the
+        "conflicts" element, style the "automaton" element with mode
+        "conflicts."
+        (xsl:template match="conflicts"): Remove.
+        (xsl:template match="conflict"): Remove.
+        (xsl:template match="automaton" mode="conflicts"): New.
+        (xsl:template match="state" mode="conflicts): New.
+        * src/conflicts.c (conflicts_output_xml): Remove.
+        * src/conflicts.h (conflicts_output_xml): Remove prototype.
+        * src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
+        * src/print.c (print_grammar): Consistently wrap at the 66th column so
+        the corresponding XSLT is easier.  Also, never wrap between a word and
+        the comma that follows it.
+
+2007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Improve C++ namespace support.  Discussed starting at
+        <http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
+        * data/c++.m4: (b4_namespace_ref, b4_namespace_open,
+        b4_namespace_close): New macros that interpret the %define variable
+        "namespace" so its value can contain "::" to indicate nested
+        namespaces.
+        * data/glr.cc (b4_namespace): Don't define, and replace all uses with
+        the above macros.
+        * data/lalr1.cc (b4_namespace): Likewise.
+        * data/location.cc (b4_namespace): Likewise.
+        * doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
+        inside a new table in the general %define entry.  Document `%define
+        namespace' there as well.  Point the %name-prefix entry to it since it
+        explains it more completely in the case of C++.
+        (C++ Bison Interface): Mention `%define namespace' instead of
+        %name-prefix.
+        (Table of Symbols): Remove the `%define push_pull' entry.  The %define
+        entry suffices.
+        * tests/c++.at (Relative namespace references): New test case.
+        (Absolute namespace references): New test case.
+        (Syntactically invalid namespace references): New test case.
+        * tests/input.at (C++ namespace reference errors): New test case.
+
+2007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Add syncline support and location accessor to internal %define
+        interfaces.
+        * data/bison.m4 (b4_percent_define_get_loc): New.
+        (b4_percent_define_get_syncline): New.
+        (b4_percent_define_flag_if): Use b4_percent_define_get_loc.
+        (b4_percent_define_default): Record defining location as line 1 rather
+        than 0 for the sake of synchronizing #line's, and define
+        b4_percent_define_syncline(VARIABLE).
+        (b4_percent_define_check_values): Use b4_percent_define_get_loc.
+        * src/muscle_tab.c (muscle_syncline_grow): New.
+        (muscle_code_grow): Use muscle_syncline_grow.
+        (muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
+        define b4_percent_define_syncline(VARIABLE).
+        (muscle_percent_define_get_loc): New.
+        (muscle_percent_define_get_syncline): New.
+        (muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
+        remove some unused variables.
+        (muscle_percent_define_default): Record defining location as line 1
+        rather than 0 for the sake of synchronizing #line's, and define
+        b4_percent_define_syncline(VARIABLE).
+        (muscle_percent_define_check_values): Use
+        muscle_percent_define_get_loc.
+        * src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
+        (muscle_percent_define_get_syncline): Prototype.
+        * tests/skeletons.at (%define Boolean variables: invalid skeleton
+        defaults): Update output for location change.
+        (Complaining during macro argument expansion): Extend to test
+        b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
+
+2007-10-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix some error-reporting macro bugs.
+        * data/bison.m4 (b4_cat): New.
+        (b4_error, b4_error_at): Use b4_cat to send error directives directly
+        to stdout so they don't become arguments to other macros.  Update
+        comments and add examples.
+        (b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
+        add examples.
+        (b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
+        after printing the error directive so that M4 doesn't report subsequent
+        problems that are induced by this problem.
+        * src/scan-skel.l: Recognize @` digraph outside of directive arguments
+        instead of just in them.  Recognize @\n in both places.  Both expand to
+        the empty string.  Needed by b4_cat.
+        * tests/skeletons.at (Complaining during macro argument expansion):
+        New test case.
+        (Fatal errors make M4 exit immediately): New test case.
+
+2007-10-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Implement --print-datadir.
+        * src/getargs.c (usage): Mention.
+        (PRINT_DATADIR_OPTION): New anonymous enum member.
+        (long_options): Add entry for it.
+        (getargs): Add case for it calling compute_pkgdatadir.
+        * src/output.c (output_skeleton): Encapsulate data directory
+        computation from here...
+        (prepare): ... and from here...
+        (compute_pkgdatadir): ... into this new function.
+        * src/output.h (compute_pkgdatadir): Prototype.
+
+2007-09-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/print-xml.c (escape_bufs): New static global variable
+        replacing...
+        (xml_escape_n): ... the static local variable buf here.
+        (print_xml): Free memory for escape_bufs.
+        * src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
+
+2007-09-25  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Replace `%push-parser' and `%push-pull-parser' with
+        `%define push_pull "push"' and `%define push_pull "both"'.
+        `%define push_pull "pull"' is the default.
+        * doc/bison.texinfo (Push Decl, Push Parser Function,
+        Pull Parser Function, Parser Create Function, Parser Delete Function):
+        Update declarations.
+        (Decl Summary, Table of Symbols): Replace %push-parser and
+        %push-pull-parser entries with a %define push_pull entry.
+        * data/bison.m4 (b4_percent_define_check_values): New macro.
+        (b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
+        definitions...
+        * data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
+        definitions...
+        * data/push.c: ... to here and compute them from the value of the
+        %define variable push_pull.
+        * data/c-skel.m4: Instead of choosing the push.c skeleton for push
+        parsing requests here...
+        * data/yacc.c: ... hack this to switch to push.c any time
+        b4_use_push_pull_flag or the %define variable push_pull is set.  This
+        will go away when we mv push.c yacc.c.
+        * data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
+        push parsing is not supported since unused %define variables are
+        reported anyway.
+        * src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
+        * src/muscle_tab.h (muscle_percent_define_check_values): Update
+        comments for consistency with b4_percent_define_check_values.
+        * src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
+        muscles.
+        * src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
+        Remove.
+        (prologue_declaration): Remove %push-parser and %push-pull-parser
+        rules.
+        * src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
+        * tests/calc.at: Update declarations.
+        * tests/input.at (%define enum variables): New test case.
+        * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
+        declaration.
+        (Push Parsing: Multiple impure instances): Update declaration.
+        (Push Parsing: Unsupported Skeletons): New test case.
+        * tests/torture.at (Exploding the Stack Size with Alloca): Update
+        declaration.
+        (Exploding the Stack Size with Malloc): Update declaration.
+
+2007-09-24  Wojciech Polak  <polak@gnu.org>
+
+        Add XSLT transformations.
+
+        * data/xslt/xml2dot.xsl: Transform XML into DOT.
+        * data/xslt/xml2text.xsl: Transform XML into plain text.
+        * data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
+        * data/Makefile.am (xsltdir): New variable.
+        (dist_xslt_DATA): Add xslt/*.xsl files.
+
+2007-09-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
+        Problem reported by Wojciech Polak.
+        * src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
+        (xml_printf): Undo change I made on 21 September; that is,
+        indent 2 spaces, not 1.
+
+2007-09-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Pacify ./configure --enable-gcc-warnings.
+        * src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
+        `char const *' instead of `char *'.
+        * src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
+        local variable `sep'.
+
+2007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
+        elsewhere.
+        * src/print-xml.c: Prefer "const" after types; that's more consistent.
+        (xml_printf): Indent just 1 space for level.
+        (e_char, xlate_char): Remove.
+        (xml_escape_string): Rewrite to avoid undefined behavior (used
+        storage that was freed from the stack).
+        (xml_escape_n): Don't bother checking for subscript error.
+
+2007-09-21  Wojciech Polak  <polak@gnu.org>
+
+        Add Bison XML Automaton Report.
+
+        Add support for an -x option to generate an XML report.
+        It is not documented yet.
+        * src/print-xml.c: New file.
+        * src/print-xml.h: Likewise.
+        * lib/timevar.def (TV_XML): New var.
+        * src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
+        * src/conflicts.c: Include print-xml.h.
+        (solved_conflicts_xml_obstack): New var.
+        (log_resolution, conflicts_solve, conflicts_free):
+        Add support for XML report.
+        (conflicts_output_val): New function.
+        * src/conflicts.h (conflicts_output_val): New decl.
+        * src/files.c (spec_xml_file): New var.
+        (compute_output_file_names, output_file_names_free): Add XML support.
+        * src/files.h (spec_xml_file): New decl.
+        * src/getargs.c (xml_flag): New var.
+        (usage, short_options, long_options, getargs): Add XML support.
+        * src/getargs.h (xml_flag): New decl.
+        * src/gram.c: Include print-xml.h.
+        (rule_lhs_print_xml, rule_rhs_print_xml):
+        (grammar_rules_partial_print_xml, grammar_rules_print_xml):
+        New functions.
+        * src/gram.h: Declare external ones.
+        * src/main.c: Include print-xml.h.
+        (main): Add XML support.
+        * src/reduce.c: Include print-xml.h.
+        (reduce_xml): New function.
+        * src/reduce.h: Declare it.
+        * src/state.c: Include print-xml.h.
+        (state_new): Add XML support.
+        (state_rule_lookahead_tokens_print_xml): New function.
+        * src/state.h: Declare it.
+        (struct state): New member solved_conflicts_xml.
+        * src/symtab.c (symbol_class_get_string): New function.
+        * src/symtab.h: Declare it.
+
+2007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * GNUmakefile: Switch to coreutils's version.
+        * bootstrap: Likewise.
+        * Makefile.cfg: Adjust to new GNUmakefile.
+        * README-hacking: Likewise.
+
+        Import from gnulib:
+
+        2006-08-18  Paul Eggert  <eggert@cs.ucla.edu>
+                    Bruno Haible  <bruno@clisp.org>
+
+        * m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
+        and is a script that invokes bison. Tighten the code. Add comments.
+
+2007-08-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Spell "boolean" as "Boolean".  Reported by Akim Demaille.
+        * data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
+        * doc/bison.texinfo (Decl Summary): Fix.
+        * src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
+        * tests/input.at (Boolean %define variables): Update output.
+        * tests/skeletons.at (%define boolean variables: invalid skeleton
+        defaults): Rename to...
+        (%define Boolean variables: invalid skeleton defaults): ... this and
+        update output.
+
+2007-08-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In impure push mode, don't allow more than one yypstate to be allocated
+        since multiple impure parsers would corrupt yynerrs.
+        * data/push.c (yypstate_allocated): New static global variable
+        initialized to 0.
+        (yypull_parse): If yypstate_new returns 0, don't report it as memory
+        exhaustion if yypstate_allocated is 1, but still return 2.
+        (yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
+        already 1.  Otherwise, set it to 1.
+        (yypstate_delete): Set it to 0.
+        * tests/push.at (Push Parsing: Multiple impure instances): New test
+        case.
+
+2007-08-17  Bob Rossi  <bob@brasko.net>
+
+        * doc/bison.texinfo (Push Decl): Document the push parser.
+        (Table of Symbols): Ditto.
+        (Pure Decl): Ditto.
+        (Decl Summary): Ditto.
+        (Multiple Parsers, Push Parser Function, Pull Parser Function,
+        Parser Create Function, Parser Delete Function):
+        Add new push parser symbols.
+        (Table of Symbols): Document push-parser, push-pull-parser,
+        yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
+
+2007-08-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Update to GPLv3.
+        * doc/gpl-3.0.texi: New file.
+        * doc/gpl.texi: Remove.
+        * COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
+        * Makefile.maint, NEWS, PACKAGING, README, README-alpha:
+        * README-hacking, TODO, bootstrap, bootstrap.conf:
+        * configure.ac, data/Makefile.am, data/README, data/bison.m4:
+        * data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
+        * data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
+        * data/lalr1.cc, data/lalr1.java, data/location.cc:
+        * data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
+        * djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
+        * djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
+        * djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
+        * djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
+        * doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
+        * etc/bench.pl.in, examples/Makefile.am, examples/extexi:
+        * examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
+        * lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
+        * lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
+        * lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
+        * lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
+        * lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
+        * lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
+        * lib/timevar.c, lib/timevar.def, lib/timevar.h:
+        * lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
+        * m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
+        * m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
+        * src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
+        * src/complain.c, src/complain.h, src/conflicts.c:
+        * src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
+        * src/files.h, src/flex-scanner.h, src/getargs.c:
+        * src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
+        * src/lalr.c, src/lalr.h, src/location.c, src/location.h:
+        * src/main.c, src/muscle_tab.c, src/muscle_tab.h:
+        * src/nullable.c, src/nullable.h, src/output.c, src/output.h:
+        * src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
+        * src/print.c, src/print.h, src/print_graph.c:
+        * src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
+        * src/reduce.h, src/relation.c, src/relation.h:
+        * src/revision.h, src/scan-code.h, src/scan-code.l:
+        * src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
+        * src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
+        * src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
+        * src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
+        * tests/Makefile.am, tests/actions.at, tests/c++.at:
+        * tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
+        * tests/existing.at, tests/glr-regression.at:
+        * tests/headers.at, tests/input.at, tests/java.at:
+        * tests/local.at, tests/output.at, tests/push.at:
+        * tests/reduce.at, tests/regression.at, tests/sets.at:
+        * tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
+        * tests/torture.at:
+        Update to GPLv3.
+
+2007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Get rid of broken %no-parser, -n, and --no-parser implementation and
+        documentation.
+        * TODO: Don't mention them.
+        * doc/bison.1: Likewise.
+        * doc/bison.texinfo (Decl Summary): Likewise.
+        (Bison Options): Likewise.
+        (Option Cross Key): Likewise.
+        * src/getargs.c (no_parser_flag): Remove global variable.
+        (usage): Don't print description of -n and --no-parser.
+        (long_options): Remove --no-parser entry here.
+        (getargs): Remove -n case in the switch here.
+        * src/getargs.h (no_parser_flag): Remove extern.
+        * tests/regression.at (Web2c Actions): Remove comment that mentions
+        --no-parser.
+
+2007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
+        name user variables starting with `yy'.  Just pass NULL instead of a
+        dummy local &yylval to yypush_parse.
+        * tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
+        starting with `yy'.
+
+2007-08-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
+        true since it's then always used regardless of whether yyoverflow is
+        defined.  Reported by Christian Burger at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
+        * THANKS: Add Christian Burger.
+
+        * ChangeLog: For changes in doc/bison.texinfo, consistently reference
+        node names: say "Decl Summary" not "Bison Declaration Summary".
+
+2007-07-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/muscle_tab.c (muscle_percent_define_flag_if): In order to
+        determine whether this function has already complained about an invalid
+        value for a %define boolean variable, don't check whether Bison has
+        ever examined the value.  As written, the check was a tautology.
+        Instead, record and check for this complaint using a separate muscle.
+
+2007-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix push parsing memory leak reported by Brandon Lucia at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
+        * THANKS: Add Brandon Lucia.
+        * data/push.c (yypstate_delete): Free the stack if it was reallocated
+        but the parse never completed and thus freed it.
+        * tests/Makefile.am (TESTSUITE_AT): Add push.at.
+        * tests/testsuite.at: Include push.at.
+        * test/push.at: New.
+        (Push Parsing: Memory Leak for Early Deletion): New test case.
+
+2007-07-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Improve handling of multiple S/R conflicts in the same state and of S/R
+        conflicts involving multiple reductions.
+        * src/conflicts.c (resolve_sr_conflict): Don't assign the error action
+        set for a state here or Bison will abort if it is reassigned on a
+        later conflicted reduction in the same state.
+        Similarly, don't finalize and assign the solved conflicts report here
+        or it will be lost if it is reassigned on a later conflicted reduction
+        in the same state.
+        (set_conflicts): Instead, assign them both here after all S/R conflicts
+        in the state have been fully examined.
+        * src/print.c (shift_set): Rename to...
+        (no_reduce_set): ... this.
+        (print_reductions): Update for rename, and add %nonassoc error action
+        tokens to no_reduce_set so that, when printing the first remaining
+        reduction on an error action token, the reduction is enclosed in
+        brackets.
+        (print_results): Update for rename.
+        * tests/conflicts.at (Solved conflicts report for multiple reductions
+        in a state): New test case.
+        (%nonassoc error actions for multiple reductions in a state): New test
+        case.
+
+        * src/main.c (main): Don't depend on C99 features.
+
+2007-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * build-aux/.cvsignore: Add compile.
+        * lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
+        uniwidth.
+
+2007-07-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * bootstrap (slurp): Create target directories that don't exist.
+        Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
+
+2007-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * LR0.c (new_itemsets): Fix wording in comments: say item index rather
+        than item number.
+        * closure.c (closure): Likewise.
+        * state.h (reductions): Comment sorting of rules.
+        (state): Comment sorting of items.
+
+2007-07-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix C++ test cases after recent Gnulib changes.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
+        * examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
+        definition in order to avoid Gnulib headers since we don't use config.h
+        here.
+        * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
+        rather than AT_DATA so that config.h is included.
+
+2007-07-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
+        instead of fprintf.  Guard these functions with #if YYDEBUG instead of
+        #ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
+        and so that YYFPRINTF is guaranteed to be defined here.
+
+2007-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
+        with...
+        (muscle_percent_define_check_values): ... this more helpful function.
+        Again, it's not used yet, but it will be.
+        * src/muscle_tab.h: Likewise.
+
+        Improve some comments in parser table construction.
+        * src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
+        (generate_states): Don't mention ruleset, which is internal to closure.
+        * src/closure.c (closure): Explain sorting of core and itemset, which
+        is required for this function to behave correctly.
+        * src/closure.h (closure): Mention sorting.
+
+2007-05-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/lalr.c (state_lookahead_tokens_count): For code readability,
+        move the check for disabled transitions to an aver since conflict
+        resolution hasn't happened yet.
+
+        * src/lalr.c (state_lookahead_tokens_count): Remove the check that
+        labels a state as inconsistent just because it has error transitions.
+        The original form of this check appeared in revision 1.1 of lalr.c,
+        which was committed on 1991-12-21.  Now (at least), changing the
+        consistency label on such a state appears to have no useful effect in
+        any of the places it is examined, which I enumerate below.  The key
+        point to understanding each item in this enumeration is that a state
+        with an error transition is labelled consistent in the first place only
+        if it has no rules, so the check cannot matter for states that have
+        rules.  (1) Labelling a state as inconsistent will cause set_conflicts
+        to try to identify its conflicts, and a state must have *rules* to have
+        conflicts.  (2) Labelling a state as inconsistent will affect how
+        action_row sets the default *rule* for the state.  (3) Labelling a
+        state as inconsistent will cause build_relations to add lookback edges
+        to *rules* in that state.
+        * src/state.h (struct state): Word the comment for member consistent
+        more carefully.
+
+2007-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't depend on C99 features.
+        * src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
+        * src/lalr.c (lalr_update_state_numbers): Fix for-loop.
+        * src/reader.c (check_and_convert_grammar): Fix for-loop.
+        * src/state.c (state_mark_reachable_states): Fix for-loop.
+        (state_remove_unreachable_states): Fix for-loop.
+
+        Don't widen struct state with member reachable just to temporarily
+        record reachability.  Instead, use a local bitset.
+        * src/state.h (struct state): Remove member.
+        * src/state.c (state_new): Don't initialize it.
+        (state_mark_reachable_states): Rename to...
+        (state_record_reachable_states): ... this, and use bitset.
+        (state_remove_unreachable_states): Use bitset.
+
+2007-05-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/Makefile.am (yacc): Quote target action commands properly so
+        that the yacc script isn't corrupt.  Reported by Hans Aberg at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
+
+        * data/glr.c (yylval): As in yacc.c, don't extern in the header for
+        the case of pure parsers.  Reported by Frans Englich at
+        <http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
+        * THANKS: Add Frans Englich.
+
+        * NEWS (2.3a+): In the %code entry, reference section `Bison
+        Declaration Summary' from the manual now since the %code summary has
+        moved there.
+        * doc/bison.texinfo (Prologue Alternatives): Mention that directives
+        in the rules section must be terminated by semicolons.
+
+2007-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Extend the front-end API for %define variables to more completely
+        mirror the back-end.  This will be useful in the future.
+        * data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
+        Update comments to mention the new front-end counterparts of these
+        macros.
+        * src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
+        for muscle_string_decode and muscle_location_decode.
+        (muscle_string_decode): New static function.
+        (muscle_location_decode): Use MUSCLE_COMMON_DECODE.
+        (muscle_percent_define_get, muscle_percent_define_ifdef): New
+        functions.
+        (muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
+        muscle_percent_define_get to mimic the b4_percent_define_flag_if
+        implementation more closely.
+        (muscle_percent_define_invalid_value): New function.
+        * src/muscle_tab.h (muscle_percent_define_get,
+        muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
+        Prototype.
+
+2007-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS (2.3a+): Mention yesterday's state-removal change.
+        (2.3a): Remove the %language entry, which was added after 2.3a.
+        * src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
+        src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
+        src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
+        tests/existing.at: Update copyright date.
+
+2007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        If conflict resolution makes states unreachable, remove those states,
+        report rules that are then unused, and don't report conflicts in those
+        states.
+        * src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
+        New global function.
+        * src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
+        function.
+        * src/main.c (main): After conflict resolution, remove the unreachable
+        states and update all data structures that reference states by number.
+        * src/state.c (state_new): Initialize each state's reachable member to
+        false.
+        (state_mark_reachable_states): New static function.
+        (state_remove_unreachable_states): New global function.
+        * src/state.h (struct state): Add member bool reachable.
+        (state_remove_unreachable_states): Prototype.
+        * tests/conflicts.at (Unreachable States After Conflict Resolution):
+        New test case.
+        * tests/existing.at (GNU pic Grammar): Update test case output now that
+        an unused rule is discovered.
+
+2007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Minor code cleanup in parser table construction.
+        * src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
+        (new_itemsets, save_reductions): Update for rename to nitemset.
+        * src/closure.c (nritemset): Rename to...
+        (nitemset): ... this since the "r" appears to meaningless and isn't
+        used in the comments.
+        (closure): Update for rename.
+        * src/closure.h (nritemset): Update extern to...
+        (nitemset): ... this.
+        * src/lalr.c (LA): Fix a typo in comments.
+        * src/print.c (print_core): Update for rename to nitemset.
+        * src/print_graph.c (print_graph): Likewise.
+        * src/state.h: Fix some typos in header comments.
+
+2007-04-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * THANKS: Use ASCII for Sebastien Fricker's name.  Bison source
+        still sticks to ASCII.  Sorry!
+
+        * README-hacking: New file, taken mostly from coreutils, with changes
+        for Bison.  Contains much of the contents of:
+        * README-cvs: Remove.
+        * bootstrap: Sync from gnulib.
+        * build-aux/.cvsignore: Remove *.t, mkinstalldirs.
+        * lib/.cvsignore: Add wchar.h, wctype.h.  Remove exit.h.
+
+2007-03-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
+        Setzer.
+        (Java Differences): Fix some typos.
+        * THANKS: Add Sebastian Setzer.
+
+2007-03-07  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/java.m4 (b4_single_class_if): Remove.
+        (b4_abstract_if): Look at "%define abstract".
+        (b4_lexer_if): New.
+        (b4_union_name): Rename...
+        (b4_yystype): ... to this.  Map to "%define stype".
+        (b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
+        b4_maybe_throws): Fix quoting.
+        (b4_lex_param_call): Move below to keep b4_*_param_decl close.
+        * data/lalr1.java (Lexer interface): Always define.
+        (Lexer interface within parser class): Remove.
+        (YYLexer class): New, used when "%code lexer" is present.
+        (constructor): When "%code lexer" is used, pass %lex-param
+        to the lexer constructor.
+        (yylex, yyparse): Remove %lex-param from method invocations
+        (YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
+
+        * doc/bison.texinfo (Java Bison Interface): Mention "%define
+        abstract".  Rename "%define union_name" to "%define stype".
+        Rename method names according to previous patch.
+        (Java Scanner Interface): Describe "%code lexer" instead of
+        "%pure-parser" and "%define single_class".
+        (Java Differences): Mention "%code lexer".
+
+        * tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
+        Include scanner here, using macros from tests/local.at.
+        (AT_DATA_CALC_Y): Remove final argument.
+        (_AT_CHECK_JAVA_CALC): Likewise.
+        (AT_CHECK_JAVA_CALC): Likewise.  Test all four combinations
+        of %locations and %error-verbose.
+        (main): Test with and without %lex-param.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
+        (AT_BISON_OPTION_POPDEFS): Pop it.
+
+2007-03-07  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        DJGPP spefic issue.  Inhibit the use of disallowed characters for
+        file name genertion on Win98, WinXP, etc.  These are |<>":?*\
+        and concern testsuite case 46.
+        * Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
+        * djgpp/testsuite.sed: Inhibit the use of disallowed characters.
+        * djgpp/config.bat: Inhibit the use of disallowed characters.
+
+2007-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Miscellaneous %define and %code cleanup.
+        * data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
+        values are interpreted.
+        * doc/bison.texinfo (Decl Summary): Clean up and extend %define
+        documentation a little more.
+        * src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
+        muscle_percent_define_insert, muscle_percent_code_grow): New
+        functions/macros.
+        * src/muscle_tab.h (muscle_percent_define_insert,
+        muscle_percent_code_grow): Prototype.
+        * src/parse-gram.y (prologue_declaration): Use
+        muscle_percent_define_insert and muscle_percent_code_grow when parsing
+        %define and %code directives.
+
+        Make it easy to share %define boolean variables between the front-end
+        and back-end.  Though not used yet, this will be useful in the future.
+        * data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
+        Bison uses of names rather than just skeleton uses of names.
+        (b4_percent_define_get, b4_percent_define_ifdef): Rename
+        b4_percent_define_skeleton_variables(VARIABLE) to
+        b4_percent_define_bison_variables(VARIABLE).
+        (b4_percent_code_get, b4_percent_code_ifdef): Rename
+        b4_percent_code_skeleton_qualifiers(QUALIFIER) to
+        b4_percent_code_bison_qualifiers(QUALIFIER).
+        (b4_check_user_names_wrap): Update for renames.
+        * src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
+        muscle_percent_define_default): New functions mimicking
+        b4_percent_define_flag_if and b4_percent_define_default.
+
+        For %define variables, report locations for invalid values and
+        redefinitions.
+        * data/bison.m4 (b4_percent_define_flag_if): Read
+        b4_percent_define_loc(VARIABLE) to report the location of an invalid
+        value for VARIABLE.
+        (b4_percent_define_default): Save a special location in
+        b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
+        must later be reported as invalid.
+        * src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
+        functions.
+        (muscle_percent_define_insert): Record the location of VARIABLE in
+        muscle percent_define_loc(VARIABLE), and use it to report the previous
+        location for a redefinition.
+        (muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
+        (muscle_percent_define_default): Update like b4_percent_define_default.
+        (muscle_grow_user_name_list): Rename to...
+        (muscle_user_name_list_grow): ... this for consistency and use
+        muscle_location_grow.
+        * src/muscle_tab.h (muscle_location_grow): Prototype.
+        * tests/input.at (%define errors): Update expected output.
+        * tests/skeletons.at (%define boolean variables: invalid skeleton
+        defaults): New test case.
+
+2007-02-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/print.c (lookahead_set, state_default_rule): Remove.
+        (print_reductions): Replace state_default_rule invocation with
+        equivalent use of yydefact, which was computed in token_actions in
+        tables.c.
+        (print_results): Don't allocate lookahead_set.
+
+2007-02-27  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/lalr1.java: Prefix all private members with yy.
+
+2007-02-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Use YYFPRINTF instead of fprintf where appropriate.  Reported by
+        Sebastien Fricker at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
+        * THANKS: Add Sebastien Fricker.
+        * data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
+        * doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
+        accept a variable number of arguments.
+
+2007-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
+
+2007-02-13  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        * djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
+        * djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
+        * djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
+
+2007-02-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Undo my 2007-02-07 change, switching back to the c-strcase module
+        introduced in the 2007-02-03 change.  Bruno Haible reported that
+        the 2007-02-07 change would be dangerous in Turkish if we add a
+        language whose name contains "i", since "i" is not lowercase "I"
+        in Turkish.
+        * bootstrap.conf (gnulib_modules): Add c-strcase.  Remove strcase.
+        * lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
+        c-strcasecomp.c, c-strncasecmp.c.  Remove strcasecmp.c, strncasecmp.c.
+        * m4/.cvsignore: Remove strcase.m4.
+        * src/getargs.c: Revert 2007-02-07 change, as follows.
+        Include c-strcase.h.
+        (language_argmatch): Use c_strcasecmp rather than strcasecmp.
+
+2007-02-11  Bruno Haible  <bruno@clisp.org>
+
+        Enable the Java related testsuite tests when the only Java compiler
+        found is a gcj < 4.3.  Discussed at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
+        * configure.ac (gt_JAVACOMP): Don't specify a target_version.
+
+2007-02-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/Makefile.am: Update copyright date.
+        * data/push.c (yypull_parse): Report memory exhaustion and return 2 if
+        yypstate_new returns NULL.
+        (yypstate_new): Return NULL if malloc does.
+        * src/reader.c (packgram): Move translation of rule actions from the
+        beginning of packgram to...
+        (check_and_convert_grammar): ... here right before packgram is invoked
+        so it's easier to write more complete comments, and remove redundant
+        code.
+
+2007-02-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        As in semantic actions, make @$ in %initial-action, %destructor, and
+        %printer imply %locations.
+        * src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
+        scanning @$.
+        * tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
+        (@$ in %initial-action implies %locations,
+        @$ in %destructor implies %locations,
+        @$ in %printer implies %locations): ... these new test cases.
+
+2007-02-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Undo most of the 2007-02-03 change, switching to the strcase module
+        now that gnulib strcase has been fixed.
+        * bootstrap.conf (gnulib_modules): Remove c-strcase.  Add strcase.
+        * lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
+        c-strcasecomp.c, c-strncasecmp.c.  Add strcasecmp.c, strncasecmp.c
+        * m4/.cvsignore: Add strcase.m4.
+        * src/getargs.c: Revert 2007-02-03 change, as follows.
+        Don't include c-strcase.h.
+        (language_argmatch): Use strcasecmp rather than c_strcasecmp.
+        strcasecmp has "unspecified behavior" outside the POSIX locale,
+        but it works fine in practice if at least one argument is ASCII,
+        as is the case in Bison.
+
+2007-02-07  Paolo Bonzini  <bonzini@gnu.org>
+
+        * tests/java.at: Skip tests if only one of javac/java is present.
+        Reported by Joel E. Denny.
+        * tests/atlocal.in: Adjust copyright years.
+
+2007-02-05  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/lalr1.java (Stack): Work around old verifiers that disallow
+        access to the private fields of an inner class, from the outer class.
+        We can make Stack's fields public because user code doesn't have access
+        to the instance of Stack used by parse().  Reported by Paul Eggert.
+
+2007-02-03  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * .cvsignore: Add javacomp.sh, javaexec.sh.  Is this really
+        the right spot for these files?
+        * bootstrap.conf (gnulib_modules): Add c-strcase.
+        * lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
+        c-strncasecmp.c.
+        * src/getargs.c: Include c-strcase.h.
+        (language_argmatch): Use c_strcasecmp rather than strcasecmp,
+        to avoid unspecified behavior.
+
+2007-02-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Decl Summary): Correct typo.
+
+2007-01-30  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
+        Complain if the value does not match empty, "true" or "false".
+        * data/c++.m4: Adjust default definitions of %define variables.
+        * data/java.m4: Adjust default definitions of %define variables.
+        * doc/bison.texinfo (Decl Summary): Adjust the %define entry according
+        to above behavior.
+        * tests/input.at (Boolean %define variables): Test new behavior.
+
+2007-01-29  Paolo Bonzini  <bonzini@gnu.org>
+
+        * NEWS: Mention java.
+        * TODO: Remove things that are done.
+        * bootstrap.conf: Add javacomp-script and javaexec-script.
+        * configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
+
+        * data/Makefile.am: Add new files.
+        * data/java-skel.m4: New.
+        * data/java.m4: New.
+        * data/lalr1.java: New.
+
+        * doc/bison.texinfo: Put "A Complete C++ Example" under
+        C++ Parsers.  Add Java Parsers.  Put C++ Parsers and Java Parsers
+        under Other Languages.
+
+        * src/getargs.c (valid_languages): Add Java.
+        * src/getargs.h (struct bison_language): Update size of string fields.
+
+        * tests/Makefile.am: Add java.at.
+        * tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
+        * tests/java.at: New.
+        * tests/testsuite.at: Include it.
+
+2007-01-28  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up.
+        * src/scan-skel.l (at_directive_perform): Add at_directive_argc and
+        at_directive_argv arguments so these no longer have to be global
+        variables.  Also, update the implementation for the following changes.
+        (fail_for_at_directive_too_many_args,
+        fail_for_at_directive_too_few_args): Add at_directive_name argument.
+        (at_directive_name): Remove as at_directive_argv[0] will be used for
+        this now.
+        (AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
+        for the directive name.
+        (at_directive_argc, at_directive_argv): Make these local within
+        skel_lex instead of global.
+        (INITIAL): Update directive start action for above changes.
+        (SC_AT_DIRECTIVE_ARG): Rename to...
+        (SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
+        (SC_AT_DIRECTIVE_SKIP_WS): Update.
+        (scan_skel): Move yylex_destroy to...
+        (skel_scanner_free): ... here.
+        * tests/skeletons.at (installed skeleton file name): Rename to...
+        (installed skeleton file names): ... this.
+
+2007-01-27  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * ChangeLog: For changes in doc/bison.texinfo, consistently reference
+        node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
+        Summary" not "Directives".
+        * doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
+        %code entry in "Decl Summary" rather than the one in "Table of Symbols"
+        since the former is now the more complete one.
+        (Prologue Alternatives): Likewise and do the same for %defines.
+        (Table of Symbols): Add summary of %code, add summary of %define, and
+        move full %code documentation to...
+        (Decl Summary): ... here for consistency with other entries in these
+        sections.
+        Move %define entry in order to keep this list alphabetized.
+        Reword %define entry a little to put less emphasis on the skeleton
+        concept, which most users shouldn't have to think about.
+
+2007-01-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Adjust to recent gnulib changes.
+        * lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
+        Add string.h, string_.h, unistd_.h, wchar_.h.
+        * m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
+        * src/system.h: Don't include <stpcpy.h>; this is now done by
+        <string.h>.
+
+2007-01-23  Paolo Bonzini  <bonzini@gnu.org>
+
+        Simplify implementation of unqualified %code, implement macros for
+        uniform treatment of boolean %define flags.  Document %define.
+        * data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
+        b4_percent_code_ifdef): New.
+        (b4_percent_code_get): Map unqualified %code to b4_percent_code().
+        * data/c++.m4: Define default value for global_tokens_and_yystype.
+        * data/glr.cc: Likewise.
+        * data/location.cc: Use b4_percent_define_flag_if.
+
+        * doc/bison.texinfo (Decl Summary): Document %define.
+
+        * src/parse-gram.y (Unqualified %code): Change muscle name to
+        b4_percent_code().
+        (content.opt): Default to empty.
+
+2007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Implement support for relative and absolute skeleton file names.
+        Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
+        * doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
+        (Bison Options): Document in --skeleton entry.
+        * src/output.c (output_skeleton): Use strncpy rather than strcpy since
+        full_skeleton can't necessarily hold all of pkgdatadir.
+        If the specified skeleton file name contains a `/', don't prepend
+        pkgdatadir.
+        * src/parse-gram.y (prologue_declaration): If the specified skeleton
+        file name contains a `/', prepend the grammar file directory.
+        * tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
+        * skeletons.at: New file.
+        (relative skeleton file names): New test case.
+        (installed skeleton file names): New test case.
+        * tests/testsuite.at: Include skeletons.at.
+
+        * bootstrap: Update copyright to 2007.
+
+2007-01-17  Paolo Bonzini  <bonzini@gnu.org>
+
+        * bootstrap: Remove occurrences of .#bootmp from the files.
+
+2007-01-17  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Calc++ Parser): Don't try to alias
+        nonterminals.
+        Use per-type %printer.
+
+2007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
+        data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
+        djgpp/config.site, src/files.c, src/files.h, src/main.c,
+        src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
+        src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
+        tests/glr-regression.at, tests/input.at, tests/local.at,
+        tests/output.at, tests/torture.at: Update copyright to 2007.
+
+2007-01-16  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
+        error code.
+        (Calc++ Scanner): Exit with failure if we can't open the input
+        file.
+        Accept "-" standing for stdin.
+        (Calc++ Top Level): Print the result only if the parsing was
+        successful.
+
+2007-01-16  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
+
+2007-01-15  Paolo Bonzini  <bonzini@gnu.org>
+        and Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up %define and %code implementation in M4 some.  Most
+        importantly, rename all related macros to be in the b4_percent_define
+        and b4_percent_code namespaces.  Also, complete support for `.' in
+        %define variable names and %code qualifiers.
+        * data/bison.m4 (b4_check_user_names): Check for special
+        "SKELETON-NAMESPACE(name)" macros instead of using two nested
+        m4_foreach loops.
+        (b4_get_percent_define, b4_get_percent_code): Rename to...
+        (b4_percent_define_get, b4_percent_code_get): ... these.
+        Extend documentation with examples.
+        For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
+        b4_percent_define_skeleton_variables and
+        b4_percent_code_skeleton_qualifiers.
+        Expect any value for the %define variable `foo' to be stored in the
+        macro named `b4_percent_define(foo)'; expect any %code blocks for the
+        qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
+        expect any unqualified %code blocks to be stored in a macro named
+        `b4_percent_code_unqualified'.
+        Use m4_indir so that %define variable names and %code qualifiers can
+        contain `.', which is allowed by the grammar parser.
+        (b4_percent_define_default): New macro to set a default value for a
+        %define variable.
+        (m4_wrap): Update wrapped code, and fix some underquoting.
+        (b4_check_user_names_wrap): Update and define outside the m4_wrap.
+        Expect grammar uses of %define variables and %code qualifiers to be
+        defined in b4_percent_define_user_variables and
+        b4_percent_code_user_qualifiers.
+        * data/c++.m4: Use b4_percent_define_default rather than
+        m4_define_default.  Fix some underquoting.  Skeleton usage of %define
+        variable define_location_comparison now implies skeleton usage of
+        %define variable filename_type.
+        * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
+        data/push.c, data/yacc.c: Update macro names.
+        * src/parse-gram.y (prologue_declaration, grammar_declaration): Update
+        muscle names.
+
+2007-01-14  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        DJGPP specific issues.
+
+        * djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
+        default.  Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
+
+2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
+        run parsers in all tests so that Valgrind is invoked during
+        maintainer-check-valgrind.
+        (Duplicate representation of merged trees): Free all semantic values.
+        (Duplicated user destructor for lookahead): Likewise.
+
+2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
+        command-line prefix.
+        * tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
+        ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
+        miss Valgrind messages.
+        (Exploding the Stack Size with Malloc): Likewise.
+
+2007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
+        locals.  Reported by Juan Manuel Guerrero at
+        <http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
+        * data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
+        Fix some indentation also.
+        * tests/torture.at (Exploding the Stack Size with Alloca): Add comment
+        explaining this issue.
+
+2007-01-09  Paolo Bonzini  <bonzini@gnu.org>
+        and Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Simplify union and prologue handling, and escape union and lex/parse
+        params with digraphs.
+        * data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
+        values to the empty string since these are no longer guaranteed
+        initialized by the front-end.
+        * data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
+        braces around b4_user_stype since this is no longer done by the
+        front-end.
+        * src/files.c, src/files.h (pre_prologue_obstack,
+        post_prologue_obstack): Remove.
+        * src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
+        comments here.  Use MUSCLE_OBSTACK_SGROW so that values are escaped
+        with digraphs.  This fixes lex params and parse params.
+        * src/muscle_tab.h (muscle_pair_list_grow): Update comments.
+        * src/output.c (prepare): Remove muscle insertion of the prologues.
+        (output): Remove freeing of pre_prologue_obstack and
+        post_prologue_obstack.
+        * src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
+        than prologue_augment for prologue parsing so you don't need prologue
+        obstacks.
+        (grammar_declaration): For %union RHS, use `braceless' instead of
+        "{...}" so that braces are already stripped and code is escaped with
+        digraphs.
+        * src/reader.c (prologue_augment): Remove.
+        (reader): Remove initialization of pre_prologue_obstack and
+        post_prologue_obstack.
+        * src/reader.h (prologue_augment): Remove.
+
+        * data/c.m4: Remove stray parenthesis.
+
+2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Remove quotes from variables names in %define directives and from
+        qualifiers in %code directives, and restrict the characters that are
+        allowed in them to M4-friendly ones.  For %define, continue to support
+        the quoted form as a deprecated feature.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
+        * NEWS (2.3a+): Add entry for the change to %define.  Update entry for
+        %code.
+        * doc/bison.texinfo (Prologue Alternatives): Update.
+        (Decl Summary): In %defines entry, update mention of `%code requires'
+        and `%code provides'.
+        (C++ Location Values): Update %define uses.
+        (Calc++ Parser Interface): Likewise.
+        (Calc++ Parser): Likewise, and update `%code requires' uses.
+        (Table of Symbols): Update %code documentation.
+        * src/parse-gram.y (prologue_declaration): For %define variables, use
+        `variable' instead of `STRING'.
+        (grammar_declaration): For %code qualifiers, use `ID' instead of
+        `STRING'.
+        (variable): New nonterminal that takes an `ID' or a `STRING'.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
+        and %define uses.
+        * tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
+        * tests/input.at (Reject unused %code qualifiers): Update %code uses.
+        (%define errors): Update %define uses.
+
+2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
+        instead of muscle_insert for %define values so that M4-special
+        characters are replaced with digraphs.
+        * tests/input.at (%define errors): Extend to check weird values.
+
+2007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Instead of having skeletons declare all valid %define variables and
+        %code qualifiers, provide macros that retrieve the associated values
+        and build these lists automatically.  Thus Bison will now warn when a
+        variable or qualifier is not used by the skeleton in the current
+        invocation regardless of whether it might sometimes be used by that
+        skeleton in other invocations.  Also, move all %define value macros to
+        the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
+        form, which is replaced by %code.
+        * data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
+        (b4_check_user_names): ... this, and change the series of valid name
+        arguments to a single list argument for names used in the skeleton
+        similar to the existing list argument for names used in the grammar.
+        Warn instead of complaining.
+        (b4_get_percent_define, b4_get_percent_code): New to retrieve %define
+        values and %code code, to format %code code properly, and to build
+        lists of all %define variables and %code qualifiers used in the
+        skeleton: b4_skeleton_percent_define_variables and
+        b4_skeleton_percent_code_qualifiers.
+        (b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
+        Remove, and...
+        (m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
+        the skeleton names lists can finish building first.  In place of
+        b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
+        expect the lists b4_user_percent_define_variables and
+        b4_user_percent_code_qualifiers.
+        * data/c++.m4: Where setting default values for b4_parser_class_name,
+        b4_location_type, b4_filename_type, b4_namespace, and
+        b4_define_location_comparison, update their names to the
+        b4_percent_define_ namespace.
+        * data/glr.c: Don't use b4_check_percent_define_variables and
+        b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
+        * data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
+        (b4_parser_class_name, b4_namespace): Define these using
+        b4_get_percent_define for parser_class_name and namespace.
+        * data/location.cc: Use b4_get_percent_define.
+        * data/push.c: Don't use b4_check_percent_define_variables and
+        b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
+        * data/yacc.c: Likewise, and don't call m4_exit in
+        b4_use_push_for_pull_if or m4_wrap code will never execute.
+        * src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
+        Rename to...
+        (muscle_grow_user_name_list): ... this for consistency with the
+        terminology used in bison.m4.
+        * src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
+        %define variable names, and rename muscle used_percent_define_variables
+        to user_percent_define_variables.
+        (grammar_declaration): Rename muscle used_percent_code_qualifiers to
+        user_percent_code_qualifiers.
+        (content): Remove.
+        (content.opt): Replace content RHS with STRING RHS so %define "NAME"
+        {CODE} form is no longer accepted.
+        * tests/input.at (Reject bad %code qualifiers): Rename to...
+        (Reject unused %code qualifiers): ... this, and update test output.
+        (%define error): Update test output.
+
+2007-01-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Check for unrecognized %define variables similar to checking for
+        unrecognized %code qualifiers.  Check for redefined %define variables.
+        * data/bison.m4 (b4_check_for_unrecognized_names): New macro that
+        generalizes...
+        (b4_check_percent_code_qualifiers): ... this, which now wraps it.
+        (b4_check_percent_define_variables): New, also wraps it.
+        * data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
+        variables using b4_check_percent_define_variables.
+        * data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
+        all those exercised in the test suite and all those listed in the
+        `Default values' section of c++.m4.  Are there others?
+        * data/push.c, data/yacc.c: Declare no valid %define variables.
+        * src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
+        similar to muscle_find, but it works even when the muscle stores a
+        const value.
+        (muscle_grow_used_name_list): New function for constructing the used
+        name list muscles that b4_check_for_unrecognized_names requires.
+        * src/parse-gram.y (prologue_declaration): Warn if a variable is
+        %define'd more than once.  Define the b4_used_percent_define_variables
+        muscle with muscle_grow_used_name_list.
+        (grammar_declaration): Abbreviate %code code with
+        muscle_grow_used_name_list.
+        * tests/input.at (%define errors): New.
+
+2007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Provide warn_at, complain_at, and fatal_at function callbacks to the
+        skeletons, and use this for %code qualifier complaints.
+        * data/bison.m4 (b4_error_at): New, invoked by...
+        (b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
+        the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
+        @fatal_at(...@) directives.
+        (b4_check_percent_code_qualifiers): Rewrite to expect locations for
+        qualifiers in b4_used_percent_code_qualifiers and to use
+        b4_complain_at.
+        * src/location.c, src/location.h (boundary_set_from_string): New global
+        function.
+        * src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
+        function.
+        * src/parse-gram.y (grammar_declaration): Add locations for qualifiers
+        to b4_used_percent_code_qualifiers.
+        * src/scan-skel.l (fail_for_at_directive_too_few_args): New static
+        function.
+        (AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
+        (lineno): Rename to...
+        (out_lineno): ... this so I don't misunderstand it again.
+        (SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
+        here; these newlines are in the input but not the output file.
+        (SC_AT_DIRECTIVE_ARG): Likewise.  Extract directive execution to...
+        (at_directive_perform): ... this new static function, and add handling
+        of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
+        directives.
+        * tests/input.at (Reject bad %code qualifiers): Update test output with
+        locations and extend.
+
+        * tests/output.at (Output file name: [, Output file name: ]): Remove
+        bogus comment about these tests failing.
+
+2007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up b4_check_percent_code_qualifiers a little.
+        * data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
+        in b4_used_percent_code_qualifiers to be double-M4-quoted.  Rewrite
+        documentation and add examples.
+        * src/parse-gram.y (grammar_declaration): Double-M4-quote those
+        qualifiers here.
+
+2007-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
+        unreliable -- especially when they're hidden inside another macro.
+        * data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
+        data/c.m4: Remove m4_divert(-1).
+        * data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
+        data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
+        m4_divert_push(0) and m4_divert_pop(0).
+        * src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
+        an m4_wrap([m4_divert_pop(0)]) to the M4.  Diversion -1, which is
+        pushed and popped by m4sugar, should be first on the stack.
+
+        Provide warn, complain, and fatal function callbacks to the skeletons.
+        This provides more flexibility than m4_fatal, improves the error
+        message format, and captures messages for translation.  Discussed
+        starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
+        * data/bison.m4 (b4_error): New, invoked by...
+        (b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
+        skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
+        directives.  Because these M4 macros might be called when the current
+        diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
+        the previous removal of uses of m4_divert, which caused trouble.
+        (b4_check_percent_code_qualifiers): Use b4_complain instead of
+        m4_fatal to report unrecognized %code qualifiers.
+        * data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
+        push parser requests.
+        * data/glr.c: Use b4_complain instead of m4_fatal to report
+        non-deterministic push parser requests.
+        Update @output usage to @output(...@) form.
+        * data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
+        report missing %defines.  Update @output usage to @output(...@) form.
+        * data/location.cc, data/push.c, data/yacc.c: Update @output usage to
+        @output(...@) form.
+        * src/main.c (main): Invoke skel_scanner_free.
+        * src/scan-skel.h (skel_scanner_free): Prototype new function.
+        * src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
+        obstack_for_string from flex-scanner.h.
+        (YY_DECL): Use to declare skel_lex static.
+        (decode_at_digraphs): Remove; now handled in the new
+        SC_AT_DIRECTIVE_ARG start condition.
+        (fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
+        functions.
+        (at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
+        at_directive_argv): New static globals.
+        (INITIAL): Use fail_for_invalid_at.
+        Don't parse `@output file_name\n' or `@basename(...@)'.  Instead,
+        recognize the start of a generalized `@directive(...@)' form and
+        start...
+        (SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
+        directive args (using the new obstack_for_string), to decode the
+        contained @ diagraphs, and to perform the directive.  It recognizes
+        @basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
+        @output(...@).
+        (SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
+        SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
+        `@,'.
+        (scan_skel): Initialize obstack_for_string on the first call.
+        (skel_scanner_free): New function to free obstack_for_string.
+        * tests/input.at (Reject bad %code qualifiers): Update test output.
+
+2007-01-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Consolidate the 4 prologue alternative directives (%code, %requires,
+        %provides, and %code-top) into a single %code directive with an
+        optional qualifier field.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
+        * NEWS (2.3a+): Rewrite the existing entry for the prologue
+        alternatives.
+        * doc/bison.texinfo (Prologue Alternatives): Update.
+        (Decl Summary): Update to %code "requires" and %code "provides".
+        (Calc++ Parser): Update to %code "requires".
+        (Table of Symbols): Remove entries for %requires, %provides, and
+        %code-top.  Rewrite %code entry, and add a %code "QUALIFIER" entry.
+        * data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
+        are replaced by b4_percent_code_provides and b4_percent_code_requires,
+        which are skeleton-specific.
+        (b4_check_percent_code_qualifiers): New.  A skeleton can use this to
+        declare what %code qualifiers it supports and to complain if any other
+        qualifiers were used in the grammar.
+        * data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
+        and b4_user_code([b4_percent_code_provides]) in place of
+        b4_user_requires and b4_user_provides.
+        * data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
+        Add b4_user_code([b4_percent_code_top]) and
+        b4_user_code([b4_percent_code]).
+        Invoke b4_check_percent_code_qualifiers.
+        * src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
+        PERCENT_REQUIRES): Remove.
+        (grammar_declaration): Remove RHS's for %code-top, %provides, and
+        %requires.  Rewrite the %code RHS as the unqualified form defining the
+        muscle b4_percent_code.  Add another RHS for the qualified %code form,
+        which defines muscles of the form b4_percent_code_QUALIFIER and the
+        b4_used_percent_code_qualifiers muscle.
+        * src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
+        PERCENT_REQUIRES): Remove.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
+        %code "requires" and %code "provides".
+        * tests/input.at (Reject bad %code qualifiers): New.
+
+2007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Use the new code_props interface for destructors and printers.
+        * src/symtab.h (symbol, semantic_type): Remove destructor_location and
+        printer_location members, and change the type of the destructor and
+        printer members to code_props.
+        (symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
+        symbol_printer_get, semantic_type_destructor_set,
+        semantic_type_printer_set, default_tagged_destructor_set,
+        default_tagless_destructor_set, default_tagged_printer_set,
+        default_tagless_printer_set): Use code_props in arguments and return
+        types in place of char const * and location.
+        (symbol_destructor_location_get, symbol_printer_location_get): Remove
+        since the locations are now contained in the return of
+        symbol_destructor_get and symbol_printer_get.
+        * src/output.c (symbol_destructors_output, symbol_printers_output):
+        Replace with...
+        (symbol_code_props_output): ... this to eliminate duplicate code.
+        (output_skeleton): Update to use symbol_code_props_output.
+        * src/reader.c (symbol_should_be_used): Update use of
+        symbol_destructor_get.
+        * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
+        Update uses of the various _destructor_set and _printer_set functions.
+        * src/symtab.c: (default_tagged_destructor_location,
+        default_tagless_destructor_location, default_tagged_printer_location,
+        default_tagless_printer_location): Remove since we...
+        (default_tagged_destructor, default_tagless_destructor,
+        default_tagged_printer, default_tagless_printer): ... change the type
+        of these to code_props.
+        (symbol_new, semantic_type_new, symbol_destructor_set,
+        semantic_type_destructor_set, symbol_destructor_get,
+        symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
+        symbol_check_alias_consistency, default_tagged_destructor_set,
+        default_tagless_destructor_set, default_tagged_printer_set,
+        default_tagless_printer_set): Update.
+        (symbol_destructor_location_get, symbol_printer_location_get): Remove.
+        (SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
+        code_props members.
+        (symbol_print): Use SYMBOL_CODE_PRINT.
+
+2007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Use the new code_props interface for rule actions.
+        * src/symlist.h (symbol_list): Replace action, action_location, and
+        used members with a code_props action_props member.
+        * src/reader.c (symbol_should_be_used, grammar_rule_check,
+        grammar_midrule_action, grammar_current_rule_merge_set,
+        grammar_current_rule_symbol_append, packgram): Update.
+        * src/scan-code.h (translate_rule_action): Remove, no longer used.
+        * src/scan-code.l (handle_action_dollar): Update.
+        (translate_rule_action): Remove, no longer used.
+        * src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
+
+2007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Use the new code_props interface in parse-gram.y.
+        * src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
+        Update all uses of translate_* functions to use the new code_props
+        interface and to use gram_scanner_last_string_free and
+        code_scanner_last_string_free where possible.
+        (grammar_declaration): symbol_list_destructor_set and
+        symbol_list_printer_set now perform the translation, so don't do it
+        here.  Use gram_scanner_last_string_free where possible.
+        * src/scan-code.h, src/scan-code.l (translate_symbol_action,
+        translate_code): Remove, no longer used.
+        * src/symlist.h, src/symlist.c (symbol_list_destructor_set,
+        symbol_list_printer_set): Perform code translation here rather than
+        depending on the caller to do so.
+
+        * src/symlist.h (struct symbol_list): Correct some documentation typos.
+        * src/scan-gram.h (gram_last_string): Remove declaration.
+        * src/scan-gram.l (last_string): Declare it static.
+
+2007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Encapsulate code properties and related functionality for the various
+        destructors, printers, and actions into a code_props structure and
+        interface.  This patch merely implements code_props in scan-code.h and
+        scan-code.l.  Future patches will rewrite other modules to use it.
+        Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
+        * src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
+        consistently initialize const structs that have an empty location
+        field.
+        * src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
+        to ensure consistency.
+        * src/scan-code.h (code_props): New structure.
+        (code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
+        function, macro, and const global variable for initializing a
+        code_props with no code.
+        (code_props_plain_init, code_props_symbol_action_init,
+        code_props_rule_action_init, code_props_translate_code): The rest of
+        the new code_props functional interface.  Among other things, the init
+        functions set the code_props kind field so that
+        code_props_translate_code will know whether to behave like
+        translate_symbol_action, translate_rule_action, or translate_code.
+        These old translate functions must remain until all other modules are
+        updated to use the new code_props interface.
+        (code_scanner_last_string_free): New function similar to
+        gram_scanner_last_string_free.
+        (code_scanner_free): Add documentation.
+        * src/scan-code.l: Implement the new interface.
+        (code_lex): Make it static, add a code_props* argument, and remove the
+        rule argument.
+        (last_string): New static global similar to the one in scan-gram.l.
+        (SC_RULE_ACTION): Update to use the code_props* argument to code_lex
+        instead of rule.
+        (SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
+        code_props since Bison may one day use this information for destructors
+        and printers.
+        (<*><<EOF>>): Use STRING_FINISH so that last_string is set.
+        (handle_action_dollar): Use symbol_list_n_get and set used flag
+        directly since symbol_list_n_used_set is removed.
+        (translate_action): Add a code_props* argument and remove the rule,
+        action, and location arguments.  Pass the code_props* on to code_lex.
+        (translate_rule_action, translate_symbol_action, translate_code):
+        Rewrite as wrappers around the new code_props interface.
+        * src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
+        it would eventually need to break the encapsulation of code_props.
+
+2007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * etc/.cvsignore: New.
+
+2007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Add maintainer-push-check to run maintainer-check using push parsing in
+        place of pull parsing where available.
+        * Makefile.am (maintainer-push-check): New.
+        * data/bison.m4 (b4_use_push_for_pull_if): New.
+        * data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
+        appropriately based on their existing values.
+        (yypush_parse): Don't print push-parser-specific diagnostics if push
+        parsing is being used in place of pull parsing.
+        * data/yacc.c: If push parsing should replace pull parsing, redirect to
+        push.c.
+        * src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
+        variable, and insert b4_use_push_for_pull_flag into muscles.
+        * tests/Makefile.am (maintainer-push-check): New.
+
+2006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
+        (whether successful or failed) so that yypush_parse can be invoked
+        again to start a new parse using the same yypstate.
+        * tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
+        check multiple yypull_parse invocations on the same yypstate.  For pull
+        mode, extend to check multiple yyparse invocations.
+        (Exploding the Stack Size with Alloca): Extend to try with
+        %push-pull-parser.
+        (Exploding the Stack Size with Malloc): Likewise.
+
+        * tests/calc.at (Simple LALR Calculator): Don't specify
+        %skeleton "push.c" since %push-pull-parser implies that now.
+        * tests/headers.at (export YYLTYPE): Don't check for the push
+        declarations.  Otherwise, this test case can't be used to see if push
+        mode can truly emulate pull mode.
+        * tests/input.at (Torturing the Scanner): Likewise.
+        * tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
+        (AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
+        AT_YACC_IF, which now includes the case of push mode since %skeleton
+        need not be used for push mode.  This will be more intuitive once
+        push.c is renamed to yacc.c.
+
+2006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For push mode, convert yyparse from a macro to a function, invoke yylex
+        instead of passing a yylexp argument to yypull_parse, and don't
+        generate yypull_parse or yyparse unless %push-pull-parser is declared.
+        Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
+        * data/bison.m4 (b4_pull_if): New.
+        * data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
+        * data/push.c: Improve M4 quoting a little.
+        (b4_generate_macro_args, b4_parenthesize): Remove.
+        (yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
+        any time a pull parser is requested.
+        Don't #define this as a wrapper around yypull_parse.  Instead, when
+        both push and pull are requested, make it a function that does that
+        same thing.
+        (yypull_parse): If there's a b4_prefix, #define this to
+        b4_prefix[pull_parse] when both push and pull are requested.
+        Don't define this as a function unless both push and pull are
+        requested.
+        Remove the yylexp argument and hard-code yylex invocation instead.
+        * etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
+        %push-parser.
+        * src/getargs.c (pull_parser): New global initialized to true.
+        * getargs.h (pull_parser): extern it.
+        * src/output.c (prepare): Insert pull_flag muscle.
+        * src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
+        (prologue_declaration): Set both push_parser and pull_parser = true for
+        %push-pull-parser.  Set push_parser = true and pull_parser = false for
+        %push-parser.
+        * src/scan-gram.l: Don't accept %push_parser as an alternative to
+        %push-parser since there's no backward-compatibility concern here.
+        Scan %push-pull-parser.
+        * tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
+        instead of %push-parser.
+        * tests/headers.at (export YYLTYPE): Make yylex static, and don't
+        prototype it in the module that calls yyparse.
+        * tests/input.at (Torturing the Scanner): Likewise.
+        * tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
+
+2006-12-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Update etc/bench.pl.  Optimize push mode a little (the yyn change
+        deserves most of the credit).
+        * Makefile.am (SUBDIRS): Add etc subdirectory.
+        * configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
+        * data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
+        yytoken, yyval, and yyloc declarations to...
+        (yyparse or yypush_parse): ... here to improve performance.  For
+        yypush_parse invocations after the first, be sure to assign yyn its old
+        value again.
+        (yypstate_new): Don't bother initializing the yyresult field since the
+        initial value isn't used.
+        (yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
+        remove the #define that, in push mode, set it to yyps->NAME.
+        * etc/Makefile.am: New.
+        * etc/bench.pl: Remove and build it instead from...
+        * etc/bench.pl.in: ... this new file.  Use @abs_top_builddir@ to invoke
+        "tests/bison" from the build directory by default rather than just
+        invoking "bison" from $PATH.
+        (calc_grammar): Update push parser code: don't declare yylval globally,
+        don't define yyparse_wrapper, and don't #define yyparse.
+        (bench_grammar): Update to check all working combinations of yacc.c,
+        push.c, impure, pure, pull, and push.
+
+2006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For push mode, add pull wrappers around yypush_parse.
+        * data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
+        (yypull_parse): New function wrapping yypush_parse.
+        (yyparse): New #define wrapping yypull_parse.
+        * tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
+        is declared.
+        * tests/headers.at (export YYLTYPE): Make yylex global.  For push mode,
+        prototype yylex in the module that calls yyparse, and don't prototype
+        yyparse there.  Otherwise, the yyparse expansion won't compile.
+        * tests/input.at (Torturing the Scanner): Likewise.
+
+2006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Enable push parsers to operate in impure mode.  Thus, %push-parser no
+        longer implies %pure-parser.  The point of this change is to move
+        towards being able to test the push parser code by running the entire
+        test suite as if %push-parser had been declared.
+        * data/push.c (yypush_parse): For impure mode, remove the
+        yypushed_char, yypushed_val, and yypushed_loc arguments.
+        Instead, declare these as local variables initialized to the global
+        yychar, yylval, and yylloc.
+        For the first yypush_parse invocation only, restore the initial values
+        of these global variables when it's time to read a token since they
+        have been overwritten.
+        * src/parse-gram.y (prologue_declaration): Don't set pure_parser for
+        %push-parser.
+        * tests/calc.at (Simple LALR(1) Calculator): Always declare
+        %pure-parser along with %push-parser since this test case was designed
+        for pure push parsers.
+        * tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
+        (AT_YACC_OR_PUSH_IF): New.
+        (AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
+        add a note that it's still wrong for some cases (as it has been for a
+        while).
+        (AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
+        %push-parser no longer implies %pure-parser.
+
+2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Remove some unnecessary differences between the pull parser code and
+        the push parser code.  This patch enables yynerrs in push mode.
+        * data/push.c: Reformat M4 a little.
+        (b4_yyerror_range): Remove and convert all uses to just yyerror_range.
+        (b4_declare_scanner_communication_variables): Don't omit yynerrs just
+        because push mode is on.  Instead, if pure mode is on, move yynerrs
+        to...
+        (b4_declare_parser_state_variables): ... here.
+        (yynerrs, yyerror_range): For push mode, #define each NAME in this list
+        to yyps->NAME so it can be used in yypush_parse.
+        (yypush_parse): Don't omit uses of yynerrs in push mode.
+
+2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix bug such that the first pushed token's value and location are
+        sometimes overwritten (sometimes by %initial-action) before being used.
+        * data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
+        yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
+        For the first yypush_parse invocation, initialize yychar to YYEMPTY to
+        more closely mimic the pull parser logic.
+        Don't copy the pushed token to yychar, yylval, and yylloc until it's
+        time to read a token, which is after any initialization of yylval and
+        yylloc.
+        (gottoken): Rename label to...
+        (yyread_pushed_token): ... for clarity and to avoid infringing on the
+        user namespace.
+
+2006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Rearrange initialization of the parser state variables so that the
+        skeleton doesn't have to have a copy for pull mode and another for push
+        mode.  This patch also fixes at least a bug such that yylloc was not
+        initialized (with b4_location_initial_line and
+        b4_location_initial_column) upon calling yypush_parse.  However, that
+        initialization now overwrites the first token's location;
+        %initial-action assigning @$ already did the same thing, and both bugs
+        will be fixed in a later patch.
+        * data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
+        (b4_declare_parser_state_variables): Remove initialization of yytoken,
+        yyss, yyvs, yyls, and yystacksize.
+        (yypstate_new): Remove initialization of some yypstate fields: yystate,
+        yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
+        yylsp.
+        (yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
+        yyps->NAME so it can be used in yypush_parse.
+        (yyparse or yypush_parse): For yypush_parse, don't print the
+        "Starting parse" diagnostic for invocations after the first.
+        Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
+        yypush_parse, only do it for the first invocation.
+        Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
+        initialization to occur in yypush_parse but only on the first
+        invocation.
+
+2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c: Add CPP guards around push parser declarations in both
+        the header and the code file.
+        In the code file, move the push parser declarations to the same place
+        they appear in the header file.
+        Clean up the M4 some, especially the inconsistent underquoting in
+        some b4_c_function_def and b4_c_function_decl uses.
+
+2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Encapsulate the push parser state variables into an M4 macro so the
+        push skeleton doesn't have to list them again for pull mode's yyparse.
+        For push mode, remove yypush_parse's local equivalents of these
+        variables to eliminate unnecessary copying between the two sets at
+        run-time.  This patch also fixes at least a bug related to multiple
+        %initial-action invocations in push mode.
+        * data/push.c (b4_declare_parser_variables): Rename to...
+        (b4_declare_scanner_communication_variables): ... this for clarity and
+        update both uses.
+        (b4_declare_yyparse_variables): Remove and move its contents to the one
+        spot where it was invoked.
+        (b4_declare_parser_state_variables): New macro containing the parser
+        state variables required by push mode.
+        (struct yypstate): Replace all fields but yynew with
+        b4_declare_parser_state_variables.
+        (yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
+        yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
+        each NAME in this list to yyps->NAME so it can be used in yypush_parse.
+        (yyparse or yypush_parse): For yyparse in pull mode, replace local
+        parser state variable declarations with
+        b4_declare_parser_state_variables.
+        Don't initialize parser state variables when calling yypush_parse since
+        yypstate_new already does that.
+        Invoke the user's initial action only upon the first yypush_parse
+        invocation.
+        Remove all code that copies between the local parser state variables
+        and the yypstate.
+
+2006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
+        prevent a name collision in a future patch where these names will
+        sometimes be #define'd.
+        (YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
+        since it no longer has the same name as the existing argument.
+        (yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
+
+2006-12-19  Paolo Bonzini  <bonzini@gnu.org>
+        and Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Decl Summary): In the %language entry, mention
+        that the argument is case-insensitive, and there's no `=' here.
+        For the %skeleton entry, mention that %language is better.
+        (Bison Options): Likewise for --language and --skeleton.  Move the
+        --skeleton entry so that the `Tuning the parser' section is sorted
+        alphabetically on long options.
+        (C++ Bison Interface): Don't use the word skeleton.  Don't explain the
+        %language directive in detail here; cross-reference the %language
+        documentation instead.
+        (Calc++ Parser): Use `%require "@value{VERSION}"' rather than
+        `%require "2.3b"' so that the example is always up-to-date.
+        (Table of Symbols): Add entries for %language and %skeleton.
+        * examples/extexi (normalize): Instead of replacing every %require
+        argument with the current Bison version, just substitute for
+        `@value{VERSION}'.  This guarantees that we're testing what actually
+        appears in the documentation.
+        * examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
+        rather than `@VERSION@'.
+
+2006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Reword the %language news a bit, and put it earlier.
+
+        * src/getargs.c (skeleton_arg): Last arg is now location const *.
+        Rewrite to simplify the logic.
+        (language_argmatch): Likewise.
+        (program_name): We now own this var.
+        * src/getargs.h (struct bison_language): Use char[] rather than
+        const char *.
+
+        * doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
+        Java is supported.
+        * src/complain.c (program_name): Remove decl; no longer needed.
+        * src/main.c (program_name): Remove; now belongs to getargs.
+
+2006-12-18  Paolo Bonzini  <bonzini@gnu.org>
+
+        * NEWS: Document %language.
+
+        * data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
+
+        * data/c-skel.m4, data/c++-skel.m4: New files.
+        * data/glr.c: Complain on push parsers.
+
+        * doc/bison.texinfo (C++ Parser Interface): Prefer %language
+        over %skeleton.
+        (Decl Summary): Document %language and %skeleton.
+        (Command line): Document -L.
+
+        * examples/extexi: Rewrite %require directive.
+        * examples/calc++/Makefile.am: Pass VERSION to extexi.
+
+        * src/files.c (compute_exts_from_gc): Look in language structure
+        for .y extension.
+        (compute_file_name_parts): Check whether .tab should be added.
+        * src/getargs.c (valid_languages, skeleton_prio, language_prio):
+        (language, skeleton_arg, language_argmatch): New.
+        (long_options): Add --language.
+        (getargs): Use skeleton_arg, add -L/--language.
+        * src/getargs.h: Include location.h.
+        (struct bison_language, language, skeleton_arg, language_argmatch): New.
+        * src/output.c (prepare): Pick default skeleton from struct language.
+        Don't dispatch C skeletons here.
+        * src/parse-gram.y (PERCENT_LANGUAGE): New.
+        (prologue_declaration): Add "%language" rule, use skeleton_arg.
+        * src/scan-gram.l ("%language"): New rule.
+
+        * tests/calc.at: Test %skeleton and %language.
+        * tests/local.at (AT_SKEL_CC_IF): Look for %language.
+        (AT_GLR_IF): Look for %skeleton "glr.cc".
+        (AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
+        (AT_YACC_IF): Reject %language.
+
+2006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
+        since it wasn't used; only the typedef name 'semantic_type' is needed.
+        Also, omit trailing white space.
+
+        * bootstrap: Sync from coreutils.
+        (gnulib_extra_files): Add build-aux/announce.gen.
+        (slurp): Adjust .gitignore files like .cvsignore files.
+        * build-aux/announce-gen: Remove from CVS, since bootstrap
+        now creates this.
+
+2006-12-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Make %push-parser imply %pure-parser.  This fixes several bugs; see
+        <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
+        * src/parse-gram.y (prologue_declaration): For %push-parser, also set
+        pure_parser = true.
+        * data/push.c: Don't bother testing b4_push_if when deciding whether
+        to expand b4_declare_parser_variables globally.
+        (yypush_parse): Likewise in here.
+
+        * data/push.c (yypush_parse): Add b4_parse_param to arguments.
+        (yy_reduce_print): Reformat M4 for readability.
+
+2006-12-15  Bob Rossi  <bob@brasko.net>
+        and Joel Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c (yypstate): Add typedef, and update all uses of
+        struct yypstate to just yypstate.
+        * tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
+
+2006-12-14  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yypush_parse): Declare prototype regardless of
+        %locations option.
+
+2006-12-14  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yyparse): Remove the prototype and the #define when in
+        push-parser mode.
+
+2006-12-13  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yypstate_init): Rename to...
+        (yypstate_new): ... this and use b4_c_function_def.
+        (yypstate_delete): New.
+        (yypush_parse): Change parameters yynval and yynlloc to be const.
+        * tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
+        yypstate_delete functions.
+
+2006-12-13  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
+        strange test case titles.  Reported by Bob Rossi.
+
+2006-12-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * TODO: Add pointer to Sylvain Schmitz's work on static detection
+        of potential ambiguities in GLR grammers.
+
+2006-12-12  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/testsuite.at (AT_CHECK): When checking if $1 starts with
+        `bison ', use m4_index instead of m4_substr since chopping up a string
+        containing M4-special characters causes problems here.
+
+        Fix a couple of bugs related to special characters in user-specified
+        file names, and make it easier for skeletons to compute output file
+        names with the same file name prefix as Bison-computed output file
+        names.
+        * data/glr.cc, data/push.c, data/yacc.c: In @output, use
+        b4_parser_file_name and b4_spec_defines_file instead of
+        @output_parser_name@ and @output_header_name@, which are now redundant.
+        * data/glr.c, data/lalr1.cc: Likewise.  Also, in header #include's, use
+        b4_parser_file_name, b4_spec_defines_file, and the new
+        @basename(FILENAME@) instead of @output_parser_name@ and
+        @output_header_name@, which inappropriately escaped the file names as
+        C string literals.
+        * src/files.c (all_but_ext): Remove static qualifier.
+        (compute_output_file_names): Move `free (all_but_ext)' to...
+        (output_file_names_free): ... here since all_but_ext is needed later.
+        * src/files.h (all_but_ext): Extern.
+        * src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
+        exactly what MUSCLE_INSERT_STRING used to do.
+        (MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
+        characters are escaped properly.
+        * src/output.c (prepare): Define muscle file_name_all_but_ext as
+        all_but_ext.
+        For pkgdatadir muscle, maintain previous functionality by using
+        MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING.  The problem
+        is that b4_pkgdatadir is used inside m4_include in the skeletons, so
+        digraphs would never be expanded.  Hopefully no one has M4-special
+        characters in his Bison installation path.
+        * src/scan-skel.l: Don't parse @output_header_name@ and
+        @output_parser_name@ anymore since they're now redundant.
+        In @output, use decode_at_digraphs.
+        Parse a new @basename command that invokes last_component.
+        (decode_at_digraphs): New.
+        (BASE_QPUTS): Remove unused.
+        * tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
+        (Output file name): New tests.
+
+2006-12-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Warn about output files that are generated by the skeletons and that
+        conflict with other output files.
+        * data/glr.c: Don't generate the header file here when glr.cc does.
+        * src/files.c (file_names, file_names_count): New static globals.
+        (compute_output_file_names): Invoke output_file_name_check for files
+        not generated by the skeletons and remove existing checks.
+        (output_file_name_check): New function that warns about conflicting
+        output file names.
+        (output_file_names_free): Free file_names.
+        * src/files.h (output_file_name_check): Declare.
+        * src/scan-skel.l: Invoke output_file_name_check for files generated by
+        the skeletons.
+        * tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
+        (Conflicting output files): New tests.
+
+2006-12-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+        * doc/bison.texinfo: Fix a couple of typos.
+
+2006-12-08  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
+        Rename to...
+        (yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
+        update all uses.
+        (b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
+        (yypush_parse): Rename yypvars argument to yyps and remove redundant
+        local pv.
+        (yypstate_init, yypush_parse): Declare in Bison-generated header file.
+        * tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
+
+2006-12-07  Bob Rossi  <bob@brasko.net>
+        and Joel Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c (yypvarsinit): Change return type from void* to struct
+        yypvars*. No longer cast to void* on return.
+        (struct yypvars): Remove yylen since it need not be remembered between
+        yypushparse invocations.
+        (yypushparse): Don't copy between yylen and pv->yylen.
+
+2006-12-05  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
+        (yypushparse): Add yynchar, yynlval, yynlloc parameters.
+        (b4_declare_parser_variables): Do not declare yynerrs for push mode.
+        (struct yypvars): Remove b4_declare_parser_variables.
+        (yypvarsinit): Remove init code for removed variables.
+        (global scope): Do not declare b4_declare_parser_variables if
+        push or pure mode.
+        (yypushparse): Add b4_declare_parser_variables.
+        Init new local variables, and remove init code for removed
+        yypvars variables.
+        (yyparse): Delete.
+        * tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
+        and yyparse for other modes.
+        (AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
+        * tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
+        (AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
+        (AT_PURE_LEX_IF): True if pure or push parser.
+
+2006-12-05  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Document Yacc prologue alternatives and default %destructor's and
+        %printer's as experimental.  Don't mention Java yet.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
+        * NEWS (2.3a+): Say they're experimental.  Remove any mention of Java.
+        (2.3a): Annotate this entry to say the old forms of these features were
+        also experimental.
+        * doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
+        Table of Symbols): Say they're experimental.  Comment out any mention
+        of Java (we'll want this back eventually).
+
+2006-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Support a file name argument to %defines.  Deprecate `=' in
+        %file-prefix, %name-prefix, and %output.  Discussed at
+        <http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
+        * NEWS (2.3a+): Mention.
+        * doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
+        form of %defines, and remove `=' from entries for %file-prefix,
+        %name-prefix, and %output.
+        * src/parse-gram.y (prologue_declaration): Implement.
+        * tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
+        LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
+        all but one occurrence of %name-prefix.
+        * tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
+        * tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
+        occurrence of each of %file-prefix and %output.  Add check for %defines
+        with argument.
+        * tests/reduce.at (Useless Terminals, Useless Nonterminals,
+        Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
+        Remove the `=' from %output.
+
+2006-11-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't escape $ in test case titles since Autoconf 2.61 now does that
+        correctly.
+        * tests/actions.at (Default %printer and %destructor are not for error
+        or $undefined): Here.
+        (Default %printer and %destructor are not for $accept): Here.
+        * tests/input.at (Invalid $n and @n): Here.
+
+2006-11-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Rename <!> to <>.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
+        * NEWS (2.3a+): Update.
+        * doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
+        Update.
+        * src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
+        * src/scan-gram.l (INITIAL): Implement.
+        * src/symlist.c (symbol_list_default_tagless_new): Update comment.
+        * src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
+        comment.
+        * tests/actions.at (Default tagless %printer and %destructor,
+        Default tagged and per-type %printer and %destructor,
+        Default %printer and %destructor are not for error or $undefined,
+        Default %printer and %destructor are not for $accept,
+        Default %printer and %destructor for mid-rule values): Update.
+        * tests/input.at (Default %printer and %destructor redeclared,
+        Unused values with default %destructor): Update.
+
+2006-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't let %prec take a nonterminal.
+        * src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
+        token.
+        * tests/input.at (%prec takes a token): New test checking that %prec
+        won't take a nonterminal.
+
+2006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
+        it was double-quoted.
+        * src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
+        grammar is maintained with Bison's highest standards.
+        * src/getargs.c: Fix some typos in Doxygen comments.
+
+2006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix memory leaks in scanners generated by at least Flex 2.5.9 and
+        later.  Reported by Paul Eggert in
+        <http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
+        * src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
+        * src/scan-code.l (translate_action): Don't bother invoking
+        yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
+        (code_scanner_free): Instead of invoking
+        yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
+        which frees more.
+        * src/scan-gram.l (gram_scanner_free): Likewise.
+        * src/scan-skel.l (scan_skel): Likewise.
+
+2006-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/files.c (tr): Change return type to void.
+        * src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
+        has been called previously for the same key.
+        (muscle_find): Return storage instead of value so that
+        --enable-gcc-warnings doesn't produce warnings that the return discards
+        const.  aver that the value and storage are the same since storage
+        could potentially be NULL when value is not.
+        * tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
+        same as 0.
+
+2006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
+        the earlier change today), m4/intl.m4, m4/intldir.m4.  This gives
+        us a slightly cleaner distribution, and also works.
+        * m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
+        gnulib changes.
+
+2006-11-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+        and Paul Eggert  <eggert@cs.ucla.edu>
+
+        Don't let Bison leak memory except when it complains.
+        * src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
+        (spec_defines_file, dir_prefix): Now char *, not const char *,
+        since they are freed.
+        * src/files.c: Likewise.
+        (all_but_ext, all_but_tab_ext, src_extension, header_extension):
+        Likewise.
+        (tr): Now operates in-place.  All uses changed.
+        (compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
+        values.
+        (compute_file_name_parts, compute_output_file_names): Don't store
+        read-only data in variables that will be freed.
+        (compute_output_file_names): Free all_but_ext, all_but_tab_ext,
+        src_extension, and header_extension.
+        (output_file_names_free): New public function to free
+        spec_verbose_file, spec_graph_file, spec_defines_file,
+        parser_file_name, and dir_prefix.
+        * src/getargs.c (getargs): Don't store read-only data in variables that
+        will be freed.
+        * src/main.c (main): Invoke output_file_names_free, code_scanner_free
+        (which previously existed but was unused), and quotearg_free.
+        * src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
+        * src/muscle_tab.c: Likewise.
+        (muscle_entry): Make the value char const *,
+        and add a new storage member that is char * and can be freed.
+        (muscle_entry_free): New private function.
+        (muscle_init): Use it instead of free.
+        (muscle_insert, muscle_grow): Update and use new storage member.
+        (muscle_code_grow): Free the string passed to muscle_grow
+        since it's not needed anymore.
+        * src/parse-gram.y (%union): Make `chars' member a `char const *', and
+        add a new `char *code' member.
+        ("{...}"): Declare semantic type as code.
+        * src/scan-code.h (translate_rule_action):
+        (translate_symbol_action, translate_code, translate_action): Return
+        `char const *' rather than `char *' since external code should not free
+        these strings.
+        * src/scan-code.l: Likewise.
+        * src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
+        which is "{...}" in the parser.
+        * tests/Makefile.am (maintainer-check-valgrind): Set
+        VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
+        Valgrind.
+        * tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
+        complain.
+        * tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
+        expecting a non-zero exit status sets --leak-check=summary and
+        --show-reachable=no for Valgrind.  Bison unabashedly leaks memory in
+        this case, and we don't want to hear about it.
+
+2006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (runtime-po/Makevars): Derive from po/Makevars
+        instead of from the template, to simplify configuration a bit.
+        * bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
+        and m4/wint_t.m4, as they are needed with the latest gnulib.
+
+2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Disable unset/unused mid-rule value warnings by default, and recognize
+        --warnings=midrule-values to enable them.  Discussed starting at
+        <http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
+        * NEWS (2.3a+): Mention.
+        * src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
+        warnings): Add entry for midrule-values subargument.
+        * src/reader.c (symbol_should_be_used): Don't return true just because
+        the value is a set/used mid-rule value unless
+        --warnings=midrule-values was specified.
+        * tests/input.at (Unused values, Unused values before symbol
+        declarations): Run tests with and without --warnings=midrule-values.
+
+        * src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
+        than LIST_FREE directly.
+
+2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Finish implementing --warnings=error, which should not be implied by
+        --warnings=all (or by its synonyms -W and --warnings without
+        subarguments).
+        * src/complain.c (set_warning_issued): New function to report that
+        warnings are being treated as errors and to record an error if so.
+        Invoke...
+        (warn_at, warn): ... here.
+        * src/getargs.c (warnings_args, warnings_types): Reorder so that
+        "error - warnings are errors" does not appear above "all - all of the
+        above".
+        (getargs): For -W and --warnings without subarguments, don't let
+        FLAGS_ARGMATCH set warnings_error in warnings_flag.
+        * src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
+
+2006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/getargs.c (flags_argmatch): Don't cause segmentation fault for
+        empty subargument list.  For example: `bison  --warnings=  parser.y'.
+
+2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/push.c, data/yacc.c: Make sure there's a newline at the end of
+        the parser header file so that gcc doesn't warn.
+
+2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Split the default %destructor/%printer into two kinds: <*> and <!>.
+        Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
+        * NEWS (2.3a+): Mention.
+        * doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
+        previous change today related to mid-rules.
+        (Table of Symbols): Remove %symbol-default and add <*> and <!>.
+        * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
+        (TYPE_TAG_ANY): Add as <*>.
+        (TYPE_TAG_NONE): Add as <!>.
+        (generic_symlist_item): Remove RHS for %symbol-default and add RHS's
+        for <*> and <!>.
+        * src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
+        (TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
+        * src/symlist.c (symbol_list_default_new): Split into tagged and
+        tagless versions.
+        (symbol_list_destructor_set, symbol_list_printer_set): Split
+        SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
+        SYMLIST_DEFAULT_TAGLESS.
+        * src/symlist.h: Update symbol_list_default*_new prototypes.
+        (symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
+        SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
+        * src/symtab.c (default_destructor, default_destructor_location,
+        default_printer, default_printer_location): Split each into tagged and
+        tagless versions.
+        (symbol_destructor_get, symbol_destructor_location_get,
+        symbol_printer_get, symbol_printer_location_get): Implement tagged
+        default and tagless default cases.
+        (default_destructor_set, default_printer_set): Split each into tagged
+        and tagless versions.
+        * src/symtab.h: Update prototypes.
+        * tests/actions.at (Default %printer and %destructor): Rename to...
+        (Default tagless %printer and %destructor): ... this, and extend.
+        (Per-type %printer and %destructor): Rename to...
+        (Default tagged and per-type %printer and %destructor): ... this, and
+        extend.
+        (Default %printer and %destructor for user-defined end token): Extend.
+        (Default %printer and %destructor are not for error or $undefined):
+        Update.
+        (Default %printer and %destructor are not for $accept): Update.
+        (Default %printer and %destructor for mid-rule values): Extend.
+        * tests/input.at (Default %printer and %destructor redeclared): Extend.
+        (Unused values with default %destructor): Extend.
+
+2006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't apply the default %destructor/%printer to an unreferenced midrule
+        value.  Mentioned at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
+        * src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
+        like $@n instead of just @n so that the default %destructor/%printer
+        logic doesn't see them as user-defined symbols.
+        (symbol_is_dummy): Check for both forms of the name.
+        * src/reader.c (packgram): Remove the `$' from each midrule symbol
+        name for which the midrule value is referenced in any action.
+        * tests/actions.at (Default %printer and %destructor for mid-rule
+        values): New test.
+        * tests/regression.at (Rule Line Numbers, Web2c Report): Update output
+        for change to dummy symbol names.
+
+2006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Warn about unset midrule $$ if the corresponding $n is used.
+        * src/reader.c (symbol_should_be_used): Check midrule parent rule for
+        $n usage.
+        (packgram): Before invoking grammar_rule_check on any rule, make sure
+        all actions have already been scanned in order to set `used' flags.
+        Otherwise, checking that a midrule's $$ is set will not always work
+        properly because the midrule check must forward-reference the midrule's
+        parent rule.
+        * tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
+        warning.
+
+2006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        More improvements to the documentation of the prologue alternatives:
+        * NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
+        Bison manual.
+        * doc/bison.texinfo (Prologue Alternatives): Correct some errors.  Add
+        some text to clarify the relative importance of the new directives and
+        to show how these directives may be viewed as code labels.
+
+2006-10-16  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Similar to the recently removed %before-header, add %code-top as the
+        alternative to the pre-prologue.  Mentioned at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
+        Also, let the prologue alternatives appear in the grammar section.
+        * src/parse-gram.y (PERCENT_CODE_TOP): New token.
+        (prologue_declaration): Move the existing prologue alternatives to...
+        (grammar_declaration): ... here and add %code-top.
+        * src/scan-gram.l (PERCENT_CODE_TOP): New token.
+
+        Clean up and extend documentation for the prologue alternatives.
+        * NEWS (2.3a+): Describe prologue alternatives.
+        * doc/bison.texinfo (Prologue): Move discussion of prologue
+        alternatives to...
+        (Prologue Alternatives): ... this new section, and extend it to discuss
+        all 4 directives in detail.
+        (Table of Symbols): Clean up discussion of prologue alternatives and
+        add %code-top.
+
+2006-10-16  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        DJGPP specific issues.
+
+        * djgpp/config.bat: config.hin has been moved to lib. Adjust
+        config.bat accordingly.
+        * djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
+        * djgpp/config.site: Likewise.
+
+2006-10-16  Paolo Bonzini  <bonzini@gnu.org>
+
+        Replace %*-header with %provides, %requires, %code.  See discussion at
+        http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
+
+        * data/bison.m4 (b4_user_requires, b4_user_provides): New.
+        (b4_user_start_header): Remove.
+        * data/glr.c: Use new macros instead of b4_*start_header
+        and b4_*end_header.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/push.c: Likewise.
+        * data/yacc.c: Likewise.
+
+        * doc/bison.texinfo: Remove %before-header, rename
+        %{start,end,after}-header to %requires, %provides, %code.
+
+        * src/parse-gram.y: Likewise (also rename token names accordingly).
+        * src/scan-gram.l: Likewise.
+        * tests/actions.at: Likewise.
+
+2006-10-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
+        Problem reported by Joel E. Denny.
+
+2006-10-14  Jim Meyering  <jim@meyering.net>
+
+        (Sync from coreutils.)
+        Work also when the working directory (with e.g. coreutils sources)
+        is version controlled with git, rather than CVS.
+        * bootstrap (CVS_only_file): Test for the existence of README-cvs,
+        rather than CVS.
+        In messages and comments, say e.g., "checked-out sources",
+        rather than "CVS sources".
+        (version_controlled_file): New function.  Work for git as well as
+        for CVS.  Don't use grep's -q option.
+        (slurp): Call it here, in place of CVS-specific code.
+
+2006-10-14  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix testsuite for ./configure --enable-gcc-warnings:
+        * configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
+        Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
+        __AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
+        * test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
+        * test/regression.at (Diagnostic that expects two alternatives):
+        Likewise.
+
+2006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap.conf (gnulib_modules): Add config-h.
+        * djgpp/subpipe.c: Include <config.h> unconditionally; don't
+        worry about HAVE_CONFIG_H.
+        * lib/abitset.c: Likewise.
+        * lib/bitset.c: Likewise.
+        * lib/bitset_stats.c: Likewise.
+        * lib/bitsetv-print.c: Likewise.
+        * lib/bitsetv.c: Likewise.
+        * lib/ebitset.c: Likewise.
+        * lib/get-errno.c: Likewise.
+        * lib/lbitset.c: Likewise.
+        * lib/subpipe.c: Likewise.
+        * lib/timevar.c: Likewise.
+        * lib/vbitset.c: Likewise.
+        * lib/bitset.c: Include "bitset.h" first, to test interface.
+        * lib/bitset_stats.c: Include "bitset_stats.h" first.
+        * lib/bitsetv-print.c: Include "bitsetv-print.h" first.
+        * lib/bitsetv.c: Include "bitsetv.h" first.
+        * lib/get-errno.c: Include "get-errno.h" first.
+        * m4/.cvsignore: Add config-h.m4.
+        * tests/actions.at (Default %printer and %destructor for ...):
+        Adjust expected line numbers in output to reflect removal of #if
+        HAVE_CONFIG_H lines.
+        * tests/glr-regression.at (Missed %merge type warnings when ...):
+        Likewise.
+        * tests/regression.at (Braced code in declaration in rules section):
+        Likewise.
+        * tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
+        * tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
+        Include <config.h> unconditionally.
+
+        * bootstrap: Sync from coreutils, as follows:
+
+        2006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
+        variable was sometimes used without being initialized.  This
+        messed up the installation of the INSTALL file in some cases.
+
+        2006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (usage, main program, symlink_to_gnulib): Add option
+        --copy.  Inspired by a suggestion from Bruno Haible.
+
+        2006-10-03  Jim Meyering  <jim@meyering.net>
+
+        * bootstrap: Undo last change to this file, since now gnulib-tool
+        sticks with the automake default in generating dependencies.
+
+2006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * configure.ac: Use AC_PROG_CC_STDC; this is more modern than
+        the old AC_PROG_CC / AM_PROG_CC_STDC combination.
+
+        * doc/bison.1: Add copyright notice.
+
+        * data/glr.c: Don't include <stdarg.h>; not used.
+
+        * NEWS: The -g and --graph options now output graphs in Graphviz
+        DOT format, not VCG format.
+        * doc/bison.1: Likewise.
+        * doc/bison.texinfo (Understanding, Bison Options): Likewise.
+        * THANKS: Add Satya Kiran Popuri, who proposed the initial version
+        of this change in
+        <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
+        * TODO: Remove Graphviz entry.
+        * src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
+        remove vcg.c, vcg.h, vcg_defaults.h.
+        * src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
+        * src/graphviz.c, src/graphviz.h: New files.
+        * src/files.c (compute_output_file_names): Output .dot, not .vcg.
+        * src/files.h: Make comment more generic.
+        * src/main.c (main): Likewise.
+        * src/print_graph.h: Likewise.
+        * src/getargs.c (usage): Make usage description more generic.
+        * src/print_graph.c: Include graphviz.h rather than vcg.h.
+        (static_graph, fgraph): Remove.  All uses changed to pass
+        arguments instead of sharing a static var.
+        (print_core, print_actions, print_state, print_graph):
+        Output graphviz format rather than VCG format.
+        * tests/.cvsignore: Remove *.vcg; add *.dot.
+        * tests/output.at: Expect *.dot files, not *.vcg files.
+
+        * data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
+        accommodates the 2006-10-08 change.
+
+2006-10-11  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
+        (b4_yyssa, b4_yyerror_range): New macros.
+        (struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
+        (yypvarsinit): Remove init of removed fields.
+        (yypushparse): Remove use of removed fields; use new macros instead.
+
+2006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/push.c (yypushparse): Fix memory leak if yymsg is malloced
+        in a push parser.  Reindent slightly to match yacc.c better.
+
+2006-10-11  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
+        yymsg_alloc fields.
+        (yypvarsinit, yypushparse): Remove init of removed fields.
+        (yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
+
+2006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * THANKS: Add Paolo Bonzini and Bob Rossi.
+
+2006-10-08  Paolo Bonzini  <bonzini@gnu.org>
+
+        * data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
+        b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
+        b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
+        b4_define_user_cde and uses): Remove.
+        (b4_comment, b4_prefix, b4_sync_start): New.
+        * data/bison.m4: New file, with most of the content removed from c.m4.
+        * src/muscle_tab.h: Use "do {...} while(0)" throughout.
+        * src/output.c (output_skeleton): Pass bison.m4.
+        (prepare): Pass glr_flag and nondeterministic_flag.  Pass prefix
+        only if specified.
+
+2006-10-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix test failure reported by Tom Lane in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
+        and try to make such failures easier to catch in the future.
+        * data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
+        that's now the caller's responsibility.
+        (yyprocessOneStack, yyrecoverSyntaxError, yyparse):
+        Set yychar = YYEOF if it's negative.
+        * tests/actions.at (yylex): Abort if asked to read past EOF.
+        * tests/conflicts.at (yylex): Likewise.
+        * tests/cxx-type.at (yylex): Likewise.
+        * tests/glr-regression.at (yylex): Likewise.
+        * tests/input.at (yylex): Likewise.
+        * tests/regression.at (yylex): Likewise.
+        * tests/torture.at (yylex): Likewise.
+
+2006-10-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix problems with translating English-language diagnostics.
+        * bootstrap: Fix bug introduced in recent bootstrap changes, with
+        respect to bison-runtime pot generation.  The YY_ stuff
+        wasn't being captured.
+        * bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
+        * po/POTFILES.in: Add src/location.c, src/scan-code.l.
+        * runtime-po/POTFILES.in: Add data/push.c.
+
+2006-09-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Merge bootstrap changes from coreutils.
+
+        2006-09-28  Jim Meyering  <jim@meyering.net>
+
+        Automatically generated dependencies are important even
+        when all of the sources in a directory come from gnulib.
+        * bootstrap (gnulib_tool): Remove the "no-dependencies" automake
+        option that gnulib-tool adds to what becomes our lib/gnulib.mk.
+
+        2006-09-23  Jim Meyering  <jim@meyering.net>
+
+        * bootstrap (gnulib_tool_options): Add "--local-dir gl".
+
+        2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap: Add support for --force.
+        (usage): New function.  Describe usage less tersely.
+        (CVS_only_file): New var.
+
+2006-09-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/push.c (YYPUSH_MORE): Make it an enum instead.
+        (yypushparse): Use YYPUSH_MORE instead of the mystery constant.
+        Adjust white space and comments to match GNU style better.
+
+2006-09-20  Bob Rossi  <bob@brasko.net>
+
+        * data/push.c (yyresult_get): Remove function.
+        (YYPUSH_MORE): Add #define.
+        (yypushparse): Modify return value.
+
+2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * stamp-h.in: Remove; no longer needed.
+        * .cvsignore: Replace autom4te.cache and config.cache with *.cache.
+        Remove config.h, config.hin, intl (no longer created).
+        * lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
+        stamp-h1.
+
+        Sync bootstrap from coreutils, as follows:
+
+        2006-09-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (symlink_to_gnulib): New function.
+        (cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
+        to copies-of-gnulib.
+        (cp_mark_as_generated, slurp, gnulib_files):
+        Avoid making a copy if it's the same as the old version.
+        (gnulib_files): Add support for this variable (used by Bison).
+
+2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/getargs.c (usage): Rework to use conventions similar to
+        coreutils, to make translation a bit easier and the code a bit
+        smaller.  Problem reported by Tim Van Holder.
+
+2006-09-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Use some of gnulib's new modules, taken from coreutils.
+
+        * bootstrap: Sync from coreutils, except add support for gnulib_files.
+        * bootstrap.conf: New file.
+        (gnulib_modules): Add configmake, inttypes, unistd.
+        (XGETTEXT_OPTIONS): Add complain, complain_at,
+        fatal, fatal_at, warn, warn_at, unexpected_end.
+        * configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
+        (gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
+        (gl_EARLY): Add.
+        (AM_STDBOOL_H): Remove; gl_INIT now dows this.
+        (gl_INIT): Add
+        (GNULIB_AUTOCONF_SNIPPET): Remove.
+        (AM_GNU_GETTEXT): Add; require formatstring macros since that's
+        the pickiest.
+        * lib/.cvsignore: Add inttypes_.h.
+        * lib/Makefile.am: Include gnulib.mk first so we can append to it.
+        (AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
+        (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
+        no-longer-necessary initializations.
+        (lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
+        * lib/subpipe.c: Include <unistd.h> unconditionally, now that we
+        use the unistd module.
+        * src/system.h: Likewise.
+        * m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
+        ulonglong.m4.  Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
+        gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
+        * src/Makefile.am (DEFS): Remove, since configmake does this for us.
+        (AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
+        * src/system.h: Include inttypes.h unconditionally, now that we
+        use the inttypes module.  Don't bother to include stdint.h, since
+        inttypes.h now does that for us.
+        (LOCALEDIR): Remove, now that we use the configmake module.
+        * src/getargs.c: Include configmake.h.
+        * src/main.c: Likewise.
+        * src/output.c: Likewise.
+        * tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
+        not from $abs_top_builddir, since config.h moved.
+
+
+        Port to GCC 2.95.  First two problems reported by Michael Deutschmann in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
+
+        * src/parse-gram.y (symbol_declaration): Don't put statements
+        before declarations; it's not portable to C89.
+        * src/scan-code.l (handle_action_at): Likewise.
+
+        * src/scan-code.l: Always initialize braces_level; the old code
+        left it uninitialized and therefore had undefined behavior.
+
+        Don't attempt to redefine 'assert', since it runs afoul of
+        systems where standard headers (mistakenly) include <assert.h>.
+        Instead, define and use our own alternative, called 'aver'.
+        * src/reader.c: Don't include assert.h, since we no longer
+        use assert.
+        * src/scan-code.l: Likewise.
+        * src/system.h (assert): Remove, replacing with....
+        (aver): New function, taking a bool arg.  All uses changed.
+        * src/tables.c (pack_vector): Ensure that aver arg is bool,
+        not merely an integer.
+
+2006-09-15  Bob Rossi  <bob@brasko.net>
+
+        * data/Makefile.am (dist_pkgdata_DATA): Add push.c.
+        * data/c.m4 (YYPUSH): New.
+        (b4_push_if): New macro.  Use it instead of #ifdef YYPUSH.
+        * src/getargs.c (push_parser): New var.
+        * src/getargs.h (push_parser): New declaration.
+        * src/output.c (prepare): Add macro insertion of `push_flag'.
+        * src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
+        (prologue_declaration): Parse %push-parser.
+        * src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
+        * tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
+        list of removed lines from the traces observed.
+        (AT_CHECK_CALC_LALR): Added push parser tests.
+
+2006-09-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.3a.
+        * configure.ac (AC_INIT): Likewise.
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
+        "#define YYSTYPE int" that caused "make maintainer-check" to fail
+        due to header ordering dependencies.  I don't know why the #define
+        was there.
+
+        Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
+        runtime cost when YYDEBUG is not defined, and so that some tests
+        that used to fail now work.  Problem and initial suggestion by
+        Paolo Bonzini.
+        * data/c++.m4 (b4_parse_param_cons): Omit leading ','.
+        * data/glr.cc (b4_parser_class_name):
+        Initialize yycdebug_ only if YYDEBUG.  Also, initialize yydebug_.
+        (debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
+        (yydebug_) [YYDEBUG]: New member.
+        (yycdebug_): Now defined only if YYDEBUG.
+        * data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
+        (YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
+        (b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
+        if YYYDEBUG.
+        (debug_stream, set_debug_stream, debug_level, set_debug_level):
+        Define only if YYDEBUG.
+        * tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
+        set_debug_level.
+        * tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
+        * tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
+        AT_CHECK_CALC_GLR_CC that are working now.
+
+2006-09-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
+        We don't need them in glr.cc, and glr.c defines them.
+        Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
+        assumes that defining it to anything is the same as defining
+        it to 1.  Problem reported by Paolo Bonzini.
+
+2006-09-12  Paolo Bonzini  <bonzini@gnu.org>  (tiny change)
+
+        * data/c.m4 (b4_null, b4_case): Define.
+        * src/output.c (prepare_symbols): Use b4_null.
+        (user_actions_output): Use b4_case.
+
+2006-09-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (b4_shared_declarations): Put start-header first,
+        before any #includes that we generate, so that feature-test
+        macros work.  Problem reported by Michael Deutschmann in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
+        * data/lalr1.cc: Likewise.
+        * doc/bison.texinfo (Prologue): Document that feature-test macros
+        should be defined before any Bison declarations.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
+        that depend on location.hh after, not before, Bison decls, since
+        we now include location.hh after the first user prologue.
+
+        * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
+        Sander Brandenburg in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
+        Also, fix minor white space and comment issues.
+        (Prologue): Mention that it's better to define feature-test macros
+        before Bison declarations.  Problem reported by Michael Deutschmann.
+
+        * README-cvs: Fix typo: "&" should be "&&".  Problem reported
+        by Jim Meyering.
+        * m4/.cvsignore: Add argmatch.m4.  Remove obstack.m4, strerror_r.m4.
+        This adjusts to recent gnulib changes.
+
+2006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Finish implementation of per-type %destructor/%printer.  Discussed
+        starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
+        and
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
+        * NEWS (2.3+): Add a description of this feature to the default
+        %destructor/%printer description.
+        * doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
+        * src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
+        Invoke semantic_type_destructor_set or semantic_type_printer_set when a
+        list node contains a semantic type.
+        * src/symtab.c, src/symtab.h: Extend with a table that associates
+        semantic types with their %destructor's and %printer's.
+        (semantic_type_from_uniqstr, semantic_type_get,
+        semantic_type_destructor_set, semantic_type_printer_set): New functions
+        composing the public interface of that table.
+        (symbol_destructor_get, symbol_destructor_location_get,
+        symbol_printer_get, symbol_printer_location_get):  If there's no
+        per-symbol %destructor/%printer, look up the per-type before trying
+        the default.
+        * tests/actions.at (Per-type %printer and %destructor): New test case.
+        * tests/input.at (Default %printer and %destructor redeclared):
+        Extend to check that multiple occurrences of %symbol-default in a
+        single %destructor/%printer declaration is an error.
+        (Per-type %printer and %destructor redeclared, Unused values with
+        per-type %destructor): New test cases.
+
+2006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Require default %destructor/%printer to be declared using
+        %symbol-default instead of an empty symbol list, and start working on
+        new per-type %destructor/%printer.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
+        * NEWS (2.3+): Add %symbol-default to example.
+        * bison.texinfo (Freeing Discarded Symbols): Likewise.
+        (Table of Symbols): Add entry for %symbol-default.
+        * src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
+        (generic_symlist, generic_symlist_item): New nonterminals for creating
+        a list in which each item is a symbol, semantic type, or
+        %symbol-default.
+        (grammar_declaration): Use generic_symlist in %destructor and %printer
+        declarations instead of symbols.1 or an empty list.
+        (symbol_declaration, precedence_declaration, symbols.1): Update actions
+        for changes to symbol_list.
+        * src/reader.c: Update for changes to symbol_list.
+        * src/scan-code.l: Likewise.
+        * src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
+        * src/symlist.c, src/symlist.h: Extend such that a list node may
+        represent a semantic type or a %symbol-default in addition to just an
+        ordinary symbol.  Add switched functions for setting %destructor's and
+        %printer's.
+        * tests/actions.at, tests/input.at: Add %symbol-default to all default
+        %destructor/%printer declarations.
+
+2006-08-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Whether the default %destructor/%printer applies to a particular symbol
+        isn't a question of whether the user *declares* that symbol (in %token,
+        for example).  It's a question of whether the user by any means
+        *defines* the symbol at all (by simply using a char token, for
+        example).  $end is defined by Bison whereas any other token with token
+        number 0 is defined by the user.  The error token is always defined by
+        Bison regardless of whether the user declares it with %token, but we
+        may one day let the user define error as a nonterminal instead.
+        * NEWS (2.3+): Say "user-defined" instead of "user-declared".
+        * doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
+        the meaning of "user-defined".
+        * tests/actions.at (Default %printer and %destructor for user-declared
+        end token): Rename to...
+        (Default %printer and %destructor for user-defined end token): ...
+        this.
+
+        * src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
+        computation of whether to apply the default, don't maintain a list of
+        every Bison-defined symbol.  Instead, just check for a first character
+        of '$', which a user symbol cannot have, and check for the error token.
+
+2006-08-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't apply the default %destructor or %printer to the error token,
+        $undefined, or $accept.  This change fits the general rule that the
+        default %destructor and %printer are only for user-declared symbols,
+        and it solves several difficulties that are described in the new test
+        cases listed below.
+        * src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
+        * tests/actions.at (Default %printer and %destructor are not for error
+        or $undefined, Default %printer and %destructor are not for $accept):
+        New test cases.
+
+2006-08-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Allow %start after the first rule.
+        * src/reader.c (grammar_current_rule_begin): Don't set the start symbol
+        when parsing the first rule.
+        (check_and_convert_grammar): Search for it here after all grammar
+        declarations have been parsed.  Skip midrules, which have dummy LHS
+        nonterminals.
+        * src/symtab.c (symbol_is_dummy): New function.
+        * src/symtab.h (symbol_is_dummy): Declare it.
+        * tests/input.at (%start after first rule): New test.
+
+2006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Redo some of the previous commit: add back the ability to use
+        non-aliased/undeclared string literals since it might be useful to
+        those declaring %token-table.
+        * src/reader.c (check_and_convert_grammar): Undo changes in previous
+        commit: don't worry about complaints from symbols_pack.
+        * src/symtab.c (symbol_new, symbol_class_set,
+        symbol_check_alias_consistency): Undo changes in previous commit: count
+        each string literal as a new symbol and token, assign it a symbol
+        number, and don't complain about non-aliased string literals.
+        (symbols_pack): Since symbol_make_alias still does not decrement symbol
+        and token counts but does still set aliased tokens to the same number,
+        symbol_pack_processor now leaves empty slots in the symbols array.
+        Remove those slots.
+        * tests/regression.at (Undeclared string literal): Remove test case
+        added in previous commit since non-aliased string literals are allowed
+        again.
+        (Characters Escapes, Web2c Actions): Undo changes in previous commit:
+        remove unnecessary string literal declarations.
+        * tests/sets.at (Firsts): Likewise.
+
+2006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't allow an undeclared string literal, but allow a string literal to
+        be used before its declaration.
+        * src/reader.c (check_and_convert_grammar): Don't invoke packgram if
+        symbols_pack complained.
+        * src/symtab.c (symbol_new): Don't count a string literal as a new
+        symbol.
+        (symbol_class_set): Don't count a string literal as a new token, and
+        don't assign it a symbol number since symbol_make_alias does that.
+        (symbol_make_alias): It's not necessary to decrement the symbol and
+        token counts anymore.  Don't assume that an alias declaration occurs
+        before any uses of the identifier or string, and thus don't assert that
+        one of them has the highest symbol number so far.
+        (symbol_check_alias_consistency): Complain if there's a string literal
+        that wasn't declared as an alias.
+        (symbols_pack): Bail if symbol_check_alias_consistency failed since
+        symbol_pack asserts that every token has been assigned a symbol number
+        although undeclared string literals have not.
+        * tests/regression.at (String alias declared after use, Undeclared
+        string literal): New test cases.
+        (Characters Escapes, Web2c Actions): Declare string literals as
+        aliases.
+        * tests/sets.at (Firsts): Likewise.
+
+2006-08-14  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In the grammar scanner, STRING_FINISH unclosed constructs and return
+        them to the parser in order to improve error messages.
+        * src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
+        SC_BRACED_CODE, SC_PROLOGUE): Implement.
+        * tests/input.at (Unclosed constructs): New test case.
+        * tests/regression.at (Invalid inputs): Update now that unclosed %{ is
+        seen.
+
+        * src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
+        unused global.
+
+2006-08-13  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Handle string aliases for character tokens correctly.
+        * src/symtab.c (symbol_user_token_number_set): If the token has an
+        alias, check and set its alias's user token number instead of its own,
+        which is set to indicate the alias.  Previously, every occurrence of
+        the character token in the grammar overwrote that alias indicator with
+        the character code.
+        * tests/input.at (String aliases for character tokens): New test.
+
+2006-08-12  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
+
+2006-08-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
+        to prevent failures when building on older platforms.
+        Check for autopoint failure.
+        Set XGETTEXT_OPTIONS to values that check for C format strings,
+        so that translators are warned about them (this also helps
+        prevent core dumps).
+
+        * lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
+        function, since it simplifies our code a bit.
+
+        * configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
+        rather than -W, so we don't get bogus warnings about sign comparisons.
+        Add -Wpointer-arith, since that warning is useful (it reports code
+        that does not conform to C89 and that some compilers reject).
+        * data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
+        since it's no longer needed.
+
+2006-08-10  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up scanners a bit.
+        * src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
+        definitions so gcc won't warn when obstack_for_string is unused.
+        * src/scan-code.l: config.h and system.h are already #include'd by
+        scan-code-c.c, so get rid of them here.
+        * src/scan-gram.l: Likewise.
+        * src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
+        definitions rather than duplicating the rest of it.
+        * src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
+
+2006-08-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Suppress signed/unsigned comparison warnings for yycheck.
+        * data/c.m4 (b4_safest_int_type): New macro.
+        * data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
+        a signed int type, cast it to b4_safest_int_type first.
+        * data/yacc.c: Likewise.
+        (b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
+        also overwritten.
+
+2006-08-09  Ralf Wildenhues <Ralf.Wildenhues@gmx.de>  (tiny change)
+
+        * doc/bison.texinfo: Fix some typos.
+
+2006-08-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
+        po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
+
+        * bootstrap (gnulib_tool): Stop using --assume-autoconf;
+        the latest gnulib does this a different way.
+        (get_translations): Sharuzzaman Ahmat Raslan reported that the ms
+        translation was patched, so stop omitting it.
+
+2006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Enable declaration of default %printer/%destructor.  Make the parser
+        use these for all user-declared grammar symbols for which the user does
+        not declare a specific %printer/%destructor.  Thus, the parser uses it
+        for token 0 if the user declares it but not if Bison generates it as
+        $end.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
+        and
+        <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
+        * NEWS (2.3+): Mention.
+        * doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
+        declare a %destructor for a mid-rule's semantic value.  It's just
+        impossible to declare one specific to it.
+        (Freeing Discarded Symbols): Mention that @$ can be used in %destructor
+        code.  Describe default %destructor form.
+        * src/parse-gram.y (grammar_declaration): Parse default
+        %printer/%destructor declarations.
+        * src/output.c (symbol_destructors_output): Use symbol_destructor_get
+        and symbol_destructor_location_get rather than accessing the destructor
+        and destructor_location members of struct symbol.
+        (symbol_printers_output): Likewise but for %printer's.
+        * src/reader.c (symbol_should_be_used): Likewise but for %destructor's
+        again.
+        * src/symtab.c (default_destructor, default_destructor_location,
+        default_printer, default_printer_location): New static global
+        variables to record the default %destructor and %printer.
+        (symbol_destructor_get, symbol_destructor_location_get,
+        symbol_printer_get, symbol_printer_location_get): New functions to
+        compute the appropriate %destructor and %printer for a symbol.
+        (default_destructor_set, default_printer_set): New functions to set the
+        default %destructor and %printer.
+        * src/symtab.h: Prototype all those new functions.
+        * tests/actions.at (Default %printer and %destructor): New test to
+        check that the right %printer and %destructor are called, that they're
+        not called for $end, and that $$ and @$ work correctly.
+        (Default %printer and %destructor for user-declared end token): New
+        test to check that the default %printer and %destructor are called for
+        a user-declared end token.
+        * tests/input.at (Default %printer and %destructor redeclared, Unused
+        values with default %destructor): New tests to check related grammar
+        warnings and errors.
+
+2006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up handling of %destructor for the end token (token 0).
+        Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
+        and
+        <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
+
+        Make the skeletons consistent in how they pop the end token and invoke
+        its %destructor.
+        * data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
+        state, which has token number 0, since this would invoke the
+        %destructor for the end token.
+        * data/lalr1.cc (yy::parser::parse): Don't check for the final state
+        until after shifting the end token, or else it won't be popped.
+        * data/yacc.c (yyparse): Likewise.
+
+        * data/glr.c (yyparse): Clear the lookahead after shifting it even when
+        it's the end token.  Upon termination, destroy an unshifted lookahead
+        even when it's the end token.
+        * data/lalr1.cc (yy::parser::parse): Likewise.
+        * data/yacc.c (yyparse): Likewise.
+
+        * src/reader.c (packgram): Don't check rule 0.  This suppresses unused
+        value warnings for the end token when the user gives the end token a
+        %destructor.
+
+        * tests/actions.at (Printers and Destructors): Test all the above.
+
+2006-07-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Update to latest gnulib and gettext versions.
+        * bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
+        Add fopen-safer.
+        (gnulib_files): Add m4/warning.m4.  Don't worry about files
+        overwritten by autopoint.
+        Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
+        Suppress "id", "ms", "tr" translations for now, since gettext 0.15
+        rejects them.
+        Don't use autoreconf; instead, invoke autopoint etc. by hand,
+        so that we can remove the intl files at a better time.
+        (intl_files_to_remove): Remove aclocal.m4, since it gets
+        rebuilt anyway.  Remove m4/inttypes_h.m4, m4/inttypes.m4,
+        m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
+        m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
+        Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
+        Remove datarootdir hack; no longer needed.
+        * configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
+        (AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
+        * lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
+        strdup.h.
+        * m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
+        * m4/warning.m4: Remove from CVS, since we now use gnulib's version.
+
+2006-07-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap: Adjust to today's change to gnulib-tool by invoking
+        it with --assume-autoconf='latest-stable'.
+
+2006-07-13  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
+        least 1.4.7 and 1.4.4) by putting a #line between `typedef union
+        YYSTYPE' and `{'.
+        * src/muscle_tab.h (muscle_grow): Replace the header comments with
+        those from muscle_tab.c since the old ones are misleading.
+
+2006-07-13  Akim Demaille  <akim@epita.fr>
+
+        Support %define "KEY" {VALUE}.
+        * src/scan-code.h, src/scan-code.l (translate_action)
+        (translate_rule_action, translate_symbol_action, translate_code):
+        Return char *, not const char *.
+        * src/parse-gram.y (declaration): Rename as...
+        (prologue_declaration): this.
+        (string_content): Remove this nonterminal, use STRING.
+        (braceless, content, content.opt): New nonterminal.
+        Use them.
+        (%define): Now accept content.opt, i.e., accept also BRACED_CODE
+        as value.
+        * src/scan-gram.l (getargs.h): Don't include it.
+
+2006-07-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
+        rather than a for-loop that declares a local bool variable.  This
+        should work around a compatibility problem with a Cray x1e C++
+        compiler reported by Hung Nguyen in
+        <http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
+        The for-loop was introduced in the 2004-11-17 change but I don't
+        know why it was needed.
+
+2006-07-12  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4: Comment changes.
+
+2006-07-10  Akim Demaille  <akim@lrde.epita.fr>
+
+        * src/complain.c (error_message, ERROR_MESSAGE): New.
+        To factor...
+        (fatal_at, fatal, warn_at, warn, complain_at, complain): these.
+        * src/complain.h, src/complain.c (warning_issued): Remove, unused.
+
+2006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Instead of %union, you can define and use your own union type
+        YYSTYPE if your grammar contains at least one <type> tag.
+        Your YYSTYPE need not be a macro; it can be a typedef.
+        * doc/bison.texinfo (Value Type, Multiple Types, Location Type):
+        (Union Decl, Decl Summary): Document this.
+        * data/glr.c (YYSTYPE): Implement this.
+        * data/glr.cc (YYSTYPE): Likewise.
+        * data/lalr1.cc (YYSTYPE): Likewise.
+        * data/yacc.c (YYSTYPE): Likewise.
+        * src/output.c (prepare): Output tag_seen_flag.
+        * src/parse-gram.y (declaration, grammar_declaration):
+        Use 'union_seen' rather than 'typed' to determine whether
+        %union has been seen, since grammars can now be typed without
+        %union.
+        (symbol_declaration, type.opt, symbol_def):
+        Keep track of whether a tag has been seen.
+        * src/reader.c (union_seen, tag_seen): New vars.
+        (typed): remove.
+        * src/reader.h (union_seen, tag_seen, typed): Likewise.
+        * src/scan-code.l (untyped_var_seen): New variable.
+        (handle_action_dollar): Adjust to above changes.
+        (handle_action_dollar, handle_action_at):
+        Improve overflow checking for outlandish numbers.
+        * tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
+        avoid new diagnostics generated by above changes.
+        * tests/regression.at (YYSTYPE typedef): Add test to check
+        for type tags without %union.
+
+        * src/symlist.c (symbol_list_length): Return int, not unsigned
+        int, since callers expect int.  This may need to get revisited
+        once we have proper integer overflow checking.
+
+        * src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
+        object is now static.
+
+        * src/getargs.c (flags_argmatch): Return void, not int,
+        to pacify ./configure --enable-gcc-warnings.
+
+        * src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
+        since last_string is already defined to FLEX_PREFIX (last_string).
+
+2006-07-09  Akim Demaille  <akim@lrde.epita.fr>
+
+        Implement --warnings/-W.
+        * src/getargs.c (report_argmatch, trace_argmatch): Remove,
+        replaced by...
+        (flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
+        Adjust callers.
+        * src/getargs.h, src/getargs.c (warnings, warnings_flags)
+        (warnings_args, warnings_types): New.
+        (getargs, short_options, long_options): Accept -W/--warnings.
+        Sort the options by alphabetical order, upper case letter right
+        before its lower case.
+
+2006-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Change %merge result type clash warnings to errors.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
+        * src/reader.c (record_merge_function_type): Use complain_at.
+        * tests/glr-regression.at (Missed %merge type warnings when LHS type is
+        declared later): Update test case results.
+
+2006-07-09  Akim Demaille  <akim@lrde.epita.fr>
+
+        * src/getargs.h, src/getargs.c: Swap --report and --trace handling
+        to be in alphabetical order.
+        (trace_args): Spelling fixes.
+
+2006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
+        so they don't collide with user-defined macros.
+        (yy_stack_print): Don't assume that yytype_int16 promotes to int;
+        this was never guaranteed, and now that we're using gnulib stdint,
+        which defines int_fast16_t to long int, the problem is exposed.
+
+2006-07-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_basename): Simplify a bit, since we don't
+        need the full POSIX semantics (and weren't implementing them
+        anyway).
+
+        Adjust to Autoconf 2.60 and today's gnulib.
+        * bootstrap (gnulib_modules): Add stdint.
+        Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
+        no longer copies it.
+        (intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
+        since stdint needs the former and wcwidth (which is now required
+        by mbswidth) needs the latter.
+        Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
+        work around a compatibility glitch between gettext 0.14.6 and
+        Autoconf 2.60.
+        * configure.ac (AC_PREREQ): Require Autoconf 2.60.
+        Do not check for uintptr_t, since new stdint module does the right
+        thing.
+        * lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
+        Add stdint.h, stdint_.h, wcwidth.h.
+        * m4/.cvsignore: Remove alloca.m4, onceonly.m4.
+        Add absolute-header.m4, double-slash-root.m4, longlong.m4,
+        stdint.m4, wchar_t.m4, wcwidth.m4.
+        * src/files.c: Include <dirname.h> and <stdio-safer.h> in the
+        usual order for ../lib/*.h files.
+        (file_name_split): Use last_component, not base_name, to adjust
+        to gnulib changes.
+        * src/parse-gram.h: Include <strverscmp.h> in the usual order
+        for ../lib/*.h files.
+        (YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
+        Define unconditionally, since we now assume the stdint module.
+        * src/scan-skel.l: Include <dirname.h>.
+        (BASE_QPUTS): Use last_component, not base_name.
+        * src/system.h: Include <unlocked-io.h> in the usual order
+        for ../lib/*.h files.  Include <stdint.h> unconditionally,
+        since we now use the stdint module.
+        (uintptr_t): Declare if UINTPTR_MAX is not defined, not
+        HAVE_UINTPTR_T, since we now use the stdint module.
+        (base_name): Remove decl, since files now include <dirname.h>
+        to get the decl.
+
+2006-07-08  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/c.m4 (b4_location_initial_column, b4_location_initial_line):
+        New, default to 1.
+        * data/yacc.c, data/glr.c, data/location.cc: Use them.
+        * NEWS, doc/bison.texinfo: The initial column and line are 1 by
+        default.
+        * tests/calc.at: Adjust.
+
+2006-07-08  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/c.m4 (b4_basename): New.
+        (b4_syncline): Also output the location of its invocation (from
+        the skeleton).
+        (b4_user_action, b4_define_user_action, b4_user_actions)
+        (b4_user_initial_action, b4_user_post_prologue, b4_user_start_header)
+        (b4_user_stype): New.
+        * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
+
+2006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In the grammar file, the first column is 1 not 0 on the first line as
+        on every other line.
+        * src/parse-gram.y (%initial-action): Initialize @$ correctly.
+        * tests/input.at (Torturing the Scanner): Update output.
+
+        * src/scan-gram.l (scanner_cursor): Declare it static.
+
+2006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        In warnings, say "previous declaration" rather than "first
+        declaration".
+        * src/symtab.c (redeclaration): Do that here.
+        * src/reader.c (record_merge_function_type): In the case of a result
+        type clash, report the previous declaration rather than the very first
+        one in the grammar file.
+        * tests/glr-regression.at (Missed %merge type warnings when LHS type is
+        declared later): Add a third declaration to check this behavior.
+        * tests/input.at (Incompatible Aliases): Update output.
+
+2006-06-27  Akim Demaille  <akim@epita.fr>
+
+        * doc/Doxyfile.in: New.
+        * doc/Makefile.am: Use it.
+        * src/lalr.h, src/symtab.h: Initial doxygenation.
+
+2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't miss %merge result type warnings just because the LHS types are
+        declared after the %merge.  This continues the effort of the previous
+        patch.
+        * src/reader.c (get_merge_function): Don't set the merger type yet.
+        (record_merge_function_type): New function for setting the merger type
+        and checking for clashes.
+        (grammar_current_rule_merge_set): Set the location of the %merge for
+        the current rule.
+        (packgram): Invoke record_merge_function_type for each rule now that
+        all symbol type declarations have been parsed.
+        * src/reader.h (merger_list.type_declaration_location): New member
+        storing the location of the first %merge from which the type for this
+        merging function was derived.
+        * src/symlist.h (symbol_list.merger_declaration_location): New member
+        storing the location of a rule's %merge, if any.
+        * tests/glr-regression.at (Missed %merge type warnings when LHS type is
+        declared later): New test to catch the error fixed by the above patch.
+
+2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Get action warnings (grammar_rule_check) right even when symbol
+        declarations appear after the rules.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
+        and
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
+        Don't mistake the type of $$ in a midrule to be that of its parent
+        rule's $$.
+        * src/reader.c (grammar_current_rule_end): Don't invoke
+        grammar_rule_check yet since not all symbol declarations may have been
+        parsed yet.
+        (grammar_midrule_action): Likewise.
+        Don't record whether the midrule's $$ has been used yet since actions
+        haven't been translated yet.
+        Record the midrule's parent rule and its RHS index within the parent
+        rule.
+        (grammar_current_rule_action_append): Don't translate the action yet
+        since not all symbol declarations may have been parsed yet and, thus,
+        warnings about types for $$, $n, @$, and @n can't be reported yet.
+        (packgram): Translate the action and invoke grammar_rule_check now that
+        all symbol declarations have been parsed.
+        * src/scan-code.l (handle_action_dollar): Now that this is invoked
+        after parsing the entire grammar file, the symbol list here in the case
+        of a midrule is actually the midrule's empty RHS, so reference its
+        parent rule's RHS where necessary.
+        On the other hand, now that you can already know it's a midrule, you
+        aren't forced to think $$ has the same type as its parent rule's $$.
+        (handle_action_at): In the case of a midrule, reference the parent rule
+        where necessary.
+        * src/symlist.c (symbol_list_new): Initialize new midrule-related
+        members.
+        (symbol_list_length): Now that this is invoked after all rules have
+        been parsed, a NULL symbol (rather than a NULL symbol list node)
+        terminates a rule.  symbol_list_print already does this correctly.
+        * src/symlist.h (symbol_list.midrule_parent_rule,
+        symbol_list.midrule_parent_rhs_index): New members so that midrules can
+        remember their relationships with their parents.
+        * tests/input.at (Type Clashes): Extend to catch the midrule $$ error
+        fixed by the above patch.
+        (_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
+        implementing...
+        (Unused values): ... this old test case and...
+        (Unused values before symbol declarations): ... this new test case.
+        This one is the same as `Unused values' except that all symbol
+        declarations appear after the rules in order to catch the rest of the
+        errors fixed by the above patch.
+
+2006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        More cleanup.
+        * src/reader.c (current_rule): Declare it static since it's no longer
+        used outside this file.
+        (grammar_current_rule_action_append): Remove redundant arguments from
+        translate_rule_action invocation.
+        * src/reader.h (current_rule): Remove this unused extern.
+        * src/scan-code.h (translate_rule_action): Remove redundant arguments.
+        * src/scan-code.l (translate_rule_action): Likewise.
+
+2006-06-25  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Clean up yesterday's patch.
+        * parse-gram.y (rhs): Move grammar_midrule_action invocation from here
+        to...
+        * src/reader.c (grammar_current_rule_action_append): ... here for
+        consistency with grammar_current_rule_symbol_append.
+        * tests/regression.at (Braced code in declaration in rules section):
+        Make yyerror and yylex static as usual.
+
+2006-06-24  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Fix bug that mistakes braced code in a declaration in the rules section
+        to be a rule action.  Mentioned at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
+        * src/scan-gram.l: Move midrule action detection from the start of the
+        scanning of any braced code to...
+        * src/parse-gram.y (rhs): ... the parsing of braced code as a rule
+        action.  For readability, use $2 and @2 rather than the equivalent
+        global variables.
+        * tests/regression.at (Braced code in declaration in rules section):
+        New test to catch the error fixed by the above patch.
+
+        Work on code readability some.
+        * src/scan-code.l (current_rule): Get rid of this misleading and
+        redundant declaration: it's actually extern'ed in reader.h.
+        (YY_DECL, code_lex, handle_action_dollar, handle_action_at,
+        translate_action): Add a rule argument and use it instead of the global
+        current_rule.
+        (translate_rule_action): This already receives current_rule through an
+        argument, so pass it on to translate_action instead of assigning
+        current_rule to current_rule.
+        (translate_symbol_action, translate_code): Pass rule = NULL to
+        translate_action.
+
+2006-06-23  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Rename %before-definitions to %start-header and %after-definitions to
+        %end-header.  Don't use these declarations to separate pre-prologue
+        blocks from post-prologue blocks.  Add new order-independent
+        declarations %before-header and %after-header as alternatives to the
+        traditional Yacc pre-prologue and post-prologue blocks.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
+        * NEWS (2.3+): Update for these changes.
+        * data/glr.c (b4_before_definitions): Update to...
+        (b4_start_header): ... this.
+        (b4_after_definitions): Update to...
+        (b4_end_header): ... this.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/yacc.c: Likewise.
+        * doc/bison.texinfo (The prologue): Update names, and replace remaining
+        prologue blocks with %*-header declarations.
+        (Calc++ Parser): Likewise.
+        (Decl Summary): Update names.
+        (Table of Symbols): Update description.
+        * src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
+        (PERCENT_END_HEADER): ... this.
+        (PERCENT_BEFORE_DEFINITIONS): Update to...
+        (PERCENT_START_HEADER): ... this.
+        (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
+        (declaration): Update token names and m4 macro names.
+        When parsing %end-header and %start-header, invoke translate_code
+        before muscle_code_grow, and no longer set global booleans to remember
+        whether these declarations have been seen.
+        Parse new %after-header and %before-header.
+        * src/reader.c (before_definitions, after_definitions): Remove.
+        (prologue_augment): Accept a new bool argument to specify whether to
+        augment the pre-prologue or post-prologue.
+        * src/reader.h (before_definitions, after_definitions): Remove these
+        extern's.
+        (prologue_augment): Add new bool argument.
+        * src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
+        (PERCENT_END_HEADER): ... this.
+        (PERCENT_BEFORE_DEFINITIONS): Update to...
+        (PERCENT_START_HEADER): ... this.
+        (PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
+        * tests/actions.at (Printers and Destructors): Update names.
+
+2006-06-22  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Add comparison operators for C++ location classes.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
+        * data/c++.m4 (b4_define_location_comparison): New boolean %define
+        declaration indicating whether filename_type has an operator==.  If
+        filename_type is `std::string', it defaults to `1', `0' otherwise.
+        * data/location.cc: Iff b4_define_location_comparison is `1', add
+        operator== and operator!= for class position and for class location.
+
+        Some minor fixes.
+        * src/scan-action.l: Remove unused file.
+        * src/symtab.c (symbol_printer_set): Use printer_location not
+        destructor_location.
+        * src/symtab.h (struct symbol): Replace incorrect source comment for
+        printer members.
+        * tests/input.at (Incompatible Aliases): Update output with correct
+        printer location.
+
+2006-06-20  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't put the pre-prologue in the header file.  For the yacc.c code
+        file and the glr.c header and code files, move the pre-prologue before
+        the token definitions.  Add new %before-definitions and
+        %after-definitions to declare code that will go in both the header file
+        and code file.  Discussed at
+        <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
+        <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
+        and
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
+        * NEWS (2.3+): Describe these changes.
+        * data/glr.c (b4_pre_prologue): Move from within to before...
+        (b4_shared_declarations): ... this.
+        Add new b4_before_definitions before b4_token_enums.
+        Add new b4_after_definitions at the end.
+        * data/glr.cc (b4_pre_prologue): Replace with...
+        (b4_before_definitions): ... this in the header file.
+        (b4_after_definitions): New near the end of the header file.
+        * data/lalr1.cc (b4_pre_prologue): Move from the header file to the
+        code file right before including the header file.
+        (b4_before_definitions): New in the previous position of
+        b4_pre_prologue in the header file.
+        (b4_after_definitions): New near the end of the header file.
+        * data/yacc.c: Clean up some m4 quoting especially in the header file.
+        (b4_token_enums_defines): In the code file, move to right before
+        YYSTYPE for consistency with the header file.
+        (b4_before_definitions): New right before b4_token_enums_defines in
+        both the header and code file.
+        (b4_after_definitions): New right after YYLTYPE and yylloc in both the
+        header and code file.
+        * doc/bison.texinfo (Prologue): Show use of %before-definitions instead
+        of prologues for %union dependencies.
+        (Decl Summary): In %defines description, mention the effect of
+        %before-definitions and %after-definitions on the header file.
+        (Calc++ Parser): Forward declare driver in a %before-definitions rather
+        than in the pre-prologue so that make check succeeds.
+        (Table of Symbols): Add entries for %before-definitions and
+        %after-definitions.
+        * src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
+        %before-definitions.
+        (PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
+        (declaration): Parse those declarations and append to
+        b4_before_definitions and b4_after_definitions, respectively.
+        * src/reader.c (before_definitions, after_definitions): New bools to
+        track whether those declarations have been seen.
+        (prologue_augment): Add to the post-prologue if %union,
+        %before-definitions, or %after-definitions has been seen.
+        * src/reader.h (before_definitions, after_definitions): New extern's.
+        * src/scan-gram.l: Scan the new declarations.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
+        prologue block in a %before-definitions or a %after-definitions based
+        on whether the %union is declared.
+        * tests/regression.at (Early token definitions with --yacc, Early token
+        definitions without --yacc): Move tests for token definitions into the
+        post-prologue since token names are no longer defined in the
+        pre-prologue.
+
+2006-06-20  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
+        (symbol_get): Use it.
+        * src/parse-gram.y: Use it.
+
+2006-06-19  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/scan-gram.l: Remove unused declaration of last_string_1 so the
+        build succeeds when configured with --enable-gcc-warnings.
+
+2006-06-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/parse-gram.y (char_name): New function.
+        (CHAR, STRING, string_content): For %printer, properly escape.
+        (ID): Prefer fputs to fprintf.
+        (id): Reindent to be consistent with other rules.
+        Properly quote char.
+
+        The Translation Project changed its way of publishing translations
+        to maintainers.  I haven't received any responses to my request
+        for supporting the old way, or for documenting the new way.  I
+        have modified 'bootstrap' to use screen scraping
+        (in this case, HTML scraping).  This is unreliable and inelegant,
+        but I don't see any better way.  Yuck.
+        * bootstrap (TP_URL, WGET_COMMAND): New vars.
+        (get_translations): New function, which uses HTML scraping to
+        deduce locations of latest translations.
+        Use this function to grab both bison and bison-runtime .po files.
+        Don't bother priming the pump for the runtime-po domain any more,
+        as it's now translated better than bison is.
+
+2006-06-19  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l: No longer "parse" things after `%union' until
+        `{'.  Rather, return a single "%union" token.
+        No longer make symbols: return strings, and leave the conversion
+        to symbols to the parser.
+        (SC_PRE_CODE, token_type): Remove.
+        * src/parse-gram.y (%union): New field `character'.
+        Sort tokens.
+        (CHAR): New token.
+        (ID, ID_COLON): Now that the scanner no longer makes them
+        identifiers, adjust all uses to invoke symbol_get.
+        (id_colon): New, wraps the conversion from string to symbol.
+        (%union): Accept a possible union_name.
+        (symbol): Now can be a char.
+        * data/c.m4 (b4_union_name): Leave a default value.
+        * data/glr.c, data/yacc.c: Use it.
+
+2006-06-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For associating token numbers with token names for "yacc.c", don't use
+        #define statements unless `--yacc' is specified; always use enum
+        yytokentype.  Most important discussions start at:
+        <http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
+        <http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
+        and
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
+        * NEWS (2.3+): Mention.
+        * data/c.m4 (b4_yacc_if): New.
+        (b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
+        token #define's.
+        * doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
+        on token name definitions.
+        * src/getargs.c (usage): Capitalize `Yacc' in English.
+        * src/output.c (prepare): Define b4_yacc_flag.
+        * tests/regression.at (Early token definitions): Test that tokens names
+        are defined before the pre-prologue not just before the post-prologue.
+        Remove this test case and copy to...
+        (Early token definitions with --yacc): ... this to test #define's.
+        (Early token definitions without --yacc): ... and this to test enums.
+
+2006-06-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Reword the post-2.3 change to not be so optimistic about
+        removing the old "look-ahead" spelling.
+        Update previous look-ahead/lookahead change reports.
+        * REFERENCES: look-ahead -> lookahead (since that's
+        what he actually wrote).
+        * doc/refcard.tex: look ahead -> lookahead,
+        look-ahead -> lookahead
+
+2006-06-09  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        For consistency, use `lookahead' instead of `look-ahead' or
+        `look_ahead'.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
+        and then at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
+        * NEWS: For the next release, note the change to `--report'.
+        * TODO, doc/bison.1: Update English.
+        * doc/bison.texinfo: Update English.
+        (Understanding Your Parser, Bison Options): Document as
+        `--report=lookahead' rather than `--report=look-ahead'.
+        * src/conflicts.c: Update English in comments.
+        (lookahead_set): Rename from look_ahead_set.
+        (flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
+        (resolve_sr_conflict): Rename local look_ahead_tokens to
+        lookahead_tokens, and update other uses.
+        (flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
+        count_rr_conflicts, conflicts_free): Update uses.
+        * src/getargs.c (report_args): Move "lookahead" before alternate
+        spellings.
+        (report_types): Update uses.
+        (usage): For `--report' usage description, state `lookahead' spelling
+        rather than `look-ahead'.
+        * src/getargs.h (report.report_lookahead_tokens): Rename from
+        report_look_ahead_tokens.
+        * src/lalr.c: Update English in comments.
+        (compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
+        (state_lookahead_tokens_count): Rename from
+        state_look_ahead_tokens_count.
+        Rename local n_look_ahead_tokens to n_lookahead_tokens.
+        (lookahead_tokens_print): Rename from look_ahead_tokens_print.
+        Rename local n_look_ahead_tokens to n_lookahead_tokens.
+        Update other uses.
+        Update English in output.
+        (add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
+        * src/print.c: Update English in comments.
+        (lookahead_set): Rename from look_ahead_set.
+        (print_reduction): Rename argument lookahead_token from
+        look_ahead_token.
+        (print_core, state_default_rule, print_reductions, print_results):
+        Update uses.
+        * src/print_graph.c: Update English in comments.
+        (print_core): Update uses.
+        * src/state.c: Update English in comments.
+        (reductions_new): Update uses.
+        (state_rule_lookahead_tokens_print): Rename from
+        state_rule_look_ahead_tokens_print, and update other uses.
+        * src/state.h: Update English in comments.
+        (reductions.lookahead_tokens): Rename from look_ahead_tokens.
+        (state_rule_lookahead_tokens_print): Rename from
+        state_rule_look_ahead_tokens_print.
+        * src/tables.c: Update English in comments.
+        (conflict_row, action_row): Update uses.
+        * tests/glr-regression.at
+        (Incorrect lookahead during deterministic GLR,
+        Incorrect lookahead during nondeterministic GLR): Rename
+        print_look_ahead to print_lookahead.
+        * tests/torture.at: Update English in comments.
+        (AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
+        AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
+        (Many lookahead tokens): Update uses.
+        * data/glr.c: Update English in comments.
+        * lalr1.cc: Likewise.
+        * yacc.c: Likewise.
+        * src/conflicts.h: Likewise.
+        * src/lalr.h: Likewise.
+        * src/main.c: Likewise.
+        * src/output.c: Likewise.
+        * src/parse-gram.c: Likewise.
+        * src/tables.h: Likewise.
+        * tests/calc.at: Likewise.
+
+2006-06-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/flex-scanner.h (yytext): Remove stray `*/' in #define.
+
+2006-06-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * TODO: Add request from Nelson H. F. Beebe to be able to install
+        Bison without installing the yacc script.
+
+2006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
+        and yytext if they're already #define'd.
+        * src/flex-scanner.h, src/location.h: Move #include "system.h" to...
+        * src/scan-code-c.c: ... here.
+        * src/scan-code.l, src/scan-gram.l: ... and here.  Also #include
+        <config.h>.
+
+2006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Get Bison to build again when configured with --enable-gcc-warnings.
+        * src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
+        missing #include's.
+        * src/scan-code.l (handle_action_dollar, handle_action_at): Rename
+        loc argument as it shadows a global.
+        * src/scan-gram.l: Remove stray comma that prevents boundary_set
+        invocation.
+
+        * src/.cvsignore: Add scan-code.c.
+
+2006-06-07  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l: Move the "add a trailing ; to actions" code
+        to...
+        * src/scan-code.l: here.
+        * tests/input.at (Torturing the Scanner): Fix another location
+        error.
+
+2006-06-07  Akim Demaille  <akim@epita.fr>
+
+        * src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
+
+2006-06-06  Akim Demaille  <akim@epita.fr>
+
+        Extract the parsing of user actions from the grammar scanner.
+        As a consequence, the relation between the grammar scanner and
+        parser is much simpler.  We can also split "composite tokens" back
+        into simple tokens.
+        * src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
+        * src/scan-gram.l (add_column_width, adjust_location): Move to and
+        rename as...
+        * src/location.h, src/location.c (add_column_width)
+        (location_compute): these.
+        Fix the column count: the initial column is 0.
+        (location_print): Be robust to ending column being 0.
+        * src/location.h (boundary_set): New.
+        * src/main.c: Adjust to scanner_free being renamed as
+        gram_scanner_free.
+        * src/output.c: Include scan-code.h.
+        * src/parse-gram.y: Include scan-gram.h and scan-code.h.
+        Use boundary_set.
+        (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
+        (PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
+        which is now, again, a separate token.
+        Adjust all dependencies.
+        Whereever actions with $ and @ are used, use translate_code.
+        (action): Remove this nonterminal which is now useless.
+        * src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
+        (grammar_current_rule_action_append): Use translate_code.
+        (packgram): Bound check ruleno, itemno, and rule_length.
+        * src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
+        (last_string, last_braced_code_loc, max_left_semantic_context)
+        (scanner_initialize, scanner_free, scanner_last_string_free)
+        (gram_out, gram_lineno, YY_DECL_): Move to...
+        * src/scan-gram.h: this new file.
+        (YY_DECL): Rename as...
+        (GRAM_DECL): this.
+        * src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
+        * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
+        (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
+        (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
+        Move these declarations, and...
+        (obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
+        these to...
+        * src/flex-scanner.h: this new file.
+        * src/scan-gram.l (rule_length, rule_length_overflow)
+        (increment_rule_length): Remove.
+        (last_braced_code_loc): Rename as...
+        (gram_last_braced_code_loc): this.
+        Adjust to the changes of the parser.
+        Move all the handling of $ and @ into...
+        * src/scan-code.l: here.
+        * src/scan-gram.l (handle_dollar, handle_at): Remove.
+        (handle_action_dollar, handle_action_at): Move to...
+        * src/scan-code.l: here.
+        * src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
+        scan-code.h, scan-code-c.c, scan-gram.h.
+        (EXTRA_bison_SOURCES): Add scan-code.l.
+        (BUILT_SOURCES): Add scan-code.c.
+        (yacc): Be robust to white spaces.
+
+        * tests/conflicts.at, tests/input.at, tests/reduce.at,
+        * tests/regression.at: Adjust the column numbers.
+        * tests/regression.at: Adjust the error message.
+
+2006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
+        Use Akim's wording from
+        <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
+
+2006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Between Bison releases, manually append `+' to the previous Bison
+        release number, and use that as a signal to automatically print the
+        ChangeLog's CVS Id keyword from --version.  Discussed starting at
+        <http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
+        * ChangeLog: Add Id header.
+        * configure.ac (AC_INIT): Append `+' to `2.3'.
+        * src/.cvsignore: Add revision.c.
+        * src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
+        (BUILT_SOURCES): Add revision.c.
+        (revision.c): New target rule.  This file defines a new global variable
+        named revision.  It initializes it with either the Id from ChangeLog
+        or, if VERSION doesn't contain `+', with the empty string.
+        * src/getargs.c (version): Print the value of revision.
+        * src/revision.h: Extern revision.
+
+2006-06-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.3.
+        * configure.ac (AC_INIT): Likewise.
+
+2006-05-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (YYRECOVERING): Define to be a function-like macro
+        with no arguments, not as an object-like macro.  This is for
+        compatibility with data/yacc.c.  Problem reported by John P. Hartmann in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
+        * doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
+        Document this.
+
+2006-05-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/getargs.c (usage): Back out yesterday's modification of the
+        --help output so that we don't have to wait for translation before
+        releasing 2.3.
+
+2006-05-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Introduction): Don't say "GLR grammar".
+        Problem reported by Akim Demaille.
+
+2006-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
+
+2006-05-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (yy_reduce_print): Omit trailing white space in
+        generated source code.  Problem reported by Frans Englich in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
+
+2006-05-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
+        shell, not within 'make', so that 'make' by an ordinary builder
+        (using GNU make) does not worry about configuring gzip.  This also
+        works around a bug reported independently by Keith Thompson and by
+        Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
+        stderr rather than stdout, messing up the build logs.
+
+2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
+        to make sure that YYID will never be unused.  This fixes a 'make
+        maintainer-check' failure caused by the recent changes to the 'Trivial
+        grammars' test case, which caused g++ 4.1.0 to complain that YYID was
+        not used.
+        * data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
+
+2006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
+        state before an empty RHS is always resolved here.  Only the location
+        of that state is guaranteed to be resolved, and that's enough.  This
+        fixes the remaining bug reported by Derek M. Jones in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+        * tests/glr-regression.at (Uninitialized location when reporting
+        ambiguity): Test the above case.
+        Also, the embedded comments in this test case claim it checks the case
+        of an empty RHS that has inherited the initial location.  However, the
+        corresponding LHS was already resolved, so yyresolveLocations didn't
+        actually have reason to modify it.  Fix this by forcing
+        nondeterministic operation at the beginning of the parse.
+
+2006-05-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_yy_symbol_print_generate):
+        (b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
+        'const YYSTYPE', and similarly for YYLTYPE.  This fixes one
+        of the bugs reported today by Derek M Jones in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
+        * doc/bison.texinfo (Value Type): Document that YYSTYPE must be
+        defined to be a type name without parens or brackets.
+        (Location Type): Similarly for YYLTYPE.
+        * tests/regression.at (Trivial grammars): Put in a test for this
+        bug that will be caught by 'make maintainer-check' (though not,
+        alas, by 'make check' unless your compiler is picky).
+
+2006-05-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.2.
+        * configure.ac (AC_INIT): Likewise.
+
+2006-05-17  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyreportTree): Make room in yystates for the state
+        preceding the RHS.  This fixes the segmentation fault reported by Derek
+        M. Jones in
+        <http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
+        (yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
+        to the user.  Reported for yyreportTree by Derek M. Jones later in the
+        same thread.
+        * THANKS: Add Derek M. Jones.
+        Update my email address.
+        Fix typo in Steve Murphy's name.
+
+2006-05-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyreportSyntaxError): Fix off-by-one error in
+        checking against YYLAST that caused the parser to miss a potential
+        alternative in its diagnostic.
+        Problem reported by Maria Jose Moron Fernandez in
+        <http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
+        * data/lalr1.cc (yysyntax_error_): Likewise.
+        * data/yacc.c (yysyntax_error): Likewise.
+        * tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
+        tokens, in case we run into an older C compiler.
+        (_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
+        Use them to check for the off-by-one error fixed above.
+
+        * data/yacc.c (yytnamerr): Fix typo: local var should be of type
+        YYSIZE_T, not size_t.
+        * tests/regression.at (Trivial grammars): New test, to catch
+        the error fixed by the above patch.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+        * doc/bison.texinfo (C++ Bison Interface): Clarify the naming
+        scheme.
+        Reported by Steve Murphy.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
+        * data/glr.cc: b4_location_flag is now b4_locations_flag.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+        Implement --trace=m4.
+        * src/getargs.c (trace_types, trace_args): Accept trace_m4.
+        * src/output.c (output_skeleton): When set, pass -dV to m4.
+
+        Factor the handling of flags in m4.
+        * src/output.c (prepare): Rename the muscle names debug, defines,
+        error_verbose to debug_flag, defines_flag, error_verbose_flag.
+        * data/c.m4: Adjust.
+        (_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
+        Use b4_define_flag_if to define other b4_FLAG_if macros.
+        (b4_location_if): As a consequence, rename as...
+        (b4_locations_if): this, for consistency.
+        Adjust all the skeletons.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+        * etc/bench.pm: Shorten bench names.
+
+2006-05-14  Akim Demaille  <akim@lrde.epita.fr>
+
+        * src/output.h, src/output.c (error_verbose): Move to...
+        * src/getargs.h, src/getargs.c: here.
+        Sort the flags.
+        Adjust dependencies.
+
+2006-05-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_copyright): Put the special exception for Bison
+        skeletons here, so we don't have to put it in each skeleton.  All
+        uses changed.  Suggested by Akim Demaille.  Also, wrap the
+        copyright notice, in case it is longer than 80 columns.  Replace
+        comma by newline after title.
+
+2006-05-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
+        incompatibility, not a bug.  Mention that it wasn't fixed as of
+        flex 2.5.33.
+
+2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
+
+        * examples/extexi: Enforce the precedence of concatenation over
+        >>.
+        Reported by Tommy Nordgren.
+
+2006-05-11  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
+        with the member "token".
+        Reported by Martin Nylin.
+
+2006-05-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c: Switch to Bison 2.2 special-exception language in
+        the copyright notice.  Use more-regular format for titles and
+        copyright notices.
+        * data/glr.cc: Likewise.
+        * data/location.cc: Likewise.
+        * data/yacc.cc: Likewise.
+        * doc/bison.texinfo (Conditions): Document this.
+        * NEWS: likewise.  Upgrade version to 2.2.
+
+2006-04-27  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/glr.cc: Remove dead code.
+
+2006-04-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
+        that variable and the line breaks the bootstrap.  Problem reported
+        by Juan M. Guerrero.
+
+2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
+
+        * doc/bison.texinfo (Multiple start-symbols): New.
+
+2006-04-24  Akim Demaille  <akim@lrde.epita.fr>
+
+        * etc/README, etc/bench.pl: New.
+
+2006-04-03  Akim Demaille  <akim@lrde.epita.fr>
+
+        * src/scan-gram.l: Be robust to BRACED_CODE appearing before any
+        rule.
+        Reported by Mickael Labau.
+        * tests/input.at (Torturing the Scanner): Test it.
+
+2006-03-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
+        Problem reported by Bob Rossi.
+
+2006-03-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
+        and didn't really work.
+        For the index, use @ifnotinfo, not @iftex.
+        Minor cleanups of spacing and terminology.
+
+2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
+
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
+        of AT_NAME_PREFIX when %name-prefix is not used.
+
+2006-03-12  Akim Demaille  <akim@lrde.epita.fr>
+
+        Apply --prefix to C++ skeletons too: they change the namespace.
+        The test suite already exercize these cases.
+        * data/c++.m4 (b4_namespace): New.
+        * data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
+        * data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
+        * data/yacc.c, data/glr.c: Remove a useless `[]'.
+        * doc/bison.texinfo: Document it.
+        (Option Cross Key): Use @multitable in all formats.  It looks
+        nicer, even in TeX outputs.
+        (Rules): Use the same code whatever the output type is.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
+        (_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
+        * tests/calc.at: Use it, instead of hard coding `yy'.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+        * TODO: Remove dead items.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+        * doc/FAQ: Remove, merged into...
+        * doc/bison.texinfo (FAQ): this.
+        * doc/Makefile.am (EXTRA_DIST): Adjust.
+
+2006-03-10  Akim Demaille  <akim@lrde.epita.fr>
+
+        * data/c.m4 (b4_token_enum): Always define the enum of tokens,
+        even if empty.
+        * data/lalrl1.cc, data/glr.cc (parser::token_type): New.
+        * doc/bison.texinfo (Calc++ Scanner): Use it.
+
+2006-03-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix two nits reported by twlevo, plus one more that I discovered.
+
+        * src/assoc.h (assoc_to_string): Give a name to the arg, as
+        this is the usual Bison style.
+        * src/location.h (location_print): Likewise.
+
+        * src/reader.h (token_name): Likewise.
+
+2006-03-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix some nits reported by twlevo.
+        * doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
+        and "POSIX".  Use more-modern syntax for URLs.  Mention C++
+        and ask for Java.  Don't hardwire OS version numbers.  Add
+        copyright notice.
+        * m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
+        * src/conflicts.c (solved_conflicts_obstack): Now static.
+
+2006-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
+        page.  Say "you can use it" not "you may use it" as on the web page;
+        we're describing capabilities not granting permission.
+
+2006-03-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyresolveLocations): Rename local variables to avoid
+        shadowing warnings.  Use usual patter for iterating through RHS.
+        * tests/glr-regression.at
+        (Uninitialized location when reporting ambiguity):
+        Modify yylex so that it uses its argument, rather than trying
+        to rely on ARGSUSED (which doesn't work for gcc with warnings).
+        const char -> char const.
+
+        * tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
+        Don't use tabs inside commands; it messes up 'ps'.
+        Problem reported by twlevo.
+
+2006-03-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/glr-regression.at (Uninitialized location when reporting
+        ambiguity): New test case.
+        * data/glr.c (yyresolveLocations): New function, which uses
+        YYLLOC_DEFAULT.
+        (yyresolveValue): Invoke yyresolveLocations before reporting an
+        ambiguity.
+        * doc/bison.texinfo (Default Action for Locations): Note
+        YYLLOC_DEFAULT's usage for ambiguity locations.
+        (GLR Semantic Actions): Cross-reference those notes.
+
+2006-03-04  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/glr-regression.at (Leaked semantic values when reporting
+        ambiguity): Remove unnecessary union and type declarations.
+        (Leaked lookahead after nondeterministic parse syntax error): New test
+        case.
+        * data/glr.c (yyparse): Check for zero stacks remaining before
+        attempting to shift the lookahead so that you don't lose it.
+
+2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
+        * tests/glr-regression.at (Leaked semantic values when reporting
+        ambiguity): New test case.
+        * data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
+        yyabort rather than invoking yyFail, which invokes longjmp.  Remove the
+        now unnecessary yystackp parameter.
+        (yyresolveValue): Return yyreportAmbiguity's result.  Now the necessary
+        destructors can be called.
+
+        * tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
+        in existing testcases.
+
+2006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        Don't leak semantic values for parent RHS when a user action cuts the
+        parser, and clean up related code a bit.
+        * tests/glr-regression.at (Leaked merged semantic value if user action
+        cuts parse): Rename to...
+        (Leaked semantic values if user action cuts parse): ... this.  Add check
+        for leaked parent RHS values.
+        * data/glr.c (yydestroyGLRState): In debugging output, distinguish
+        between an unresolved state (non-empty chain of semantic options) and
+        an incomplete one (signaled by an empty chain).
+        (yyresolveStates): Document the interface.  Move all manipulation of a
+        successfully or unsuccessfully resolved yyGLRState to...
+        (yyresolveValue): ... here so that yyresolveValue always leaves a
+        yyGLRState with consistent data and thus is easier to understand.
+        Remove the yyvalp and yylocp parameters since they are always just
+        taken from the yys parameter.  When reporting a discarded merged value
+        in debugging output, note that it is incompletely merged.  Document the
+        interface.
+        (yyresolveAction): If resolving any of the RHS states fails, destroy
+        them all rather than leaking them.  Thus, as long as user actions are
+        written to clean up the RHS correctly, yyresolveAction always cleans up
+        the RHS of a semantic option.  Document the interface.
+
+2006-02-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
+        led to a segmentation fault in GNU Pascal.  Problem reported
+        by Waldek Hebisch.
+
+2006-02-21  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
+        mid-rule action inside a nonterminal symbol in order to declare a
+        destructor for its semantic value.
+
+2006-02-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
+        YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
+        __cplusplus && ! defined _STDLIB_H && !
+        ((defined YYMALLOC || defined malloc) && (defined YYFREE ||
+        defined free))]: Include <stdlib.h> rather than rolling our own
+        declarations of malloc and free, to avoid problems with
+        incompatible declarations (using 'throw') C++'s stdlib.h.  This
+        should fix Debian bug 340012
+        <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
+        reported by Guillaume Melquiond.
+
+2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Clarify symbols versus types in unused-value warnings.
+
+        * configure.ac (AC_INIT): Bump version number.
+
+2006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.1a.
+        * tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
+        since C99 requires this.
+
+2006-02-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * m4/c-working.m4: New file.
+        * configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
+
+2006-02-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * Makefile.maint: Merge from coreutils.
+
+2006-02-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+        * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
+        configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
+        CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
+        LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
+        messes up because C++ code is compiled in 32-bit mode but linked
+        in 64-bit mode.
+
+2006-02-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+        * doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
+        2.5.31.  This resembles the 2005-10-10 patch to src/scan-skel.l.
+
+        * examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
+        nodist_PROGRAMS, since we don't need to actually compile the
+        example if we're just doing a plain 'make'.  This avoids bothering
+        the installer unnecessarily about problems due to weird C++
+        compilers.
+
+2006-02-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+        * tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
+        than #include "...", and compile with -I'.'.  The old method was
+        not portable, according to Posix and the C standard, and it does
+        not work with Sun C 5.7, where previous #line directives affect
+        the working directory used in later #include "..." directives.
+
+2006-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        Various DJGGP specific issues in /djgpp
+
+2006-02-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+        More portability fixes for problems summarized by Nelson H. F. Beebe.
+
+        * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
+        '#include <map>' works and that you can apply ++ to iterators.
+
+2006-02-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Work around portability problems summarized by Nelson H. F. Beebe in
+        <http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
+
+        * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+        that '#include <string>' works.
+
+        * data/lalr1.cc (yytranslate_): No longer inline, to work around a
+        porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
+        "warning: sorry: semantics of inline function static data `const
+        unsigned char translate_table[262]' are wrong (you'll wind up with
+        multiple copies)".
+
+        * lib/bbitset.h (struct bitset_vtable): Rename members not, and,
+        or, xor to not_, and_, or_, and xor_, respectively.  This works
+        around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
+        random system header somewhere that includes the equivalent of
+        <iso646.h>.
+
+        * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
+        -E" works; it apparently doesn't work with PathScale EKO Compiler
+        Suite Version 2.0.
+
+2006-01-30  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        During deterministic GLR operation, user actions should be able to
+        influence the parse by changing yychar.  To make this easier to fix and
+        to make glr.c easier to evolve in general, don't maintain yytoken in
+        parallel with yychar; just compute yytoken when needed.
+        * tests/glr-regression.at (Incorrect lookahead during deterministic
+        GLR): Check that setting yychar in a user action has the intended
+        effect.
+        * data/glr.c (yyGLRStack): Remove yytokenp member.
+        (yyclearin): Don't set *yytokenp.
+        (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
+        yychar rather than *yytokenp to determine the current lookahead.
+        Compute yytoken locally when needed.
+        (yyparse): Likewise.  Remove the local yytoken that yytokenp used to
+        point to.
+
+        * doc/bison.texinfo (Bison Options): Remove stray sentence fragment
+        after `--report' documentation.
+
+2006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/parse-gram.y (grammar_declaration): Location of printer
+        symbol is @1, not list->location.  Bug reported by twlevo.
+        * tests/input.at (Incompatible Aliases): Adjust to above change.
+
+2006-01-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/input.at (AT_CHECK_UNUSED_VALUES): Remove.  Instead, do
+        all the test at once.  This makes the output easier to read in the
+        normal case.
+
+        Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
+        got from <http://bro-ids.org/download.html>.  The bug is that
+        when two actions appeared in succession, the second one was
+        scanned before the first one was added to the grammar rule
+        as a midrule action.  Bison then output the incorrect warning
+        "parse.y:905.17-906.36: warning: unused value: $3".
+        * src/parse-gram.y (BRACED_CODE, action): These are no longer
+        associated with a value.
+        (rhs): Don't invoke grammar_current_rule_action_append.
+        (action): Invoke it here instead.
+        * src/reader.c (grammar_midrule_action): Now extern.
+        (grammar_current_rule_action_append): Don't invoke
+        grammar_midrule_action; that is now the scanner's job.
+        * src/reader.h (last_string, last_braced_code_loc):
+        (grammar_midrule_action): New decls.
+        * src/scan-gram.l (last_string): Now extern, sigh.
+        (last_braced_code_loc): New extern variable.
+        (<INITIAL>"{"): Invoke grammar_midrule_action if the current
+        rule already has an action.
+        (<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
+        * tests/input.at (AT_CHECK_UNUSED_VALUES):
+        Add some tests to check that the above changes fixed the bug.
+
+2006-01-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
+        All used changed.  Check whether the symbol has a destructor,
+        not whether it is typed.
+        * tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
+        that the values are still reported as unused.  All line numbers
+        adjusted.
+
+2006-01-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Work around a bug in bro 0.8, which underparenthesizes its
+        definition of YYLLOC_DEFAULT.
+        * data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
+        their arguments.
+        * data/lalr1.cc: Likewise.
+        * data/yacc.cc: Likewise.
+
+2006-01-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Work around a bug in Pike 7.0, and give the Pike folks a
+        better way to override the usual int widths.
+        * data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
+        user can override the types.
+        (short): #undef, to work around a bug in Pike 7.0.
+        (yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
+        (union yyalloc.yyss): Use yytype_int16 rather than short.
+        All uses changed.
+        (yysigned_char): Remove.
+        * src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
+        (YYTYPE_INT16): New macros, to test the new facility in yacc.c.
+        * tests/regression.at (Web2c Actions): Adjust to above changes.
+
+        * src/reader.c (check_and_convert_grammar): New function.
+        (reader): Close the input file even if something went wrong during
+        parsing.  Minor file descriptor leak reported by twlevo.
+
+        * src/assoc.c (assoc_to_string): Use a default: abort (); case
+        to pacify gcc -Wswitch-default.
+        * src/scan-gram.l (adjust_location): Use a default: break; case
+        to pacify gcc -Wswitch-default.
+        * src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
+        (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
+        (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
+        Move these decls to scan-skel.l, since they don't need to be
+        visible elsewhere.
+        * src/scan-skel.l: Accept the above decls.
+        (skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
+        is used.
+
+2006-01-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * Makefile.cfg (local-checks-to-skip): Add changelog-check,
+        since we don't want to insist on a version number at the start
+        of the changelog every time.
+        * Makefile.maint: Sync from coreutils a bit better.
+        (sc_trailing_blank): Renamed from sc_trailing_space.
+        All uses changed.
+        (sc_no_if_have_config_h, sc_require_config_h):
+        (sc_prohibit_assert_without_use): New rules.
+        (sc_obsolete_symbols): Don't catch Makefile.maint itself.
+        (sc_dd_max_sym_length): Fix leading spaces in rule.
+        (sc_system_h_headers): Prefix with @.
+        (sc_useless_cpp_parens, m4-check): Output line numbers.
+        (changelog-check): Allow version only in head.
+        * data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
+        satisfy new Makefile.maint rule.
+        * data/glr.c: Likewise.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/yacc.c: Likewise.
+        * lib/ebitsetv.c: Likewise.
+        * lib/lbitset.c: Likewise.
+        * lib/subpipe.c: Likewise.
+        * lib/timevar.c: Likewise.
+        * src/system.h: Likewise.
+        * data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
+        * djgpp/Makefile.maint: Add copyright notice.
+        * djgpp/README.in: Likewise.
+        * djgpp/config.bat: Likewise.
+        * djgpp/config.site: Likewise.
+        * djgpp/config_h.sed: Likewise.
+        * djgpp/djunpack.bat: Likewise.
+        * djgpp/config.sed: Fix copyright notice to match standard format.
+        * djgpp/subpipe.h: Likewise.
+        * lib/bitsetv-print.c: Likewise.
+        * lib/bitsetv.c: Likewise.
+        * lib/subpipe.h: Likewise.
+        * lib/timevar.c: Likewise.
+        * lib/timevar.h: Likewise.
+        * djgpp/subpipe.c: Use standard recipe for config.h.
+        * lib/abitset.c: Likewise.
+        * lib/bitset.c: Likewise.
+        * lib/bitset_stats.c: Likewise.
+        * lib/bitsetv-print.c: Likewise.
+        * lib/bitsetv.c: Likewise.
+        * lib/ebitsetv.c: Likewise.
+        * lib/get-errno.c: Likewise.
+        * lib/lbitset.c: Likewise.
+        * lib/subpipe.c: Likewise.
+        * lib/timevar.c: Likewise.
+        * lib/vbitset.c: Likewise.
+        * tests/local.at: Likewise.
+        * src/scan-gram.l: Don't include verify.h, since system.h does
+        that for us.
+        * .x-sc_require_config_h: New file.
+        * .x-sc_unmarked_diagnostics: New file.
+
+2006-01-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Be a bit more systematic about using 'abort'.
+        * lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
+        * lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
+        Put 'default: abort ();' before some other case, to satisfy older
+        pedantic compilers.
+        * lib/bitset_stats.c (bitset_stats_init): Likewise.
+        * lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
+        * lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
+        * src/conflicts.c (resolve_sr_conflict): Likewise.
+        * src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
+        (get_decision_str, get_orientation_str, get_node_alignment_str):
+        (get_arrow_mode_str, get_crossing_type_str, get_view_str):
+        (get_linestyle_str, get_arrowstyle_str): Likewise.
+        * src/conflicts.c (resolve_sr_conflict):
+        Use a default case rather than one for the one remaining enum
+        value, to catch invalid enum values as well.
+        * src/lalr.c (set_goto_map, map_goto):
+        Prefer "assert (FOO);" to "if (!FOO) abort ();".
+        * src/nullable.c (nullable_compute, token_definitions_output):
+        Likewise.
+        * src/reader.c (packgram, reader): Likewise.
+        * src/state.c (transitions_to, state_new, state_reduction_find):
+        Likewise.
+        * src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
+        (symbol_pack): Likewise.
+        * src/tables.c (conflict_row, pack_vector): Likewise.
+        * src/scan-skel.l (QPUTS): Remove unnecessary parens.
+        (BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
+        * src/system.h: Don't include <assert.h>.
+        (assert): New macro.
+
+        * doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
+        (Destructor Decl, Parser Function, Pure Calling):
+        Describe rules for braces inside C code more carefully.
+
+2006-01-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix some porting glitches found by Nelson H. F. Beebe.
+        * lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
+        compilers that don't understand that abort () does not return.
+        * src/state.c (transitions_to): Likewise.
+        * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
+        that '#include <cstdlib>' works.
+        * src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
+        (INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
+        #undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
+        for the benefit of some pre-C99 compilers.
+
+        * bootstrap: Undo changes to gnulib files that autoreconf made.
+
+        Minor fixups to get 'make maintainer-check' to work.
+        * configure.ac: Don't use -Wnested-externs, as it's incompatible
+        with the new verify.h implementation.
+        * data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
+        * data/glr.c (YYUSE): Depend on __GNUC__ as well.
+        * data/yacc.c (YYUSE): Likewise.
+        * data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
+        * lib/subpipe.c (end_of_output_subpipe): The args are unused.
+        * src/parse-gram.y (declaration): Don't pass a string constant
+        to a function that expects char *, since GCC might complain
+        about the constant value.
+        * src/reader.c (symbol_typed_p): Add parens to pacify GCC.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
+        before #defining them.
+        * tests/glr-regression.at
+        (Incorrectly initialized location for empty right-hand side in GLR):
+        In yyerror, use the msg arg.
+        (Corrupted semantic options if user action cuts parse):
+        (Incorrect lookahead during deterministic GLR):
+        (Incorrect lookahead during nondeterministic GLR):
+        Don't name a local var 'index'; it shadows string.h's 'index'.
+
+2006-01-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
+        location, not just parts of it.
+
+2006-01-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Document the fact that multiple %unions are now allowed.
+        * doc/bison.texinfo (Union Decl): Likewise.
+        * TODO: This feature is now implemented, so remove it from
+        the wishlist.
+
+        * Makefile.maint: Merge with coreutils Makefile.maint.
+        (CVS_LIST): Use build-aux version if available.
+        (VERSION_REGEXP): New macro.
+        (syntax-check-rules): Add sc_no_if_have_config_h,
+        sc_prohibit_assert_without_use, sc_require_config_h,
+        sc_useless_cpp_parens.
+        (sc_obsolete_symbols): Check for O_NDELAY.
+        (sc_dd_max_sym_length): Track coreutils.
+        (sc_unmarked_diagnostics): Look in all files, not just *.c.
+        (sc_useless_cpp_parens): New rule.
+        (news-date-check): Look for version or today's date.
+        (changelog-check): Don't require version number near head.
+        (copyright-check): Use current year instead of hardwiring 2005.
+        (my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
+        (announcement): Add --gpg-key-ID.
+
+        * djgpp/config.sed: Add copyright notice, and replace "filesystem"
+        with "file system".
+
+        Avoid undefined behavior that addressed just before the start of an
+        array.  Problem reported by twlevo.
+        * src/reader.c (packgram): Prepend a new sentinel before ritem.
+        * src/lalr.c (build_relations): Rely on new sentinel.
+        * src/gram.c (gram_free): Adjust to new sentinel.
+
+2006-01-12  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
+        yylookaheadNeeds.  All uses updated.
+        (yysplitStack): Rename local yynewLookaheadStatuses to
+        yynewLookaheadNeeds.
+        * data/glr-regression.at (Incorrect lookahead during nondeterministic
+        GLR): In comments, change `lookahead status' to `lookahead need'.
+
+2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+        * data/glr.c (yysplitStack): A little stylistic rewrite.
+
+2006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+        * data/glr.c (yyaddDeferredAction): Flesh out the comment.
+
+2006-01-11  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * doc/bison.texinfo: Fix some typos.
+        (GLR Semantic Actions): New subsection discussing special
+        considerations because GLR semantic actions might be deferred.
+        (Actions): Mention look-ahead usage of yylval.
+        (Actions and Locations): Mention look-ahead usage of yylloc.
+        (Special Features for Use in Actions): Add YYEOF entry and mention it
+        in the yychar entry.
+        In the yychar entry, remove mention of the local yychar case (pure
+        parser) since this is irrelevant information when writing semantic
+        actions and since it's already discussed in `Table of Symbols' where
+        yychar is otherwise described as an external variable.
+        In the yychar entry, don't call it the `current' look-ahead since it
+        isn't when semantic actions are deferred.
+        In the yychar and yyclearin entries, add note about deferred semantic
+        actions.
+        Add yylloc and yylval entries discussing look-ahead usage.
+        (Look-Ahead Tokens): When discussing yychar, don't call it the
+        `current' look-ahead, and do mention yylval and yylloc.
+        (Error Recovery): Cross-reference `Action Features' when mentioning
+        yyclearin.
+        (Table of Symbols): In the yychar entry, don't call it the `current'
+        look-ahead.
+        In the yylloc and yylval entries, mention look-ahead usage.
+
+2006-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/glr-regression.at: Update copyright year to 2006.
+
+2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
+        use during nondeterministic operation to track which stacks have
+        actually needed the current lookahead.
+        (yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
+        Allocate, deallocate, resize, and otherwise shuffle space for
+        yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
+        (yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
+        appropriately during nondeterministic operation.
+        (yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
+        members to store the current lookahead to be used by the deferred
+        user action.
+        (yyaddDeferredAction): Add size_t yyk parameter specifying the stack
+        from which the RHS is taken.  Set the lookahead members of the new
+        yySemanticOption according to the lookahead status for stack yyk.
+        (yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
+        yyaddDeferredAction.
+        (yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
+        members of yySemanticOption before invoking yyuserAction, and then set
+        them back to their current values afterward.
+        (yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
+        (yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
+        * tests/glr-regression.at: Remove `.' from the ends of recent test case
+        titles for consistency.
+        (Leaked merged semantic value if user action cuts parse): In order to
+        suppress lint warnings, use arguments in merge function, and assign
+        char value < 128 in main.
+        (Incorrect lookahead during deterministic GLR): New test case.
+        (Incorrect lookahead during nondeterministic GLR): New test case.
+
+2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
+        !yyvaluep as signal that no semantic value is available to print.
+        * data/glr.c (yydestroyGLRState): If state is not resolved, don't try
+        to print a semantic value.
+
+2006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * tests/glr-regression.at: For consistency with my newer test cases,
+        don't thank myself.
+
+2006-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyresolveValue): When merging semantic options, if at
+        least one user action succeeds but a later one cuts the parse, then
+        destroy the semantic value before returning rather than leaking it.
+        (yyresolveStates): If a user action cuts the parse and thus
+        yyresolveValue fails, ignore the (unset) semantic value rather than
+        corrupting the yyGLRState, and empty the semantic options list since
+        the user actions should have called all necessary destructors.
+        Simplify code with YYCHK.
+        * tests/glr-regression.at (Corrupted semantic options if user action
+        cuts parse): New test case.
+        (Undesirable destructors if user action cuts parse): New test case.
+        Before applying any of this patch, this test case never actually failed
+        for me... but only because the corrupted semantic options usually
+        masked this bug.
+        (Leaked merged semantic value if user action cuts parse): New test
+        case.
+
+2006-01-05  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
+
+2006-01-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_c_modern): New macro, with a new provision for
+        _MSC_VER.  Problem reported by Cenzato Marco.
+        (b4_c_function_def): Use it.
+        * data/yacc.c (YYMODERN_C): Remove.  All uses replaced by
+        b4_c_modern.
+        (yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
+        than rolling our own.
+
+2006-01-04  Akim Demaille  <akim@epita.fr>
+
+        Also warn about non-used mid-rule values.
+        * src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
+        member.
+        (symbol_list_new): Adjust.
+        * src/reader.c (symbol_typed_p): New.
+        (grammar_rule_check): Use it.
+        (grammar_midrule_action): Bind a mid-rule LHS to its rule.
+        Check its rule.
+        * tests/input.at (AT_CHECK_UNUSED_VALUES): New.
+        Use it.
+        * tests/actions.at (Exotic Dollars): Adjust.
+
+2006-01-04  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_midrule_action): If $$ is set in a
+        mid-rule, move the `used' bit to its lhs.
+        * tests/input.at (Unused values): New.
+        * tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
+
+2006-01-03  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Bison Options): Say more accurately what
+        --yacc does.
+        * src/parse-gram.y (rules_or_grammar_declaration): Don't complain
+        about declarations in the grammar when in Yacc mode, as POSIX does
+        not require a diagnostic when the grammar uses extensions.
+
+        * src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
+
+        Warn about dubious constructions like "%token T T".
+        Reported by twlevo.
+        * src/symtab.h (struct symbol.declared): New member.
+        * src/symtab.c (symbol_new): Initialize it to false.
+        (symbol_class_set): New arg DECLARING, specifying whether
+        this is a declaration that we want to warn about, if there
+        is more than one of them.  All uses changed.
+
+        * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
+        Allow multiple %union directives, whose contents concatenate.
+        * src/parse-gram.y (grammar_declaration): Likewise.
+        Use muscle_code_grow, so that we don't need stype_line any more.
+        All uses changed.
+
+        * src/muscle_tab.c (muscle_grow): Fix comment.
+
+        * ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
+        * data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
+        Update copyright year to 2006.
+
+2006-01-03  Akim Demaille  <akim@epita.fr>
+
+        Have glr.cc pass (some of) the calc.at tests.
+        * data/glr.cc (b4_parse_param_orig): New.
+        (b4_parse_param): Improve its definition, and bound it more
+        clearly in the skeleton.
+        (b4_epilogue): Append, instead of prepending, in order to keep
+        #line consistency.
+        Simplify the generation of auxiliary functions: locations and
+        purity are mandated.
+        (b4_global_tokens_and_yystype): Honor it.
+        * data/location.cc (c++.m4): Don't include it.
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
+        and AT_SKEL_CC_IF.
+        * tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
+        AT_LALR1_CC_IF.
+        Be sure to initialize the first position's filename.
+        (AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
+        mandated anyway.
+        (AT_CHECK_CALC_GLR_CC): New.
+        Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
+
+2006-01-02  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_skeleton): Don't hard wire the inclusion of
+        c.m4.
+        * data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
+        * data/glr.cc: Do not include stack.hh.
+
+2006-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
+
+        * data/glr.c: Reformat whitespace with tabs.
+        (b4_lpure_formals): Remove this unused m4 macro.
+        * tests/cxx-type.at: Reformat whitespace with tabs.
+        (_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
+        since it's a member.  Rename type to isNterm for clarity.
+
+2005-12-29  Akim  <akim@sulaco.local>
+
+        Let glr.cc catch up with symbol_value_print.
+        * data/glr.cc (b4_yysymprint_generate): Replace by...
+        (b4_yy_symbol_print_generate): this.
+        (yy_symbol_print, yy_symbol_value_print): Declare them.
+
+2005-12-28  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/location.h (boundary): Note that a line or column equal
+        to INT_MAX indicates an overflow.
+        * src/scan-gram.l: Include verify.h.  Don't include get-errno.h.
+        (rule_length_overflow, increment_rule_length, add_column_width):
+        New functions.
+        (<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
+        (<SC_BRACED_CODE>"}"):
+        Use increment_rule_length rather than incrementing it by hand.
+        (adjust_location, handle_syncline): Diagnose overflow.
+        (handle_action_dollar, handle_action_at):
+        Fix bug with monstrosities like $-2147483648.
+        Remove now-unnecessary checks.
+        (scan_integer): Verify assumptions and remove now-unnecessary checks.
+        (convert_ucn_to_byte): Verify assumptions.
+        (handle_syncline): New arg LOC.  All callers changed.
+        Don't store through a value derived from char const * pointer.
+
+        * src/reader.c (grammar_rule_check): Rewrite slightly to avoid
+        GCC warnings.
+
+2005-12-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/reader.c (grammar_midrule_action, grammar_symbol_append):
+        Remove unnecessary forward static decls.
+
+2005-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_current_rule_check): Also check that $$
+        is used.
+        Take the rule to check as argument, hence rename as...
+        (grammar_rule_check): this.
+        * src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
+        Rename as...
+        (grammar_rule_begin, grammar_rule_end): these, for consistency.
+        (grammar_midrule_action, grammar_symbol_append): Now static.
+        * tests/torture.at (input): Don't rely on the default action
+        being always performed.
+        * tests/calc.at: "Set" $$ even when the action is "cut" with
+        YYERROR or other.
+        * tests/actions.at (Exotic Dollars): Instead of using unused
+        values, check that the warning is issued.
+
+2005-12-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Improve wording for unused-value warnings.
+
+2005-12-22  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
+        (b4_yysymprint_generate): Rename as...
+        (b4_yy_symbol_print_generate): this.
+        Generate yy_symbol_print instead of yysymprint.
+        Generate also yy_symbol_value_print, and use it.
+
+2005-12-22  Akim Demaille  <akim@epita.fr>
+
+        * NEWS: Warn about unused values.
+        * src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
+        a `used' member.
+        (symbol_list_n_get, symbol_list_n_used_set): New.
+        (symbol_list_n_type_name_get): Use symbol_list_n_get.
+        * src/scan-gram.l (handle_action_dollar): Flag used symbols.
+        * src/reader.c (grammar_current_rule_check): Check that values are
+        used.
+        * src/symtab.c (symbol_print): Accept 0.
+        * tests/existing.at: Remove the type information.
+        Empty the actions.
+        Remove useless actions (beware of mid-rule actions: perl -000
+        -pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
+        * tests/actions.at (Exotic Dollars): Use unused values.
+        * tests/calc.at: Likewise.
+        * tests/glr-regression.at (No users destructors if stack 0 deleted):
+        Likewise.
+
+        * src/gram.c (rule_useful_p, rule_never_reduced_p): Use
+        rule_useful_p.
+
+2005-12-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Undo 2005-12-01 tentative license wording change.  The wording is
+        still being reviewed by the lawyers, and we don't want to wait for
+        them before publishing a test release.  For now, revert to the
+        previous wording.
+        * NEWS: Undo 2005-12-01 change.
+        * data/glr.c: Revert to previous license wording.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/location.cc: Likewise.
+        * data/yacc.c: Likewise.
+
+        * NEWS: Reword %destructor vs YYABORT etc.
+        * data/glr.c: Use American spacing, for consistency.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/yacc.c: Likewise.
+        * data/yacc.c: Reformat comments slightly.
+        * doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
+        for consistency.  Fix some spelling errors and reword recently-included
+        text slightly.
+        * tests/cxx-type.at: Cast results of malloc, for C++.
+
+2005-12-21  Joel E. Denny  <address@hidden>
+
+        * tests/cxx-type.at: Construct a tree, count the parents of shared
+        nodes, and free each node once and only once.  Previously, the memory
+        for semantic values was leaked instead.
+
+2005-12-21  Joel E. Denny  <address@hidden>
+
+        * data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
+        (yylval, yylloc): If pure, #define to yystackp->yyval and
+        yystackp->yyloc similar to yychar and yynerrs.
+        (yyparse): If pure, remove local yylval and yylloc. Add local
+        yystackp to accommodate pure definitions of yylval and yylloc.
+        (b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
+        yylvalp and yyllocp to &yylval and &yylloc.
+        (nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
+        namespace. Previously, nerrs and char were missing, but lval and lloc
+        weren't necessary.
+        (yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
+        yylvalp and yyllocp parameters since, if pure, these are now always
+        accessible through yystackp.  If not pure, they are still accessible
+        globally.
+        * data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
+        `if (YYID (N))' to pacify lint.
+
+2005-12-21  Akim Demaille  <akim@epita.fr>
+
+        YYACCEPT, YYERROR, and YYABORT, as user actions, should not
+        destroy the RHS symbols of a rule.
+        * data/yacc.c (yylen): Initialize to 0.
+        Keep its value to the number of items to possibly shift.
+        In particular, a regular successful parse that ends on YYFINAL by
+        a (internal) YYACCEPT must not have yylen != 0.
+        (yyerrorlab, yyreturn): Pop the RHS.
+        Reorder a bit to emphasize the `shifting' bits of code.
+        (YYPOPSTACK): Now accept a number of items to pop.
+        * data/lalr1.cc: Likewise.
+        * data/glr.c: Formatting changes.
+        Use goto instead of fall through.
+        * doc/bison.texinfo (Destructor Decl): Complete.
+
+2005-12-20  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        * Makefile.am: DJGPP specific files added to EXTRA_DIST.
+        * djgpp/Makefile.maint: Fix PACKAGE variable computation.
+        * djgpp/config.bat: Replace every occurence of the file name
+        scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
+        c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
+        * djgpp/config.sed: Replace every occurence of the file name
+        scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
+        c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
+        * djgpp/djunpack.bat: DJGPP specific file.
+        * djgpp/fnchange.lst: DJGPP specific file.
+        * djgpp/README.in: Add new information about how to unpack the bison
+        source on MSDOS and other systems which have 8.3 file name restrictions
+        using djunpack.bat and fnchange.lst.
+
+2005-12-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (build_cvs_prefix): Remove; unused.
+        (CVS_PREFIX): Adjust to yesterday's Savannah reorganization
+        when getting gnulib.
+
+2005-12-12  "Joel E. Denny" <jdenny@ces.clemson.edu>
+
+        * data/glr.c: Reorder typedef declarations for structs to match order
+        of struct declarations.
+        Rename yystack everywhere to yystackp except in yyparse where it's not
+        a pointer.
+        (yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
+        consistency.
+        (yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
+        (yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
+        (yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
+        lint.
+
+2005-12-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/sets.at (Accept): Fix typos in regular expression used to
+        sed out the final state number.
+
+        Work around portability problem on Solaris 10: flex-generated
+        files include <stdio.h> before <config.h>, which messes up
+        because the latter defines __EXTENSIONS__.  Address the problem
+        by creating two new little files that include <config.h> first,
+        then include the flex-generated files.  Rewrite everyone else
+        to include <config.h> first, as well.
+        * lib/timevar.c: Always include "config.h".
+        * src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
+        scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
+        (EXTRA_bison_SOURCES): New macro.
+        * src/scan-gram-c.c, src/scan-skel-c.c: New files.
+        * src/system.h: Don't include config.h.
+        * src/LR0.c: Include <config.h> first.
+        * src/assoc.c: Likewise.
+        * src/closure.c: Likewise.
+        * src/complain.c: Likewise.
+        * src/conflicts.c: Likewise.
+        * src/derives.c: Likewise.
+        * src/files.c: Likewise.
+        * src/getargs.c: Likewise.
+        * src/gram.c: Likewise.
+        * src/lalr.c: Likewise.
+        * src/location.c: Likewise.
+        * src/main.c: Likewise.
+        * src/muscle_tab.c: Likewise.
+        * src/nullable.c: Likewise.
+        * src/output.c: Likewise.
+        * src/parse-gram.y: Likewise.
+        * src/print.c: Likewise.
+        * src/print_graph.c: Likewise.
+        * src/reader.c: Likewise.
+        * src/reduce.c: Likewise.
+        * src/relation.c: Likewise.
+        * src/state.c: Likewise.
+        * src/symlist.c: Likewise.
+        * src/symtab.c: Likewise.
+        * src/tables.c: Likewise.
+        * src/uniqstr.c: Likewise.
+        * src/vcg.c: Likewise.
+
+        * src/parse-gram.y: Fix minor problems uncovered by lint.
+        (current_lhs, current_lhs_location): Now static.
+        (current_assoc): Remove unused variable.
+
+        Cleanups so that Bison-generated parsers have less lint.
+        * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
+        Prepend /*ARGSUSED*/, for lint's sake.
+        * data/glr.c (YYUSE): Properly parenthesize, and use an alternate
+        definition if 'lint' is defined.
+        (YYID): New macro (or function, if lint).
+        All uses of /*CONSTCOND*/0 replaced by YYID(0).
+        * data/yacc.c: Likewise.
+        * data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
+        (yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
+        * data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
+        is C++ only.
+        * data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
+        * data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
+        Use YYID(0) rather than 0, for lint.
+        (yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
+        (yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
+
+2005-12-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/glr-regression.at
+        (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+        Close memory leak reported by twlevo.
+
+2005-12-06  "Joel E. Denny" <jdenny@ces.clemson.edu>
+
+        * data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
+        all stacks.
+        (yyparse): Iterate another stack in order to call user destructors.
+        * tests/glr-regression.at (No users destructors if stack 0 deleted):
+        New test case.
+        (Duplicated user destructor for lookahead): This test now is expected
+        to succeed.
+
+2005-12-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Document the following change.
+        * data/yacc.c: Say "parser skeleton" rather than "file", since
+        it's no longer just a file.
+        * data/glr.c: Grant a special exception for C GLR parsers, that
+        reads like the already-existing exception for C LALR(1) parsers.
+        * data/glr.cc: Likewise.
+        * data/lalr1.cc: Likewise.
+        * data/location.cc: Likewise.
+        * data/yacc.c: Reword the "written by" statement to clarify that
+        it was the parser skeleton, not the entire output file.
+        * data/glr.c: Written by Paul Hilfinger.
+        * data/glr.cc: Written by Akim Demaille.
+        * data/lalr1.cc: Likewise.
+
+2005-11-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
+        Fix typos in previous change that broke 'make check'.
+        YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
+        supported in C.
+        * tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
+        Don't check NUM-STDERR-LINES, since the output format is fluctuating.
+        We can revert this once things settle down.
+
+        * src/conflicts.c (conflicts_print): Don't print file name twice
+        when %expect fails because there were no conflicts.
+        * doc/bison.texinfo (Expect Decl): Tighten up wording in previous
+        change.
+        * tests/conflicts.at (%expect not enough, %expect too much):
+        (%expect with reduce conflicts): Adjust to new behavior.
+
+2005-11-18  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflicts_print): Unsatisfied %expectation are
+        errors.
+        * NEWS: Document this.
+        * doc/bison.texinfo (Expect Decl): Likewise.
+
+2005-11-16  Akim Demaille  <akim@epita.fr>
+
+        Generalize the display of semantic values and locations in traces.
+        * data/glr.c (yy_reduce_print): Fix indices (again).
+        * data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
+        literal integers.
+        * data/lalr1.cc (yyreduce_print): Rename as...
+        (yy_reduce_print): this.
+        Display values and locations.
+        * data/yacc.c (yy_reduce_print): Likewise.
+        (YY_REDUCE_PRINT): Adjust to pass the required arguments.
+        (yysymprint): Move higher to be visible from yy_reduce_print).
+        (yyparse): Adjust.
+        * tests/calc.at: Adjust the expected length of the traces.
+
+2005-11-14  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (yy_reduce_print): The loop was quite wrong: type are
+        from 1 to N, while values and location start at 0.
+        (b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
+
+2005-11-14  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (yy_reduce_print): Fix the $ number.
+
+2005-11-14  Akim Demaille  <akim@epita.fr>
+
+        "Use" parse parameters.
+        * data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
+        * data/glr.c, data/glr.cc: Use them.
+        * data/glr.c (YYUSE): Have a C++ definition that supports
+        non-pointer types.
+
+2005-11-14  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (yyexpandGLRStack): Declare only if defined.
+
+2005-11-14  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.cc: New.
+        * data/m4sugar/m4sugar.m4 (m4_prepend): New.
+
+2005-11-12  Akim Demaille  <akim@epita.fr>
+
+        Let position and location be PODs.
+        * data/location.cc (position::initialize, location::initialize): New.
+        (position::position, location::location): Define only if
+        b4_location_constructors is defined.
+        * data/lalr1.cc (b4_location_constructors): Define it for backward
+        compatibility.
+        * doc/bison.texinfo (Initial Action Decl): Use initialize.
+
+2005-11-12  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Move the body of the ctor and dtor into the
+        parser file (instead of the header).
+        Wrap the implementations in a "namespace yy".
+
+2005-11-12  Akim Demaille  <akim@epita.fr>
+
+        Have glr.c include its header file when created.
+        * data/glr.c (b4_shared_declarations): New.
+        Output them verbatim in the parser if !%defines, otherwise
+        output then in the header file, and include it instead.
+
+2005-11-11  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c: Comment changes.
+
+2005-11-11  Akim Demaille  <akim@epita.fr>
+
+        When yydebug, report semantic and location values for reductions.
+        * data/glr.c (yy_reduce_print): Report the semantic values and the
+        locations.
+        (YY_REDUCE_PRINT): Adjust.
+        (yyglrReduce): Use them.
+        (b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
+        * data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
+        * tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
+        traces.
+
+2005-11-10  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
+        (yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
+        (yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
+
+2005-11-09  Albert Chin-A-Young  <china@thewrittenword.com>
+
+        * m4/cxx.m4, examples/Makefile.am: Don't build
+        examples/calc++ if no C++ compiler is available.  (trivial change)
+
+2005-11-09  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-skel.l: Use a couple of asserts.
+
+2005-11-03  Akim Demaille  <akim@epita.fr>
+
+        In some (weird) cases, the final state number is incorrect.
+        Reported by Alexandre Duret-Lutz.
+        * src/LR0.c (state_list_append): Remove the computation of
+        final_state.
+        (save_reductions): Do it here.
+        (get_state): Alpha conversion.
+        (generate_states): Use a for loop.
+        * src/gram.h (item_number_is_rule_number)
+        (item_number_is_symbol_number): New.
+        * src/state.c: Use assert.
+        * src/system.h: Include assert.h.
+        * tests/sets.at (Accept): New.
+
+2005-10-30  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+        * data/glr.c (yyfill): Adjust comment.
+        (yyresolveAction): Initialize default location properly
+        for empty right-hand sides.
+        (yydoAction): Ditto.
+        Add comment explaining apparently dead code.
+        * tests/glr-regression.at
+        (Incorrectly initialized location for empty right-hand side in GLR):
+        New test.
+
+2005-10-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (cleanup_gnulib): New function.  Use it to clean up
+        gnulib when interrupted.  This fixes some race conditions and
+        works around some portability problems (one noted by Paul
+        Hilfinger).
+
+2005-10-22  Akim  <akim@epita.fr>
+
+        * Makefile.cfg: Adjust to config -> build-aux.
+        Reported by twledo.
+
+2005-10-21  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
+        the %parse-params.
+        * data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
+        * data/yacc.c (b4_Pure_if): Rename as...
+        (b4_yacc_pure_if): this.
+        (YY_SYMBOL_PRINT, yyparse): Adjust.
+        * doc/bison.texinfo: Formatting changes.
+
+2005-10-21  Akim Demaille  <akim@epita.fr>
+
+        Finish the transition config -> build-aux.
+        * configure.ac, Makefile.am: Use build-aux.
+        * config/prev-version, config/announce-gen, config/Makefile.am:
+        Move to...
+        * build-aux/prev-version, build-aux/announce-gen,
+        * build-aux/Makefile.am: here.
+
+2005-10-14  Akim Demaille  <akim@epita.fr>
+
+        * examples/calc++/test: Use set -x only when VERBOSE.
+
+2005-10-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
+        * src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
+
+2005-10-13  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-skel.l: Output the base name parts of the parser and
+        header file names.
+        * tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
+        additional checks.
+        Use this to exercise C++ outputs in subdirs.
+        Reported by Oleg Smolsky.
+
+2005-10-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
+        __STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
+        Problem reported by John P. Hartmann.
+        * data/yacc.c (YYMODERN_C): Likewise.  Don't define if the user has
+        already defined it.
+
+2005-10-12  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (version_check): Exit 63 to please missing
+        (stands for "version mismatch).
+        * tests/input.at, doc/bison.texinfo: Adjust.
+
+2005-10-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Work around portability problems with Visual Age C compiler
+        (xlc and xlC_r) reported by John P. Hartmann.
+        * data/location.cc (initial_column, initial_line): Remove.
+        All uses replaced by 0 and 1.
+        * src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
+        that xlc complains about.
+        * src/scan-skel.l (skel_wrap): Likewise.
+        * data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
+        as __STDC__.
+        * data/yacc.c (YYMODERN_C): New macro, which also looks at
+        __STDC_VERSION__.  Use it everywhere instead of looking at
+        __STDC__ and __cplusplus.
+
+2005-10-10  Akim Demaille  <akim@epita.fr>
+
+        * examples/calc++/test: Be quiet unless VERBOSE.
+
+2005-10-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (yydestruct, yysymprint):
+        Use YYUSE instead of casting to void.
+        * data/glr.c (YYUSE): New macro.
+        (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
+        Use it instead of rolling our own.
+        (YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
+        (YYCHK1):
+        Use /*CONSTCOND*/ to suppress lint warnings.
+        * data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
+        (YY_STACK_PRINT): Use 'false' not '0'.
+        (YYUSE): New macro.
+        (yysymprint_, yydestruct_): Use it instead of rolling our own.
+        * data/yacc.c (YYUSE): New macro.
+        (YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
+        (YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
+        (yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
+
+
+        * data/m4sugar/m4sugar.m4 (_m4_map): New macro.
+        (m4_map, m4_map_sep): Use it.  Handle the empty list correctly.
+
+2005-10-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Undo the parts of the unlocked-I/O change that substituted
+        putc or puts for printf.  This might hurt performance a bit,
+        but some people prefer the printf style.
+        * data/c.m4 (yysymprint): Prefer printf to puts and putc.
+        * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
+        All uses replaced by YYFPRINTF and YYDPRINTF.
+        * data/yacc.c: Likewise.
+        * lib/bitset.c (bitset_print): Likewise.
+        * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
+        putc and puts.
+        * lib/lbitset.c (debug_lbitset): Likewise.
+        * src/closure.c (print_firsts, print_fderives): Likewise.
+        * src/gram.c (grammar_dump): Likewise.
+        * src/lalr.c (look_ahead_tokens_print): Likewise.
+        * src/output.c (escaped_output): Likewise.
+        (user_actions_output): Break apart two printfs.
+        * src/parse-gram.y (%printer): Prefer printf to putc and puts.
+        * src/reduce.c (reduce_print): Likewise.
+        * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
+        * src/system.h: Include unlocked-io.h rathe than stdio.h.
+
+        * data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
+        Use assignments rather than casts-to-void to suppress
+        unused-variable warnings.  This pacifies 'lint'.
+        * data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
+        unused-variable warnings.
+
+2005-10-03  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        * Makefile.am: DJGPP specific files added to EXTRA_DIST.
+
+2005-10-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Use unlocked I/O for a minor performance improvement on hosts like
+        GNU/Linux and Solaris that support unlocked I/O.  The basic idea
+        is to use the gnlib unlocked-io module, and to prefer putc and
+        puts to printf when either will work (since the latter doesn't
+        come in an unlocked flavor).
+        * bootstrap (gnulib_modules): Add unlocked-io.
+        * data/c.m4 (yysymprint): Prefer puts and putc to printf.
+        * data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
+        Prefer them to YYFPRINTF and YYDPRINTF if either will do,
+        and similarly for puts and putc and printf.
+        * data/yacc.c: Likewise.
+        * lib/bitset.c (bitset_print): Likewise.
+        * lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
+        * lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
+        to printf.
+        * lib/lbitset.c (debug_lbitset): Likewise.
+        * src/closure.c (print_firsts, print_fderives): Likewise.
+        * src/gram.c (grammar_dump): Likewise.
+        * src/lalr.c (look_ahead_tokens_print): Likewise.
+        * src/output.c (escaped_output): Likewise.
+        (user_actions_output): Coalesce two printfs.
+        * src/parse-gram.y (%printer): Prefer putc and puts to printf.
+        * src/reduce.c (reduce_print): Likewise.
+        * src/state.c (state_rule_look_ahead_tokens_print): Likewise.
+        * src/system.h: Include unlocked-io.h rather than stdio.h.
+
+        * data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
+        this confuses xgettext.
+
+2005-10-02  Akim Demaille  <akim@epita.fr>
+
+        * bootstrap (gnulib_modules): Add strverscmp.
+        * lib/.cvsignore: Add strverscmp.c, strverscmp.h.
+        * m4/.cvsignore: Add strverscmp.m4.
+        * src/parse-gram.y (%require): New token, new rule.
+        (version_check): New.
+        * src/scan-gram.l (%require): Adjust.
+        * tests/input.at (AT_REQUIRE): New.
+        Use it.
+        * doc/bison.texinfo (Require Decl): New.
+        (Calc++ Parser): Use %require.
+
+2005-10-02  Akim Demaille  <akim@epita.fr>
+
+        * data/location.cc: New.
+
+2005-10-02  Paul Eggert  <eggert@cs.ucla.edu>,
+            Akim Demaille  <akim@epita.fr>
+
+        Make sure -odir/foo.cc creates dir/location.hh etc.
+        * src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
+        (spec_file_prefix, spec_verbose_file, spec_graph_file)
+        (spec_defines_file): Now const.
+        (dir_prefix): New.
+        (short_base_name): Remove.
+        * src/files.c: Adjust.
+        (dirname.h): Include.
+        (base_name): Don't prototype it.
+        (finput): Remove, duplicates gram_in.
+        (full_base_name, short_base_name): Replace by...
+        (all_but_ext, all_but_tab_ext): these.
+        (compute_base_names): Rename as...
+        (compute_file_name_parts): this.
+        Update to compute the new variables, including dir_prefix.
+        Adjust dependencies.
+        * src/output.c (prepare): Output them.
+        * src/reader.c: Adjust to use gram_in, not finput.
+        * src/scan-skel.l (@dir_prefix@): New.
+
+2005-10-02  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
+
+        * lib/subpipe.c: New function end_of_output_subpipe() added
+        to allow support for non-posix systems. This is a no-op function
+        for posix systems.
+
+        * lib/subpipe.h: New function end_of_output_subpipe() added
+        to allow support for non-posix systems. This is a no-op function
+        for posix systems.
+
+        * src/output.c (output_skeleton): Use end_of_output_subpipe() to
+        handle the lack of pipe/fork functionality on non-posix systems.
+
+        * djgpp/Makefile.maint: DJGPP specific file.
+
+        * djgpp/README.in: DJGPP specific file.
+
+        * djgpp/config.bat: DJGPP specific configuration file.
+
+        * djgpp/config.sed: DJGPP specific configuration file.
+
+        * djgpp/config.site: DJGPP specific configuration file.
+
+        * djgpp/config_h.sed: DJGPP specific configuration file.
+
+        * djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
+
+        * djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
+
+2005-10-02  Akim Demaille  <akim@epita.fr>
+
+        * data/location.cc: New, extract from...
+        * data/lalr1.cc: here.
+        (location.hh): Include it after the user prologue, in case the
+        filename type is defined by the user.
+        Forward declation location and position before the pre-prologue.
+        (yyresult_): Rename as...
+        (yyresult): this, it's a local variable, not an attribute.
+        * data/Makefile.am (dist_pkgdata_DATA): Adjust.
+
+2005-10-01  Akim Demaille  <akim@epita.fr>
+
+        * examples/extexi: Restore the #line generation.
+
+2005-09-30  Akim Demaille  <akim@epita.fr>,
+            Alexandre Duret-Lutz <adl@gnu.org>
+
+        Move the token type and YYSTYPE in the parser class.
+        * data/lalr1.cc (stack.hh, location.hh): Include earlier.
+        (parser::token): New, from the moved free definition of tokens.
+        (parser::semantic_value): Now a full definition instead of an
+        indirection to YYSTYPE.
+        (b4_post_prologue): No longer included in the header file, but
+        in the implementation file.
+        * doc/bison.texi (C+ Language Interface): Update.
+        * src/parse-gram.y: Support unary %define.
+        * tests/actions.at: Define global_tokens_and_yystype for backward
+        compatibility until we update the tests.
+        * tests/calc.at: Idem.
+        (first_line, first_column, last_line, last_column): Define for lalr1.cc
+        to simplify the code.
+
+2005-09-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Port to SunOS 4.1.4, which lacks strtoul and strerror.
+        Ah, the good old days!  Problem reported by Peter Klein.
+        * bootstrap (gnulib_modules): Add strerror, strtoul.
+        * lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
+        * m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
+
+2005-09-29  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_error_verbose_if): New.
+        * data/lalr1.cc: Use it.
+        (YYERROR_VERBOSE_IF): Remove.
+        (yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
+        parser members, replaced by...
+        (yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
+        local variables.
+        (yysyntax_error_): Takes the state number as argument.
+        (yyreduce_print_): Use the argument yyrule, not the former
+        attribute yyn_.
+
+2005-09-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (gnulib_modules): Add verify.
+        * lib/.cvsignore: Add verify.h.
+        * src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
+        * src/system.h (verify): Remove.
+        Include verify.h instead.
+        * src/tables.c (tables_generate): Use new API for 'verify'.
+
+2005-09-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
+        local variables whose names begin with 'yy'.
+        * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
+        Trivial changes from Joel E. Denny.
+
+        * bootstrap (gnulib_modules): Remove alloca.  Bison doesn't need
+        it itself.
+        * src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
+        don't use alloca any more.
+
+        * data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
+        __BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
+        defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
+        * tests/torture.at (Exploding the Stack Size with Alloca): Adjust
+        to match yacc.c, to test more hosts.
+
+2005-09-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (YYSIZE_T): Reindent to make it clearer.  This
+        doesn't affect behavior.
+        (YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
+        Solaris, AIX, MSC.
+        (_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H.  All uses changed.
+        This works a bit better with glibc, if user code has already included
+        stdlib.h.
+        * doc/bison.texinfo (Bison Parser): Document that users can't
+        arbitrarily use malloc and free for other purposes.  Document
+        that <alloca.h> and <malloc.h> might be included.
+        (Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
+        user must declare alloca.
+
+        * HACKING (release): Forwarn the Translation Project about
+        stable releses.
+
+2005-09-20  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
+
+2005-09-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (YYSIZE_MAXIMUM): New macro.
+        (YYSTACK_ALLOC_MAXIMUM): Use it.
+        (yysyntax_error): New function.
+        (yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
+        multiple syntax errors are reported, and alloca is being used.
+        Instead, reallocate buffers twice as big each time, so that
+        we waste at most half the allocated memory.  Start with a small
+        (128-byte) buffer that will suffice in most cases anyway.
+        Use yysyntax_error to do most of the work.
+
+        * doc/bison.texinfo (Error Reporting, Table of Symbols):
+        yynerrs is the number of errors reported, not the number of
+        errors encountered.
+
+        * tests/glr-regression.at (Duplicated user destructor for lookahead):
+        Mark it as expected to fail.
+        Cast result of malloc; problem reported by twlevo@xs4all.nl.
+        * tests/actions.at, tests/calc.at, tests/glr-regression.at:
+        Don't start user-code symbols with "yy", to avoid name space problems.
+
+2005-09-19  Akim Demaille  <akim@epita.fr>
+
+        Remove the traits, failed experiment.
+        It never proved useful, and anyway because of the current
+        definition, it was not possible to have several specialization of
+        this traits, making it useless.
+        * data/lalr1.cc (yy:traits): Remove.
+        Inline its definitions in the parser class.
+
+2005-09-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
+        least Mac OSX with a /usr/local install of gettext.
+
+2005-09-19  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
+        and yytoken for similarity with the other skeletons.
+
+2005-09-19  Akim Demaille  <akim@epita.fr>
+
+        * NEWS, configure.ac: update version number to 2.1a.
+
+2005-09-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.1.
+
+        * NEWS: Remove notice of yytname change, since it was never in an
+        official release.
+        * data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
+        diagnostic.
+        * src/output.c (prepare): Likewise.
+        * data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
+        (yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
+        is not defined.  This is an awful hack, but it's enough for now.
+        All callers changed.
+        * tests/glr-regression-at (make_value): Args are const pointers now,
+        to avoid GCC warning.
+        (Duplicated user destructor for lookahead): New test.  Currently
+        skipped.  It fails on my host but I'm not sure it'll always fail.
+
+2005-09-16  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h (struct symbol): Declare the printer and destructor
+        as const, to avoid accidental calls to free.
+        (symbol_destructor_set, symbol_printer_set): Adjust.
+        * src/symtab.c: Adjust.
+
+2005-09-16  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_token_enums): New.
+        (b4_token_defines): Rename as...
+        (b4_token_enums_defines): this.
+        (b4_token_defines): New, output only the #defines.
+        * data/yacc.c, data/glr.c: Adjust.
+        * data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
+        * data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
+        as default values.
+
+2005-09-16  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yylex_): Remove, inline its code.
+        (yyreport_syntax_error_): Remove, replaced by...
+        (yysyntax_error_): this which returns a string and leaves to the
+        caller the call to the users' error function.
+        (yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
+        Move from members of the parser object...
+        (yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
+        to local variables of the parse function.
+
+2005-09-16  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
+        since it's in Bison's name space.
+
+2005-09-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyresolveValue): Add default case to pacify
+        gcc -Wswitch-default.  Problem reported by twlevo@xs4all.nl.
+
+        * NEWS: Document when yyparse started to return 2.
+        * doc/bison.texinfo (Parser Function): Document when yyparse
+        returns 2.
+
+        * data/lalr1.cc: Revert part of previous change, as it's incompatible.
+        (b4_filename_type): Renamed back from b4_file_name_type.  All uses
+        changed.
+        (class position): file_name -> filename (reverting).  All uses changed.
+
+2005-09-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
+        do anything if $@ exists.  This reverts part of the 2005-07-07
+        patch.
+
+2005-09-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
+        contains obsolete information and isn't worth distributing as a
+        separate file anyway.
+        * data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
+        (YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
+        All uses of jmp_buf, setjmp, longjmp changed to use these instead.
+        (yyparse): Abort if user code uses longjmp to throw an unexpected
+        value.
+
+2005-09-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/c.m4 (b4_identification): Define YYBISON_VERSION.
+        Suggested by twlevo@xs4all.nl.
+
+        * data/glr.c (YYCHK1): Do not assume YYE is in range.
+        This avoids a diagnostic from gcc -Wswitch-enum.
+        Problem reported by twlevo@xs4all.nl.
+
+        * doc/bison.texinfo: Don't use "filename", as per GNU coding
+        standards.  Use "file name" or "file" or "name", depending on
+        the context.
+        (Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
+        not to hack/foo.tab.c.
+        (Calc++ Top Level): 2nd arg of main is not const.
+        * data/glr.c: b4_filename -> b4_file_name.
+        * data/lalr1.cc: Likewise.  Also, b4_filename_type -> b4_file_name_type.
+        All uses changed.
+        (class position): filename -> file_name.  All uses changed.
+        * data/yacc.c: b4_filename -> b4_file_name.
+        * lib/bitset.h: filename -> file_name in local vars.
+        * lib/bitset_stats.c: Likewise.
+        * src/files.c: Likewise.
+        * src/scan-skel.l ("@output ".*\n): Likewise.
+        * src/files.c (file_name_split): Renamed from filename_split.
+        * src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
+
+2005-09-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
+        to accommodate latest gnulib.
+
+        * tests/glr-regression.at (Duplicate representation of merged trees):
+        Add casts to pacify g++.  Problem reported by twlevo@xs4all.nl.
+
+        * bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
+        needed.
+
+2005-08-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
+        All uses changed.  Invoke user destructor after an error during a
+        split parse (trivial change from Joel E. Denny).
+
+        * tests/glr-regression.at
+        (User destructor after an error during a split parse):  New test case.
+        Problem reported by Joel E. Denny in:
+        http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
+
+2005-08-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * README-cvs: Give URLs for recommended tools.
+        Mention Gzip version problem, and bootstrapping issues.
+        Remove troubleshooting section, as it's somewhat obsolete.
+
+        * bootstrap (no_cache): New var, to accommodate different wget
+        variants.  Use it instead of '-C off'.  Problem reported by
+        twlevo@xs4all.nl.
+
+        * data/glr.c (yydestroyStackItem): New function.
+        (yyrecoverSyntaxError, yyreturn): Use it to improve quality of
+        debugging information.  Problem reported by Joel E. Denny.
+
+2005-08-25  Akim Demaille  <akim@epita.fr>
+
+        * tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
+
+2005-08-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyrecoverSyntaxError, yyreturn):
+        Don't invoke destructor on unresolved entries.
+        * tests/glr-regression.at
+        (User destructor for unresolved GLR semantic value): New test case.
+        Problem reported by Joel E. Denny in:
+        http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
+
+2005-08-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
+        Add strnlen.c.
+        * m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
+        lib-prefix.m4, po.m4.
+
+        * data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
+        in yydestruct diagnostic, since it might not be an error.
+        Problem reported by Joel Denny near end of
+        <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
+        * data/lalr1.cc (yyerturn): Likewise.
+        * data/yacc.c (yyreturn): Likewise.
+        * tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
+
+        * src/files.c: Remove obsolete FIXME comment.
+
+        * data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
+        with the other templates, and to fix bogus run-on messages such
+        as the one reported at the end of
+        <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
+        All callers changed to avoid the newline.
+        (yyprocessOneStack): Output two lines rather than one, to accommodate
+        the above change.  This changes the debug output format slightly.
+
+        * data/glr.c (yyresolveValue): Fix redundant parse tree problem
+        reported by Joel E. Denny in
+        <http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
+        (trivial change).
+        * tests/glr-regression.at (Duplicate representation of merged trees):
+        New test, from Joel E. Denny in:
+        <http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
+        * THANKS: Add Joel E. Denny.
+
+        * configure.ac (AC_INIT): Bump to 2.0c.
+
+2005-07-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.0b.
+
+        * Makefile.am (SUBDIRS): Put examples before tests, so that
+        "make check" doesn't finish with "All 1 tests passed".
+
+        * tests/regression.at (Token definitions): Don't rely on
+        AT_PARSER_CHECK for data that contains backslashes.  It currently
+        uses 'echo', and 'echo' isn't portable if its argument contains
+        backslashes.  Problem found on OpenBSD 3.4.  Also, do not assume
+        that the byte '\0xff' is not printable in the C locale; it is,
+        under OpenBSD 3.4 (!).  Luckily, '\0x80' through '\0x9e' are
+        not printable, so use '\0x81' to test.
+
+        * data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
+        version of GCC, since the macro is used with non-GCC compilers.
+
+        Fix core dump reported by Pablo De Napoli in
+        <http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
+        * tests/regression.at (Invalid inputs with {}): New test.
+        * src/parse-gram.y (token_name): Translate type before using
+        it as an index.
+
+        * data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
+        the user's name space.  All uses changed to __attribute__
+        ((__unused__)).
+        (yyFail, yyMemoryExhausted, yyreportAmbiguity):
+        Add __attribute__ ((__noreturn__)).
+
+        * etc/clcommit: Remove.  We weren't using it, and it failed
+        "make maintainer-distcheck".
+        * Makefile.maint: Merge from coreutils.
+        (CVS_LIST, CVS_LIST_EXCEPT): New macros.
+        (syntax-check-rules): Change list of rules as described below.
+        (sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
+        (sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
+        (sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
+        (sc_trailing_space): New rules.
+        (sc_xalloc_h_in_src): Remove.
+        (sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
+        (sc_space_tab, sc_error_exit_success, sc_changelog):
+        (sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
+        (makefile-check, po-check, author_mark_check):
+        (makefile_path_separator_check, copyright-check):
+        Use grep -n, to make it easier to find violations.
+        Use CVS_LIST and CVS_LIST_EXCEPT.
+        (header_regexp, h_re): Remove.
+        (dd_c): New macro.
+        (sc_dd_max_sym_length, .re-list, news-date-check): New rules.
+        (my-distcheck): Use more-modern GCC flags.
+        (signatures, %.asc): Remove.
+        (rel-files, announcement): Remove signatures.
+        Restore old updating code, even though we don't use it, so
+        that we're the same as coreutils.
+        (alpha, beta, major): Depend on news-date-check.
+        Make the upload commands.
+
+        * data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
+        * lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
+        * lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
+        * lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
+        * src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
+        * src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
+        * src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
+        * tests/sets.at: Likewise.
+
+        * data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
+        we comment out the Autoconf version number.
+        * doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
+        it's error-prone and "make maintainer-distcheck" rejects it.
+
+        * lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
+        Indent calls to "error" to pacify "make maintainer-distcheck",
+        when the calls are not intended to be translated.
+        * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
+
+        * src/Makefile.am (DEFS): Use +=, to pacify
+        "make maintainer-distcheck".
+        (bison_SOURCES): Add scan-skel.h.
+        (sc_tight_scope): New rule, from coreutils.
+
+        * src/files.c (src_extension, header_extension):
+        Now static, not extern.
+        * src/getargs.c (short_options): Likewise.
+        * src/muscle_tab.c (muscle_table): Likewise.
+        * src/parse-gram.y (current_class, current_type, current_prec):
+        Likewise.
+        * src/reader.c (grammar_end, previous_rule_end): Likewise.
+        * src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
+        * src/main.c (main): Cast bindtextdomain and textdomain calls to
+        void, to avoid warning when NLS is disabled.
+        * src/output.c: Include scan-skel.h.
+        (scan_skel): Remove decl, since scan-skel.h does this.
+        (output_skeleton):
+        Indent calls to "error" to pacify "make maintainer-distcheck".
+        * src/print_graph.c: Don't include <obstack.h>, as system.h does this.
+        * src/reader.h (gram_end, gram_lineno): New decls to pacify
+        "make maintainer-distcheck".
+        * src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
+        (skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
+        (skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
+        (skel_lex_destroy, scan_skel): Move these decls to...
+        * src/scan-skel.h: New file.
+        * src/uniqstr.c (uniqstr_assert):
+        Indent calls to "error" to pacify "make maintainer-distcheck".
+
+        * tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
+        not @VAR@.
+
+        * tests/torture.at: Revamp to avoid misuse of atoi that
+        "make maintainer-distcheck" complained about.
+
+        * examples/extexi (message): Don't print a message more than once,
+        and omit line-number decoration that makes Emacs compile think
+        that informative messages are worth worrying about.
+
+2005-07-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * configure.ac: Update version number.
+
+        * Makefile.am (SUBDIRS): Add examples; somehow this got removed
+        accidentally.
+        * examples/calc++/calc++-parser.yy: Remove from CVS, as it's
+        autogenerated by the maintainer.
+        * examples/calc++/.cvsignore: Add *.yy.
+
+        * lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
+        * lib/bitset_stats.c (bitset_stats_init): Likewise.
+        * lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+        * po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
+
+        * src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
+        from maintainer-distcheck about casting the argument of 'free'.
+
+        * NEWS: Mention recent yytname changes.
+        * THANKS: Add Anthony Heading, twlevo@xs4all.nl.
+
+        * bootstrap: For translations that have not yet been upgraded to
+        the new runtime-po domain, prime the pump by extracting the
+        relevant strings from the obsolete translations.  This code can be
+        removed once the bison-runtime domain has been translated by each
+        team.
+
+        * src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
+        now that token names are already quoted.
+
+        Fix problem reported by Anthony Heading.
+        * data/glr.c (YYTOKEN_TABLE): New macro.
+        (yytname): Define if YYTOKEN_TABLE.
+        * data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
+        * data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
+        (YYERROR_VERBOSE): Define the same way the other skeletons do.
+        * src/output.c (prepare_symbols): Output token_table_flag.
+
+2005-07-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
+        again if the first call fails.
+
+        * data/glr.c (yytnamerr): New function.
+        (yyreportSyntaxError): Use it to dequote most string literals.
+        * data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
+        with other skeletons.  All uses changed.
+        (yytnameerr_): New function.
+        (yyreport_syntax_error): Use it to dequote most string literals.
+        * data/yacc.c (yytnamerr): New function.
+        (yyerrlab): Use it to decode most string literals.
+        * doc/bison.texinfo (Decl Summary, Calling Convention):
+        Clarify quoting convention of yytname.
+        * src/output.c (prepare_symbols): Quote all names.  This undoes
+        the 2005-04-17 change, which is now accomplished (mostly) via
+        changes in the parsers as described above.
+        * tests/regression.at (Token definitions, Web2c Actions):
+        Undo most 2005-04-17 change here, too.
+
+2005-07-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix more problems reported by twlevo@xs4all.nl.
+        * tests/cxx-type.at: Don't pipe output of ./types through sed to
+        remove trailing spaces.  This loses the exit status of ./types,
+        and isn't needed since ./types shouldn't be emitting trailing
+        spaces.
+        * data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
+        as the stack isn't valid in that case.
+
+        * src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
+        (gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
+        (gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
+        Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
+        is used.
+        * src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
+        (skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
+        (skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
+        Likewise.
+
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
+        overly-picky compilers that reject 'char *foo = "bar";'.
+
+        * src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
+        to FILE * parameter, not to stderr.  This fixes a typo introduced
+        in the 2005-07-12 change.
+
+        * lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
+        warnings from GCC 4.
+
+        * data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
+        (yyglrShiftDefer, yysplitStack):
+        Remove unused parameters b4_pure_formals.  All uses changed.
+        (yyglrShift): Remove unused parameters b4_user_formals.
+        All uses changed.
+        (yyglrReduce): Removed unused parameter yylocp.  All uses changed.
+
+2005-07-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Destructor cleanups and regularization among the three skeletons.
+        * NEWS: Document the behavior changes.
+        * data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
+        stack before failing, as the cleanup code will do it for us now.
+        * data/lalr1.cc (yyerrlab): Likewise.
+        * data/glr.c (yyparse): Pop everything off the stack before
+        freeing it, so that destructors get called properly.
+        * data/lalr1.cc (yyreturn): Likewise.
+        * data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
+        This is more consistent.
+        * doc/bison.texinfo (Destructor Decl): Mention more reasons
+        why destructors might be called.  1.875 -> 2.1.
+        (Destructor Decl, Decl Summary, Table of Symbols):
+        Some English-language cleanups for %destructor.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+        Add output line for destructor of start symbol.
+        * tests/calc.at (AT_CHECK_CALC): Add one to line counts,
+        because of that same extra output line.
+
+        * NEWS: Document minor wording changes in diagnostics of
+        Bison-generated parsers.
+        * data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
+        Remove unused formals.  All uses changed.
+        (yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
+        (yyparse): Rename yyoverflowlab to yyexhaustedlab.
+        * data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
+        Rename yyoverflowab to yyexhaustedlab.
+        When memory exhaustion occurs during syntax-error reporting,
+        report it separately rather than in a single diagnostic; this
+        eases translation.
+        * doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
+        (Memory Exhausted): Renamed from Parser Stack Overflow.
+        Revamp wording slightly to prefer "memory exhaustion".
+        * tests/actions.at: "parser stack overflow" -> "memory exhausted".
+
+        * data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
+
+        Add i18n support to the GLR skeleton.  Partially fix the C++
+        skeleton; a C++ expert needs to finish this.  Remove debugging
+        msgids; there's little point to having them translated, since they
+        can be understood only by someone who can read the
+        (English-language) source code.
+
+        Generate runtime-po/bison-runtime.pot automatically, so that we
+        don't have to worry about garbage getting in that file.  We'll
+        make sure after the next official release that old msgids don't
+        get lost.  See
+        <http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
+
+        * runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
+        Now auto-generated.
+        * PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
+        Fix typos in explanations of the runtime file.
+        * bootstrap: Change gettext keyword from YYI18N to YY_.
+        Use standard Makefile.in.in in runtime-po, since we'll arrange
+        for backward-compatible bison-runtime.po files in a different way.
+        * data/glr.c (YY_): New macro, from yacc.c.
+        (yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
+        Translate messages intended for users.
+        (yyreportSyntaxError): Change "virtual memory" to "memory" to match
+        the wording in the other skeletons.  We don't know that the memory
+        is virtual.
+        * data/lalr1.cc (YY_): Renamed from _.  All uses changed.
+        Use same method that yacc.c uses.
+        Don't translate debugging messages.
+        (yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
+        it doesn't work (yet), and requires C++ expertise to fix.
+        * data/yacc.c (YY_): Renamed from YY18N.  All uses changed.
+        Move defn to a more logical place, to be consistent with other
+        skeletons.
+        Don't translate debugging messages.
+        Don't assume line numbers fit in unsigned int; use unsigned long fmts.
+        * doc/bison.texinfo: Mention <libintl.h>.  Change glibc cross reference
+        to gettext cross reference.  Add indexing terms.  Mention YYENABLE_NLS.
+        * runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
+
+        Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
+        void, not int.
+        * tests/glr-regression.at (Badly Collapsed GLR States):
+        Likewise.
+        (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+        yylex should return 0 at EOF rather than aborting.
+
+        Improve tests for stack overflow in GLR parser.
+        Problem reported by twlevo@xs4all.nl.
+        * data/glr.c (struct yyGLRStack): Remove yyerrflag member.
+        All uses removed.
+        (yyStackOverflow): Just longjmp, but with value 2 so that caller
+        can handle the problem.
+        (YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
+        (yyparse): New local variable yyresult to record the result.
+        Use result of setjmp to set it, rather than storing itinto
+        struct.
+        (yyDone): Remove label.
+        (yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
+        to mimic yacc.c.  Do not discard lookahead if it's EOF (possible
+        if YYABORT is used).
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
+        yyparse status; put status > 1 into diagnostic.
+        Check that status==2 works.
+        * tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
+        Use exit status 3 for failure to open (which shouldn't happen).
+
+2005-07-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/conflicts.at (%nonassoc and eof):  Don't exit with status
+        1 on syntax error; just let yyparse do its thing.
+        * tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
+        * tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
+        (Exploding the Stack Size with Alloca):
+        (Exploding the Stack Size with Malloc):
+        Expect exit status 2, not 1, since the parser is supposed to blow
+        its stack.  Problem reported by twlevo@xs4all.nl.
+
+        * data/glr.c (yyparse): Don't assume that the initial calls
+        to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
+        Print a stack-overflow message and fail instead.
+        Initialize the line-number information before creating the stack,
+        so that the stack-overflow message can report line zero safely.
+
+2005-07-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix problems reported by twlevo@xs4all.nl.
+        * data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
+        (yyuserMerge): Provide a default case if b4_mergers is empty.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
+        * tests/glr-regression.at
+        (Improper handling of embedded actions and dollar(-N) in GLR parsers):
+        Add casts to pacify C++ compilers.
+        * tests/glr-regression.at (Improper merging of GLR delayed action
+        sets): Declare yylex before using it.
+        * tests/Makefile.am (maintainer-check-g++): Fix a stray
+        $(GXX) that escaped the renaming of GXX to CXX.  Remove bogus
+        test for valgrind; valgrind is independent of g++.
+        (maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
+        for compatibility with POSIX 1003.1-2001 (if running coreutils).
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
+        Use a destructor, so that we can expand the stack.  Change
+        YYSTYPE to char * so that we can free it.  Cast result of malloc.
+
+2005-07-13  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
+
+        * data/glr.c (yyuserAction): Fix uninitialized variable that caused
+        a valgrind failure.  Problem reported by twlevo@xs4all.nl.
+
+2005-07-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * PACKAGING: New file, suggested by Bruno Haible and taken from
+        similar wording in gettext's PACKAGING file.
+        * NEWS: Mention PACKAGING.
+        * Makefile.am (EXTRA_DIST): Add PACKAGING.
+
+2005-07-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Document recent i18n improvements.
+        * bootstrap: Get runtime translations into runtime-po.
+        Create runtime-po files automatically, if possible.
+        * configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
+        * data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
+        does not infringe on the user's name space.
+        (YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
+        * doc/bison.texinfo (Internationalization): Revamp the English
+        and Texinfo syntax a bit, to try to make it clearer.
+        (Bison Options, Option Cross Key): Mention --print-localedir.
+        * m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
+        YYENABLE_NLS.  Quote a bit more.
+        * runtime-po/.cvsignore: New file.
+        * runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
+        * runtime-po/Rules-quot: Remove; now created by bootstrap.
+        * runtime-po/quot.sed: Likewise.
+        * runtime-po/boldquot.sed: Likewise.
+        * runtime-po/en@quot.header: Likewise.
+        * runtime-po/en@boldquot.header: Likewise.
+        * runtime-po/insert-header.sin: Likewise.
+        * runtime-po/remove-potcdate.sin: Likewise.
+        * runtime-po/Makevars: Likewise.
+        * runtime-po/LINGUAS: Likewise.
+        * runtime-po/de.po: Likewise; we will rely on the translation project
+        to maintain this, so "bootstrap" should get it.
+        * src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
+        its value.
+        * src/main.c (main): Bind the bison-runtime domain, too.
+
+2005-07-12  Bruno Haible  <bruno@clisp.org>
+
+        * data/yacc.c: Include <libintl.h> when NLS is enabled.
+        (YYI18N): Renamed from _. Use dgettext when NLS is enabled.
+        * po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
+        * runtime-po: New directory.
+        * runtime-po/Makefile.in.in: New file, copied from po/, with modified
+        $(DOMAIN).pot-update rule, so that old messages are never dropped.
+        * runtime-po/Rules-quot: New file, copied from po/.
+        * runtime-po/quot.sed: Likewise.
+        * runtime-po/boldquot.sed: Likewise.
+        * runtime-po/en@quot.header: Likewise.
+        * runtime-po/en@boldquot.header: Likewise.
+        * runtime-po/insert-header.sin: Likewise.
+        * runtime-po/remove-potcdate.sin: Likewise.
+        * runtime-po/Makevars: New file.
+        * runtime-po/POTFILES.in: New file.
+        * runtime-po/LINGUAS: New file.
+        * runtime-po/bison-runtime.pot: New file.
+        * runtime-po/de.po: New file.
+        * m4/bison.m4: New file.
+        * Makefile.am (SUBDIRS): Add runtime-po.
+        (aclocaldir, aclocal_DATA): New variables.
+        * configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
+        Define aclocaldir.
+        * src/getargs.c (usage): Document --print-localedir option.
+        (PRINT_LOCALEDIR_OPTION): New enum item.
+        (long_options): Add --print-localedir option.
+        (getargs): Handle --print-localedir option.
+        * doc/bison.texinfo (Bison Parser): Remove paragraph about _().
+        (Internationalization): New section.
+
+2005-07-12  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
+        for consistency with the rest of the code.
+        * src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
+        Add separators.
+
+2005-07-12  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y: Use %printer instead of YYPRINT.
+
+2005-07-12  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_print): New.
+        * src/symlist.h, src/symlist.c (symbol_list_print): New.
+        * src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
+
+2005-07-12  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (b4_syncline): Fix (swap) the definitions of
+        b4_at_dollar and b4_dollar_dollar.
+
+2005-07-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
+        and Pennello's paper.
+
+2005-07-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (yyparse): Undo previous patch.  Instead,
+        set yylsp[0] and yyvsp[0] only if the initial action
+        sets yylloc and yylval, respectively.
+
+        * data/yacc.c (yyparse): In the initial action, set
+        yylsp[0] and yyvsp[0] rather than yylloc and yylval.
+        This avoids the use of undefined variables if the initial
+        action does not set yylloc and/or yylval.
+
+2005-07-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
+        * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
+        Remove from CVS.  These files are automatically generated.
+        * examples/extexi: Clarify that this file is now part of Bison,
+        not GNU M4, and that it works with any POSIX-compatible Awk.
+        * examples/calc++/Makefile.am (run_extexi): Remove; not used.
+        ($(calc_extracted)): Renamed from $(calc_sources_extracted),
+        so that we also get calc++-parser.yy.  Geneate it.
+        Use $(AWK), not gawk, since any conforming Awk will do.
+        Put comment before action, since older 'make' can't handle comment
+        in action.
+        $(BUILT_SOURCES): List all built sources, not just some of them.
+        $(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
+        $($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
+        $($(calc_sources_generated)): Remove unnecessary test for existence
+        of target.  (This had a shell syntax error anyway; a stray "x".)
+        (calc_extracted): List $(srcdir)/calc++-parser.yy, not
+        calc++-parser.yy.
+        * examples/.cvsignore, examples/calc++/.cvsignore: New files.
+
+        * bootstrap (gnulib_modules): Add gettext, now that it's no longer
+        implied by the other modules.
+
+2005-07-06  Akim Demaille  <akim@epita.fr>
+
+        Bind examples/calc++ to the package.
+        * examples/calc++/Makefile: Remove, replaced by...
+        * examples/calc++/Makefile.am: ... this new file.
+        * examples/calc++/test: Remove input.
+        * examples/calc++/compile: Remove.
+        * examples/Makefile.am: New.
+        * configure.ac, Makefile.am: Adjust.
+        * doc/Makefile.am (clean-local): New, for more recent texi2dvis.
+
+2005-07-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyFail): Drastically simplify; since the format argument
+        never had any % directives, we can simply pass it to yyerror.
+        (yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
+        be modified later, as that is the usual style in glr.c.
+        Problems reported by Paul Hilfinger.
+
+        Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
+        and size overflow errors.
+        * data/glr.c: Include <stdio.h> etc. after user prolog, not before,
+        in case the user prolog sets feature-test macros like _GNU_SOURCE.
+        (YYSIZEMAX): New macro.
+        (yystpcpy): New function, taken from yacc.c.
+        (struct yyGLRStack.yyspaceLeft): Now size_t, not int.
+        (yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
+        so that we don't have to maintain their signatures.
+        (yyFail): Check for buffer overflow, by using vsnprintf rather
+        than vsprintf.  Allocate a bigger buffer if possible.
+        Report an error if buffer allocation fails.
+        (yyStackOverflow): New function.
+        (yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
+        the initialization was successful.  It might fail if storage was
+        exhausted.
+        (yyexpandGLRStack): Add more checks for storage allocation failure.
+        Use yyStackOverflow to report failures.
+        (yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
+        (yysplitStack, yyprocessOneStack, yyparse, yypstack):
+        Don't assume stack number fits in int.
+        (yysplitStack): Check for storage allocation failure.
+        (yysplitStack, yyprocessOneStack): Add pure_formals, so that we
+        can print diagnostics on storage allocation failure.  All callers
+        changed.
+        (yyresolveValue): Use yybool for boolean.
+        (yyreportSyntaxError): Check for size-calculation overflow.
+        This code is taken from yacc.c.
+        (yyparse): Check for storage allocation errors when allocating
+        the initial stack.
+
+2005-07-05  Akim Demaille  <akim@epita.fr>
+
+        Extract calc++ from the documentation.
+        * doc/bison.texinfo (Calc++): Add the extraction marks.
+        * examples/extexi: New, from the aborted GNU Programming 2E.
+        Separate the different paragraph of a file with empty lines.
+        * examples/Makefile: Use it to extract the whole calc++ example.
+
+2005-06-24  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (C++ Parser Interface): Use defcv to define
+        class typedefs.
+
+2005-06-22  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (C++ Language Interface): First stab.
+        (C++ Parsers): Remove.
+
+2005-06-22  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yylex_): Honor %lex-param.
+
+2005-06-22  Akim Demaille  <akim@epita.fr>
+
+        Start a set of simple examples.
+        * examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
+        * examples/calc++/calc++-driver.hh,
+        * examples/calc++/calc++-parser.yy,
+        * examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
+        * examples/calc++/compile, examples/calc++/test: New.
+
+2005-06-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
+        extern "C" {}.  This fixes a problem reported by Paul Hilfinger,
+        which stems from the 2005-05-27 patch.
+
+2005-06-06  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+        * data/glr.c: Modify treatment of unused parameters to permit use
+        of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
+
+2005-05-30  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix infringement on user name space reported by Janos Zoltan Szabo.
+        * data/yacc.c (yyparse): strlen -> yystrlen.
+
+2005-05-30  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (_): New.
+        Translate the various messages.
+
+2005-05-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix infringement on user name space reported by Bruno Haible.
+        * data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
+        Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
+        the user's name space.
+        (alloca): Include <stdlib.h> to get it, if it's not built in.
+        (YYMALLOC, YYFREE): Define only if needed.
+        (malloc, free): Declare, but only if needed, as this infringes on
+        the user name space.
+
+2005-05-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
+        * lib/bitset.c (bitset_print): Don't assume size_t can be printed
+        with %d format.
+        * lib/ebitset.c (min, max): Undef before defining.
+        * lib/vbitset.c (min, max): Likewise.
+        * lib/subpipe.c (create_subpipe): Save local variables in case
+        vfork clobbers them.
+
+2005-05-24  Bruno Haible  <bruno@clisp.org>
+
+        * tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
+        error message syntax used by gcc-4.0.
+
+2005-05-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * README: Mention m4 1.4.3.  Remove obsolete advice about
+        Sun Forte Developer 6 update 2, VMS, and MS-DOS.
+
+        * bootstrap: Remove workaround for problem I encountered with
+        gettext 0.14.1; it seems to be fixed now.
+
+2005-05-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.0a.
+
+        * src/files.c: Include "stdio-safer.h"; this fixes a typo in
+        the previous change.
+
+        Various maintainer cleanups.
+        * .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
+        conftest*, for benefit of CVS commands run at the same time as
+        "configure".  Add build-aux, since "bootstrap" now creates it and
+        its subfiles.
+        * Makefile.cfg (move_if_change): Remove.
+        * Makefile.maint: Remove the update stuff; we now use "bootstrap".
+        (ftp-gnu, www-gnu, move_if_change, local_updates, update):
+        (po_repo, do-po-update, po-update, wget_files, get-targets):
+        (config.guess-url_prefix, config.sub-url_prefix):
+        (ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
+        (standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
+        ($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
+        Remove.
+        * configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
+        this is now the recommended name.
+        * config/.cvsignore: Remove config.guess, config.rpath, config.sub,
+        depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
+        ylwrap.  These files now go into build-aux.
+        * config/move-if-change: Remove.
+        * config/prev-version.txt: Bump from 1.75 to 2.0.
+
+        * bootstrap: Add stdio-safer, unistd-safer modules.
+        Remove m4/glibc2.m4 (introduced by latest gnulib, but
+        we don't need it).
+        * lib/.cvsignore: Add dup-safer.c, fd-safer.c,
+        fopen-safer.c, stdio-safer.h, unistd-safer.h.
+        * lib/subpipe.c: Include "unistd-safer.h".
+        (create_subpipe): Make sure all the newly-created
+        file descriptors are > 2, so that diagnostics don't
+        get sent down them (which might cause Bison to hang, in theory).
+        * m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
+        * src/files.c (xfopen): Use fopen_safer, not fopen.
+
+        * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
+        yesterday's yacc.c fix.
+
+2005-05-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c, data/lalr1.cc: Update copyright date.
+
+        Fix a destructor bug reported by Wolfgang Spraul in
+        <http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
+        * data/yacc.c (yyabortlab): Don't call destructor, and
+        don't set yychar to EMPTY.
+        (yyoverflowlab): Don't call destructor.
+        (yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
+        * tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
+        since we no longer output the message "discarding lookahead token
+        end of input ()".
+
+2005-05-20  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
+
+        * data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
+        fix a small glitch in debugging output.
+        (yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
+        after YY_SYMBOL_PRINT where needed.
+
+        (struct yyGLRState): Add some comments.
+        (struct yySemanticOption): Add some comments.
+        (union yyGLRStackItem): Add comment.
+
+        (yymergeOptionSets): Correct this to properly perform the union,
+        avoiding infinite reported by Michael Rosien.
+        Update comment.
+
+        * tests/glr-regression.at: Add test for GLR merging error reported
+        by M. Rosien.
+
+2005-05-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
+        Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
+        README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
+        data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
+        data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
+        doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
+        lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
+        lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
+        lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
+        lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
+        lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
+        lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
+        lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
+        lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
+        m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
+        src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
+        src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
+        src/derives.h, src/files.c, src/files.h, src/getargs.c,
+        src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
+        src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
+        src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
+        src/output.h, src/parse-gram.c, src/parse-gram.h,
+        src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
+        src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
+        src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
+        src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
+        src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
+        src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
+        src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
+        tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
+        tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
+        tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
+        tests/reduce.at, tests/regression.at, tests/sets.at,
+        tests/synclines.at, tests/testsuite.at, tests/torture.at:
+        Update FSF postal mail address.
+
+2005-05-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
+        Problem reported by Ralf Menzel.
+
+2005-05-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/actions.at: Test that stack overflow invokes destructors.
+        From Marcus Holland-Moritz.
+        * data/yacc.c (yyerrlab): Move the code that destroys the stack
+        from here....
+        (yyreturn): to here.  That way, destructors are called properly
+        even if the stack overflows, or the user calls YYACCEPT or
+        YYABORT.  Stack-overflow problem reported by Marcus Holland-Moritz.
+        (yyoverflowlab): Destroy the lookahead.
+
+2005-04-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
+
+2005-04-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Bison-generated C parsers no longer quote literal strings
+        associated with tokens.
+        * src/output.c (prepare_symbols): Don't escape strings,
+        since users don't want to see C escapes.
+        * tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
+        in diagnostics.
+        * tests/input.at (Torturing the Scanner): Likewise.
+        * tests/regression.at (Token definitions, Web2c Actions): Likewise.
+
+2005-04-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
+        the data size is known to be too small and we can't increase it.
+        This works around an HP-UX 11.00 glitch reported by Andrew Benham.
+
+2005-04-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/parse-gram.y: Include quotearg.h.
+        (string_as_id): Quote $1 before using it as a key, since the
+        lexer no longer quotes it for us.
+        (string_content): Don't strip quotes, since lexer no longer
+        quotes it for us.
+        * src/scan-gram.l: Include quotearg.h.
+        ("\""): Omit quote.
+        ("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
+        a key, since the rest of the lexer doesn't quote it.
+        * src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
+        * tests/regression.at (Token definitions): Check for backslashes
+        in token strings.
+
+        * data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
+        (YYSIZE_T): Define to unsigned long int when using an older compiler.
+        (yyparse): Revamp code to generate long syntax error message, to
+        make it easier to translate, and to avoid problems with arithmetic
+        overflow.  Change "virtual memory" to "memory" in diagnostic, since
+        we don't know whether the memory is virtual.
+
+2005-04-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Bison-generated C parsers now use the _ macro to
+        translate strings.
+        * data/yacc.c (_) [!defined _]: New macro.
+        All English strings wrapped inside this macro.
+        * doc/bison.texinfo (Bison Parser): Document _.
+        * po/POTFILES.in: Include src/parse-gram.c, since it now
+        includes translateable strings that parse-gram.y doesn't.
+
+2005-04-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/symtab.c (symbol_make_alias): Call symbol_type_set,
+        reverting the 2004-10-11 change to this function.
+        (symbol_check_alias_consistency): Don't call symbol_type_set
+        if the type name is already correct.
+        * tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
+
+2005-03-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/regression.at (Token definitions): Don't use a token named
+        c, as that generates a "#define c ..." that runs afoul of buggy
+        stdlib.h that uses the identifier c as a member of struct
+        drand48_data.  Problem reported by Horst Wente.
+
+2005-03-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap: Change translation URL from
+        http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
+        http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
+        redirection glitches.  Problem reported by twlevo@xs4all.nl.
+
+2005-03-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
+        after operands; POSIX says this isn't portable for the c99 command.
+
+2005-03-18  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/glr-regression.at (glr-regr2a.y): Try to dump core
+        immediately if a data overrun has occurred; this may help us track
+        down what may be a spurious failure on MacOS.
+
+2005-03-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Respond to problems reported by twlevo@xs4all.nl.
+
+        * bootstrap: Use "trap - 0" rather than the unportable "trap 0".
+
+        * src/vcg.h: Comment fix.
+        * src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
+        (G_CMAX): Change to -1 instead of INT_MAX.
+
+        * data/yacc.c (yyparse): Omit spaces before #line.
+
+2005-03-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/tables.c (state_number_to_vector_number): Put it inside an
+        "#if 0", since it's not currently used.  Problem reported by
+        Roland McGrath.
+
+2005-03-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/output.c (escaped_output): Renamed from
+        escaped_file_name_output, since we now use it for symbol tags as
+        well.  All uses changed.
+        (symbol_destructors_output, symbol_printers_output):
+        Escape symbol tags too.
+        Problem reported by Matyas Forstner in
+        <http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
+
+        * src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
+        not needed.
+        * src/output.c (user_actions_output, token_definitions_output,
+        symbol_destructors_output, symbol_printers_output): Likewise.
+        * src/reader.c (prologue_augment): Likewise.
+        * src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
+
+        * src/vcg.c (output_edge): Don't quote linestyle arg.
+        Problem reported by twlevo@xs4all.nl.
+
+2005-02-28  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
+        example, reported by Derek M Jones.  Also, make the example even
+        more outrageous, to better illustrate how bad the problem is.
+
+2005-02-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
+        putsym.  Typo reported by Sebastian Piping.
+
+2005-02-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Language and Grammar): some -> same
+        (Epilogue): int he -> in the
+        Typos reported by Sebastian Piping via Justin Pence.
+
+2005-02-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/glr-regression.at (Improper handling of embedded actions
+        and dollar(-N) in GLR parsers): Renamed from "Improper handling of
+        embedded actions and $-N in GLR parsers", work around an Autoconf bug
+        with dollar signs in test names.
+        * tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
+        for a similar reason.
+
+2005-01-28  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
+        wants to redefine G_VIEW.
+
+2005-01-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/vcg.c (get_view_str): Remove case for normal_view.
+        Problem reported by twlevo@xs4all.nl.
+
+2005-01-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
+        Problem reported by twlevo@xs4all.nl.
+
+        * doc/bison.texinfo: Change @dircategory from "GNU programming
+        tools" to "Software development".  Requested by Richard Stallman
+        via Karl Berry.
+
+2005-01-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
+        Problem reported by twlevo@xs4all.nl.
+
+2005-01-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
+        keyword; it's not needed with modern compilers, and it doesn't
+        affect correctness with older compilers.  Suggested by
+        twlevo@xs4all.nl.
+
+2005-01-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyuserAction): Add "default: break;" case to pacify
+        gcc -Wswitch-default.
+        * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
+        * data/yacc.c (yyparse): Likewise.
+
+2005-01-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
+        already.  Let config.h define any nonstandard values.
+
+2005-01-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
+        for the benefit of slower hosts.  Problem reported by
+        Nelson H. F. Beebe.
+
+2005-01-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
+        being defined and not used.
+        * data/lalr1.cc (yyparse): Likewise.
+        Use "if (false)" rather than "if (0)".
+
+2005-01-05  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * TODO: Mention that we should allow NUL bytes in tokens.
+
+2005-01-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/scan-skel.l (<<EOF>>): Don't close standard output.
+        Problem reported by Hans Aberg.
+
+2005-01-01  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/getargs.c (version): Happy new year; update overall
+        program copyright date from 2004 to 2005.
+
+        * src/scan-skel.l ("@output ".*\n): Don't close standard output.
+        Problem reported by Hans Aberg.
+        * tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
+        (Output file names.): Add a test for the case when standard output
+        is closed.
+
+2004-12-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (@copying): Update FDL version number to 1.2,
+        to fix an oversight in the Bison 2.0 manual.
+
+2004-12-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 2.0.  Reformat the existing news items since
+        1.875, so that related items are grouped together.
+        * configure.ac (AC_INIT): Bump version to 2.0.
+        * src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
+
+        * tests/torture.at (Exploding the Stack Size with Alloca): Set
+        YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
+        otherwise, we're not testing alloca.  Unfortunately there's no
+        simple way to consult HAVE_ALLOCA here.
+
+        * data/lalr1.cc (yydestruct_): Pacify unused variable warning
+        for yymsg, too.
+
+        * src/LR0.c (new_itemsets): Use memset rather than zeroing by
+        hand.  This avoids a warning about comparing int to size_t when
+        GCC warnings are enabled.
+
+2004-12-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Bison-generated parsers no longer default to using the
+        alloca function (when available) to extend the parser stack, due
+        to widespread problems in unchecked stack-overflow detection.
+        * data/glr.c (YYMAXDEPTH): Remove undef when zero.  It's the user's
+        responsibility to set it to a positive value.  This lets the user
+        specify a value that is not a preprocessor constant.
+        * data/yacc.c (YYMAXDEPTH): Likewise.
+        (YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
+        * doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
+        to be a compile-time constant.  However, explain the constraints on it.
+        Also, explain the constraints on YYINITDEPTH.
+        (Table of Symbols): Explain that alloca is no longer the default.
+        Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
+        to 1.
+
+        * doc/bison.texinfo (Location Default Action): Mention that n must
+        be zero when k is zero.  Suggested by Frank Heckenbach.
+
+2004-12-22  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
+        (parser::state_type, parser::semantic_type, parser::location_type):
+        Private, not public.
+        (parser::parse): Return ints, not bool.
+        Returning a bool introduces a problem: 0 corresponds to false, and
+        it seems weird to return false on success.  Returning true changes
+        the conventions for yyparse.
+        Alternatively we could return void and send an exception.
+        There is no clear consensus (yet?).
+        (state_stack, semantic_stack, location_stack): Rename as...
+        (state_stack_type, semantic_stack_type, location_stack_type): these.
+        Private, not public.
+        * tests/c++.at: New.
+        * tests/testsuite.at, tests/Makefile.am: Adjust.
+
+2004-12-21  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (parser::parse): Return a bool instead of an int.
+
+2004-12-21  Akim Demaille  <akim@epita.fr>
+
+        Don't impose std::string for filenames.
+
+        * data/lalr1.cc (b4_filename_type): New.
+        (position::filename): Use it.
+        (parser.hh): Move the inclusion of stack.hh and location.hh below
+        the user code, so that needed headers for the filename type can be
+        included first.
+        Forward declare them before the user code.
+        * tests/Makefile.am (check-local, installcheck-local): Pass
+        TESTSUITEFLAGS to the TESTSUITE.
+
+2004-12-20  Akim Demaille  <akim@epita.fr>
+
+        Use more STL like names: my_class instead of MyClass.
+
+        * data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
+        (SemanticStack, SemanticType, StateStack, StateType)
+        (TokenNumberType, Stack, Slice, Traits, Parser::location)
+        (Parser::value): Rename as...
+        (location_stack, location_type, rhs_number_type, semantic_stack)
+        (semantic_type, state_stack, state_type, token_number_type, stack)
+        (slice, traits, parser::yylloc, parser::yylval): these.
+
+        * tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
+
+2004-12-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
+        * data/yacc.c (YYLLOC_DEFAULT): Likewise.
+
+2004-12-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Remove uses of 'short int' and 'unsigned short int'.  This raises
+        some arbitrary limits.  It uses more memory but nowadays that's
+        not much of an issue.
+
+        This change does not affect the generated parsers; that's a different
+        task, as some users will want to conserve memory there.
+
+        Ideally we should use size_t to represent all object counts, and
+        something like ptrdiff_t to represent signed differences of object
+        counts; but that will require more code-cleanup than I have the
+        time to do right now.
+
+        * src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
+        Use size_t, not int or short int, to count objects.
+        * src/closure.c (nritemset, closure): Likewise.
+        * src/closure.h (nritemset, closure): Likewise.
+        * src/nullable.c (nullable_compute): Likewise.
+        * src/print.c (print_core): Likewise.
+        * src/print_graph.c (print_core): Likewise.
+        * src/state.c (state_compare, state_hash): Likewise.
+        * src/state.h (struct state): Likewise.
+        * src/tables.c (default_goto, goto_actions): Likewise.
+
+        * src/gram.h (rule_number, rule): Use int, not short int.
+        * src/output.c (prepare_rules): Likewise.
+        * src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
+        errs, reductions): Likewise.
+        * src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
+        Likewise.
+        * src/tables.c (vector_number, tally, action_number,
+        ACTION_NUMBER_MINIMUM): Likewise.
+        * src/output.c (muscle_insert_short_int_table): Remove.
+
+2004-12-17  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Extensive Doxygenation.
+        (error_): Rename as...
+        (error): this, since it is visible to the user.
+        Adjust callers.
+        (Parser::message): Now an automatic variable from...
+        (Parser::yyreport_syntax_error_): here.
+        * tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
+        Parser::error.
+        * tests/input.at: Escape $.
+
+2004-12-16  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
+        Parenthesize rhs to avoid obscure problems with mistakes like
+        "foo$$bar = foo$1bar;".  Problem reported by twlevo at xs4all.
+        * data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
+        b4_rhs_location): Likewise.
+        * data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
+        b4_rhs_location): Likewise.
+
+2004-12-16  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
+        yacc.c: be sure to stay within yycheck_.
+        * tests/actions.at: Re-enable C++ tests.
+
+2004-12-16  Akim Demaille  <akim@epita.fr>
+
+        * src/print_graph.c (print_graph): Remove layoutalgorithm uses for
+        real.
+
+2004-12-16  Akim Demaille  <akim@epita.fr>
+
+        Use #define to handle the %name-prefix.
+
+        * data/glr.c, data/yacc.c: Comment changes.
+        * data/lalr1.cc (yylex): Use #define to select the name of yylex,
+        so that one can refer to yylex in the parser file, and have it
+        renamed, as is the case with other skeletons.
+
+2004-12-16  Akim Demaille  <akim@epita.fr>
+
+        Move lalr1.cc internals into yy*.
+
+        * data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
+        (semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
+        (pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
+        (name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
+        (empty_, final_, terror_, errcode_, ntokens_)
+        (user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
+        (looka_, ilooka_, error_range_, nerrs_):
+        Rename as...
+        (yysemantic_stack_, yylocation_stack_, yystate_stack_)
+        (yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
+        (yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
+        (yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
+        (yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
+        (yyfinal_, yyterror_, yyerrcode_, yyntokens_)
+        (yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
+        (yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
+        these.
+
+2004-12-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix some problems reported by twlevo at xs4all.
+        * src/symtab.c (symbol_new): Report an error if the input grammar
+        contains too many symbols.  This is better than calling abort() later.
+        * src/vcg.h (enum layoutalgorithm): Remove.  All uses removed.
+        (struct node, struct graph):
+        Rename member expand to stretch.  All uses changed.
+        (struct graph): Remove member layoutalgorithm.  All uses removed.
+        * src/vcg.c (get_layoutalgorithm_str): Remove.  All uses removed.
+        * src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
+        All uses changed.
+        (N_STRETCH): Rename from N_EXPAND.  All uses changed.
+
+2004-12-15  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Normalize /** \brief ... */ to ///.
+        Add more Doxygen comments.
+        (symprint_, stack_print_, reduce_print_, destruct_, pop)
+        (report_syntax_error_, translate_): Rename as...
+        (yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
+        (yypop_, yyreport_syntax_error_, yytranslate_): this.
+
+2004-12-15  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (lex_): Rename as...
+        (yylex_): this.
+        Move the trace here.
+        Take the %name-prefix into account.
+        Reported by Alexandre Duret-Lutz.
+
+2004-12-15  Akim Demaille  <akim@epita.fr>
+
+        Simplify the C++ parser constructor.
+
+        * data/lalr1.cc (debug_): Rename as...
+        (yydebug_): so that the parser's internals are always in the yy*
+        pseudo namespace.
+        Adjust uses.
+        (b4_parse_param_decl): Remove the leading comma as it is now only
+        called as unique argument list.
+        (Parser::Parser): Remove the constructor accepting a location and
+        an initial debugging level.
+        Remove from the other ctor the argument for the debugging level.
+        (debug_level_type, debug_level, set_debug_level): New.
+
+        * tests/actions.at, tests/calc.at, tests/regression.at: Adjust
+        constructor calls.
+
+2004-12-15  Akim Demaille  <akim@epita.fr>
+
+        Remove b4_root related material: failure experiment
+        (which goal was to allow to derive from a class).
+
+        * data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
+        definitions and uses.
+
+2004-12-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
+        not 2, since it's not portable to subtract 1 from the start of an
+        array.  The new item 0 is never set or used.  All uses changed.
+
+        (yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
+        the default definition of YYLLOC_DEFAULT.  Problem reported
+        by Frank Heckenbach.
+
+2004-12-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (YYRHSLOC): Don't have two definitions, one for
+        the normal case and one for the error case.  Just use the
+        first one uniformly.  Problem reported by Frank Heckenbach.
+        (YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
+        use exactly the same macro in both places.
+        (yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
+        so that the normal-case YYRHSLOC works for the error case too.
+        All uses changed.
+        * data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
+        (YYLLOC_DEFAULT): Use the same macro as glr.c.
+        * doc/bison.texinfo (Location Default Action): Don't claim that
+        we have an array of locations.  Use the same macro for both glr
+        and lalr parsers.  Mention YYRHSLOC.  Mention what happens when
+        the index is 0.
+
+2004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * HACKING: Update email addresses to send announcements to.
+
+        * configure.ac (AC_INIT): Bump version to 1.875f.
+
+2004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 1.875e.
+        * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
+
+        * src/scan-skel.l: Include "complain.h", for "fatal".
+
+        * src/relation.h (relation_print, relation_digraph):
+        Relation sizes are of type relation_node, not size_t (this is
+        merely a doc fix, since the two types are equivalent).
+        (relation_transpose): Relation sizes are of type relation_node,
+        not int.
+        * src/relation.c: Likewise.
+        (top, infinity): Now of type relation_node, not int.
+        (traverse, relation_transpose): Use relation_node, not int.
+
+        * data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
+        with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
+        (yyparse): Remove unused local introduced in 2004-10-25 patch.
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
+        specifying whether the test should be skipped.  Use it tp
+        specify that the [%defines %skeleton "lalr1.cc"] tests currently
+        fail on some hosts, and should be skipped.
+
+2004-12-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/system.h (CALLOC, MALLOC, REALLOC): Remove.  All callers
+        changed to use xcalloc, xnmalloc, xnrealloc, respectively,
+        unless otherwise specified below.
+
+        * src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
+        to allocate kernel_base, kernel_items, kernel_size, since
+        they needn't be initialized to 0.
+        (allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
+        * src/closure.c (new_closure): Likewise, for itemset.
+        * src/derives.c (derives_compute): Likewise, for delts, derives, q.
+        * src/lalr.c (set_goto_map): Likewise, for temp_map.
+        (initialize_F): Likewise, for reads, edge, reads[i], includes[i].
+        (build_relations): Likewise for edge, states1, includes.
+        * src/nullable.c (nullable_compute): Likewise, for squeue, relts.
+        * src/reader.c (packgram): Likewise, for ritem, rules.
+        * src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
+        * src/relation.c (relation_digraph): Likewise for VERTICES.
+        (relation_transpose): Likewise for new_R, end_R.
+        * src/symtab.c (symbols_token_translations_init): Likewise for
+        token_translations.
+        * src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
+        (token_actions): Likewise for yydefact, actrow, conflrow,
+        conflict_list.
+        (save_column): Likewise for froms[symno], tos[symno].
+        (goto_actions): Likewise for state_count.
+        (pack_table): Likewise for base, pos, check.
+        (tables_generate): Likewise for width.
+
+        * src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
+        for initial core.  Just have a separate core, so we needn't worry
+        about whether kernel_size and kernel_base are initialized.
+
+        * src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
+        kernel_size, kernel_items): Remove unnecessary initialization.
+        * src/conflicts.c (conflicts): Likewise.
+        * src/derives.c (derives): Likewise.
+        * src/muscle_tablc (muscle_insert): Likewise.
+        * src/relation.c (relation_digraph): Likewise.
+        * src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
+        conflrow, conflict_table, conflict_list, table, check):
+        Likewise.
+
+        * src/closure.c (new_closure): Arg is of type unsigned int, not int.
+        This is because all callers pass unsigned int.
+        * src/closure.h (new_closure): Likewise.
+
+        * src/lalr.c (initialize_F): Initialize reads[i] in all cases.
+        (build_relations): Initialize includes[i] in all cases.
+        * src/reader.c (packgram): Always initialize rules[ruleno].prec
+        and rules[ruleno].precsym.  Initialize members in order.
+        * src/relation.c (relation_transpose): Always initialize new_R[i]
+        and end_R[i].
+        * src/table.c (conflict_row): Initialize 0 at end of conflict_list.
+
+        * src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
+        conflict_list[0] was always 0, but now it isn't initialized.
+
+        * src/table.c (table_grow): When conflict_table grew, the grown
+        area wasn't cleared.  Fix this.
+
+        * lib/.cvsignore: Add strdup.c, strdup.h.
+        * m4/.cvsignore: Add strdup.m4.
+
+2004-12-07  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
+        * src/lalr.c (set_goto_map): Don't allow ngotos to equal
+        GOTO_NUMBER_MAXIMUM, since we occasionally compute
+        ngotos + 1 without checking for overflow.
+        (build_relations): Use END_NODE, not -1, to denote end of edges.
+        * src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
+        build_relations): Use goto_number, not int, for goto numbers.
+        * src/tables.c (save_column, default_goto): Likewise.
+
+2004-11-23  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
+        of #defining from yystype.
+        Don't typedef yystype, C++ does not need it.
+        This lets it possible to forward declare it as union.
+
+2004-11-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * bootstrap (gnulib_modules): Add extensions.
+        Problem reported by Jim Meyering.
+
+2004-11-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
+        src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
+        src/system.h, src/tables.c: XFREE -> free, to accommodate
+        recent change to gnulib xalloc.h.
+        Problem reported by Jim Meyering.
+
+2004-11-17  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
+
+2004-11-17  Akim Demaille  <akim@epita.fr>,
+            Alexandre Duret-Lutz <adl@gnu.org>
+
+        * data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
+        changes.
+        (YYCDEBUG): Adjust.
+        Use it instead of cdebug_.
+        (Parser::debug_stream, Parser::set_debug_stream): New.
+        (Parser::symprint_): Define cdebug_ for temporary backward
+        compatibility.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
+        debug_stream ().
+
+2004-11-17  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Parser:print_): Remove, use %printer instead.
+        * tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
+        * tests/calc.at (_AT_DATA_CALC_Y): Ditto.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
+
+2004-10-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yyloc_default): Remove; not used.
+        Problem reported by Frank Heckenbach.
+
+2004-10-25  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (YYRHSLOC): Move its definition next to its uses.
+        Introduce another definition to address simple location arrays.
+        (yyGLRStack): New member: yyerror_range.
+        (yyrecoverSyntaxError, yyparse): Update it.
+        (yyrecoverSyntaxError): Use it when shifting the error token to
+        have an accurate range, equivalent to the one computed by both
+        yacc.c and lalr1.cc.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
+        that column numbers start at column 0, as per GNU Coding
+        Standards, the others tests, and the doc.
+        (_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
+        Adjust to the above change (first column is 0).
+        And adjust the location of the "<error>", now covering the whole
+        line.
+
+2004-10-22  Akim Demaille  <akim@epita.fr>
+        and Paul Eggert  <eggert@cs.ucla.edu>
+
+        Remove some arbitrary limits on goto numbers and relations.
+        * src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
+        initial values, since they're never used.
+        (set_goto_map): ngotos is now unsigned, so test for overflow
+        by seeing whether it wraps around to zero.
+        * src/lalr.h (goto_number): Now size_t, not short int.
+        (GOTO_NUMBER_MAXIMUM): Remove.
+        * src/relation.c (relation_print, traverse, relation_transpose):
+        Check for END_NODE rather than looking at sign.
+        * src/relation.h (END_NODE): New macro.
+        (relation_node): Now size_t, not short int.
+
+2004-10-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo (Language and Grammar): In example, "int" is a
+        keyword, not an identifier.  Problem reported by Baron Schwartz in
+        <http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
+
+2004-10-11  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c (symbol_check_alias_consistency): Also check
+        type names, destructors, and printers.
+        Reported by Alexandre Duret-Lutz.
+        Recode the handling of associativity and precedence in terms
+        of symbol_precedence_set.
+        Accept no redeclaration at all, not even equal to the previous
+        value.
+        (redeclaration): New.
+        Use it to factor redeclaration complaints.
+        (symbol_make_alias): Don't set the type of the alias, let
+        symbol_check_alias_consistency do it as for other features.
+        * src/symtab.h (symbol): Add new member prec_location, and
+        type_location.
+        * src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
+        * tests/input.at (Incompatible Aliases): New.
+
+2004-10-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        .cvsignore fixes to accommodate gnulib changes,
+        and the practice of naming build directories "_build".
+        * .cvsignore: Add "_*".  Sort.
+        * lib/.cvsignore: Add getopt_.h, xalloc-die.c.
+        * m4/.cvsignore: Add "*_gl.m4".
+
+2004-10-06  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (add_param): Fix the truncation of trailing
+        spaces.
+
+2004-10-05  Akim Demaille  <akim@epita.fr>
+
+        In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
+        whether the reducion was empty or not.  This leaves room to
+        improve the use of YYLLOC_DEFAULT in such a case.
+        lalr1.cc is still experimental, so changing this is acceptable.
+        And finally, there are probably not many users who changed the
+        handling of locations in GLR, so changing is admissible too.
+
+        * data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
+        empty reduction, set @$ to an empty location ending the previously
+        stacked symbol.
+        Adjust uses to make sure the code is triggered on empty
+        reductions.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
+        expected output: empty reductions have empty locations.
+
+2004-09-29  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Move towards a more standard C++ coding style
+        for templates: Class < T > -> Class<T>.
+
+2004-09-29  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Reinstall the former ctor, for sake of
+        compatibility, but warn it will be removed.
+        Move towards a more standard C++ coding style (i.e., type *var ->
+        type* var).
+
+2004-09-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/parse-gram.y (add_param): Rewrite to avoid strchr,
+        since it's less likely to work if NULs are involved in the future.
+
+2004-09-27  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
+
+2004-09-27  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (b4_parse_param_decl_1): New.
+        (b4_parse_param_decl): Use it to have different names between attribute
+        and argument names.
+        (b4_cc_constructor_call): Likewise.
+
+2004-09-24  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (add_param): Strip the leading and trailing
+        blanks from a formal argument declaration.
+        (YY_LOCATION_PRINT): New.
+
+2004-09-24  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
+        after the location.
+
+2004-09-24  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Table of Symbols): Sort.
+
+2004-09-21  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
+        the useless parentheses.
+        Suggested by Paul Eggert.
+
+2004-09-20  Akim Demaille  <akim@epita.fr>
+
+        Let the initial-action act on the look-ahead, and use it for the
+        "initial push" (corresponding to an hypothetical beginning-of-file).
+        And let lalr1.cc honor %initial-action.
+
+        * doc/bison.texinfo (Initial Action Decl): Clarify, and add an
+        example.
+        * data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
+        (Parser::Parser): Remove the ctor that used to initialize it.
+        (Parser::parse): Like in the other skeletons, issue the "starting
+        parse" message before any action.
+        Honor %initial-action.
+        Initialize the stacks with the lookahead.
+        * data/yacc.c: Let $$ and @$ in %initial-action designate the
+        look-ahead.
+        Push them in the stacks.
+        * tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
+
+2004-09-20  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Initial Action Decl): New.
+
+2004-09-20  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
+        clearer criterion to define it.
+        (parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
+        When reducing on an empty RHS, use the latest stacked location as
+        location.
+        yylloc is not always available.
+        * data/glr.c: Likewise.
+        Also, honor initial-actions.
+
+2004-09-20  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (YY_LOCATION_PRINT): New.
+        Define when we know YYLTYPE's structure, i.e., when the default
+        YYLLOC_DEFAULT is used.
+        * data/c.m4 (b4_yysymprint_generate): Use it.
+        * data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
+        value of the result.
+        (error_start_): Replace with...
+        (error_range_): this location array.
+        This allows to replace code relying on the implementation of
+        locations by portable code.
+        * data/yacc.c (yylerrsp): Replace with...
+        (yyerror_range): this.
+        Every time a token is popped, update yyerror_range[0], to have an
+        accurate location for the error token.
+        * data/glr.c (YY_LOCATION_PRINT): New.
+        (yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
+        deference a pointer.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
+        report the location in %printers.
+
+        * src/scan-skel.l: Instead of abort, report error messages to ease
+        understanding skeleton scanning failures.
+
+2004-09-16  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
+        (iterator, const_iterator): these, to be more in the C++ spirit.
+        Also, return reverse iterators so that when displaying the stack
+        we display its bottom first.
+        (Parser::stack_print_, Parser::reduce_print_): Match the messages
+        from yacc.c.
+        We should probably use vector here though.
+
+2004-09-16  Akim Demaille  <akim@epita.fr>
+
+        Have more complete shift traces.
+
+        * data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
+        to report Shifts instead of ad hoc YYDPRINTF invocations,
+        including for the error token.
+        * data/lalr1.cc (symprint_): Output the location.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
+        output the location within the %printer.
+        Activate GLR tests, at least to make sure they compile properly.
+        They still don't pass though.
+        * tests/calc.at: Adjust expect verbose output, since now "Entering
+        state..." is on a different line than the "Shifting" message.
+
+2004-09-08  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
+        Bison directive from the Bison file to the invocation of this
+        macro, so that these directives are passed to
+        AT_BISON_OPTION_PUSHDEFS to get correct help macros.
+        Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
+        Move the AT_SETUP/AT_CLEANUP outside, to report as test title
+        the extra Bison directives instead of the whole series.
+        Change the grammar so that there are recoverable errors, and
+        unrecoverable errors.  Now we can have the parser give up before
+        consuming the whole input.  As a result we now can observe that
+        the lookahead is freed when needed.
+        Change the parser source to parse argv[1] instead of a hard coded
+        string.
+        Simplify yylex, and give a value and location to EOF.
+        Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
+        passed directives already coded in the file.
+        Add some tests to check the location of "error".
+        For some tests, the C++ parser is correct, and not yacc.c.
+        For other tests, they provide different, but unsatisfying, values,
+        so keep the C++ value so that at least one parser is "correct"
+        according to the test suite.
+        (Actions after errors): Remove, this is subsumed by the
+        AT_CHECK_PRINTER_AND_DESTRUCTOR series.
+
+2004-09-06  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Adjust the indentation of the labels.
+        (Parser::pop): New.
+        Use it.
+
+2004-09-06  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
+        argument, an informative message.
+        Call YY_SYMBOL_PRINT.
+        Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
+        * data/lalr1.cc (destruct_): Likewise.
+        In addition, no longer depend on b4_yysymprint_generate and
+        b4_yydestruct_generate to generate these functions, do it "by
+        hand".
+
+2004-09-03  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
+        invoked, yydestruct the lookahead.
+        * tests/calc.at (Calculator $1): Update the expected lengths of
+        traces: there is an added line for the discarded lookahead.
+        * doc/bison.texinfo (Destructor Decl): Some rewording.
+        Define "discarded" symbols.
+
+2004-09-02  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (translate_, destruct_): No reason to be static.
+
+2004-09-02  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
+        (YYDSYMPRINTF): Rename as...
+        (YY_SYMBOL_PRINT): this.
+        * data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
+        two.
+        Use it instead of direct symprint_ calls.
+        (yybackup): Tweak the "Now at end of input" case to match yacc.c's
+        one.
+
+2004-09-02  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (b4_yysymprint_generate): New.
+        (symprint_): New member function, defined when YYDEBUG.
+        Use it consistently instead of token/nterm debugging output by
+        hand.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
+        %printer calls to use cdebug_ when using lalr1.cc.
+
+2004-08-30  Florian Krohm  <florian@edamail.fishkill.ibm.com>
+
+        * data/glr.c: Guard the declarations of yypstack and yypdumpstack
+        with #ifdef YYDEBUG.
+
+2004-08-26  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Implementing Loops): Rename as...
+        (Implementing Gotos/Loops): this.
+
+2004-08-13  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Adjust to latest gnulib.
+        * bootstrap (gnulib_modules): Add xalloc-die.
+        Set LC_ALL=C so that file names sort consistently.
+        Prefer the gnulib copies of gettext.m4, glibc21.m4,
+        inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
+        uintmax_t.m4, ulonglong.m4.
+        (intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
+        po.m4 since we are now using _gl.m4 instead.
+
+2004-08-10  Florian Krohm  <florian@edamail.fishkill.ibm.com>
+
+        * src/scan-action.l: Remove. Scanning of semantic actions is
+        handled in scan-gram.l.
+
+2004-08-07  Florian Krohm  <florian@edamail.fishkill.ibm.com>
+
+        * src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
+
+        * src/location.h (struct): The file member is a uniqstr.
+        (equal_boundaries): Use UNIQSTR_EQ for comparison.
+
+2004-07-22  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix bug with non-%union parsers that have printers or destructors,
+        which led to a Bison core dump.  Reported by Peter Fales in
+        <http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
+
+        * data/c.m4 (b4_symbol_actions): Don't assume %union was used.
+        * data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
+        not to our own type.
+        * src/output.c (symbol_destructors_output, symbol_printers_output):
+        Don't assume %union.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
+        AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
+        UNION-FLAG.  All callers changed.
+        (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
+        Use type char, not unsigned int, when declaring an array of char;
+        this lets us remove a cast.
+        (Printers and Destructors): Add non-%union test cases.
+
+2004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * doc/bison.texinfo: Minor editorial changes, mostly to the new
+        GLR writeups.  E.g., avoid frenchspacing and the future tense,
+        change "lookahead" to "look-ahead", and change "wrt" to "with
+        respect to".
+
+2004-06-21  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
+
+        * doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
+        New sections, split off from the GLR Parsers section.  Put the new
+        Simple GLR Parser near the start of the GLR section, for clarity.
+        Rewrite connective text.
+
+2004-06-21  Frank Heckenbach  <frank@g-n-u.de>
+
+        * doc/bison.texinfo (Simple GLR Parsers): New section.
+
+2004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS, TODO, doc/bison.texinfo:
+        Use "look-ahead" instead of "lookahead", to be consistent.
+        * REFERENCES: Fix incorrect reference to DeRemer and Pennello,
+        while we're fixing "look-ahead".
+        * src/conflicts.c (shift_set): Renamed from shiftset.
+        (look_ahead_set): Renamed from lookaheadset.
+        * src/print.c: Likewise.
+        * src/getargs.c (report_args): Add "look-ahead" as the new canonical
+        name for "lookahead".
+        (report_types, usage): Likewise.
+        * src/getargs.h (report_look_ahead_tokens): Renamed from
+        report_lookaheads.
+        * src/lalr.c (compute_look_ahead_tokens): Renamed from
+        compute_lookaheads.
+        (state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
+        (look_ahead_tokens_print): Renamed from lookaheads_print.
+        * src/state.c (state_rule_look_ahead_tokens_print): Renamed from
+        state_rule_lookaheads_print.
+        * src/state.h: Likewise.
+        (reductions.look_ahead_tokens): Renamed from lookaheads.
+        * tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
+        AT_DATA_LOOKAHEADS_GRAMMAR.
+
+2004-06-03  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * README: Update location of patched M4 distribution.
+
+2004-05-30  Albert Chin-A-Young  <china@thewrittenword.com>
+
+        Don't assume the C++ compiler takes the same arguments as the C compiler
+        (trivial change).
+        * configure.ac (O0CXXFLAGS): New var.
+        * tests/atlocal.in (CXXFLAGS): Use it.
+
+2004-05-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix some "make check" problems with C++ reported by
+        Albert Chin-A-Young for Tru64 C++ in this thread:
+        http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
+
+        * m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+        Output to a .cc file for C++, not to a .c file.
+        * tests/calc.at (AT_CHECK_CALC): Likewise.
+        * tests/regression.at (AT_CHECK_DANCER): Likewise.
+        * tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
+
+2004-05-28  Albert Chin-A-Young  <china@thewrittenword.com>
+
+        * tests/calc.at, tests/actions.at: Workaround for SGI
+        C++ compiler.  (trivial change)
+
+2004-05-27  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Spent a few hours checking out which prerequisite versions the
+        current sources actually require.  I went all the way back to
+        Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
+        a seemingly endless set of combinations of versions more recent
+        than that.  The bottom line is that the current sources require
+        fairly recent versions of the build tools, and it'll be some work
+        to change this.
+        * configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
+        (AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
+        (AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
+        Add comments explaining why those particular versions are
+        currently needed.
+
+        * src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
+        in SGI MIPSpro 7.4.1m.  Problem reported by Albert Chin-A-Young in
+        <http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
+
+        * configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
+        (it fails with a Autoconf-without-aclocal-m4 diagnostic).
+
+2004-05-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
+        0.11.5.  Suggested by Bruno Haible.
+        * bootstrap: Remove gettext version checking.
+
+        * doc/bison.texinfo (Decl Summary): Also mention that %union
+        can depend on prerequisite types.  Problem reported by Tim
+        Van Holder.
+
+2004-05-25  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * README: Mention GNU m4 1.4 bugs and Akim's patched version.
+        * README-alpha: Don't tell people not to package this.
+
+        * bootstrap: Don't assume $(...) works; use `...` instead.
+        Problem reported by Paul Hilfinger.  Also, diagnose non-GNU
+        gettext better.
+
+        * doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
+        put into the -d output file, and mention what to do if YYSTYPE is
+        defined as a macro.
+
+2004-05-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Undo change made earlier today: it caused autopoint to not bring
+        in ABOUT-NLS.  Ouch.  Instead, substitute our own diagnostic for
+        autopoint's.
+
+        * bootstrap: Check that gettext version matches what's in
+        configure.ac.  Warn users to ignore robots.txt ERROR 404.
+        * bootstrap: Undo today's earlier change (logged below).
+        * configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
+
+        The gettext version checking is causing more trouble than it's
+        curing; remove it.  Problem reported by Paul Hilfinger.
+
+        * bootstrap: Issue a warning that one can expect a message
+        'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
+        * configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
+
+2004-05-23  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Ensure that the C++ compiler used for testing actually works on a
+        simple test program; if not, skip the C++-related tests.  Problem
+        reported by Vin Shelton in:
+        http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
+
+        * m4/cxx.m4: New file.
+        * configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
+        * tests/atlocal.in (BISON_CXX_WORKS): Add.
+        * tests/local.at (AT_COMPILE_CXX): Use it.
+
+2004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * data/glr.c (yylloc): Output this macro even if locations are not
+        being generated, as the GLR parser needs it even in that case.
+        Problem reported by Troy A. Johnson
+        <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
+
+        * configure.ac (AC_INIT): Update to 1.875e.
+
+2004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Version 1.875d.
+        * configure.ac (AC_INIT): Likewise.
+        * src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
+
+        * configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
+        -Wmissing-prototypes, or -Wstrict-prototypes for C++.  The current
+        lalr1.cc runs afoul of the first, and the last two are no longer
+        supported by GCC 3.4.0.
+        * README: Mention GNU m4 1.4 or later; mention m4 patches.
+        * HACKING: Use ./bootstrap, not "make update" to import foreign files.
+
+2004-05-06  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * src/muscle_tab.c (hash_muscle): Accept and return size_t, not
+        unsigned int, for compatibility with latest gnulib hash module.
+        * src/state.c (state_hash, state_hasher): Likewise.
+        * src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
+        * src/uniqstr.c (hash_uniqstr): Likewise.
+
+2004-05-03  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * NEWS: Unescaped newlines are no longer allowed in char & strings.
+
+        * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
+        SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
+        character and string literals.
+        (unexpected_end): New function.
+        (unexpected_eof): Use it.
+        (unexpected_newline): New function.
+        (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
+        actions.
+
+        * NEWS: Document %expect-rr.
+
+        * bootstrap (--gnulib-srcdir=*, --cvs-user=*):
+        Fix typo by replacing $1 with $option.
+        Remove more 'intl'-related files.
+        Don't DEFUN AM_INTL_SUBDIR twice.
+
+        * lib/.cvsignore: Add strndup.h.  Remove memchr.c, memcmp.c,
+        memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
+        strtoul.c.
+        * m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
+        hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
+        xstrndup.m4.  Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
+        inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
+        stdint_h.m4, uintmax_t.m4, ulonglong.m4.
+        * src/.cvsignore: Add *.output.
+
+        * src/parse-gram.y: Put copyright notice inside %{ %} so it
+        gets copied to the output file.
+
+2004-04-28  Paul Eggert  <eggert@twinsun.com>
+
+        Get files from the gnulib and po repositories, instead of relying
+        on them being in our CVS.  Upgrade to latest versions of gnulib
+        and Automake.
+
+        * Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
+        * bootstrap: Bootstrap from gnulib and po repositories.
+        Much of this code was stolen from GNU diff and GNU tar's bootstrap.
+        * README-cvs: Document these changes.  Remove version numbers from
+        mentions of build tools, since they change so often.  Mention Flex.
+
+        * configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
+        (gl_USE_SYSTEM_EXTENSIONS): Add.
+        (AC_GNU_SOURCE, AC_AIX, AC_MINIX):
+        Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
+        does this for us.
+        (AC_ISC_POSIX): Remove; we no longer support this
+        ancient OS, as it gets in the way of latest Autoconf & gnulib.
+        (AC_HEADER_STDC): Remove: we now assume C89 or better.
+        (AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
+        Do not check for C89 headers, except for locale.h which is used
+        by the Yacc library and must port to K&R hosts.
+        (AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
+        Do not check for C89 functions, except for setlocale which is
+        used by the Yacc library.
+        (AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
+        (gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
+        gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
+        gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
+        gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
+        AM_GNU_GETTEXT): Remove; now done by:
+        (GNULIB_AUTOCONF_SNIPPET): Add.  "bootstrap" builds this for us.
+        (AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
+        for us.
+
+        * lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
+        (BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
+        Define to empty, as gnulib.mk will do the rest for us.
+        ($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
+        for us.
+        (libbison_a_SOURCES): Define to $(lib_SOURCES) now.
+        (lib_SOURCES): New symbol, containing only the non-gnulib libs.
+
+        * src/files.c: Include gnulib's xstrndup.h.
+
+        * src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
+        (REALLOC): Use xnrealloc, for likewise.
+        (xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
+        (strnlen, memrchr): Remove decls; functions no longer used.
+        Include <stpcpy.h>.
+
+        * config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
+        lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+        lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
+        lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
+        lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
+        lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
+        lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
+        lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
+        lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
+        lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
+        lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
+        m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+        m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
+        m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
+        m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
+        m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
+        m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
+        m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
+        po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
+        po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
+        po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
+        Remove, as these files are now generated automatically
+        by bootstrap or automake.
+
+        * po/ChangeLog: Remove: all but one entry was a duplicate
+        of this file, and I moved that 2000-11-02 entry here.
+
+        * config/.cvsignore: Add Makefile, depcomp, install-sh.
+        * lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
+        argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
+        exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
+        getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
+        hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
+        memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
+        quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
+        strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
+        strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
+        unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
+        xstrndup.h.
+        * m4/.cvsignore: Remove Makefile, Makefile.in.  Add alloca.m4,
+        dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
+        mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
+        stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
+        * po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
+        * src/.cvsignore: Remove *_.c.
+
+
+        * Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
+        support it.  (The latest stable gzip doesn't.)
+
+2004-04-27  Paul Eggert  <eggert@twinsun.com>
+
+        * data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
+        case, as stos_ is now used by destructors due to the 2004-02-09
+        change.
+
+        Remove more K&R C support.
+        * lib/libiberty.y (PARAMS): Remove.  All uses removed.
+        * lib/subpipe.c (errno): Remove decl.
+        Include <stdlib.h> unconditionally.
+        (EXIT_FAILURE): Remove macro.
+        * src/complain.c (vfprintf, strerror): Remove.
+        * src/system.h: Include limits.h, stdlib.h, string.h, locale.h
+        unconditionally.
+        (EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
+        Use latest Autoconf recommendations for including inttypes.h, stdint.h.
+        (strchr, strspn, memchr): Remove decls.
+        * tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
+        unconditionally.  Do not declare perror.
+        * tests/conflicts.at (%nonassoc and eof): Include stdlib.h
+        unconditionally.
+
+        * src/complain.c (_): Remove useless defn, as system.h defines this.
+
+        * lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
+        with latest obstack.h.
+        * lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
+        to procedure types, as obstack.h now does that for us.
+        * lib/lbitset.c (lbitset_elt_alloc): Likewise.
+
+        * lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
+        so that this include file can stand alone.
+        * lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
+        does this now.  Include subpipe.h first after config.h, to
+        test whether it can stand alone.
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
+        declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
+        unused declaration.
+
+        * tests/synclines.at (%union synch line): Put a dummy member in
+        the union, because empty unions aren't allowed in C.  Caught
+        by GCC 3.4.0.
+
+2004-04-13  Jim Meyering  <jim@meyering.net>
+
+        * src/conflicts.c (conflicts_print): Correct format string typo:
+        use `%%' to produce literal `%'.  (trivial change)
+
+2004-03-30  Paul Eggert  <eggert@twinsun.com>
+
+        * src/getargs.c (version): Update copyright year to 2004.
+
+        * data/c.m4 (b4_int_type): Use 'short int' rather than
+        'short', and similarly for 'long', 'unsigned', etc.
+        * data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
+        yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
+        yy_yypstack, yydumpstack): Likewise.
+        * data/lalr1.cc (user_token_number_max_, user_token_number_max_,
+        translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
+        Likewise.
+        * data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
+        yy_stack_print, yyparse): Likewise.
+        * doc/bison.texinfo (Prologue, Multiple Types): Likewise.
+        * lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
+        * lib/bitset.c (bitset_print): Likewise.
+        * lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
+        * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+        * lib/bitsetv.c (bitsetv_dump): Likewise.
+        * lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
+        * lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
+        Likewise.
+        * src/LR0.c (allocate_itemsets): Likewise.
+        * src/gram.h (rule_number, rule): Likewise.
+        * src/lalr.h (goto_number): Likewise.
+        * src/nullable.c (nullable_compute): Likewise.
+        * src/output.c (prepare_rules): Likewise.
+        * src/relation.c (relation_print, relation_digraph): Likewise.
+        * src/relation.h (relation_node): Likewise.
+        * src/state.h (state_number, transitions, errs, reductions,
+        struct state): Likewise.
+        * src/symtab.h (symbol_number, struct symbol): Likewise.
+        * src/tables.c (vector_number, tally, action_number,
+        default_goto, goto_actions): Likewise.
+        * tests/existing.at (GNU Cim Grammar): Likewise.
+        * tests/regression.at (Web2c Actions): Likewise.
+
+        * src/output.c (muscle_insert_short_int_table): Renamed from
+        muscle_insert_short_table.  All uses changed.
+
+2004-03-25  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
+
+        * src/parse-gram.y: Define PERCENT_EXPECT_RR.
+        (declaration): Replace expected_conflicts with expected_sr_conflicts.
+        Add %expect-rr rule.
+
+        * src/scan-gram.l: Recognize %expect-rr.
+
+        * src/conflicts.h (expected_sr_conflicts): Rename from
+        expected_conflicts.
+        (expected_rr_conflicts): Declare.
+
+        * src/conflicts.c (expected_sr_conflicts): Rename from
+        expected_conflicts.
+        (expected_rr_conflicts): Define.
+        (conflicts_print): Check r/r conflicts against expected_rr_conflicts
+        for GLR parsers.
+        Use expected_sr_conflicts in place of expected_conflicts.
+        Warn if expected_rr_conflicts used in non-GLR parser.
+
+        * doc/bison.texinfo: Add documentation for %expect-rr.
+
+2004-03-08  Paul Eggert  <eggert@gnu.org>
+
+        Add support for hex token numbers.  Suggested by Odd Arild Olsen in
+        <http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
+
+        * NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
+        in lalr1.cc.
+        * doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
+        * src/scan-gram.l (scan_integer): New function.
+        ({int}): Use it.
+        (0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
+        (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
+        handle_action_dollar, handle_action_at, convert_ucn_to_byte):
+        Say "long int", not "long", for uniformity with GNU style.
+
+2004-02-25  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
+        compilers.  This fixes a problem with Intel's C++ compiler being
+        chatty, reported by Guido Trentalancia in
+        <http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
+
+2004-02-09  Alexandre Duret-Lutz  <adl@gnu.org>
+
+        Support %destructor and merge error locations in lalr1.cc.
+
+        * data/lalr1.cc (b4_cxx_destruct_def): New macro.
+        (Parser::stos_): Define unconditionally.
+        (Parser::destruct_): New method.  Generate its body with
+        b4_yydestruct_generate.
+        (Parser::error_start_): New attribute.
+        (Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
+        token which are discarded.
+        (Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
+        error_start_ when erroneous token are discarded.
+        (Parser::parse) <yyerrlab1>: Compute the location of the error
+        token so that it covers all the discarded tokens.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
+        it can be called with `%skeleton "lalr1.cc"', and do that.
+
+2004-02-02  Paul Eggert  <eggert@twinsun.com>
+
+        * src/Makefile.am (AM_CPPFLAGS): New macro.  It mentions
+        $(top_srcdir)/lib and ../lib.  This fixes a bug reported
+        by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
+        There's no need to mention top_builddir since Automake does that
+        for us.
+        (INCLUDES): Remove, as Automake says it's obsolescent.
+        Contents migrated into AM_CPPFLAGS as described above.
+        * lib/Makefile.am (INCLUDES): Remove; obsolescent.
+
+2004-01-14  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
+
+        * data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
+        (yyreportSyntaxError): Handle case where lookahead token is
+        YYEMPTY.
+
+2004-01-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
+        resulting parsers are compilable with C++.
+
+2003-12-23  Paul Eggert  <eggert@twinsun.com>
+
+        * config/depcomp, config/install-sh: Sync with Automake 1.8.
+        * src/output.c (output_skeleton): Rename local var.
+        * tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
+        Bison tokens, as this runs afoul of the 2003-10-07 change that
+        disallowed NUL bytes in character constants or string literals.
+
+        * tests/local.at: Require Autoconf 2.59's Autotest.
+        * tests/testsuite.at: Don't include local.at, since we now assume
+        Autoconf 2.59 or later.  Autoconf 2.59 had some problems with
+        including it.
+        * tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
+        multiple inclusion warnings.
+
+2003-12-02  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (How Can I Reset the Parser): More about start
+        conditions.
+        From Bruno Haible.
+
+2003-11-18  Alexandre Duret-Lutz  <adl@gnu.org>
+
+        * doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
+
+2003-10-07  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
+        if testsuite doesn't exist.
+
+        * doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
+        literals, unfortunately.
+        * src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
+        Complain about NUL bytes in character constants or string literals.
+
+2003-10-05  Paul Eggert  <eggert@twinsun.com>
+
+        * NEWS: Don't document %no-default-prec, as it's still
+        too experimental.
+        * doc/bison.texinfo: Document %no-default-prec only if
+        the defaultprec flag is set.  Normally it's not.
+
+2003-10-04  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
+        non-modifiable lvalue, instead of a modifiable one.
+        * doc/bison.texinfo (Actions): Document that $$ can
+        be assigned to.  Do not claim that $$ and $N are
+        array element references: user code should not rely on this.
+
+2003-10-01  Paul Eggert  <eggert@twinsun.com>
+
+        * src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
+        (grammar_declaration): Use it.
+        * src/scan-gram.l: New token %no-default-prec.
+        * tests/conflicts.at: Revamp tests to use %no-default-prec.
+        * NEWS, doc/bison.texinfo: Document the above.
+
+2003-10-01  Akim Demaille  <akim@epita.fr>
+
+        VCG no longer supports long_straight_phase.
+
+        * src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
+        * src/print_graph.c (print_graph): Adjust.
+
+2003-09-30  Frank Heckenbach  <frank@g-n-u.de>
+        and Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo (Decl Summary, Contextual Precedence,
+        Table of Symbols): Document %default-prec.
+        * src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
+        (grammar_declaration): Set default_prec on %default-prec.
+        * src/scan-gram.l (%default-prec): New token.
+        * src/reader.h (default_prec): New flag.
+        * src/reader.c: Likewise.
+        (packgram): Handle it.
+        * tests/conflicts.at (%default-prec without %prec,
+        %default-prec with %prec, %default-prec 1): New tests.
+
+2003-09-30  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/testsuite.at: Include local.at, not input.at, fixing
+        a typo in the 2003-08-25 patch.
+
+2003-08-27  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
+        GCC warnings.
+
+2003-08-26  Akim Demaille  <akim@epita.fr>
+
+        * config/announce-gen (print_changelog_deltas): Neutralize "<#" as
+        "<\#" to avoid magic from Gnus when posting parts of this script.
+
+2003-08-26  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
+        (Parser::parse): here.
+        Adjust: nerrs and errstatus is now replaced by...
+        (Parser::nerrs_, Parser::errstatus_): New.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        * config/announce-gen, Makefile.cfg: New.
+        * Makefile.am: Adjust.
+        * GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
+        keeping local WGET and WGETFLAGS modifications from Paul Eggert.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        When reducing initial empty rules, Bison parser read an initial
+        location that is not defined.  This results in garbage, and that
+        affects Bison's own parser.  Therefore we need (i) to extend Bison
+        to support a means to initialize this location, and (ii) to use
+        this CVS Bison to fix CVS Bison's parser.
+
+        * src/reader.h, reader.c (epilogue_augment): Remove, replace
+        with...
+        * src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
+        * src/parse-gram.y: Adjust.
+        (%initial-action): New.
+        (%error-verbose): Since we require CVS Bison, there is no reason
+        not to use it.
+        * src/scan-gram.l: Adjust.
+        * src/Makefile.am (YACC): New, to make sure we use our own parser.
+        * data/yacc.c (yyparse): Use b4_initial_action.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Don't promote stdout for error messages.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
+        From Alexandre Duret-Lutz.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        Version 1.875c.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
+        Use them.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (Parser::reduce_print_): New.
+        Use it.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
+        error recovery loops.  This patch is based on
+        <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
+        Also, augment the similarity between lalr1.cc and yacc.c.
+        Note: the locations of error recovery rules are not correct yet.
+
+        * data/lalr1.cc: Comment changes to augment the similarity between
+        lalr1.cc and yacc.c.
+        (YYERROR): Goto to yyerrorlab, not yyerrlab1.
+        (yyerrlab1): Remove, but where it used to be (now the bottom part of
+        yyerrlab), when hitting EOF, pop the whole stack here instead of
+        merely falling thru the default error handling mechanism.
+        (yyerrorlab): New label, with the old contents of YYERROR,
+        plus the following change: pop the stack of rhs corresponding
+        to the production that invoked YYERROR.  That is how Yacc
+        behaves (required by POSIX).
+        * tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
+        fail.
+
+2003-08-25  Akim Demaille  <akim@epita.fr>
+
+        Tune local.at so that people can "autom4te -l autotest calc.at -o
+        calc" for instance, to extract a sub test suite.
+
+        * tests/testsuite.at: Move the initialization, Autotest version
+        requirement, and AT_TESTED invocation into...
+        * tests/local.at: here.
+        * tests/testsuite.at: Include it for compatibility with Autoconf
+        2.57.
+        * tests/Makefile.am ($(TESTSUITE)): Report that the warning should
+        be ignore.
+
+2003-08-04  Paul Eggert  <eggert@twinsun.com>
+
+        Rework code slightly to avoid gcc -Wtraditional warnings.
+        * data/glr.c (yyuserMerge): Return void, not YYSTYPE.
+        The returned value is now stored in *YY0.  All callers changed.
+        * src/output.c (merge_output): Adjust to the above change.
+
+2003-07-26  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (YYASSERT): New macro.
+        (yyfillin, yydoAction, yyglrReduce, yysplitStack,
+        yyresolveStates, yyprocessOneStack):
+        Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
+        Derived from a suggestion by Frank Heckenbach.
+
+2003-07-25  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yyglrReduce): Don't use C89 string concatenation,
+        for portability to K&R C (after ansi2knr, presumably).  See
+        <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
+        by Frank Heckenbach, though I have omitted the structure-initialization
+        part of his glr-knr.diff patch since I recall that the Portable
+        C Compiler didn't require that change.
+
+        Let the user specify how to allocate and free memory.
+        Derived from a suggestion by Frank Heckenbach in
+        <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
+        * data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
+        All uses of free, malloc, realloc changed to use these macros,
+        and unnecessary casts removed.
+        * data/yacc.c (YYFREE, YYMALLOC): Likewise.
+
+2003-07-06  Matthias Mann  <MatthiasMann@gmx.de>
+
+        * data/lalr1.cc (operator<<(std::ostream&, const Position&)):
+        use s.empty() rather than s == "" to test for empty string; see
+        <http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
+        (trivial change)
+
+2003-06-25  Akim Demaille  <akim@epita.fr>
+
+        * config/depcomp, config/install-sh: Update from masters.
+
+2003-06-20  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
+        and return properly parenthesized result.
+        * data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
+        * data/yacc.c (YYLLOC_DEFAULT): Likewise.
+        Remove unnecessary parentheses from uses.
+        * doc/bison.texinfo (Location Default Action): Describe the
+        conventions for parentheses.
+
+2003-06-19  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
+        yyreportTree): Do not assume that size_t is the same width as int,
+        when printing sizes.  Print sizes using an unsigned format.
+        Problem reported by Frank Heckenbach in
+        <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
+
+        Port to Forte Developer 7 C compiler.
+        * data/glr.c (struct YYLTYPE): If locations are not being used,
+        declare a single dummy member, as empty structs do not conform
+        to the C standard.
+        (YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
+        the Forte Developer 7 C compiler complains that end-of-loop
+        code is not reached.
+
+2003-06-17  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
+        avoid warnings from picky compilers about redefinition of PARAMS.
+
+2003-06-17  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.875b.
+
+        * NEWS: Document 1.875b.
+
+        * lib/bbitset.h: Do not include config.h; that's the includer's job.
+        Do not include <sys/types.h>; shouldn't be needed on a C89 host.
+        * lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
+        Don't use 'index' in comments, as it's a builtin fn on some hosts.
+        * lib/bitset_stats.c: Include gettext.h unconditionally, as
+        per recent gettext manual's suggestion.
+        * lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
+        Use prototypes, not old-style definitions.
+        * lib/lbitset.c (lbitset_unused_clear): Likewise.
+        * lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
+        vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
+        vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
+        vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
+        vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
+        vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
+        vbitset_or_and_cmp, vbitset_copy): Likewise.
+
+        * lib/libiberty.h: Do not include config.h; that's the includer's job.
+        Do not include <stdlib.h>.
+        (PARAMS): Define unconditionally for C89.
+        (ATTRIBUTE_NORETURN): Remove.
+        (ATTRIBUTE_UNUSED): Define unconditionally.
+
+        Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
+        <http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
+        * lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
+        * lib/vbitset.c, lib/vbitset.h: New files.
+        * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+        lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
+        from libbitset.
+
+        * doc/bison.texinfo (How Can I Reset the Parser): Renamed from
+        `How Can I Reset @code{yyparse}', since texinfo does not allow
+        arbitrary @ in node names.
+
+        * m4/Makefile.am (EXTRA_DIST): Add the following files, which
+        shouldn't be needed according to the gettext 0.12.1 documentation
+        but which seem to be needed anyway: codeset.m4 glibc21.m4
+        intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
+        lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
+        * po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
+
+        * lib/.cvsignore: Add stdbool.h.
+        * m4/.cvsignore: Add nls.m4, po.m4.
+
+        Upgrade to CVS gnulib.
+        * stdbool_.h: File renamed from stdbool.h.in.
+        * configure.ac (AM_STDBOOL_H): Invoke this instead of
+        AC_HEADER_STDBOOL.
+        (AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
+        (AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
+        * lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
+        (MOSTLYCLEANFILES): New var.
+        ($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
+        (stdbool.h): New rule.
+        * lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
+        lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
+        lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
+        m4/quote.m4: Upgrade to today's gnulib.
+
+        * tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
+        (AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
+        the tests right now.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
+        yyerror are declared before use; C99 requires this.
+
+2003-06-09  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/glr.c (YYERROR): Update definition to reset yyerrState to 0
+        first.
+        (yyrecoverSyntaxError): Correct the logic for setting and testing
+        yyerrState.
+        Correct comment on handling EOF.
+        Allow states with only a default reduction, rather than failing
+        (I can't quite reconstruct why these were not allowed before).
+
+        Fixes to avoid problem that $-N rules in GLR parsers can cause
+        buffer overruns, corrupting state.
+
+        * src/output.c (prepare_rules): Output max_left_semantic_context
+        definition.
+        * src/reader.h (max_left_semantic_context): New variable declaration.
+        * src/scan-gram.l (max_left_semantic_context): Define.
+        (handle_action_dollar): Update max_left_semantic_context.
+        * data/glr.c (YYMAXLEFT): New definition.
+        (yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
+        (yyresolveAction): Ditto.
+
+        Fixes to problems with location handling in GLR parsers reported by
+        Frank Heckenbach (2003/06/05).
+
+        * data/glr.c (YYLTYPE): Make trivial if locations not used.
+        (YYRHSLOC): Add parentheses, and define only if locations used.
+        (YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
+        locations not used.
+        (yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
+        (yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
+
+        * tests/cxx-type.at: Exercise location information; update tests
+        to differentiate output with and without locations.
+        Remove forward declarations of yylex and yyerror---caused errors
+        because default YYLTYPE not yet defined.
+        Change semantic actions to compute strings, rather than printing
+        them directly (to test proper passing of semantics values).  Change
+        output to prefix notation and update test data and expected results.
+        (yylex): Track locations.
+        (stmtMerge): Return value rather than printing, and include arguments
+        in value.
+
+2003-06-03  Paul Eggert  <eggert@twinsun.com>
+
+        Avoid warnings generated by GCC 2.95.4 when Bison is
+        configured with --enable-gcc-warnings.
+        * data/lalr1.cc (yy::]b4_parser_class_name[::parse,
+        yy::]b4_parser_class_name[::translate_,
+        yy::Stack::operator[] (unsigned),
+        yy::Stack::operator[] (unsigned) const,
+        yy::Slice::operator[] (unsigned),
+        yy::Slice::operator[] (unsigned) const):
+        Rename local vars to avoid warnings.
+        * tests/glr-regression.at (Improper handling of embedded actions
+        and $-N in GLR parsers): Remove unused local variable from yylex.
+        * tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
+        (void) as arg when not pure, since we now assume C89 when building
+        Bison.  Pacify GCC by using parameter.
+
+2003-06-02  Paul Eggert  <eggert@twinsun.com>
+
+        * data/lalr1.cc (yy::Position::lines, yy::Position::columns,
+        yy::Location::lines, yy::Location::columns): Rename arguments
+        to avoid shadowing; this removes a warning generated by GCC 3.3.
+
+2003-06-01  Paul Eggert  <eggert@twinsun.com>
+
+        Don't pass C-only warning optins (e.g., -Wmissing-declarations)
+        to g++, as GCC 3.3 complains if you do it.
+        * configure.ac (WARNING_CXXFLAGS): New subst.  Set it to
+        everything that WARNING_CFLAGS has, except omit warnings
+        not suitable for C++.
+        (AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
+        * tests/atlocal.in (CXXFLAGS): New var.
+        * tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
+
+        Fix a GLR parser bug I reported in February; see
+        <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
+        The problem was that GLR parsers did not conform to the C standard,
+        because actions like { $1 = $2 + $3; } expanded to expressions
+        that invoked YYFILL in separate subexpressions, and YYFILL assigned
+        to a local variable.  The C standard says that expressions
+        like (var = f ()) + (var = f ()) have undefined behavior.
+        Another problem was that GCC sometimes issues warnings that
+        yyfill and its parameters are unused.
+
+        * data/glr.c (yyfillin): Renamed from the old yyfill.  Mark
+        as possibly unused.
+        (yyfill): New function.
+        (YYFILL): Use it.
+        (yyuserAction): Change type of yynormal to bool, so that it matches
+        the new yyfill signature.  Mark it as possibly unused.
+
+
+        Follow up on a bug I reported in February, where a Bison-generated
+        parser can loop.  Provide a test case and a fix for yacc.c.  I
+        don't have a fix for lalr1.cc or for glr.c, unfortunately.
+        The original bug report is in:
+        <http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
+
+        * data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
+        macro's size was becoming unwieldy.
+        (yyerrlab): Do not discard an empty lookahead symbol, as this
+        might destroy garbage.
+        (yyerrorlab): New label, with the old contents of YYERROR,
+        plus the following change: pop the stack of rhs corresponding
+        to the production that invoked YYERROR.  That is how Yacc
+        behaves, and POSIX requires this behavior.
+        (yyerrlab1): Use YYPOPSTACK instead of its definiens.
+        * tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
+        Define 'alarm' to do nothing if unistd.h is not available.
+        Add a new rule "exp: '-' error;" to test the above change to
+        data/yacc.c.  Use 'alarm' to abort any test taking longer than
+        10 seconds, as it's probably looping.
+        (AT_CHECK_CALC): Test recovery from error in new grammar rule.
+        Also, the new yacc.c generates two fewer diagnostics for an
+        existing test.
+
+2003-05-24  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
+        YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
+        This fixes a problem reported by John Bowman when the Compaq/HP
+        Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
+        -ansi -Wall -gall).
+        * data/yacc.c (union yyalloc): Likewise.
+        (YYCOPY): Do not evaluate __GNUC__ unless it is defined.
+
+        Switch from 'int' to 'bool' where that makes sense.
+
+        * lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
+        abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
+        abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
+        abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
+        Return or accept bool, not int.  All callers changed.
+        * lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
+        bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
+        * lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
+        bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
+        bitset_or_and_cmp_): Likewise.
+        * lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
+        * lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
+        bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
+        bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
+        bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
+        bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
+        bitset_stats_or_and_cmp): Likewise.
+        * lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
+        ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
+        ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
+        ebitset_xor_cmp): Likewise.
+        * lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
+        lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
+        lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
+        lbitset_xor_cmp): Likewise.
+        * lib/bbitset.h: Include <stdbool.h>.
+        (struct bitset_vtable): The following members now return bool, not
+        int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
+        and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
+        or_and_cmp).
+        * src/conflicts.c (count_rr_conflicts): Likewise.
+        * lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
+        All uses changed.
+        * lib/ebitset.c (ebitset_obstack_init): Likewise.
+        * lib/lbitset.c (lbitset_obstack_init): Likewise.
+        * src/getargs.c (debug_flag, defines_flag, locations_flag,
+        no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+        graph_flag): Likewise.
+        * src/getargs.h (debug_flag, defines_flag, locations_flag,
+        no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
+        graph_flag): Likewise.
+        * src/output.c (error_verbose): Likewise.
+        * src/output.h (error_verbose): Likewise.
+        * src/reader.c (start_flag, typed): Likewise.
+        * src/reader.h (typed): Likewise.
+        * src/getargs.c (LOCATIONS_OPTION): New constant.
+        (long_options, getargs): Use it.
+        * src/lalr.c (build_relations): Use bool, not int.
+        * src/nullable.c (nullable_compute): Likewise.
+        * src/print.c (print_reductions): Likewise.
+        * src/tables.c (action_row, pack_vector): Likewise.
+        * src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
+        * src/output.c (prepare): Use it.
+        * src/output.c (token_definitions_output,
+        symbol_destructors_output, symbol_destructors_output): Use string,
+        not boolean integer, to keep track of whether to output separator.
+        * src/print_graph.c (print_core): Likewise.
+        * src/state.c (state_rule_lookaheads_print): Likewise.
+
+        * config/install-sh: Sync from automake 1.7.5.
+
+2003-05-14  Paul Eggert  <eggert@twinsun.com>
+
+        * src/parse-gram.y (rules_or_grammar_declaration): Require a
+        semicolon after a grammar declaration, in the interest of possible
+        future changes to the Bison input language.
+        Do not allow a stray semicolon at the start of the grammar.
+        (rhses.1): Allow one or more semicolons after any rule, including
+        just before "|" as required by POSIX.
+        * tests/input.at (Torturing the Scanner): Add tests for ";|" in a
+        grammar.
+
+2003-05-14  Alexandre Duret-Lutz  <adl@gnu.org>
+
+        %parse-param support for lalr1.cc.
+
+        * data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
+        b4_cc_constructor_calls, b4_cc_constructor_call,
+        b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
+        definitions.
+        (yy::b4_parser_class_name::b4_parser_class_name): Take extra
+        parse-param arguments.
+        (yy::b4_parser_class_name): Declare instance variables to
+        hold parse-param arguments.
+        * tests/calc.at: s/value/semantic_value/ because value clashes
+        with a member of yy::b4_parser_class_name.  Adjust C++ code
+        to handle %parse-param.  Enable %parse-param test in C++.
+
+2003-05-12  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
+        English a bit.  Fix fclose typo.  Change "const char" to "char
+        const", and use ANSI C rather than K&R for "main".  Suggest
+        YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
+        and suggest yy_switch_to_buffer.
+
+2003-05-05  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
+        C89.  This avoids a diagnostic on compilers that define __STDC__
+        to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-05-03  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
+        Do not overrun array bounds.
+        This should fix a bug reported today by Olatunji Oluwabukunmi in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
+
+2003-04-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
+        * src/getargs.c, src/getargs.h: here, as bool, not int.
+        (nondeterministic_parser): New.
+        * src/parse-gram.y, src/scan-gram.l: Support
+        %nondeterministic-parser.
+        * src/output.c (prepare): Use nondeterministic_parser instead
+        of glr_parser where appropriate.
+        * src/tables.c (conflict_row, action_row, save_row)
+        (token_actions, token_actions, pack_vector): Ditto.
+
+2003-04-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
+
+2003-04-29  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
+        with %pure-parser and %locations to exercise the patch from Yakov
+        Markovitch below.
+
+2003-04-28  Tim Van Holder <tim.van.holder@pandora.be>
+
+        * data/yacc.c: (b4_lex_param): Corrected for the case where
+        %lex-param is provided and %pure-parser isn't.
+
+2003-04-27  Paul Eggert  <eggert@twinsun.com>
+
+        Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
+        * data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
+        if it is not defined.
+        (YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
+
+2003-04-26  Paul Eggert  <eggert@twinsun.com>
+
+        * data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
+        Declare to be of type suitable for the ninf value itself, not of
+        type suitable for the corresponding table, since the latter might
+        be unsigned but the ninf value might be negative.  This fixes a
+        bug reported by Alexandre Duret-Lutz in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
+
+        * configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
+        invokes it.  We shouldn't invoke it twice because it will attempt
+        to put error.o in the archive twice.  This fixes a glitch reported
+        by Martin Mokrejs in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
+
+2003-04-21  Paul Eggert  <eggert@twinsun.com>
+
+        * m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
+        to gnulib.
+
+2003-04-21  Yakov Markovitch <Markovitch@iso.ru>
+
+        * data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
+        Fix obvious typo that results in uncompilable GLR parsers
+        when both %pure-parser and %locations are used.  (trivial change)
+
+2003-04-17  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l: Add %option nounput, since we no longer use unput.
+        (unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
+        Do not insert the expected token via unput, as this runs afoul
+        of a POSIX-compatibility bug in flex 2.5.31.
+        All uses changed to BEGIN the parent state,
+        since we no longer insert the expected token via unput.
+        * tests/regression.at (Invalid inputs): Remove cascaded diagnostic
+        that is no longer emitted after the above change.
+
+        * src/conflicts.c (set_conflicts): Resolve all conflicts, not just
+        the first one.  This change is from Paul Hilfinger, and it fixes
+        regression reported by Werner Lemberg in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
+
+        (resolve_sr_conflict): Don't invoke state_errs_set
+        unless one or more tokens have been explicitly made errors.
+        Otherwise, the above change causes Bison to abort.
+
+        * tests/existing.at (GNU pic Grammar): New test case, taken from
+        Lemberg's email.
+
+2003-03-31  Akim Demaille  <akim@epita.fr>
+
+        * doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
+
+2003-03-31  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare_symbols): Avoid trailing spaces in the
+        output.
+
+2003-03-31  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
+        From Paul Hilfinger.
+
+2003-03-29  Akim Demaille  <akim@epita.fr>
+
+        * m4/error.m4: Do not put under dynamic conditions some code which
+        expansion is under static control.
+
+2003-03-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
+
+2003-03-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Strings are Destroyed): New.
+
+2003-03-13  Paul Eggert  <eggert@twinsun.com>
+
+        * .cvsignore: Add configure.lineno.
+        * src/.cvsignore: Add yacc.
+        * tests/.cvsignore: Add testsuite.log.
+        * doc/fdl.texi: Sync with latest FSF version.
+
+2003-03-12  Paul Eggert  <eggert@twinsun.com>
+
+        * scan-gram.l (YY_USER_INIT): Initialize code_start, too.
+        (<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
+        cursor, instead of leaving it undefined.  This fixes a bug
+        reported by Tim Van Holder in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
+        * tests/input.at (Torturing the Scanner): Test the scanner on
+        an empty input file, which was Tim Van Holder's test case.
+
+        * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
+        <sys/resource.h> can be included, include sys/time.h and
+        sys/times.h first, if available.  This works around the SunOS
+        4.1.4 porting bug reported by Bruce Becker in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
+
+        * m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
+        AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
+        AC_HEADER_SYS_WAIT.
+
+        Merge changes from gnulib.  This was prompted because the CVS
+        snapshot didn't build on Solaris 7 due to strnlen problems.
+
+        These changes need to be merged back into gnulib:
+        * lib/hash.c: Include <stdbool.h> unconditionally.
+        * m4/onceonly.m4 (m4_quote): New macro.
+        (AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
+        Quote AC_FOREACH variable-expansions properly.
+        The 2003-01-03 obstack.h change also needs merging.
+        {end of changes requiring merging}
+
+        * lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
+        m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
+        m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
+        m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
+        m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
+        New files, imported from gnulib.
+        * m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
+        above.
+
+        * lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
+        m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
+        gnulib sources.
+
+        * configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
+        Add.
+        (gl_ERROR): New, replacing jm_PREREQ_ERROR.
+        (gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
+        (gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
+        (gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
+        (gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
+        (gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
+        (gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
+        (jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
+        (jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
+        (jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
+        (jm_PREREQ_ARGMATCH): Remove.
+        (AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
+        * lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
+
+        * src/system.h: Include <stdbool.h> unconditionally.
+
+        * lib/bbitset.h: Include <limits.h> unconditionally.  We have been
+        assuming at least C89 in the bitset code for some time now.
+
+2003-03-03  Akim Demaille  <akim@epita.fr>
+
+        * ro.po: New.
+
+2003-03-02  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Table of Symbols): Reactivate the
+        documentation for %lex-param, and %parse-param.
+
+2003-03-02  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
+        generate verbose error messages.
+        Use the number of tokens as an upper bound in yytname, as it
+        cannot be a non terminal.
+
+2003-03-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
+        message.
+
+2003-03-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
+        Use them to exercise yycheck overrun.
+        Based on Andrew Suffield's grammar.
+
+2003-03-02  Akim Demaille  <akim@epita.fr>
+
+        Create tests/local.at for Bison generic testing macros.
+
+        * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
+        * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
+        This new file.
+        * tests/calc.at (AT_CHECK_CALC): Adjust.
+        * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
+        (AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
+        * tests/local.at: here.
+        (AT_COMPILE_CXX): Tags the tests using it as c++.
+        Ignore the test if CXX is not functional.
+
+2003-03-01  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l (code_start): Initialize it to scanner_cursor,
+        not loc->end, since loc->end might contain garbage and this leads
+        to undefined behavior on some platforms.
+        (id_loc, token_start): Use (IF_LINTed) initial values that do not
+        depend on *loc, so that the reader doesn't give the the false
+        impression that *loc is initialized.
+        (<INITIAL>"%%"): Do not bother setting code_start, since its value
+        does not survive the return.
+
+2003-03-01  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (code_start): Always initialize it when entering
+        into yylex, as SC_EPILOGUE is activated *before* the corresponding
+        yylex invocation.  An alternative would be making it static, but
+        then it starts with the second %%'s beginning, instead of its end.
+
+2003-02-28  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
+        around a UnixWare 7.1.1 porting bug reported by John Hughes in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
+
+2003-02-26  Paul Eggert  <eggert@twinsun.com>
+
+        * README: Mention compiler bug in Sun Forte Developer 6 update 2.
+        Remove Sequent/Pyramid discussion (nobody uses them any more).
+        Merge VMS and MS-DOS discussion; these ports may well be dead
+        but let's keep mentioning them for now.  Put <> around email
+        addresses.  Add copyright notice.
+
+2003-02-24  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yy_reduce_print): yylineno -> yylno,
+        to avoid collision with flex use of yylineno.
+        Problem reported by Bruce Lilly in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
+        * data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
+        * data/yacc.c (yy_reduce_print): Likewise.
+
+        * config/depcomp: Sync with Automake 1.7.3.
+
+2003-02-21  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: Use temporary variables instead of casts to
+        change integer types.
+        Suggested by Paul Eggert.
+
+2003-02-21  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Use "location" consistently to refer to @n,
+        to avoid confusions with lalr1.cc's notion of Position.
+        Suggested by Paul Eggert.
+
+2003-02-20  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (position.hh): Make sure "columns" never pushes
+        before initial_columns.
+        (location.hh): Use consistent variable names when defining the
+        operator<<.
+        Use "last" so that we subtract from Positions, not from unsigned.
+
+2003-02-20  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (position.hh): New subfile, including the extended
+        and Doxygen'ed documentation of class Position.
+        (location.hh): Use it.
+        Document a` la Doxygen.
+        With the help of Benoit Perrot.
+
+2003-02-20  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
+        AT_YACC_IF.
+        Redefine AT_YYERROR_SEES_LOC_IF using it.
+        (_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
+        not defined.
+        Don't use the location in yy::Parser::error_ and
+        yy::Parser::print_ when not %locations.
+        Activate more lalr1.cc tests.
+
+2003-02-19  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: When displaying a line number, be sure to make it
+        an int.
+
+2003-02-19  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
+        Remove, useless.
+        (YYABORT, YYACCEPT, YYERROR): New.
+        * tests/calc.at: Renable the lalr1.cc test.
+
+2003-02-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (AT_CHECK_CALC): Check different scenarios of
+        error recovery, mixing with/without pops and discarding of the
+        lookahead.
+        Exercise YYERROR.
+        Disable the lalr1.cc tests as currently it doesn't support YYERROR.
+
+2003-02-17  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/atlocal.in (LDFLAGS, LIBS): New vars.
+        * tests/testsuite.at (AT_COMPILE): Use them.
+        This fixes the testsuite problem reported by Robert Lentz in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
+
+2003-02-12  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
+        Avoid subscript error in yycheck.  Bug reported by Andrew Suffield in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
+        * data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
+        Check for malloc failure, for consistency with yacc.c.
+        (yytname_size): Remove, for consistency with yacc.c.
+
+        The bug still remains in data/lalr1.cc, as I didn't have time
+        to fix it there.
+
+2003-02-06  Akim Demaille  <akim@epita.fr>
+
+        * configure.ac (GXX): Rename as...
+        (CXX): this, to keep the original Autoconf semantics.
+        Require 2.57.
+        * data/lalr1.cc: Fix b4_copyright invocations.
+        If YYDEBUG is not defined, don't depend upon name_ being defined.
+        (location.hh): Include string and iostream.
+        (Position::filename): New member.
+        (Position::Position ()): New.
+        (operator<< (Position)): New.
+        (operator- (Position, int)): New.
+        (Location::first, Location::last): Rename as...
+        (Location::begin, Location::end): these, to mock the conventional
+        iterator names.
+        (operator<< (Location)): New.
+        * tests/atlocal.in (CXX): New.
+        * tests/testsuite.at (AT_COMPILE_CXX): New.
+        * tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
+        locations in a more synthetic way.
+        (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
+        lalr1.cc is used.
+        Adjust the C locations to match those from Emacs: first column is
+        column 0.
+        Change all the expected results.
+        Conform to the GCS: simplify the locations when applicable.
+        (LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
+        (LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
+        these CPP macros with the m4 macros new defined by...
+        (AT_CHECK_PUSHDEFS): this, i.e.:
+        (AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
+        (AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
+        New macros.
+        (AT_CHECK_POPDEFS): Undefine them.
+        (AT_CHECK_CALC_LALR1_CC): New.
+        Use it for the first lalr1.cc test.
+
+2003-02-04  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
+        Location as is defined.
+
+2003-02-04  Akim Demaille  <akim@epita.fr>
+
+        * data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
+        name_ being defined.
+
+2003-02-03  Paul Eggert  <eggert@twinsun.com>
+
+        * src/gram.h (start_symbol): Remove unused decl.
+
+        Use more-consistent naming conventions for local vars.
+
+        * src/derives.c (derives_compute): Change type of local var from
+        int to rule_number.
+        * src/gram.c (grammar_rules_partial_print): Likewise.
+        * src/print.c (print_core): Likewise.
+        * src/reduce.c (reduce_grammar_tables): Likewise.
+
+        * src/gram.c (grammar_dump): Change name of item_number *
+        local var from r to rp.
+        * src/nullable.c (nullable_compute): Likewise.
+
+        * src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
+
+        * src/gram.h (symbol_number_as_item_number): Use sym, not s,
+        for symbol or symbol_number var.
+        * src/reader.c (grammar_start_symbol_set): Likewise.
+        * src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
+        Likewise.
+        * src/state.c (transitions_to): Likewise.
+        * src/state.h: Likewise.
+        * src/tables.c (symbol_number_to_vector_number): Likewise.
+
+        * src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
+        char * var.
+
+        * src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
+        var.
+
+        * src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
+        var.
+
+        * src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
+        Use str, not s, for char * var.  Use ch, not c, for character var.
+        Use size for size var.
+
+        * src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
+        char * var.
+        (uniqstr_print, uniqst_print_processor): Use ustr, not s, for
+        uniqstr var.
+        * src/uniqstr.h: Likewise.
+
+        * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+        get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+        get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
+        get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
+        param to have same name as that of enum, so that we don't use
+        "s" to stand for a non-state.
+
+2003-02-02  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-skel.l: Scan more than one inert character per yylex
+        invocation.
+
+2003-02-01  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.875a.
+
+        * po/LINGUAS: Add ms.
+
+2003-01-30  Akim Demaille  <akim@epita.fr>
+
+        * doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
+
+2003-01-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
+        of $1.
+
+        Changes in response to error report by S. Eken: GLR mode does not
+        handle negative $ indices or $ indices in embedded rules correctly.
+        See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
+
+        * data/glr.c (b4_rhs_value): Change to use YYFILL macro.
+        (b4_rhs_location): Ditto.
+        (yyfill): New function to copy from stack tree into array
+        incrementally.
+        (yyuserAction): Modify to allow incremental move of semantic values
+        to rhs array when in GLR mode.
+        Define YYFILL to use in user-defined actions to fill semantic array
+        as needed.
+        Remove dummy use of yystack, as there is now a guaranteed use.
+        (yydoAction): Modify to allow incremental move of semantic values
+        to rhs array when in GLR mode.
+        (yyresolveAction): Ditto.
+        (yyglrShiftDefer): Update comment.
+        (yyresolveStates): Use X == NULL for pointers, not !X.
+        (yyglrReduce): Ditto.
+        (yydoAction): Ditto
+
+        * tests/glr-regr1.at: Rename to ...
+        * tests/glr-regression.at: Add new regression test for the problems
+        described above (adapted from S. Eken).
+        Update copyright notice.
+        * tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
+        * tests/Makefile.am: Ditto.
+
+2003-01-28  Paul Eggert  <eggert@twinsun.com>
+
+        * data/lalr1.cc: Do not use @output_header_name@ unless
+        b4_defines_flag is set.  This fixes two bugs reported by
+        Tim Van Holder in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
+        and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
+
+2003-01-21  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
+        we don't need to worry about yyerrlab1 being reported as an
+        "unused label" by non-GCC C compilers.  The downside is that if
+        locations are used then a couple of statements are duplicated each
+        time YYERROR is invoked, but the upside is that the warnings
+        should vanish.
+        (yyerrlab1): Move code to YERROR.
+        (yyerrlab2): Remove.  Change uses back to yyerrlab1.
+        This reverts some of the 2002-12-27 change.
+
+2003-01-17  Paul Eggert  <eggert@twinsun.com>
+
+        * src/output.c (symbol_printers_output): Fix typo that led
+        to core dump.  Problem reported by Antonio Rus in
+        <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
+
+2003-01-13  Akim Demaille  <akim@epita.fr>,
+                Quoc Peyrot <chojin@lrde.epita.fr>,
+                Robert Anisko <anisko_r@lrde.epita.fr>
+
+        * data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
+        when the stacks contain one element, as the loop would otherwise
+        free the last state, and then use the top state (the one we just
+        popped).  This means that the initial elements will not be freed
+        explicitly, as is the case in yacc.c; it is not a problem, as
+        these elements have fake values.
+
+2003-01-11  Paul Eggert  <eggert@twinsun.com>
+
+        * NEWS: %expect-violations are now just warnings, reverting
+        to Bison 1.30 and 1.75 behavior.  This fixes the GCC 3.2
+        bootstrapping problem reported by Matthias Klose; see
+        <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
+        * src/conflicts.c (conflicts_print): Likewise.
+        * tests/conflicts.at (%expect not enough, %expect too much,
+        %expect with reduce conflicts): Likewise.
+        * doc/bison.texinfo (Expect Decl): Document this.  Also mention
+        that the warning is enabled if the number of conflicts changes
+        (not necessarily increases).
+
+        * src/getargs.c (version): Update copyright year.
+
+2003-01-09  Akim Demaille  <akim@epita.fr>
+
+        * src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
+
+2003-01-08  Paul Eggert  <eggert@twinsun.com>
+
+        * Makefile.maint (WGETFLAGS):
+        New macro, containing "-C off" to disable proxy caches.
+        All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
+        (rel-check): Use $(WGET) instead of wget.
+
+2003-01-06  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
+        the GLR paper of Scott, Johnstone and Hussain.
+
+2003-01-04  Paul Eggert  <eggert@twinsun.com>
+
+        * configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
+        (YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
+        * lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
+        (EXTRA_LIBRARIES): New var, for liby.a.
+        * src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
+        (EXTRA_SCRIPTS): New var, for yacc.
+
+        * data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
+        since GNU C++ (as of 3.2.1) does not allow attributes on labels.
+        Problem reported by Nelson H. F. Beebe.
+
+2003-01-03  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
+        (void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
+        when compiling Bison 1.875's `bitset bset = obstack_alloc
+        (bobstack, bytes);'.  Problem reported by Nelson H. F. Beebe.
+
+        * src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
+        ([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
+        grow to a huge size with typical invocation.
+
+        * lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
+        Use the pattern recommended by Autoconf 2.57, except also protect
+        against double-definition.
+        * src/system.h: Likewise.
+        Portability issues reported by Nelson H. F. Beebe.
+
+        * data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
+        All uses changed.  Provide a definition in both C and C++.
+        (yytrue, yyfalse): Define even if defined (__cplusplus).
+
+        * lib/bitset_stats.c (bitset_stats_list): Remove unused var.
+        Reported by Nelson H. F. Beebe.
+
+        * src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
+
+2003-01-02  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c (yyerrlab1): Append `;' after attribute, to
+        pacify the buggy "smart preprocessor" in MacOS 10.2.3.
+        Bug reported by Nelson H. F. Beebe.
+
+2003-01-01  Paul Eggert  <eggert@twinsun.com>
+
+        * Version 1.875.
+
+2002-12-30  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
+        Moved here from...
+        (<INITIAL>","): Here.  This causes stray "," to be treated
+        more uniformly.
+
+        * src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
+        last brace in braced code when not in Yacc mode, for compatibility
+        with Bison 1.35.  This resurrects the 2001-12-15 patch to
+        src/reader.c.
+
+        * src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
+        yystype.  This follows up the 2002-12-24 YYSTYPE bug fix.
+
+2002-12-28  Paul Eggert  <eggert@twinsun.com>
+
+        * src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
+        that of SYM's type.  This fixes Debian bug 168069, reported by
+        Thomas Olsson.
+
+2002-12-28  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75f.
+
+        Switch back to the Yacc style of conflict reports, undoing some
+        of the 2002-07-30 change.
+        * doc/bison.texinfo (Understanding): Use Yacc style for
+        conflict reports.  Also, use new way of locating rules.
+        * src/conflicts.c (conflict_report):
+        Renamed from conflict_report_yacc, removing the old
+        'conflict_report'.  Translate the entire conflict report at once,
+        so that we don't assume that "," has the same interpretation in
+        all languages.
+        (conflicts_output): Use Yacc-style conflict report for each state,
+        instead of our more-complicated style.
+        (conflicts_print): Use Yacc-style conflict report, except print
+        the input file name when not emulating Yacc.
+        * tests/conflicts.at (Unresolved SR Conflicts, Defaulted
+        Conflicted Reduction, %expect not enough, %expect too much,
+        %expect with reduce conflicts): Switch to Yacc-style conflict reports.
+        * tests/existing.at (GNU Cim Grammar): Likewise.
+        * tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
+
+        * src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
+        fatal): Don't invoke fflush; it's not needed and it might even be
+        harmful for stdout, as stdout might not be open.
+        * src/reduce.c (reduce_print): Likewise.
+
+2002-12-27  Paul Eggert  <eggert@twinsun.com>
+
+        Fix a bug where error locations were not being recorded correctly.
+        This problem was originally reported by Paul Hilfinger in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
+
+        * data/yacc.c (yyparse): New local var yylerrsp, to record the
+        top of the location stack's error locations.
+        (yyerrlab): Set it.  When discarding a token, push its location
+        onto yylerrsp so that we don't lose track of the error's end.
+        (yyerrlab1): Now is only the target of YYERROR, so that we can
+        properly record the location of the action that failed.  For GCC
+        2.93 and later, insert an __attribute__ ((__unused__)) to avoid
+        GCC warning about yyerrlab1 being unused if YYERROR is unused.
+        (yyerrlab2): New label, which yyerrlab now falls through to.
+        Compute the error's location by applying YYLLOC_DEFAULT to
+        the locations of all the symbols that went into the error.
+        * doc/bison.texinfo (Location Default Action): Mention that
+        YYLLOC_DEFAULT is also invoked for syntax errors.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
+        Error locations include the locations of all the tokens that were
+        discarded, not just the last token.
+
+2002-12-26  Paul Eggert  <eggert@twinsun.com>
+
+        * src/files.c: Include quote.h.
+        (compute_output_file_names): Warn if we detect conflicting
+        outputs to the same file.  This should catch the misunderstanding
+        exemplified by Debian Bug 165349, reported by Bruce Stephens..
+
+        * src/conflicts.c (conflicts_print): If the user specifies
+        "%expect N", report an error if there are any reduce/reduce
+        conflicts.  This is what the manual says should happen.
+        This fixes Debian bug 130890, reported by Anthony DeRobertis.
+        * tests/conflicts.at (%expect with reduce conflicts): New test.
+
+        Don't use m4_include on relative file names, as it doesn't work as
+        desired if there happens to be a file with that name under ".".
+
+        * m4sugar/version.m4: Remove; it was included but it wasn't used.
+        * data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
+        * data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
+        * data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
+        * src/output.c (output_skeleton): Use full path names when
+        specifying a file to include; don't rely on include path, as
+        it's unreliable when the working file contains a file with
+        that name.
+
+2002-12-25  Paul Eggert  <eggert@twinsun.com>
+
+        Remove obsolete references to bison.simple and bison.hairy.
+        Problem mentioned by Aubin Mahe in
+        <http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
+        * data/glr.c: Comment fix.
+        * doc/bison.1: Remove references.  Also, mention "yacc".
+
+        * src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
+        with -g option.
+
+        * src/parse-gram.y (declaration): Use enum "report_states" rather
+        than its numeric value 1.
+
+        * src/scan-skel.l ("@output ".*\n): Close any old yyout before
+        opening a new one.  This fixes Debian bug 165349, reported by
+        Bruce Stephens.
+
+2002-12-24  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75e.
+
+        * Makefile.maint (cvs-update): Don't assume that the shell
+        supports $(...), as Solaris sh doesn't.
+
+        * src/parse-gram.y (lloc_default): Remove test for empty
+        nonterminals at the end, since it didn't change the result.
+
+2002-12-24  Paul Eggert  <eggert@twinsun.com>
+
+        If the user does not define YYSTYPE as a macro, Bison now declares it
+        using typedef instead of defining it as a macro.  POSIX requires this.
+        For consistency, YYLTYPE is also declared instead of defined.
+
+        %union directives can now have a tag before the `{', e.g., the
+        directive `%union foo {...}' now generates the C code
+        `typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
+        The default union tag is `YYSTYPE', for compatibility with Solaris 9
+        Yacc.  For consistency, YYLTYPE's struct tag is now `YYLTYPE'
+        instead of `yyltype'.
+
+        `yystype' and `yyltype' are now obsolescent macros instead of being
+        typedefs or tags; they are no longer documented and will be
+        withdrawn in a future release.
+
+        * data/glr.c (b4_location_type): Remove.
+        (YYSTYPE): Renamed from yystype.
+        (YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
+        (struct YYLTYPE): Renamed from struct yyltype.
+        (YYLTYPE): Renamed from yyltype.
+        (yyltype, yystype): New (and obsolescent) macros,
+        for backward compatibility.
+        * data/yacc.c: Likewise.
+
+        * data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
+        does not specify a union tag.  This is for compatibility with
+        Solaris 9 yacc.
+
+        * src/parse-gram.y (add_param): 2nd arg is now char * not char
+        const *, since it is now modified by stripping surrounding { }.
+        (current_braced_code): Remove.
+        (PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
+        PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
+        trailing " {...}".  Now of type <chars>.
+        (grammar_declaration): Adjust to bundled tokens.
+        (code_content): Remove; stripping is now done by add_param.
+        (print_token_value): Print contents of bundled tokens.
+        (token_name): New function.
+
+        * src/reader.h (braced_code, current_braced_code): Remove.
+        (token_name): New decl.
+
+        * src/scan-gram.l (handle_dollar, handle_at): Now takes int
+        token_type, not braced_code code_kind.  All uses changed.
+        (SC_PRE_CODE): New state, for scanning after a keyword that
+        has (or usually has) an immediately-following braced code.
+        (token_type): New local var, to keep track of which token type
+        to return when scanning braced code.
+        (<INITIAL>"%destructor", <INITIAL>"%lex-param",
+        <INITIAL>"%parse-param", <INITIAL>"%printer",
+        <INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
+        instead of returning a token type immediately.
+        (<INITIAL>"{"): Set token type.
+        (<SC_BRACED_CODE>"}"): Use it.
+        (handle_action_dollar, handle_action_at): Now returns bool
+        indicating success.  Fail if ! current_rule; this prevents a core dump.
+        (handle_symbol_code_dollar, handle_symbol_code_at):
+        Remove; merge body into caller.
+        (handle_dollar, handle_at): Complain in invalid contexts.
+
+        * NEWS, doc/bison.texinfo: Document the above.
+        * NEWS: Fix years and program names in copyright notice.
+
+2002-12-17  Paul Eggert  <eggert@twinsun.com>
+
+        * NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
+        Reporting, Table of Symbols): Omit mentions of %lex-param and
+        %parse-param from the documentation for now.
+
+2002-12-15  Paul Eggert  <eggert@twinsun.com>
+
+        Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
+        GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
+        lookahead symbol, and which sets yychar in parser actions) and it
+        disagreed with the Bison documentation.  Bug
+        reported by Andrew Walrond.
+
+        * data/yacc.c (YYTRANSLATE): Don't check for negative argument,
+        as the caller now does that.
+        (yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
+        (YYEMPTY): Parenthesize right hand side, since others use it.
+        (yyparse): Don't assume that our generated code is the only code
+        that sets yychar.
+
+2002-12-13  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75d.
+
+        POSIX requires a "yacc" command.
+        * src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
+        (MOSTLYCLEANFILES): Add yacc.
+        (yacc): New rule.
+        * doc/bison.texinfo (Invocation, Bison Options): Mention yacc
+        as an alias for bison y.
+
+        * po/LINGUAS: Add da.
+
+        * src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
+        problem with latest <getopt.h>.
+        (HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
+
+        * doc/fdl.texi: Upgrade to 1.2.
+        * lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
+        lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
+        lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
+        gnulib.
+        * config/install-sh: Sync with autotools.
+
+        Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
+        * data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
+        locations are requested.
+        (union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
+        locations are requested.
+
+2002-12-12  Paul Eggert  <eggert@twinsun.com>
+
+        Remove unportable casts and storage allocation tricks.
+        While we're at it, remove almost all casts, since they
+        usually aren't needed and are a sign of trouble.
+
+        * configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
+
+        * src/derives.c (derives_compute): Do not subtract NTOKENS from
+        the pointer DSET returned by malloc; this isn't portable.
+        Instead, always use DSET[i - NTOKENS] rather than DSET[i].
+        Similarly for DERIVES.
+        * src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
+        * src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
+        * src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
+
+        * src/derives.c (derives_compute): Do not bother invoking
+        int_of_rule_number, since rule numbers are integers.
+
+        * src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
+        rather than XMALLOC (char, N).
+
+        * src/files.c (filename_split): Rewrite to avoid cast.
+
+        * src/gram.h (symbol_number_as_item_number,
+        item_number_as_symbol_number, rule_number_as_item_number,
+        item_number_as_rule_number):
+        Now inline functions rather than macros, to avoid casts.
+        * src/state.h (state_number_as_int): Likewise.
+        * src/tables.c (state_number_to_vector_number,
+        symbol_number_to_vector_number): Likewise.
+
+        * src/gram.h (int_of_rule_number): Remove; no longer used.
+
+        * src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
+        since the resulting storage is always stored into.
+
+        * src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
+        where it's needed.
+
+        * src/muscle_tab.c (muscle_m4_output):
+        Now inline.  Return bool, not int.
+        * src/state.c (state_compare): Likewise.
+        * src/symtab.c (symbol_check_defined,
+        symbol_check_alias_consistency, symbol_pack, symbol_translation,
+        hash_compare_symbol, hash_symbol):
+        Likewise.
+        * src/uniqstr.c (uniqstr_print): Likewise.
+        * src/muscle_tab.c (muscle_m4_output_processor):
+        New function, to avoid casts.
+        * src/state.c (state_comparator, stage_hasher): Likewise.
+        * src/symtab.c (symbol_check_defined_processor,
+        symbol_check_alias_consistency_processor, symbol_pack_processor,
+        symbol_translation_processor, hash_symbol_comparator,
+        hash_symbol_hasher): Likewise.
+        * src/uniqstr.c (uniqstr_print_processor): Likewise.
+        * src/muscle_tab.c (muscles_m4_output):
+        Use new functions instead of casting old functions unportably.
+        * src/state.c (state_hash_new): Likewise.
+        * src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
+        symbols_token_translations_init):
+        Likewise.
+        * src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
+
+        * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
+        var instead of casting to long, to avoid casts.
+        (prepare_states): Use MALLOC rather than alloca, so that we don't
+        have to worry about alloca.
+        * src/state.c (state_hash_lookup): Likewise.
+
+        * src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
+        local var instead of casting to unsigned char, to avoid casts.
+
+        * src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
+        STATE_ALLOC): Remove.
+        (transitions_new, errs_new, reductions_new, state_new): Use malloc
+        rather than calloc, and use offsetof to avoid allocating slightly
+        too much storage.
+        (state_new): Initialize all members.
+
+        * src/state.c (state_hash): Use unsigned accumulator, not signed.
+
+        * src/symtab.c (symbol_free): Remove; unused.
+        (symbol_get): Remove cast in lhs of assignment.
+        (symbols_do): Now static.  Accept generic arguments, not
+        hashing-related ones.
+
+        * src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
+        (symbol_processor): Remove.
+        (symbols_do): Remove decl; now static.
+
+        * src/system.h (alloca): Remove; decl no longer needed.
+        (<stddef.h>): Include, for offsetof.
+        (<inttypes.>, <stdint.h>): Include if available.
+        (uintptr_t): New type, if system lacks it.
+        (CALLOC, MALLOC, REALLOC): New macros.
+        All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
+        new macros.
+
+        * src/tables.c (table_size): Now int, to pacify GCC.
+        (table_grow, table_ninf_remap): Use signed table size.
+        (save_row): Don't bother initializing locals when not needed.
+        (default_goto, goto_actions, pack_vector): Remove unnecessary casts.
+        * src/uniqstr.c (hash_compare_uniqstr):  Likewise.
+
+        * src/vcg.h: Correct misspellings.
+
+        * src/vcg_defaults.h (G_CMAX): Now INT_MAX.
+
+
+        * src/getargs.c (getargs): Don't assume EOF == -1.
+
+2002-12-09  Paul Eggert  <eggert@twinsun.com>
+
+        Change identifier spellings to avoid collisions with names
+        that are reserved by POSIX.
+
+        Don't use names ending in _t, since POSIX reserves them.
+        For consistency, remove _e and _s endings -- they're weren't
+        needed to remove ambiguity.  All uses changed.
+        * src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
+        turn was just renamed from struniq_t.
+        * src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
+        which in turn was just renamed from struniq_processor_t.
+        (hash_compare_uniqstr): Renamed from hash_compare_struniq, which
+        in turn was renamed from hash_compare_struniq_t.
+        * src/LR0.c (struct state_list): Renamed from struct state_list_s.
+        (state_list): Renamed from state_list_t.
+        * src/assoc.h (assoc): Renamed from assoc_t.
+        * src/conflicts.c (enum conflict_resolution): Renamed from
+        enum conflict_resolution_e.
+        * src/derives.c (struct rule_list): Renamed from struct rule_list_s.
+        (rule_list): Renamed from rule_list_t.
+        * src/getargs.h (enum trace): Renamed from enum trace_e.
+        (enum report): Renamed from enum report_e.
+        * src/gram.h (item_number): Renamed from item_number_t.
+        (rule_number): Renamed from rule_number_t.
+        (struct rule_s): Remove the "rule_s" part; not used.
+        (rule): Renamed from rule_t.
+        (rule_filter): Renamed from rule_filter_t.
+        * src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
+        (goto_list): Renamed from goto_list_t.
+        * src/lalr.h (goto_number): Renamed from goto_number_t.
+        * src/location.h (location): Renamed from location_t.
+        * src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
+        and moved here from:
+        * src/muscle_tab.h (muscle_entry_t): here.
+        * src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
+        (rule_list): Renamed from rule_list_t.
+        * src/print_graph.c (static_graph): Renamed from graph.
+        * src/reader.h (braced_code): Renamed from braced_code_t.
+        Remove brace_code_e tag.
+        * src/relation.h (relation_node): Renamed from relation_node_t.
+        (relation_nodes): Renamed from relation_nodes_t.
+        (relation): Renamed from relation_t.
+        * src/state.h (state_number): Renamed from state_number_t.
+        (struct state): Renamed from struct state_s.
+        (state): Renamed from state_t.
+        (transitions): Renamed from transitions_t.  Unused (and
+        misspelled) transtion_s tag removed.
+        (errs): Renamed from errs_t.  Unused errs_s tag removed.
+        (reductions): Renamed from reductions_t.  Unused tag
+        reductions_s removed.
+        * src/symlist.h (symbol_list): Renamed from symbol_list_t.
+        (struct symbol_list): Renamed from struct symbol_list_s.
+        * src/symtab.h (symbol_number): Renamed from symbol_number_t.
+        (struct symbol): Renamed from struct symbol_s.
+        (symbol): Renamed from symbol_t.
+        * src/tables.c (vector_number): Renamed from vector_number_t.
+        (action_number): Renamed from action_t.
+        * src/tables.h (base_number): Renamed from base_t.
+        * src/vcg.h (enum color): Renamed from enum color_e.
+        (enum textmode): Renamed from enum textmode_e.
+        (enum shape): Renamed from enum shape_e.
+        (struct colorentry): Renamed from struct colorentry_s.
+        (struct classname): Renamed from struct classname_s.
+        (struct infoname): Renamed from struct infoname_s.
+        (enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
+        (enum decision): Renamed from enum decision_e.
+        (enum orientation): Renamed from enum orientation_e.
+        (enum alignment): Renamed from enum alignment_e.
+        (enum arrow_mode): Renamed from enum arrow_mode_e.
+        (enum crossing_type): Renamed from enum crossing_type_e.
+        (enum view): Renamed from enum view_e.
+        (struct node): Renamed from struct node_s.
+        (node): Renamed from node_t.
+        (enum linestyle): Renamed from enum linestyle_e.
+        (enum arrowstyle): Renamed from enum arrowstyle_e.
+        (struct edge): Renamed from struct edge.
+        (edge): Renamed from edge_t.
+        (struct graph): Renamed from struct graph_s.
+        (graph): Renamed from graph_t.
+        * tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
+        Rename value_t -> value.
+        * tests/input.at (Torturing the Scanner): Rename value_t -> value,
+        value_t_as_yystype -> value_as_yystype.
+
+        Don't include <errno.h> in the mainstream code, since it
+        reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
+        * lib/get-errno.c, lib/get-errno.h: New files.
+        * lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
+        get-errno.c.
+        * src/files.c (xfopen, xfclose): Use get_errno instead of errno.
+        * src/output.c (output_skeleton): Likewise.
+        * src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
+        instead of errno.
+        (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
+        Likewise.
+        (handle_action_dollar, handle_action_at): Likewise.
+        * src/system.h: Do not include <errno.h>.
+        (TAB_EXT): Renamed from EXT_TAB.
+        (OUTPUT_EXT): Renamed from EXT_OUTPUT.
+
+        Avoid str[a-z]*, since <string.h> reserves that name space.
+        Change all instances of "struniq" in names to "uniqstr", and
+        likewise for "STRUNIQ" and "UNIQSTR".
+        * src/uniqstr.c: Renamed from src/struniq.c.
+        * src/uniqstr.h: Renamed from src/struniq.h.
+        * src/Makefile.am (bison_SOURCES): Adjust to these renamings.
+        * src/files.c (strsuffix): Remove; unused.
+        (concat2): Renamed from stringappend.  Now static.
+        * src/files.h (strsuffix, stringappend): Remove; unused.
+        * src/parse-gram.y (<chars>): Renamed from <string>.
+        (<uniqstr>): Renamed from <struniq>.
+        * src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
+        * src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
+        (struct graph_s.expand): Renamed from struct graph_s.stretch.
+        * src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
+        (G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
+        (N_EXPAND): Renamed from N_STRETCH.
+
+        Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
+        * data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
+        * src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
+        Remove; unused.
+        * src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
+        * src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
+        * src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
+        * src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
+        (BASE_MAXIMUM): Renamed from BASE_MAX.
+        (BASE_MINIMUM): Renamed from BASE_MIN.
+        (ACTION_MAX): Remove; unused.
+        (ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
+        Unnecessary casts removed from above defines.
+
+
+        Fix misspelling in names.
+        * src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
+        * src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
+        G_NODE_ALIGNEMENT.
+
+
+        * lib/timevar.c (timevar_report): Renamed from time_report,
+        for consistency with other names.
+        * lib/timevar.h (timevar_report): New decl.
+        * src/system.h (time_report): Remove; decl is now in lib/timevar.h.
+
+
+        Sort include-file uses.
+
+        Reorder all include files under src to be in the order "system.h".
+        then the ../lib include files in angle brackets (alphabetized),
+        then the . include files in double-quotes (alphabetized).  Fix
+        dependency breakages encountered in this process, as follows:
+        * src/closure.h, src/derives.h, src/state.h: Include "gram.h".
+        * src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
+        * src/state.h: Include "symtab.h".
+
+2002-12-08  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
+        since this causes problems when __file__ contains character
+        sequences like "@" that are treated specially by src/scan-skel.l.
+        Instead, just use the file's basename.  This fixes the bug
+        reported by Martin Mokrejs in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
+
+2002-12-06  Paul Eggert  <eggert@twinsun.com>
+
+        Add support for rules that do not have trailing semicolons, as
+        POSIX requires.  Improve the quality of locations in Bison
+        diagnostics.
+
+        * src/location.c: Include <quotearg.h>.
+        (empty_location): Now const.
+        (location_print): New function.  Follow the recommendation of the
+        GNU Coding Standards for locations that span file boundaries.
+        * src/location.h: Do not include <quotearg.h>; no longer needed.
+        (boundary): New type.
+        (location_t): Use it.  This allows locations to span file boundaries.
+        All member uses changed: file -> start.file or end.file (as needed),
+        first_line -> start.line, first_column -> start.column,
+        last_line -> end.line, last_column -> end.column.
+        (equal_boundaries): New function.
+        (LOCATION_RESET, LOCATION_STEP): Remove.
+        (LOCATION_PRINT): Remove.  All callers changed to use location_print.
+        (empty_location): Now const.
+        (location_print): New decl.
+        * src/parse-gram.y (lloc_default): New function, which handles
+        empty locations more accurately.
+        (YYLLOC_DEFAULT): Use it.
+        (%token COLON): Remove.
+        (%token ID_COLON): New token.
+        (rules): Use it.
+        (declarations, rules): Remove trailing semicolon.
+        (declaration, rules_or_grammar_declaration):
+        Allow empty (";") declaration.
+        (symbol_def): Remove empty actions; no longer needed.
+        (rules_or_grammar_declaration): Remove trailing semicolon.
+        (semi_colon.opt): Remove.
+        * src/reader.h: Include location.h.
+        (scanner_cursor): New decl.
+        * src/reduce.c (nonterminals_reduce): Use warn_at rather than
+        rolling our own.
+        * src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
+        of *loc.
+        (STEP): Remove.  No longer needed, now that adjust_location does
+        the work.  All uses removed.
+        (scanner_cursor): New var.
+        (adjust_location): Renamed from extend_location.  It now sets
+        *loc and adjusts the scanner cursor.  All uses changed.
+        Don't bother testing for CR.
+        (handle_syncline): Remove location arg; now updates scanner cursor.
+        All callers changed.
+        (unexpected_end_of_file): Now accepts start boundary of token or
+        comment, not location.  All callers changed.  Update scanner cursor,
+        not the location.
+        (SC_AFTER_IDENTIFIER): New state.
+        (context_state): Renamed from c_context.  All uses changed.
+        (id_loc, code_start, token_start): New local vars.
+        (<INITIAL,SC_AFTER_IDENTIFIER>): New initial context.  Move all
+        processing of Yacc white space and equivalents here.
+        (<INITIAL>{id}): Save id_loc.  Begin state SC_AFTER_IDENTIFIER
+        instead of returning ID immediately, since we need to search for
+        a subsequent colon.
+        (<INITIAL>"'", "\""): Save token_start.
+        (<INITIAL>"%{", "{", "%%"): Save code_start.
+        (<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
+        (<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
+        BEGIN context_state at end, not INITIAL.
+        (<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
+        <SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
+        Return correct token start.
+        (<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
+        the start of a character, string or multiline comment is found.
+        * tests/conflicts.at (S/R in initial, Defaulted Conflicted
+        Reduction): Adjust reported locations to match the more-precise
+        results now expected.
+        * tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
+        * tests/reduce.at (Useless Rules, Reduced Automaton,
+        Underivable Rules): Likewise.
+        * tests/regression.at (Invalid inputs): No longer `expecting ";"
+        or "|"' now that so many other tokens are allowed by the new grammar.
+
+        * src/complain.h (current_file): Remove duplicate decl;
+        current_file is now owned by files.h.
+        * src/complain.c, src/scan-gram.l: Include files.h.
+
+2002-12-06  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
+        promotes to int; it might be unsigned int.
+        * data/yacc.c (yy_reduce_print): Likewise.
+
+        * doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
+        be #defined in the prologue, not in the Bison declarations.
+        This fixes Debian Bug 102878, reported by Shaul Karl.
+
+2002-12-02  Paul Eggert  <eggert@twinsun.com>
+
+        * configure.ac (AC_REPLACE_FUNCS): Add strtoul.
+        * lib/strtoul.c: New file, from gnulib.
+        This fixes a porting bug reported by Peter Klein in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
+
+2002-11-30  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
+        and put only a forward declaration in the prologue.  This is for
+        consistency with the other scanner helper functions.
+
+        Type clashes now generate warnings, not errors, since it
+        appears that POSIX may allow some grammars with type clashes.
+        * src/reader.c (grammar_current_rule_check): Warn about
+        type clashes instead of complaining.
+        * tests/input.at (Type Clashes): Expect warnings, not complaints.
+
+        Add Yacc library, since POSIX requires it.
+        * doc/bison.texinfo (Yacc Library): New node.  Regenerate top menu.
+        * lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
+        * lib/main.c, lib/yyerror.c: New files.
+
+        gram_error can be static; it need not be extern.
+        * src/reader.h (gram_error): Remove decl.
+        * src/parse-gram.y (gram_error): Now static.  Add static decl.
+        (print_token_value): Omit parameter names from forward decl,
+        for consistency.
+
+2002-11-29  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo: Emphasize that yylex and yyerror must
+        be declared before being used.  E.g., one should typically
+        declare them in the prologue.  Use GNU coding style in examples.
+        Put "const" consistently after the type it modifies.  Mention
+        that C99 supports "inline".  Mention that yyerror traditionally
+        returns "int".
+
+        %parse-param and %lex-param now take just one argument, the
+        declaration; the argument name is deduced from the declaration.
+
+        * doc/bison.texinfo (Parser Function, Pure Calling, Error
+        Reporting, Table of Symbols): Document this.
+        * src/parse-gram.y (add_param): New function.
+        (COMMA): Remove.
+        (declaration): Implement new rule for %parse-param and %lex-param.
+        * src/scan-gram.l: "," now elicits a warning, rather than being
+        a token; this is more compatible with byacc.
+        * tests/calc.at (Simple LALR Calculator): Adopt new convention.
+
+2002-11-27  Paul Eggert  <eggert@twinsun.com>
+
+        Rename identifiers to avoid real and potential collisions.
+
+        * data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
+        to avoid collision with lex macro described by Bruce Lilly in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
+        * doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
+        * src/parse-gram.y (print_token_value): Renamed from yyprint.
+        All uses changed.
+        (YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove.  All uses changed.
+        The name "yycontrol" violates the name space rules, and this stuff
+        wasn't being used anyway.
+        (input): Remove action; this stuff wasn't being used.
+        (gram_error): Rename local variable yylloc -> loc.
+        * src/reader.h (struct gram_control_s, gram_control_t): Remove.
+        (YY_DECL): Don't use "yy" at start of local variables.
+        All uses changed, e.g., yylloc -> loc.
+        * src/scan-gram.l (STEP): Renamed from YY_STEP.  All uses changed.
+        (STRING_GROW): Renamed from YY_OBS_GROW.  All uses changed.
+        (STRING_FINISH): Renamed from YY_OBS_FINISH.  All uses changed.
+        (STRING_FREE): Renamed from YY_OBS_FREE.  All uses changed.
+
+        * src/parse-gram.y (gram_error): loc is now const *.
+        * src/reader.h (gram_error): Likewise.
+
+2002-11-24  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75c.
+
+        * tests/actions.at (Actions after errors): Use an output format
+        more similar to that of the Printers and Destructors test.
+        Test the position of the ';' token too.
+        (Printers and Destructors): Likewise.
+        (Printers and Destructors: %glr-parser): Remove for now, to avoid
+        unnecessarily alarming people when the test fails.
+
+        * data/yacc.c (yyerrlab1): Move this label down, so that the
+        parser does not discard the lookahead token if the user code
+        invokes YYERROR.  This change is required for POSIX conformance.
+
+        * lib/error.c: Sync with gnulib.
+
+2002-11-22  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
+        * lib/mbswidth.c, lib/mbswidth.h: Likewise.
+        * lib/xmalloc.c: Likewise.
+
+2002-11-20  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
+
+2002-11-20  Paul Eggert  <eggert@twinsun.com>
+
+        Avoid use of <assert.h>, as the GNU Coding Standards hint that one
+        should use `if (! x) abort ();' rather than `assert (x);', and
+        anyway it's one less thing to worry about configuring.
+
+        * data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
+        and replace all instances of assert with abort.
+        * tests/calc.at (_AT_DATA_CALC_Y): Likewise.
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
+
+        * data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
+        yyresolveAction, yyprocessOneStack): Use abort rather than assert.
+        * lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
+        hash_find_entry, hash_rehash, hash_insert): Likewise.
+        * src/conflicts.c (resolve_sr_conflict): Likewise.
+        * src/lalr.c (set_goto_map, map_goto): Likewise.
+        * src/nullable.c (nullable_compute): Likewise.
+        * src/output.c (prepare_rules, token_definitions_output): Likewise.
+        * src/reader.c (packgram, reader): Likewise.
+        * src/state.c (state_new, state_free, state_transitions_set,
+        state_reduction_find): Likewise.
+        * src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
+        symbol_pack): Likewise.
+        * src/tables.c (conflict_row, pack_vector): Likewise.
+        * src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
+        get_layoutalgorithm_str, get_decision_str, get_orientation_str,
+        get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
+        get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
+
+        * lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
+        (ARGMATCH_CONSTRAINT): New macro.
+        (ARGMATCH_ASSERT): Use it.
+
+        * src/system.h (verify): New macro.
+        * src/getargs.c (trace_argmatch, report_argmatch): Use verify
+        rather than assert.
+        * src/tables.c (tables_generate): Likewise.
+
+        * src/struniq.c (struniq_assert): Now returns void, and aborts
+        if the assertion is false.
+        (struniq_assert_p): Remove.
+        * src/struniq.h: Likewise.
+
+2002-11-18  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yygetLRActions): Replace `yyindex' with
+        `yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
+        This fixes the regression with Sun ONE Studio 7 cc that I reported in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
+
+2002-11-18  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
+        space.
+        From Tim Van Holder.
+
+2002-11-17  Paul Eggert  <eggert@twinsun.com>
+
+        Pacify Sun ONE Studio 7 lint.  Also, rename "ParseError"
+        to "SyntaxError" for consistency with my 2002-11-15 change.
+
+        * data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
+        not define to {}, since this breaks the common use of `YYDPRINTF
+        ((...));' if a single statement is desired (e.g. before `else').
+        Work around GCC warnings by surrounding corresponding calls with
+        {} if needed.
+        (yyhasResolvedValue): Remove unused function.
+        (yymergeOptionSets, yyresolvStack): Use `continue;' for empty
+        loop body.
+        (yyreportSyntaxError): Renamed from yyreportParseError.
+        (yyrecoverSyntaxError): Renamed from yyrecoverParseError.
+        All uses changed.
+        * tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
+        extern when possible.  Remove unused initializations.
+
+2002-11-16  Akim Demaille  <akim@epita.fr>
+
+        Augment the similarity between GLR and LALR traces.
+
+        * data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
+        (YY_REDUCE_PRINT): New.
+        (yyparse): Use them.
+        * data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
+        YYDPRINT here.
+        (yyglrReduce, yyrecoverParseError, yyparse): Don't report the
+        state reached after the reduction/recovery, since...
+        (yyparse, yyprocessOneStack): Report the state we are entering in.
+
+2002-11-16  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
+        Add support for --trace=skeleton.
+        * src/scan-skel.l: %option debug.
+        Scan strings of non-@ or \n instead of character by character.
+        (scan_skel): Handle trace_skeleton.
+        (QPUTS): New.
+        (@output_parser_name@, @output_header_name@): ``Restore'' their
+        support (used to be M4 macros).
+        * data/yacc.c: Quote larger chunks, a la glr.c.
+        * data/lalr1.cc: Likewise.
+        The header guards are no longer available, so use some other
+        string than `YYLSP_NEEDED'.
+
+2002-11-16  Akim Demaille  <akim@epita.fr>
+
+        Make the ``Printers and Destructors'' test more verbose, taking
+        `yacc.c''s behavior as (possibly wrong) reference.
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
+        instead of fprint on stdout.
+        Set and report the last_line of the symbols.
+        Consistently display values and locations.
+
+2002-11-16  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c: Avoid over-quoting of __line__ and __file__.
+
+2002-11-15  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/actions.at (Actions after errors): New test case.
+
+        * data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
+        src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
+        tests/action.at, tests/calc.at, tests/conflicts.at,
+        tests/cxx-type.at, tests/regression.at:
+        "parse error" -> "syntax error" for POSIX compatibility.
+        "parsing stack overflow..." -> "parser stack overflow" so
+        that code matches Bison documentation.
+
+2002-11-15  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (declaration): Have %parse-param and %lex-param
+        take two BRACED_CODE, not two string_content.
+        Free the scanner's obstack when we are done.
+        (code_content): New.
+        * tests/calc.at: Adjust.
+        * doc/bison.texinfo: Adjust.
+        Also, make sure to include the `,' for these declarations.
+
+2002-11-15  Tim Van Holder  <tim.van.holder@pandora.be>
+
+        * m4/prereq.m4: Removed the commented jm_PREREQ_HASH
+        definition; avoids potential autoreconf problems.
+
+2002-11-15  Akim Demaille  <akim@epita.fr>
+
+        Always check the value returned by yyparse.
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
+        returned by yyparse.
+        (_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
+        Adjust calls.
+        * tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
+        returned by yyparse.
+
+2002-11-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/glr.c (yyFail): Always set yyerrflag.  Corrects regression
+        on input.at test.
+
+2002-11-14  Paul Eggert  <eggert@twinsun.com>
+
+        * src/output.c (output_skeleton): Call xfopen instead of
+        duplicating xfopen's body.
+
+        Fix bugs reported by Nelson H. F. Beebe in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
+
+        * tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
+        "$CC -E foo.h" is allowed, as this doesn't work with the Portland
+        Group compiler.  Instead, use "$CC -E bar.c".  Include the .h
+        file twice in the grammar, as an extra check.
+
+        * tests/input.at (Torturing the Scanner): Surround the
+        backslash-newline tests with "#if 0", to make it less likely that
+        we'll run into compiler bugs.  Bring back solitary \ inside
+        comment, but add a closing comment to work around HP C bug.  Don't
+        test backslash-newline in C character constant.
+
+2002-11-14  Akim Demaille  <akim@epita.fr>
+
+        * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
+        status of the compiler.
+        Calling `exit 1' is no longer needed.
+        Reported by Nelson H. F. Beebe.
+
+2002-11-14  Akim Demaille  <akim@epita.fr>
+
+        * tests/atlocal.in (CPPFLAGS): We have config.h.
+        * tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
+        New.
+        * tests/actions.at, tests/calc.at, tests/conflicts.at,
+        * tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
+        * tests/regression.at, tests/torture.at: Use them for all the
+        grammars that are to be compiled.
+        * tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
+        * tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
+        * doc/bison.texinfo (GLR Parsers): Document `inline'.
+
+2002-11-14  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Various formatting changes (alignments in
+        samples, additional @group/@end group, GCS in samples.
+        Use @deffn instead of simple @table to define the directives,
+        macros, variables etc.
+
+2002-11-13  Paul Eggert  <eggert@twinsun.com>
+
+        Fix some bugs reported by Albert Chin-A-Young in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
+
+        * tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
+        -o c"; the HP C compiler chatters during compilation.
+        Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
+        * tests/headers.at (export YYLTYPE): Likewise.
+
+        * tests/input.at (Torturing the Scanner): Remove lines containing
+        solitary backslashes, as they tickle a bug in the HP C compiler.
+
+        * tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
+        comments, since they're not portable.  Use GNU coding style.
+
+2002-11-13  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c: Leave bigger chunks of quoted text.
+        (YYDSYMPRINTF): New.
+        Use it to report symbol activities.
+        * data/glr.c (YYDSYMPRINTF): New.
+        Use it.
+
+2002-11-12  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75b.
+
+        * data/glr.c (yydoAction): Return YYRESULTTAG, not int.
+        (yyglrReduce): Return yyok, not 0.
+        This should avoid the enumerated-type warnings reported
+        by Nelson H. F. Beebe in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
+
+        * lib/bbitset.h (BITSET_INLINE): Remove.
+        * lib/bitset.h [! BITSET_INLINE]: Remove.
+        (bitset_set, bitset_reset, bitset_test): Rename local vars
+        to avoid shadowing warnings by GCC.
+
+        * data/glr.c (inline): Remove #define.  It's the user's
+        responsibility to #define it away, just like 'const'.
+        This fixes one of the bugs reported by Nelson H. F. Beebe in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
+
+        * Makefile.maint (po-check): Scan .l and .y files instead of the
+        .c and the .h files that they generate.  This fixes the bug
+        reported by Tim Van Holder in:
+        <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
+        Look for N_ as well as for _.  Try to avoid matching #define for
+        N_ and _.
+        * po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
+        src/system.h.  Add src/parse-gram.y, src/scan-gram.l.
+        * src/scan-gram.l: Revamp regular expressions so that " and '
+        do not confuse xgettext.
+
+        * src/struniq.h (struniq_new): Do not declare the return type
+        to be 'const'; this violates the C standard.
+        * src/struniq.c (struniq_new): Likewise.
+
+2002-11-12  Albert Chin-A-Young <china@thewrittenword.com>
+
+        * src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
+        duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
+        linker.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Sync with Autoconf:
+        (local_updates): New.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * po/POTFILES.in (src/lalr.c, src/state.c): Remove
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
+        locations.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
+        not yyvalue.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
+        Use it to test the GLR parser.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
+        defines it.
+        * data/glr.c (yystos): New.
+        (b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
+        (YYDSYMPRINT): New.
+        (yyval): Don't define it, it is handled via M4.
+        (yyrecoverParseError): Free verbosely the discarded symbols.
+        * data/yacc.c (yysymprint): Remove, rather...
+        (b4_yysymprint_generate): invoke.
+        * data/c.m4 (b4_yysymprint_generate): New.
+        Accept pointers as arguments, as opposed to the version from
+        yacc.c.
+        (b4_yydestruct_generate): Likewise.
+        * tests/cations.at (Printers and Destructors): Use Bison directives
+        instead of CPP macros.
+        Don't rely on internal details.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
+        * data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
+        Don't work on yychar (i.e., do set it to YYEMPTY, don't match
+        it against YYEMPTY and so forth), work on yytoken (i.e., set
+        it to YYEMPTY etc.).
+        (yydestruct): Replace with a b4_yydestruct_generate invocation.
+        (b4_symbol_actions): Remove.
+        * data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
+        for 0, end-of-input.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Destructor Decl): New.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/tables.c (tables_generate): Use free for pointers that
+        cannot be NULL, not XFREE.
+        (pack_vector): Use assert, not fatal, for bound violations.
+        * src/state.c (state_new): Likewise.
+        * src/reader.c (reader): Likewise.
+        * src/lalr.c (set_goto_map): Likewise.
+        * src/location.h (LOCATION_PRINT): If first_line is 0, just issue
+        the file name.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l, src/reader.h (scanner_last_string_free):
+        Restore.
+        * src/scan-gram.l (last_string): Is global to the file, not to
+        yylex.
+        * src/parse-gram.y (input): Don't append the epilogue here,
+        (epilogue.opt): do it here, and free the scanner's obstack.
+        * src/reader.c (epilogue_set): Rename as...
+        (epilogue_augment): this.
+        * data/c.m4 (b4_epilogue): Defaults to empty.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (long_options): Remove duplicates.
+        * src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
+        Remove.
+        * doc/bison.rnh: Remove.
+        * doc/bison.texinfo (VMS Invocation): Remove.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/struniq.h, src/struniq.c (struniq_t): Is const.
+        (STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
+
+        Use struniq for symbols.
+
+        * src/symtab.h (symbol_t): The tag member is a struniq.
+        (symbol_type_set): Adjust.
+        * src/symtab.c (symbol_new): Takes a struniq.
+        (symbol_free): Don't free the tag member.
+        (hash_compare_symbol_t, hash_symbol_t): Rename as...
+        (hash_compare_symbol, hash_symbol): these.
+        Use the fact that tags as struniqs.
+        (symbol_get): Use struniq_new.
+        * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
+        Returns a strniq.
+        * src/reader.h (merger_list, grammar_currentmerge_set): The name
+        and type members are struniqs.
+        * src/reader.c (get_merge_function)
+        (grammar_current_rule_merge_set): Adjust.
+        (TYPE, current_type): Are struniq.
+
+        Use struniq for file names.
+
+        * src/files.h, src/files.c (infile): Split into...
+        (grammar_file, current_file): these.
+        * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
+        * src/reduce.c (reduce_print): Likewise.
+        * src/getargs.c (getargs): Likewise.
+        * src/complain.h, src/complain.c: Likewise.
+        * src/main.c (main): Call struniqs_new early enough to use it for
+        file names.
+        Don't free the input file name.
+
+2002-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c (symbol_free): Remove dead deactivated code:
+        type_name are properly removed.
+        Don't use XFREE to free items that cannot be NULL.
+        * src/struniq.h, src/struniq.c: New.
+        * src/main.c (main): Initialize/free struniqs.
+        * src/parse-gram.y (%union): Add astruniq member.
+        (yyprint): Adjust.
+        * src/scan-gram.l (<{tag}>): Return a struniq.
+        Free the obstack bit that used to store it.
+        * src/symtab.h (symbol_t): The 'type_name' member is a struniq.
+
+2002-11-11  Paul Eggert  <eggert@twinsun.com>
+
+        Revamp to fix many (but not all) of the C- and M4-related quoting
+        problems.  Among other things, this fixes the Bison bug reported
+        by Jan Hubicka when processing the Bash grammar; see:
+        <http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
+
+        Use new @ escapes consistently.  Represent brackets with @{ and @}
+        rather than @<:@ and @:>@, since this works a bit better with dumb
+        editors like vi.  Represent @ with @@, since @ is now consistently
+        an escape.  Use @oline@ and @ofile@ rather than __oline__ and
+        __ofile__, to avoid unexpected expansions.  Similarly, use @output
+        rather than #output.
+
+        * data/c.m4 (b4_copyright): Omit file name from comment, since
+        the file name could contain "*/".
+        (b4_synclines_flag): Don't quote the 2nd argument; it should already
+        be quoted.  All uses changed.
+
+        * data/glr.c: Use new @ escapes consistently.
+        (b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
+        b4_output_header_suffix, b4_output_header_name, b4_header_guard):
+        Remove, since they couldn't handle arbitrary characters in file
+        names.
+        * data/lalr1.cc: Likewise.
+        * data/yacc.c: Likewise.
+
+        * src/files.c (output_infix): Remove; all uses removed.
+        * src/files.h: Likewise.
+
+        * data/glr.c: Remove use of "#ifdef b4_header_guard", since it
+        mishandled funny characters in file names, and anyway it isn't
+        needed any more.
+        * data/yacc.c: Likewise.
+        * data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
+
+        * data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
+        * data/yacc.c: Likewise.
+
+        * src/muscle_tab.c: Include quotearg.h, since we need to quote C
+        strings now.
+        (muscle_init): Quote filename as a C string.
+        * src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
+        (MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
+        * src/output.c (escaped_file_name_output): New function.
+        (prepare_symbols): Quote tokens for M4.
+        (prepare): Don't insert output_infix, output_prefix,
+        output_parser_name, output_header_name; this is now down by scan-skel.
+        Insert skeleton as a C string.
+
+        * src/output.c (user_actions_output, symbol_destructors_output,
+        symbol_printers_output): Quote filenames for C and M4.
+        * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+        * src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
+        escapes other than \\ and \'; this simplifies the code.
+        (<SC_STRING>): Likewise, for \\ and \".
+        (<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
+        SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
+        Use new escapes @{ and @} for [ and ].
+
+        * src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
+        them with auto vars.
+        Switch to new escape scheme, where @ is the escape character uniformly.
+        Abort if a stray escape character is found.  Avoid unbounded input
+        buffer when parsing non-escaped text.
+
+        * tests/input.at (Torturing the Scanner): Add tests that @oline@,
+        __oline__, #output, $@, and @{ do not have unintended meanings.
+
+2002-11-09  Paul Eggert  <eggert@twinsun.com>
+
+        Fix the test failure due to GCC warnings described in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
+        * data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
+        evaluate to 0 if it's impossible for NINF to be in the respective
+        table.
+        (yygetLRActions, yyrecoverParseError): Use them.
+
+        * src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
+        counted in the token inserted at end of file.  Now takes
+        location_t *, not location_t, so that the location can be
+        adjusted.  All uses changed.
+
+        * tests/regression.at (Invalid inputs): Adjust wording in
+        diagnostic to match the new behavior.
+
+        * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
+        AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
+        AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
+        abort ();'.  This reduces the runtime of the "Many lookaheads"
+        test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
+        GCC 3.2.
+
+2002-11-07  Paul Eggert  <eggert@twinsun.com>
+
+        * src/parse-gram.y (CHARACTER): Remove unused token.
+        All uses removed.
+
+        * src/scan-gram.l: Remove stack option.  We no longer use the
+        stack, since the stack was never deeper than 1; instead, use the
+        new auto var c_context to record the stacked value.
+
+        Remove nounput option.  At an unexpected end of file, we now unput
+        the minimal input necessary to end cleanly; this simplifies the
+        code.
+
+        Avoid unbounded token sizes where this is easy.
+
+        (unexpected_end_of_file): New function.
+        Use it to systematize the error message on unexpected EOF.
+        (last-string): Now auto, not static.
+        (YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
+        (scanner_last_string_free): Remove; not used.
+        (percent_percent_count): Move decl to just before use.
+        (SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
+        not the (never otherwised-used) CHARACTER.
+
+2002-11-07  Akim Demaille  <akim@epita.fr>
+
+        Let yyerror always receive the msg as last argument, so that
+        yyerror can be variadic.
+
+        * data/yacc.c (b4_yyerror_args): New.
+        Use it when calling yyerror.
+        * data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
+        Use it when calling yyerror.
+        * doc/bison.texinfo (Error Reporting): Adjust.
+        * tests/calc.at (_AT_DATA_CALC_Y): Adjust.
+        * tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
+
+2002-11-06  Akim Demaille  <akim@epita.fr>
+
+        #line should have quoted strings.
+        Ideally, this should be done by m4_quotearg.
+
+        * src/scan-skel.l: Include quotearg.h.
+        Quote __ofile__.
+        * src/output.c (symbol_printers_output)
+        (symbol_destructors_output): Quote the file name.
+
+2002-11-06  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Invalid inputs): Adjust to the recent
+        messages.
+
+2002-11-06  Akim Demaille  <akim@epita.fr>
+
+        Restore --no-lines.
+        Reported by Jim Kent.
+
+        * data/c.m4 (b4_syncline): New.
+        * data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
+        * src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
+        * src/output.c (user_actions_output): Likewise.
+        (prepare): Define 'b4_synclines_flag'.
+        * src/muscle_tab.c (muscle_init): Don't define b4_linef.
+
+2002-11-06  Akim Demaille  <akim@epita.fr>
+
+        * src/main.c (main): Free `infile'.
+        * src/scan-gram.l (handle_syncline): New.
+        Recognize `#line'.
+        * src/output.c (user_actions_output, symbol_destructors_output)
+        (symbol_printers_output): Use the location's file name, not
+        infile.
+        * src/reader.c (prologue_augment, epilogue_set): Likewise.
+
+2002-11-05  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * src/tables.c (matching_state): Don't allow states to match if
+        either has GLR conflict entries.
+
+2002-11-05  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l: Use more accurate diagnostics, e.g.
+        "integer out of range" rather than "invalid value".
+        * tests/input.at (Invalid $n, Invalid @n): Change expected wording
+        accordingly.
+
+        Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
+        Also, remove one static variable in the scanner.
+
+        * src/scan-gram.l (braces_level): Now auto, not static.
+        Initialize to zero if the compiler is being picky.
+        (INITIAL): Clear braces_level instead of incrementing it.
+        (SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
+        as POSIX 1003.1-2001 requires.
+        * src/system.h (IF_LINT): New macro, taken from coreutils.
+        * configure.ac: Define "lint" if --enable-gcc-warnings.
+
+2002-11-05  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l: When it starts with `%', complain about the
+        whole directive, not just that `invalid character: %'.
+
+2002-11-04  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Update from Autoconf.
+        (update, cvs-update, po-update, do-po-update): New.
+
+2002-11-04  Akim Demaille  <akim@epita.fr>
+
+        * tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
+        and yyerror.
+        Have yyerror `use' its arguments.
+        * tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
+        returns true when location & yacc & pure & parse-param.
+        (_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
+
+2002-11-04  Akim Demaille  <akim@epita.fr>
+
+        * src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
+        clashes.
+        * src/scan-gram.l: Use [\'] instead of ['] to pacify
+        font-lock-mode.
+        Use complain_at.
+        Use quote, not quote_n since LOCATION_PRINT no longer uses the
+        slot 0.
+
+2002-11-03  Paul Eggert  <eggert@twinsun.com>
+
+        * src/reader.c (get_merge_function, grammar_current_rule_check):
+        Use consistent diagnostics for reporting type name clashes.
+        Quote the types with <>, for consistency with Yacc.
+        * tests/input.at (Type Clashes): Adjust to diagnostic changes.
+
+2002-11-03  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
+        New.
+        * data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
+        (b4_parse_param): Remove.
+        Use b4_identification.
+        Propagate b4_pure_args where needed to pass them to yyerror.
+        * data/glr.m4 (b4_parse_param): Remove.
+        (b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
+        (b4_lpure_formals): New.
+        Use b4_identification.
+        (YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
+        b4_user_formals and b4_user_args.
+        (yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
+        (yyreportAmbiguity): When using a pure parser, also need
+        the location, and the parse-params.
+        Adjust callers.
+        (yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
+        When using a pure parser, also need the parse-params.
+        Adjust callers.
+        * tests/calc.at: Test pure (%pure-parser) and absolutely pure
+        (%pure-parser + %parse-param) LALR and GLR parsers.
+        (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
+        AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
+        AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
+        (_AT_DATA_CALC_Y): Equip for purity of yyerror.
+        (_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
+        * tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
+        * doc/bison.texinfo: Untabify the whole file.
+        (Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
+        (Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
+        (Error Reporting): Adjust to these new directives.
+        Document %error-verbose, deprecate YYERROR_VERBOSE.
+
+2002-11-03  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at: Change all the AT_CHECK_CALC_LALR and
+        AT_CHECK_CALC_GLR invocations to use % directives, instead of
+        command line options.
+        * tests/cxx-type.at: Formatting changes.
+
+2002-11-03  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l: Revamp to fix POSIX incompatibilities,
+        to count columns correctly, and to check for invalid inputs.
+
+        Use mbsnwidth to count columns correctly.  Account for tabs, too.
+        Include mbswidth.h.
+        (YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
+        (extend_location): New function.
+        (YY_LINES): Remove.
+
+        Handle CRLF in C code rather than in Lex code.
+        (YY_INPUT): New macro.
+        (no_cr_read): New function.
+
+        Scan UCNs, even though we don't fully handle them yet.
+        (convert_ucn_to_byte): New function.
+
+        Handle backslash-newline correctly in C code.
+        (SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
+        (eols, blanks): Remove.  YY_USER_ACTION now counts newlines etc.;
+        all uses changed.
+        (tag, splice): New EREs.  Do not allow NUL or newline in tags.
+        Use {splice} wherever C allows backslash-newline.
+        YY_STEP after space, newline, vertical-tab.
+        ("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
+
+        (letter, id): Don't assume ASCII; e.g., spell out a-z.
+
+        ({int}, handle_action_dollar, handle_action_at): Check for integer
+        overflow.
+
+        (YY_STEP): Omit trailing semicolon, so that it's more like C.
+
+        (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
+        as well as \000.  Check for UCHAR_MAX, not 255.
+        Allow \x with an arbitrary positive number of digits, as in C.
+        Check for overflow here.
+        Allow \? and UCNs, for compatibility with C.
+
+        (handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
+        with quote slot used by complain_at.
+
+        * tests/input.at: Add tests for backslash-newline, m4 quotes
+        in symbols, long literals, and funny escapes in strings.
+
+        * configure.ac (jm_PREREQ_MBSWIDTH): Add.
+        * lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
+        * lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
+        * m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
+        * m4/mbswidth.m4: New file, from GNU coreutils.
+
+        * doc/bison.texinfo (Grammar Outline): Document // comments.
+        (Symbols): Document that trigraphs have no special meaning in Bison,
+        nor is backslash-newline allowed.
+        (Actions): Document that trigraphs have no special meaning.
+
+        * src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
+        no longer used.
+
+2002-11-02  Paul Eggert  <eggert@twinsun.com>
+
+        * src/reader.c: Don't include quote.h; not needed.
+        (get_merge_function): Reword warning to be consistent with
+        type clash diagnostic in grammar_current_rule_check.
+
+        * lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
+        bug in trigraph handling.
+
+        * src/output.c (prepare_symbols): When printing token names,
+        escape "[" as "@<:@" and likewise for "]".
+
+        * src/system.h (errno): Remove declaration, as we are now
+        assuming C89 or better, and C89 guarantees errno.
+
+2002-10-30  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
+        Check for close failures.
+        * src/files.h (xfclose): Return void, not int, since it always
+        returned zero.
+        * src/files.c (xfclose): Likewise.  Report I/O error if ferror
+        indicates one.
+        * src/output.c (output_skeleton): Use xfclose rather than fclose
+        and ferror.  xfclose now checks ferror.
+
+        * data/glr.c (YYLEFTMOST_STATE): Remove.
+        (yyreportTree): Use a stack-based leftmost state.  This avoids
+        our continuing battles with bogus warnings about initializers.
+
+2002-10-30  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
+        #if.
+
+2002-10-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * tests/glr-regr1.at: New test for reported regressions.
+        * tests/testsuite.at: Add glr-regr1.at test.
+        * tests/Makefile.am: Add glr-regr1.at test.
+
+2002-10-24  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.75a.
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
+        * tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
+        we use malloc.  Don't assume 'A' through 'Z' are contiguous.
+        Don't assume strdup exists; POSIX says its an XSI extension.
+        Check for buffer overflow on input.
+
+2002-10-24  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_skeleton): Don't disable M4sugar comments
+        too soon: it results in comments being expanded.
+        * data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
+        first output.
+
+2002-10-24  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (m4_int_type): New.
+        * data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
+        char' as only yacc.c wants K&R portability.
+        * data/glr.c (yysigned_char): Remove.
+        * data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
+        Reported by Quoc Peyrot.
+
+2002-10-23  Paul Eggert  <eggert@twinsun.com>
+
+        * src/main.c (main): With --trace=time, report times even if a
+        non-fatal error occurs.  Formerly, the times were reported in some
+        such cases but not in others.
+        * src/reader.c (reader): Just return if a complaint has been issued,
+        instead of exiting, so that 'main' can report times.
+
+2002-10-22  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Include sys/types.
+        Reported by Bert Deknuydt.
+
+2002-10-23  Paul Eggert  <eggert@twinsun.com>
+
+        * configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
+        Suggested by Art Haas.
+
+2002-10-22  Paul Eggert  <eggert@twinsun.com>
+
+        * src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
+        decl; not needed any more.
+        * src/main.c (main): Use return to exit, undoing yesterday's change.
+        The last OS that we could find where this wouldn't work is
+        SunOS 3.5, and that's too old to worry about now.
+
+        * data/glr.c (struct yyltype): Define members even when not
+        doing locations.  This is more consistent with yacc.c, and it
+        works around the following bug reports:
+        http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
+        http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
+
+        * doc/bison.texinfo: Minor spelling and typographical fixes.  Use
+        @acronym consistently.  Standardize on "Yacc" instead of "YACC",
+        "Algol" instead of "ALGOL".  Give a bit more history about BNF.
+
+2002-10-22  Akim Demaille  <akim@epita.fr>
+
+        * data/README: New.
+
+2002-10-21  Paul Eggert  <eggert@twinsun.com>
+
+        Be consistent about 'bool'; the old code used an enum in one
+        module and an int in another, and this violates the C standard.
+        * m4/stdbool.m4: New file, from coreutils 4.5.3.
+        * configure.ac (AC_HEADER_STDBOOL): Add.
+        * m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
+        * src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
+        * src/symtab.c (hash_compare_symbol_t): Likewise.
+        * src/system.h (bool, false, true): Use a definition consistent
+        with ../lib/hash.c.  All uses changed.
+
+        * src/complain.c (warning_issued): Renamed from warn_message_count,
+        so that we needn't worry about integer overflow (!).
+        Now of type bool.  All uses changed.
+        (complaint_issued): Renamed from complain_message_count; likewise.
+
+        * src/main.c (main): Use exit to exit with failure.
+
+        * src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
+        rather than 1 and 0.
+        * src/main.c (main): Likewise.
+        * src/getargs.c (getargs): Likewise.
+        * src/reader.c (reader): Likewise.
+
+        * src/getarg.c (getargs): Remove duplicate code for
+        "Try `bison --help'".
+
+        * src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
+        What was that "2" for?
+
+        * src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
+        * src/getargs.c (usage): Likewise.
+
+        * src/getargs.c (getargs): When there are too few operands, report
+        the last one.  When there are too many, report the first extra
+        one.  This is how diffutils does it.
+
+2002-10-20  Paul Eggert  <eggert@twinsun.com>
+
+        Remove K&R vestiges.
+        * configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
+        * src/complain.c (VA_START): Remove.  Assume prototypes.
+        (vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
+        (private_strerror, warn_at, warn, complain_at, complain, fatal_at,
+        fatal): Assume prototypes.
+        * src/complain.h: Assume prototypes.
+        * src/system.h (PARAMS): Remove.
+        Include <limits.h> unconditionally, since it's guaranteeed even
+        for a freestanding C89 compiler.
+        (SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
+        * src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
+        * data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
+        (yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
+        (yyresolveStates, yyresolveAction, yyresolveStack)
+        (yyprocessOneStack): Use them.
+        (yy_reduce_print): New.
+        * tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_c_ansi_args): Recognize functions with no
+        arguments and output `void'.
+        (b4_c_function): Rename as...
+        (b4_c_function_def): this.
+        (b4_c_function_decl, b4_c_ansi_function_def)
+        (b4_c_ansi_function_decl): New.
+        Change the interpretation of the arguments: before `int, foo', now
+        `int foo, foo'.
+        * data/yacc.c (yyparse): Prototype and define thanks to these.
+        Adjust b4_c_function_def uses.
+        * data/glr.c (yyparse): Likewise, but ANSI only.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare): Move the definition of `tokens_number',
+        `nterms_number', `undef_token_number', `user_token_number_max'
+        to...
+        (prepare_tokens): Here.
+        (prepare_tokens): Rename as...
+        (prepare_symbols): this.
+        (prepare): Move the definition of `rules_number' to...
+        (prepare_rules): here.
+        (prepare): Move the definition of `last', `final_state_number',
+        `states_number' to...
+        (prepare_states): here.
+        * data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * src/tables.h, src/tables.c, src/output.c: Comment changes.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
+        * data/c.m4: here.
+
+2002-10-20  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare): Use MUSCLE_INSERT_STRING.
+        * src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
+        `pair'.
+        (muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
+        `name' to...
+        * data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
+        (b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
+        These.
+
+2002-10-19  Paul Eggert  <eggert@twinsun.com>
+
+        Do not create a temporary file, as that involves security and
+        cleanup headaches.  Instead, use a pair of pipes.
+        Derived from a suggestion by Florian Krohm.
+        * lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
+        * lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
+        * configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
+        (BISON_PREREQ_SUBPIPE): Add.
+        * lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
+        Add subpipe.h, subpipe.c.
+        * m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4.  Add subpipe.m4.
+        * po/POTFILES.in: Add lib/subpipe.c.
+        * src/output.c: Include "subpipe.h".
+        (m4_invoke): Remove decl.
+        (scan_skel): New decl.
+        (output_skeleton): Use pipe rather than temporary file for m4 input.
+        Check that m4sugar.m4 is readable, to avoid deadlock.
+        Check for pipe I/O error.
+        * src/scan-skel.l (readpipe): Remove decl.
+        (scan_skel): New function, to be used in place of m4_invoke.
+        Read from stream rather than file.
+
+        * lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
+        float, as this generates a warning on Solaris 8 + GCC 3.2 with
+        --enable-gcc-warnings.  Instead, divide into 1.0 rather than 1;
+        this generates a more-accurate value anyway.
+
+        * lib/timevar.c (timervar_accumulate): Rename locals to
+        avoid confusion with similarly-named more-global.
+        * src/muscle_tab.c (muscle_pair_list_grow): Likewise.
+
+        * src/output.c (prepare): Use xstrdup to convert char const *
+        to char *, to avoid GCC warning.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
+        LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
+        Use them to have `calc.y' ready for %pure-parser.
+        * data/yacc.c (YYLEX): Pass a yylex return type to
+        b4_c_function_call.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+        Prototype support of %lex-param and %parse-param.
+
+        * src/parse-gram.y: Add the definition of the %lex-param and
+        %parse-param tokens, plus their rules.
+        Drop the `_' version of %glr-parser.
+        Add the "," token.
+        * src/scan-gram.l (INITIAL): Scan them.
+        * src/muscle_tab.c: Comment changes.
+        (muscle_insert, muscle_find): Rename `pair' as `probe'.
+        * src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
+        (muscle_entry_s): The `value' member is no longer const.
+        Adjust all dependencies.
+        * src/muscle_tab.c (muscle_init): Adjust: use
+        MUSCLE_INSERT_STRING.
+        Initialize the obstack earlier.
+        * src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
+        (muscle_pair_list_grow): New.
+        * data/c.m4 (b4_c_function_call, b4_c_args): New.
+        * data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
+        * tests/calc.at: Use %locations, not --locations.
+        (AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
+
+2002-10-19  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (usage): Take status as argument and exit
+        accordingly.
+        Report the traditional `Try ... --help' message when status != 0.
+        (usage, version): Don't take a FILE * as arg, it is pointless.
+        (getargs): When there is an incorrect number of arguments, make it
+        an error, and report it GNUlically thanks to `usage ()'.
+
+2002-10-18  Paul Eggert  <eggert@twinsun.com>
+
+        * data/glr.c (yyreportParseError): Don't assume that sprintf
+        yields the length of the printed string, as this is not true
+        on SunOS 4.1.4.  Reported by Peter Klein.
+
+        * tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
+        * tests/conflicts.at (%nonassoc and eof): Likewise.
+        Fixes SunOS 4.1.4 test failure reported by Peter Klein.
+
+2002-10-17  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.h (trace_e): Add trace_scan, and trace_parse.
+        * src/getargs.c (trace_types, trace_args): Adjust.
+        * src/reader.c (grammar_current_rule_prec_set)
+        (grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
+        Standardize error messages.
+        And s/@prec/%prec/!
+        (reader): Use trace_flag to enable scanner/parser debugging,
+        instead of an adhoc scheme.
+        * src/scan-gram.l: Remove trailing debugging code.
+
+2002-10-16  Paul Eggert  <eggert@twinsun.com>
+
+        * src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
+        MUSCLE_TAB_H.
+
+        * NEWS: Officially drop support for building Bison with K&R C,
+        since it didn't work anyway and it's not worth worrying about.
+        * Makefile.maint (wget_files): Remove ansi2knr.c.
+        (ansi2knr.c-url_prefix): Remove.
+        * lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
+        * lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+        * src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-10-15  Paul Eggert  <eggert@twinsun.com>
+
+        Stop using the "enum_" trick for K&R-style function definitions;
+        it confused me, and I was the author!  Instead, assume that people
+        who want to use K&R C compilers (when using these modules in GCC,
+        perhaps?) will run ansi2knr.
+
+        * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
+        All uses of "enum_" changed to "enum ".
+        * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+        * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+        * lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
+        abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
+        abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
+        abitset_copy1, abitset_disjoint_p, abitset_empty_p,
+        abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
+        abitset_not, abitset_ones, abitset_or, abitset_or_and,
+        abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
+        abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
+        abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
+        Use function prototypes; this removes the need for declaring
+        static functions simply to provide their prototypes.
+        * lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
+        bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
+        bitset_count_, bitset_create, bitset_dump, bitset_first,
+        bitset_free, bitset_init, bitset_last, bitset_next,
+        bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
+        bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
+        bitset_print, bitset_release_memory, bitset_toggle_,
+        bitset_type_choose, bitset_type_get, bitset_type_name_get,
+        debug_bitset): Likewise.
+        * lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
+        * lib/bitset_stats.c (bitset_log_histogram_print,
+        bitset_percent_histogram_print, bitset_stats_and,
+        bitset_stats_and_cmp, bitset_stats_and_or,
+        bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
+        bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
+        bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
+        bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
+        bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
+        bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
+        bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
+        bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
+        bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
+        bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
+        bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
+        bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
+        bitset_stats_zero): Likewise.
+        * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+        bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+        bitsetv_dump, debug_bitsetv): Likewise.
+        * lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
+        ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
+        ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
+        ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
+        ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
+        ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
+        ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
+        ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
+        ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
+        ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
+        ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
+        Likewise.
+        * lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
+        lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
+        lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
+        lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
+        lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
+        lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
+        lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
+        lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
+        lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
+        lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
+        lbitset_xor_cmp, lbitset_zero): Likewise.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+        Version 1.75.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+        * tests/Makefile.am (maintainer-check-posix): New.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
+        member.
+
+2002-10-14  Akim Demaille  <akim@epita.fr>
+
+        * src/tables.c (table_ninf_remap): base -> tab.
+        Reported by Matt Rosing.
+
+2002-10-14  Paul Eggert  <eggert@twinsun.com>
+
+        * tests/action.at, tests/calc.at, tests/conflicts.at,
+        tests/cxx-type.at, tests/headers.at, tests/input.at,
+        tests/regression.at, tests/synclines.at, tests/torture.at:
+        Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
+        so that the tests still work even if POSIXLY_CORRECT is set.
+        * doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
+
+        * data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
+        for portability to K&R hosts.  Fix typo: signed char is guaranteed
+        only to 127, not to 128.
+        * data/glr.c (yysigned_char): New type.
+        * data/yacc.c (yysigned_char): Likewise.
+        * tests/regression.at (Web2c Actions): signed char -> yysigned_char.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c (yyparse): Rewrite to avoid "comparison is always
+        true due to limited range of data type" warning from GCC.
+
+        * data/c.m4 (b4_token_defines): Protect against double-inclusion
+        by wrapping enum yytokentype's definition inside #ifndef
+        YYTOKENTYPE.  This undoes a bug I introduced on 2002-10-12.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
+        Un yy- yyrhs to avoid the name clash with the global YYRHS.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Update from Autoconf 2.54.
+        * m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c (print_state): Separate the list of solved conflicts
+        from the other items.
+        * tests/conflicts.at (Resolved SR Conflicts): Adjust.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        Let nondeterministic skeletons be usable with deterministic
+        tables.
+
+        With the patch, GAWK compiled by GCC without -O2 passes its test
+        suite using a GLR parser driven by LALR tables.  It fails with -O2
+        because `struct stat' gives two different answers on my machine:
+        88 (definition of an auto var) and later 96 (memset on this var).
+        Hence the stack is badly corrumpted.  The headers inclusion is to
+        blame: if I move the awk.h inclusion before GLR's system header
+        inclusion, the two struct stat have the same size.
+
+        * src/tables.c (pack_table): Always create conflict_table.
+        (token_actions): Always create conflict_list.
+        * data/glr.c (YYFLAG): Remove, unused.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        * configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
+        (O0FLAGS): New.
+        (VALGRIND, GXX): New.
+        * tests/atlocal.in (CFLAGS): Use O0FLAGS.
+        * tests/bison.in: Run $PREBISON a pre-command.
+        * tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
+        (maintainer-check-g++): New.
+        * Makefile.am (maintainer-check): New.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        * data/glr.c: Formatting changes.
+        Tweak some trace messages to match yacc.c's.
+
+2002-10-13  Akim Demaille  <akim@epita.fr>
+
+        GLR parsers sometimes raise parse errors instead of performing the
+        default reduction.
+        Reported by Charles-Henry de Boysson.
+
+        * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
+        check the length of the traces when %glr.
+        (_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
+        GLR's traces.
+        (AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
+        Test GLR parsers.
+        * data/glr.c (YYLEFTMOST_STATE): Fix its value.
+        (yyltype): Remove the yy prefix from the member names.
+        (yytable): Complete its comment.
+        (yygetLRActions): Map error action number from YYTABLE from
+        YYTABLE_NINF to 0.
+        (yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
+        (which was a bug: it should have been YYTABEL_NINF, and yet it was
+        not satisfying as we could compare an YYACTION computed from
+        YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
+        only value for error actions.
+        (yyreportParseError): In verbose parse error messages, don't issue
+        `error' in the list of expected tokens.
+        * data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
+        next action to perform to match glr.c's decoding.
+        (yytable): Complete its comment.
+
+2002-10-13  Paul Eggert  <eggert@twinsun.com>
+
+        Fix problem reported by Henrik Grubbstroem in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
+        "nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
+        because the Bison parser reads the second action before reducing
+        the first one.
+        * src/scan-gram.l (rule_length): New static var.
+        Use it to keep track of the rule length in the scanner, since
+        we can't expect the parser to be in lock-step sync with the scanner.
+        (handle_action_dollar, handle_action_at): Use this var.
+        * tests/actions.at (Exotic Dollars): Test for the problem.
+
+2002-10-12  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
+        * m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
+        Include <sys/time.h> when checking for clock_t and struct tms.
+        Use same include order as source.
+        This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
+
+        * lib/timevar.c: Update copyright date and clarify comments.
+        (get_time) [IN_GCC]: Keep the GCC version for reference.
+
+        * lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
+        GCC version as of today, then merge Bison's changes.
+        Change "GCC" to "Bison" in copyright notice.  timevar.def's
+        author is Akim, so change that too.
+
+        * src/reader.c (grammar_current_rule_check):
+        Don't worry about the default action if $$ is untyped.
+        Prevents bogus warnings reported by Jim Gifford in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
+
+        * data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
+        * data/glr.c, data/lalr1.cc, data/yacc.c:
+        Output token definitions before the first part of user declarations.
+        Fixes compatibility problem reported by Jim Gifford for kbd in
+        <http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
+
+2002-10-11  Paul Eggert  <eggert@twinsun.com>
+
+        * data/yacc.c (yyreport_parse_error): Remove, putting its body into...
+        (yyparse): here.  This undoes some of the 2002-07-25 change.
+        Compatibility problem reported by Ralf S. Engelschall with
+        OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
+
+2002-10-11  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at Characters Escapes): New.
+        * src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
+        characters.
+        Reported by Jan Nieuwenhuizen.
+
+2002-10-11  Akim Demaille  <akim@epita.fr>
+
+        * po/id.po: New.
+
+2002-10-10  Paul Eggert  <eggert@twinsun.com>
+
+        Portability fixes for bitsets; this also avoids several GCC
+        warnings.
+
+        * lib/abitset.c: Include <stddef.h>, for offsetof.
+        * lib/lbitset.c: Likewise.
+
+        * lib/abitset.c (abitset_bytes): Return a size that is aligned
+        properly for vectors of objects.  Do not assume that adding a
+        header size to a multiple of a word size yields a value that is
+        properly aligned for the whole union.
+        * lib/bitsetv.c (bitsetv_alloc): Likewise.
+
+        * lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
+        unique names for structures.
+        * lib/ebitset.c (ebitset_bytes): Likewise.
+        * lib/lbitset.c (lbitset_bytes): Likewise.
+
+        * lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
+        abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
+        abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
+        abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
+        abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
+        abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
+        abitset_or_and_cmp, abitset_copy): Supply prototype decls,
+        to improve the type-checking that GCC can do.
+        * lib/bitset.c (bitset_op4_cmp): Likewise.
+        * lib/bitset_stats.c (bitset_stats_count,
+        bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
+        bitset_stats_copy, bitset_stats_disjoint_p,
+        bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
+        bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
+        bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
+        bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
+        bitset_stats_and_or_cmp, bitset_stats_andn_or,
+        bitset_stats_andn_or_cmp, bitset_stats_or_and,
+        bitset_stats_or_and_cmp): Likewise.
+        * lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
+        lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
+        lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
+        lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
+
+        * lib/abitset.h: Include bitset.h, not bbitset.h.
+        * lib/ebitset.h: Likewise.
+        * lib/lbitset.h: Likewise.
+
+        * lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
+        All instances of parameters of type enum bitset_opts are now of
+        type enum_bitset_opts, to conform to the C Standard, and similarly
+        for enum_bitset_type.
+        * lib/ebitset.c (enum_ebitset_find_mode): Likewise.
+        * lib/lbitset.c (enum_lbitset_find_mode): Likewise.
+
+        Do not use "struct bitset_struct" to mean different things in
+        different modules.  Not only is this confusing, it violates
+        the C Standard, which requires that structure types in different
+        modules must be compatible if one is to be passed to the other.
+        * lib/bbitset.h (bitset): Now points to a union, not to a struct.
+        All instances of "struct bitset_struct *" replaced with "bitset".
+        * lib/bitset.h (struct bitset_struct): Remove, replacing with....
+        (union bitset_union, struct abitset_struct, struct ebitset_struct,
+        struct lbitset_struct, struct bitset_stats_struct): New types.
+        All uses of struct bitset_struct changed to union bitset_union,
+        etc.
+        * lib/abitset.c (struct abitset_struct, abitset,
+        struct bitset_struct): Remove.
+        * lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
+        struct bitset_struct): Remove.
+        * lib/ebitset.c (struct ebitset_struct, ebitset, struct
+        bitset_struct): Remove.
+        * lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
+        Likewise.
+
+        Do not call a function of type T using a call that assumes the
+        function is of a different type U.  Standard C requires that a
+        function must be called with a type that is compatible with its
+        definition.
+        * lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+        New decls.
+        * lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
+        New functions.
+        * lib/ebitset.c (PFV): Remove.
+        * lib/lbitset.c (PFV): Likewise.
+        * lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
+        ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
+        decls.
+        (ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
+        (ebitset_vtable): Use them.
+        * lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
+        lbitset_xor): New functions.
+        (lbitset_vtable): Use them.
+
+        * lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
+        Declare.
+
+        * lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
+        GCC warning.
+        * lib/lbitset.c (LBITSET_CURRENT1): Likewise.
+        Use offsetof, for simplicity.
+
+2002-10-06  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/bitset.h (bitset_reset): Do not assume that bitset_word is
+        the same width as int.  This reapplies a hunk of the 2002-08-12 patch
+        <http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
+        which was inadvertently undone by the 2002-09-30 patch.
+        * lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
+        the same width as int.
+
+2002-10-04  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.50.
+
+        * configure.ac (AC_INIT), NEWS: Increment version number.
+
+        * doc/bison.texinfo: Minor spelling, grammar, and white space
+        fixes.
+        (Symbols): Mention that any negative value returned from yylex
+        signifies end-of-input.  Warn about negative chars.  Mention
+        the portable Standard C character set.
+
+        The GNU coding standard says CFLAGS and YFLAGS are reserved
+        for the installer to set.
+        * lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
+        * src/Makefile.am (AM_CFLAGS): Likewise.
+        (AM_YFLAGS): Renamed from YFLAGS.
+
+        Fix some MAX and MIN problems.
+        * src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
+        * src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
+        * src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
+        * src/reader.c (reader): Use it.
+
+        * tests/regression.at (Braces parsing): Use grep, not fgrep, as
+        POSIX 1003.1-2001 has removed fgrep.
+
+2002-10-04  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+
+        * lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
+        interpreted as signed.
+        * lib/ebitset.c (ebitset_list): Fix bug.
+
+2002-10-01  Paul Eggert  <eggert@twinsun.com>
+
+        More fixes for 64-bit hosts and large bitsets.
+
+        * lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
+        abitset_size, abitset_list, abitset_list_reverse, abitset_list):
+        Use bitset_bindex, not int or unsigned int or size_t, to count bits.
+        * lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
+        struct bitset_vtable.list, struct bitset_vtable.list_reverse,
+        bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
+        bitset_count_): Likewise.
+        * lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
+        bitset_first, bitset_last): Likewise.
+        * lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
+        bitset_stats_list_reverse, bitset_stats_size,
+        bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
+        Likewise.
+        * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+        * lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
+        bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
+        bitsetv_reflexive_transitive_closure): Likewise.
+        * lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
+        * lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
+        Likewise.
+        * lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
+        Likewise.
+
+        * lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
+        Use size_t, not unsigned int, to count bytes.
+        * lib/abitset.h (abitset_bytes): Likewise.
+        * lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
+        Likewise.
+        * lib/bitset.h (bitset_bytes): Likewise.
+        * lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
+        * lib/bitset_stats.h (bitset_stats_bytes): Likewise.
+        * lib/bitsetv.c (bitsetv_alloc): Likewise.
+        * lib/ebitset.c (ebitset_bytes): Likewise.
+        * lib/ebitset.h (ebitset_bytes): Likewise.
+        * lib/lbitset.c (lbitset_bytes): Likewise.
+        * lib/lbitset.h (lbitset_bytes): Likewise.
+
+        * lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
+        abitset_subset_p, abitset_disjoint_p, abitset_and,
+        abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
+        abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
+        abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
+        abitset_or_and, abitset_or_and_cmp):
+        Use bitset_windex instead of unsigned int.
+        * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+        * lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
+        ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
+        ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
+        Likewise.
+        * lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
+
+        * lib/bitset.c (bitset_print):
+        Use proper printf formats for widths of integer types.
+        * lib/bitset_stats.c (bitset_percent_histogram_print,
+        bitset_log_histogram_print, bitset_stats_print_1): Likewise.
+        * lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
+        * lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
+        * lib/lbitset.c (lbitset_bytes): Likewise.
+
+        * lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
+        BITSET_SIZE_MAX): New macros.
+        (BITSET_INDEX_MAX): Remove.  It wasn't right, since it assumed that
+        sizeof (bitset_word) == sizeof (bitset_windex).  All uses changed
+        to BITSET_WINDEX_MAX.
+
+        * lib/bitset.c (bitset_next, bitset_prev, bitset_first,
+        bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
+        since we now return the bitset_bindex type (not int).
+
+        * lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
+        when computing sizes.
+        * lib/ebitset.c (ebitset_elts_grow): Likewise.
+
+        * lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
+        and avoid cast to unsigned.
+
+2002-09-30  Akim Demaille  <akim@epita.fr>
+
+        * lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
+        * lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
+        Updates from Michael Hayes.
+
+2002-09-30  Art Haas  <ahaas@neosoft.com>
+
+        * configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
+        invocations.
+        * tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
+        defined.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+        Version 1.49c.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+        * configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
+        (Because of AC_LIBSOURCE).
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+        Playing with Autoscan.
+
+        * configure.ac: Remove the old LIBOBJ tweaks.
+        (AC_REPLACE_FUNCS): Add strrchr and strtol.
+        * lib/strrchr.c: New.
+        * lib/strtol.c: New, from the Coreutils 4.5.1.
+
+2002-09-27  Akim Demaille  <akim@epita.fr>
+
+        Playing with Autoscan.
+
+        * m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
+        * lib/Makefile.am (libbison_a_SOURCES): No longer include
+        argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
+        * lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
+        Coreutils 4.5.1.
+
+2002-09-24  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Stack Overflow): xref to Recursion.
+        (Frequently Asked Questions, Parser Stack Overflow): New.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+        Playing with autoscan.
+
+        * src/reader.c (get_merge_function): Use xstrdup, not strdup.
+        * src/files.c (skeleton_find): Remove, unused.
+        * m4/memcmp.m4: New, from the Coreutils 4.5.1.
+        * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+        * configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
+        * Makefile.am (AUTOMAKE_OPTIONS): Don't.
+
+2002-09-13  Akim Demaille  <akim@epita.fr>
+
+        * configure.ac: Require 2.54.
+        s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
+        s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
+        * m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
+        Remove, provided by Autoconf macros.
+
+2002-09-12  Akim Demaille  <akim@epita.fr>
+
+        * m4/prereq.m4: Update, from Coreutils 4.5.1.
+
+2002-09-12  Akim Demaille  <akim@epita.fr>
+
+        * m4/prereq.m4: Update, from Fileutils 4.1.5.
+        * configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
+        Reported by Martin Mokrejs.
+
+2002-09-10  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y: Associate a human readable string to each
+        token type.
+        * tests/regression.at (Invalid inputs): Adjust.
+
+2002-09-10  Gary V. Vaughan  <gary@gnu.org>
+
+        * tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
+        with an Autoconf-2.5x style configure.ac.
+
+2002-09-06  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo (Conditions): Make explicit that the GPL
+        exception applies only to yacc.c.  This is a modification of a
+        patch originally suggested by Akim Demaille.
+
+2002-09-06  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_copyright): Move the GPL exception comment from
+        here to...
+        * data/yacc.c: here.
+
+        * data/lalr1.cc (struct yyltype): Don't define it, since we use
+        LocationType.
+        (b4_ltype): Default to yy::Location from location.hh.
+
+2002-09-04  Jim Meyering  <jim@meyering.net>
+
+        * data/yacc.c: Guard the declaration of yytoknum also with
+        `#ifdef YYPRINT', so it is declared only when used.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Rename as...
+        * configure.ac: this.
+        Bump to 1.49c.
+
+2002-09-04  Akim Demaille  <akim@epita.fr>
+
+        * src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
+        * src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
+        translate maintainer only messages.
+
+2002-08-12  Paul Eggert  <eggert@twinsun.com>
+
+        Version 1.49b.
+
+        * Makefile.am (SUBDIRS): Remove intl.
+        (DISTCLEANFILES): Remove.
+        * NEWS: Mention that GNU M4 is now required.  Clarify what is
+        meant by "larger grammars".  Mention the pt_BR translation.
+        * configure.in (AC_CHECK_DECLS): Add getenv, getopt.
+        (AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
+        Bump version from 0.11.2 to 0.11.5.
+        (BISON_PREREQ_STAGE): Remove.
+        (AM_GNU_GETTEXT): Use external gettext.
+        (AC_OUTPUT): Remove intl/Makefile.
+
+        * config/depcomp, config/install-sh: Sync with Automake 1.6.3.
+
+        * data/glr.c: Include string.h, for strlen.
+        (yyreportParseError): Use size_t for yysize.
+        (yy_yypstack): No longer nested inside yypstates, as nested
+        functions are not portable.  Do not assume size_t is the
+        same width as int.
+        (yypstates): Do not assume that ptrdiff_t is the same width
+        as int, and similarly for yyposn and YYINDEX.
+
+        * data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
+
+        * lib/Makefile.am (INCLUDES): Do not include from the intl
+        directory, which has been removed.
+        * src/Makefile.am (INCLUDES): Likewise.
+
+        * lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
+        (bitsets_sources, additional_bitsets_sources, timevars_sources):
+        New vars.
+
+        * lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
+        * tests/Makefile.am (EXTRA_DIST): Likewise.
+
+        * lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
+        Do not assume that bitset_windex is the same width as unsigned.
+
+        * lib/abitset.c (abitset_unused_clear): Do not assume that
+        bitset_word is the same width as int.
+        * lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
+        * lib/bitset.h (bitset_set, bitset_reset): Likewise.
+        * lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
+        * lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
+        * lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
+
+        * lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
+        portability to one's complement hosts!).
+        * lib/ebitset.c (ebitset_op1): Likewise.
+        * lib/lbitset.c (lbitset_op1): Likewise.
+
+        * lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
+        * lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
+        lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
+        Sync with fileutils.
+        * lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
+        lib/gettext.h: Sync with diffutils.
+
+        * lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
+        lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
+
+        * lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
+        PROTOTYPES to check for prototypes, and "defined __STDC__" to
+        check for void *.
+
+        * lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
+        size_t; the old version tried to do this but casted improperly.
+        (bitset_bindex, bitset_windex): Now size_t, not unsigned long.
+        (bitset_test): Now returns int, not unsigned long.
+
+        * lib/bitset_stats.c: Include "gettext.h".
+        (_): New macro.
+        (bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
+        name locals "index", as it generates unnecessary warnings on some
+        hosts that have an "index" function.
+
+        * lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
+        bitset_stats_read, bitset_stats_write): Wrap strings in _() if
+        they need translation.
+        * src/LR0.c (state_list_append, new_itemsets, get_state,
+        append_states, generate_states): Likewise.
+        * src/assoc.c (assoc_to_string): Likewise.
+        * src/closure.c (print_closure, set_firsts, closure): Likewise.
+        * src/gram.c (grammar_dump): Likewise.
+        * src/injections.c (injections_compute): Likewise.
+        * src/lalr.c (lookaheads_print): Likewise.
+        * src/relation.c (relation_transpose): Likewise.
+        * src/scan-gram.l: Likewise.
+        * src/tables.c (table_grow, pack_vector): Likewise.
+
+        * m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
+        glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
+        * m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
+        * m4/mbstate_t.m4: Sync with fileutils.
+        * m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
+
+        * po/LINGUAS: Add pt_BR.
+        * po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
+        src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
+        lib/timevar.c.
+        Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
+        manual recommends.
+        Similarly, use src/scan-gram.l instead of src/scan-gram.c.
+
+        * src/complain.c (strerror_r): Remove decl; not needed.
+        (strerror): Use same pattern as ../lib/error.c.
+
+        * src/files.c, src/files.h (compute_header_macro): Remove; unused.
+
+        * src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
+
+        * src/main.c (main): Cast result of bindtextdomain and textdomain
+        to void, to avoid a GCC warning when --disable-nls is in effect.
+
+        * src/scan-gram.l: Use strings rather than escapes when possible,
+        to minimize the number of warnings from xgettext.
+        (handle_action_dollar, handle_action_at): Don't use isdigit,
+        as it mishandles negative chars and it may not work as expected
+        outside the C locale.
+
+        * src/symtab.c (symbol_get): Don't cast LHS of an assignment;
+        this is a GCC extension and is not portable to other compilers.
+
+        * src/system.h (alloca): Use same pattern as ../lib/error.c.
+        Do not include <ctype.h>; no longer needed.
+        Do not include <malloc.h>; no longer needed (and generates
+        warnings on OpenBSD 3.0).
+
+        * tests/cxx-type.at (yylex): Do not pass signed char to isupper;
+        it's not portable.
+
+        * tests/regression.at: Do not use 'cc -c input.c -o input';
+        Sun C rejects this.  Instead, use 'cc -c input.c -o input.o'.
+
+        * tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
+        exit status as failure, not just exit status 1.  Sun C exits
+        with status 2 sometimes.
+
+        * tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
+        Use it for the two large tests.
+
+2002-08-02  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflicts_output): Don't output rules never
+        reduced here, since anyway that computation doesn't work.
+        * src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
+        (rule_useless_p, rule_never_reduced_p): New.
+        (grammar_rules_partial_print): Use a filter instead of a range.
+        Display the title only if needed.
+        (grammar_rules_print): Adjust.
+        (grammar_rules_never_reduced_report): New.
+        * src/tables.c (action_row): Move the computation of rules never
+        reduced to...
+        (token_actions): here.
+        * src/main.c (main): Make the parser before making the report, so
+        that rules never reduced are computed.
+        Call grammar_rules_never_reduced_report.
+        * src/print.c (print_results): Report rules never reduced.
+        * tests/conflicts.at, tests/reduce.at: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+        Instead of attaching lookaheads and duplicating the rules being
+        reduced by a state, attach the lookaheads to the reductions.
+
+        * src/state.h (state_t): Remove the `lookaheads',
+        `lookaheads_rule' member.
+        (reductions_t): Add a `lookaheads' member.
+        Use a regular array for the `rules'.
+        * src/state.c (reductions_new): Initialize the lookaheads member
+        to 0.
+        (state_rule_lookaheads_print): Adjust.
+        * src/state.h, src/state.c (state_reductions_find): New.
+        * src/conflicts.c (resolve_sr_conflict, set_conflicts)
+        (count_rr_conflicts): Adjust.
+        * src/lalr.c (LArule): Remove.
+        (add_lookback_edge): Adjust.
+        (state_lookaheads_count): New.
+        (states_lookaheads_initialize): Merge into...
+        (initialize_LA): this.
+        (lalr_free): Adjust.
+        * src/main.c (main): Don't free nullable and derives too early: it
+        is used by --verbose.
+        * src/print.c, src/print_graph.c, src/tables.c: Adjust.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.h, src/derives.c (derives): A `rule_t***' instead of
+        `rule_number_t**'.
+        (set_derives, free_derives): Rename as...
+        (derives_compute, derives_free): this.
+        Adjust all dependencies.
+        * src/nullable.c (set_nullable, free_nullable): Rename as...
+        (nullable_compute, nullable_free): these.
+        (rule_list_t): Store rule_t *, not rule_number_t.
+        * src/state.c (state_rule_lookaheads_print): Directly compare rule
+        pointers, instead of their numbers.
+        * src/main.c (main): Call nullable_free, and derives_free earlier,
+        as they were lo longer used.
+
+2002-08-01  Akim Demaille  <akim@epita.fr>
+
+        * lib/timevar.c (get_time): Include children time.
+        * src/lalr.h (LA, LArule): Don't export them: used with the
+        state_t.
+        * src/lalr.c (LA, LArule): Static.
+        * src/lalr.h, src/lalr.c (lalr_free): New.
+        * src/main.c (main): Call it.
+        * src/tables.c (pack_vector): Check whether loc is >= to the
+        table_size, not >.
+        (pack_tables): Don't free froms, tos, conflict_tos, and pos...
+        (tables_generate): do it, since that's also it which allocates
+        them.
+        Don't free LA and LArule, main does.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+        Separate parser tables computation and output.
+
+        * src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
+        (conflict_list, conflict_list_cnt, table, check, table_ninf)
+        (yydefgoto, yydefact, high): Move to...
+        * src/tables.h, src/tables.c: here.
+        * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+        (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+        (symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
+        (froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
+        (ACTION_MIN, actrow, order, nentries, pos, conflrow)
+        (conflict_list_free, table_size, lowzero, table_grow, conflict_row)
+        (action_row, save_row, token_actions, save_column, default_goto)
+        (goto_actions, sort_actions, matching_state, pack_vector)
+        (table_ninf_remap, pack_table, prepare_actions): Move to...
+        * src/tables.c: here.
+        * src/tables.h, src/tables.c(tables_generate, tables_free): New.
+        * src/output.c (token_actions, output_base, output_conflicts)
+        (output_check): Merge into...
+        (prepare_actions): this.
+        (actions_output): Rename as...
+        (user_actions_output): this.
+        * src/main.c (main): Call tables_generate and tables_free.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+        Steal GCC's --time-report support.
+
+        * lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
+        stolen/adjusted from GCC.
+        * m4/stage.m4: Remove time related checks.
+        * m4/timevar.m4: New.
+        * configure.in: Adjust.
+        * src/system.h: Adjust to using timevar.h.
+        * src/getargs.h, src/getargs.c: Support trace_time for
+        --trace=time.
+        * src/main.c (stage): Remove.
+        (main): Replace `stage' invocations with timevar calls.
+        * src/output.c: Insert pertinent timevar calls.
+
+2002-07-31  Akim Demaille  <akim@epita.fr>
+
+        Let --trace have arguments.
+
+        * src/getargs.h (enum trace_e): New.
+        * src/getargs.c (trace_args, trace_types, trace_argmatch): New.
+        (long_options, short_options): --trace/-T takes an optional
+        argument.
+        Change all the uses of trace_flag to reflect the new flags.
+        * tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
+
+        Strengthen `stage' portability.
+
+        * m4/stage.m4 (BISON_PREREQ_STAGE): New.
+        * configure.in: Use it.
+        Don't check for malloc.h and sys/times.h.
+        * src/system.h: Include them when appropriate.
+        * src/main.c (stage): Compile only when mallinfo, struct mallinfo,
+        times and struct tms are available.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+        In verbose parse error message, don't report `error' as an
+        expected token.
+        * tests/actions.at (Printers and Destructors): Adjust.
+        * tests/calc.at (Calculator $1): Adjust.
+        * data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
+        error message, do not report the parser accepts the error token in
+        that state.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+        Normalize conflict related messages.
+
+        * src/complain.h, src/complain.c (warn, complain): New.
+        * src/conflicts.c (conflicts_print): Use them.
+        (conflict_report_yacc): New, extracted from...
+        (conflicts_print): here.
+        * tests/conflicts.at, tests/existing.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+        Report rules which are never reduced by the parser: those hidden
+        by conflicts.
+
+        * src/LR0.c (save_reductions): Don't make the final state too
+        different: save its reduction (accept) instead of having a state
+        without any action (no shift or goto, no reduce).
+        Note: the final state is now a ``regular'' state, i.e., the
+        parsers now contain `reduce 0' as default reduction.
+        Nevertheless, since they decide to `accept' when yystate =
+        final_state, they still will not reduce rule 0.
+        * src/print.c (print_actions, print_reduction): Adjust.
+        * src/output.c (action_row): Track reduced rules.
+        (token_actions): Report rules never reduced.
+        * tests/conflicts.at, tests/regression.at: Adjust.
+
+2002-07-30  Akim Demaille  <akim@epita.fr>
+
+        `stage' was accidently included in a previous patch.
+        Initiate its autoconfiscation.
+
+        * configure.in: Look for malloc.h and sys/times.h.
+        * src/main.c (stage): Adjust.
+        Report only when trace_flag.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
+        state_number_t.
+        (errs_t): symbol_t*, not symbol_number_t.
+        (reductions_t): rule_t*, not rule_number_t.
+        (FOR_EACH_SHIFT): New.
+        * src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
+        * src/print.c, src/print_graph.c: Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+        Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
+
+        * src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
+        (endtoken, accept): these.
+        * src/reader.c (reader): Set endtoken's default tag to "$end".
+        Set undeftoken's tag to "$undefined" instead of "$undefined.".
+        * doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
+        Adjust.
+
+2002-07-29  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (reduce_grammar): When the language is empty,
+        complain about the start symbol, not the axiom.
+        Use its location.
+        * tests/reduce.at (Empty Language): New.
+
+2002-07-26  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.h, src/reader.c (gram_error): ... can't get
+        yycontrol without making too strong assumptions on the parser
+        itself.
+        * src/output.c (prepare_tokens): Use the real 0th value of
+        token_translations instead of `0'.
+        * src/parse-gram.y (yyerror): Don't rely on yycontrol being
+        visible here.
+        * data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
+        for the time being: %locations ought to provide it to yyerror.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
+        * doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        Stop storing rules from 1 to nrules + 1.
+
+        * src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
+        * src/nullable.c, src/output.c, src/print.c, src/reader.c
+        * src/reduce.c: Allocate and free from &rules[0], not &rules[1].
+        Iterate from 0 to nrules.
+        Use rule_number_as_item_number and item_number_as_rule_number.
+        Adjust to `derive' now containing possibly 0.
+        * src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
+        Handle the `- 1' part in rule numbers from/to item numbers.
+        * src/conflicts.c (log_resolution): Fix the message which reversed
+        shift and reduce.
+        * src/output.c (action_row): Initialize default_rule to -1.
+        (token_actions): Adjust.
+        * tests/sets.at (Nullable, Firsts): Fix the previously bogus
+        expected output.
+        * tests/conflicts.at (Resolved SR Conflicts): Likewise.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
+        (b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
+        (b4_c_knr_arg_decl): New.
+        * data/yacc.c: Use it to define yysymprint, yydestruct, and
+        yyreport_parse_error.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (yyreport_parse_error): New, extracted from...
+        (yyparse): here.
+        (yydestruct, yysymprint): Move above yyparse.
+        Be K&R compliant.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
+        replace...
+        (b4_sint_type, b4_uint_type): these.
+        * data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-25  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (TIEM_NUMBER_MAX): New.
+        (item_number_of_rule_number, rule_number_of_item_number): Rename
+        as...
+        (rule_number_as_item_number, item_number_as_rule_number): these.
+        Adjust dependencies.
+        * src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
+        (VECTOR_NUMBER_MIN, state_number_to_vector_number)
+        (symbol_number_to_vector_number): New.
+        (order): Of vector_number_t* type.
+        (base_t, BASE_MAX, BASE_MIN): New.
+        (froms, tos, width, pos, check): Of base_t type.
+        (action_number_t, ACTION_MIN, ACTION_MAX): New.
+        (actrow): Of action_number_t type.
+        (conflrow): Of unsigned int type.
+        (table_ninf, base_ninf): New.
+        (GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
+        (muscle_insert_int_table, muscle_insert_base_table)
+        (muscle_insert_rule_number_table): New.
+        (prepare_tokens): Output `toknum' as int_table.
+        (action_row): Returns a rule_number_t.
+        Use ACTION_MIN, not SHRT_MIN.
+        (token_actions): yydefact is rule_number_t*.
+        (table_ninf_remap): New.
+        (pack_table): Use it for `base' and `table'.
+        * data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
+        replaced with...
+        (YYPACT_NINF, YYTABLE_NINF): these.
+        (yypact, yytable): Compute their types instead of hard-coded
+        `short'.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-07-19  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (id): Can start with an underscore.
+
+2002-07-16  Akim Demaille  <akim@epita.fr>
+
+        * src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
+        Adjust all former `associativity' dependencies.
+        * src/symtab.c (symbol_new): Default associativity is `undef', not
+        `right'.
+        (symbol_check_alias_consistence): Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Properly set the ``header'' part.
+        Use @dircategory ``GNU programming tools'' as per Texinfo's
+        documentation.
+        Use @copying.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * lib/quotearg.h: Protect against multiple inclusions.
+        * src/location.h (location_t): Add a `file' member.
+        (LOCATION_RESET, LOCATION_PRINT): Adjust.
+        * src/complain.c (warn_at, complain_at, fatal_at): Drop
+        `error_one_per_line' support.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * src/complain.h, src/complain.c (warn, complain): Remove, unused.
+        * src/reader.c (lineno): Remove.
+        Adjust all dependencies.
+        (get_merge_function): Take a location and use complain_at.
+        * src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
+        * tests/regression.at (Invalid inputs, Mixing %token styles):
+        Adjust.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (rules_or_grammar_declaration): Add an error
+        recovery rule, and forbid extensions when --yacc.
+        (gram_error): Use complain_at.
+        * src/reader.c (reader): Exit if there were parse errors.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * tests/synclines.at (AT_SYNCLINES_COMPILE): New.
+        (AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
+        Reported by R Blake <blakers@mac.com>.
+
+2002-07-09  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c: Output the copyright notive in the header.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (froms, tos): Are state_number_t.
+        (save_column): sp, sp1, and sp2 are state_number_t.
+        (prepare): Rename `final' as `final_state_number', `nnts' as
+        `nterms_number', `nrules' as `rules_number', `nstates' as
+        `states_number', and `ntokens' as `tokens_number'.  Remove `nsym',
+        unused.
+        * data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
+        * data/lalr1.cc (nsym_): Remove, unused.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h, src/lalr.c (goto_number_t): New.
+        * src/lalr.c (goto_list_t): New.
+        Propagate them.
+        * src/nullable.c (rule_list_t): New.
+        Propagate.
+        * src/types.h: Remove.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (print_fderives): Use rule_rhs_print.
+        * src/derives.c (print_derives): Use rule_rhs_print.
+        (rule_list_t): New, replaces `shorts'.
+        (set_derives): Add comments.
+        * tests/sets.at (Nullable, Firsts): Adjust.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare_actions): Free `tally' and `width'.
+        (prepare_actions): Allocate and free `order'.
+        * src/symtab.c (symbols_free): Free `symbols'.
+        * src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
+        * src/output.c (m4_invoke): Move to...
+        * src/scan-skel.l: here.
+        (<<EOF>>): Close yyout, and free its name.
+
+2002-07-03  Akim Demaille  <akim@epita.fr>
+
+        Fix some memory leaks, and fix a bug: state 0 was examined twice.
+
+        * src/LR0.c (new_state): Merge into...
+        (state_list_append): this.
+        (new_states): Merge into...
+        (generate_states): here.
+        (set_states): Don't ensure a proper `errs' state member here, do it...
+        * src/conflicts.c (conflicts_solve): here.
+        * src/state.h, src/state.c: Comment changes.
+        (state_t): Rename member `shifts' as `transitions'.
+        Adjust all dependencies.
+        (errs_new): For consistency, also take the values as argument.
+        (errs_dup): Remove.
+        (state_errs_set): New.
+        (state_reductions_set, state_transitions_set): Assert that no
+        previous value was assigned.
+        (state_free): New.
+        (states_free): Use it.
+        * src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
+        temporary storage: use `errs' and `nerrs' as elsewhere.
+        (set_conflicts): Allocate and free this `errs'.
+
+2002-07-02  Akim Demaille  <akim@epita.fr>
+
+        * lib/libiberty.h: New.
+        * lib: Update the bitset implementation from upstream.
+        * src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
+        * src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
+        * src/main.c: Adjust bitset stats calls.
+
+2002-07-01  Paul Eggert  <eggert@twinsun.com>
+
+        * src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
+        char, so that negative chars don't collide with $.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        Have the GLR tests be `warning' checked, and fix the warnings.
+
+        * data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
+        (yyuserAction, yyreportAmbiguity): `Use' all the arguments.
+        (yyremoveDeletes): `yyi' and `yyj' are size_t.
+        Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
+        (yyaddDeferredAction): static.
+        (yyglrReduce): yyi, yyk, amd yyposn are size_t.
+        (yyreportParseError): yyprefix is const.
+        yytokenp is used only when verbose.
+        (yy__GNUC__): Replace with __GNUC__.
+        (yypdumpstack): yyi is size_t.
+        (yypreference): Un-yy local variables and arguments, to avoid
+        clashes with `yyr1'.  Anyway, we are not in the user name space.
+        (yytname_size): be an int, as is compared with ints.
+        * tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
+        Use them.
+        * tests/cxx-gram.at: Use quotation to protect $1.
+        Use AT_COMPILE to enable warnings hunts.
+        Prototype yylex and yyerror.
+        `Use' argc.
+        Include `string.h', not `strings.h'.
+        Produce and prototype stmtMerge only when used.
+        yylex takes a location.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        We spend a lot of time in quotearg, in particular when --verbose.
+
+        * src/symtab.c (symbol_get): Store a quoted version of the key.
+        (symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
+        Adjust all callers.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (reductions_t): Rename member `nreds' as num.
+        (errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
+        * src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
+        (SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
+        (shifts_to): Rename as...
+        (transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
+        (TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
+        (TRANSITION_IS_DISABLED, transitions_to): these.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c (print_shifts, print_gotos): Merge into...
+        (print_transitions): this.
+        (print_transitions, print_errs, print_reductions): Align the
+        lookaheads columns.
+        (print_core, print_transitions, print_errs, print_state,
+        print_grammar): Output empty lines separator before, not after.
+        (state_default_rule_compute): Rename as...
+        (state_default_rule): this.
+        * tests/conflicts.at (Defaulted Conflicted Reduction),
+        (Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
+        * tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        Display items as we display rules.
+
+        * src/gram.h, src/gram.c (rule_lhs_print): New.
+        * src/gram.c (grammar_rules_partial_print): Use it.
+        * src/print.c (print_core): Likewise.
+        * tests/conflicts.at (Defaulted Conflicted Reduction),
+        (Unresolved SR Conflicts): Adjust.
+        (Unresolved SR Conflicts): Adjust and rename as...
+        (Resolved SR Conflicts): this, as was meant.
+        * tests/regression.at (Web2c Report): Adjust.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c (state_default_rule_compute): New, extracted from...
+        (print_reductions): here.
+        Pessimize, but clarify the code.
+        * tests/conflicts.at (Defaulted Conflicted Reduction): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (action_row): Let default_rule be always a rule
+        number.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (print_firsts, print_fderives, closure):
+        Use BITSET_EXECUTE.
+        * src/lalr.c (lookaheads_print): Likewise.
+        * src/state.c (state_rule_lookaheads_print): Likewise.
+        * src/print_graph.c (print_core): Likewise.
+        * src/print.c (print_reductions): Likewise.
+        * src/output.c (action_row): Likewise.
+        Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/print_graph.c: Use report_flag.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (traverse, digraph, matrix_print, transpose): Move
+        to...
+        * src/relation.h, src/relation.c (traverse, relation_digraph)
+        (relation_print, relation_transpose): New.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (shifts_to): New.
+        * src/lalr.c (build_relations): Use it.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
+        (item_number_of_rule_number, rule_number_of_item_number): New.
+        * src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
+        * src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+        * src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
+        Propagate their use.
+        Much remains to be done, in particular wrt `shorts' from types.h.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c (symbol_new): Initialize the `printer' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (save_reductions): Remove, replaced by...
+        * src/state.h, src/state.c (state_reductions_set): New.
+        (reductions, errs): Rename as...
+        (reductions_t, errs_t): these.
+        Adjust all dependencies.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (state_list_t, state_list_append): New.
+        (first_state, last_state): Now symbol_list_t.
+        (this_state): Remove.
+        (new_itemsets, append_states, save_reductions): Take a state_t as
+        argument.
+        (set_states, generate_states): Adjust.
+        (save_shifts): Remove, replaced by...
+        * src/state.h, src/state.c (state_shifts_set): New.
+        (shifts): Rename as...
+        (shifts_t): this.
+        Adjust all dependencies.
+        * src/state.h (state_t): Remove the `next' member.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/vcg.c (quote): Use slot 2, since we often pass symbol tag
+        escaped in slot 0.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        Use hash.h for the state hash table.
+
+        * src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
+        (allocate_storage): Use state_hash_new.
+        (free_storage): Use state_hash_free.
+        (new_state, get_state): Adjust.
+        * src/lalr.h, src/lalr.c (states): Move to...
+        * src/states.h (state_t): Remove the `link' member, no longer
+        used.
+        * src/states.h, src/states.c: here.
+        (state_hash_new, state_hash_free, state_hash_lookup)
+        (state_hash_insert, states_free): New.
+        * src/states.c (state_table, state_compare, state_hash): New.
+        * src/output.c (output_actions): Do not free states now, since we
+        still need to know the final_state number in `prepare', called
+        afterwards.  Do it...
+        * src/main.c (main): here: call states_free after `output'.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (state_new): New, extracted from...
+        * src/LR0.c (new_state): here.
+        * src/state.h (STATE_ALLOC): Move to...
+        * src/state.c: here.
+        * src/LR0.h, src/LR0.c (nstates, final_state): Move to...
+        * src/state.h, src/state.c: here.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (gensym): Rename as...
+        * src/symtab.h, src/symtab.c (dummy_symbol_get): this.
+        (getsym): Rename as...
+        (symbol_get): this.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (state_number_t, STATE_NUMBER_MAX): New.
+        * src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
+        * src/output.c, src/print.c, src/print_graph.c: Propagate.
+        * src/LR0.h, src/LR0.h (final_state): Is a state_t*.
+
+2002-06-30  Akim Demaille  <akim@epita.fr>
+
+        Make the test suite pass with warnings checked.
+
+        * tests/actions.at (Printers and Destructors): Improve.
+        Avoid unsigned vs. signed issues.
+        * tests/calc.at: Don't exercise the scanner here, do it...
+        * tests/input.at (Torturing the Scanner): here.
+
+2002-06-28  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/glr.c: Correct typo in Emacs-mode directive.  Slightly
+        reorganize first lines parallel to yacc.c.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+        * data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
+        (b4_token_enum, b4_token_defines): New, factored from...
+        * data/lalr1.cc, data/yacc.c, glr.c: here.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+        * data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
+        unused variables.
+        * src/output.c (merger_output): static.
+
+2002-06-28  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
+        * src/conflicts.c (conflicts_total_count): `i' is unsigned, to
+        pacify GCC.
+        * src/output.c (save_row): Initialize all the variables to pacify GCC.
+
+2002-06-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        Accumulated changelog for new GLR parsing features.
+
+        * src/conflicts.c (count_total_conflicts): Change name to
+        conflicts_total_count.
+        * src/conflicts.h: Ditto.
+        * src/output.c (token_actions): Use the new name.
+        (output_conflicts): Change conflp => conflict_list_heads, and
+        confl => conflict_list for better readability.
+        * data/glr.c: Use the new names.
+        * NEWS: Add self to GLR announcement.
+
+        * src/reader.c (free_merger_functions): Cleanup: XFREE->free.
+
+        * doc/bison.texinfo (GLR Parsers): Make corrections suggested by
+        Akim Demaille.
+
+        * data/bison.glr: Change name to glr.c
+        * data/glr.c: Renamed from bison.glr.
+        * data/Makefile.am: Add glr.c
+
+        * src/getargs.c:
+
+        * src/symlist.h:  Add dprec and merger fields to symbol_list_s.
+        * src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
+
+        Originally 2002-06-16  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/bison.glr: Be sure to restore the
+        current #line when returning to the skeleton contents after having
+        exposed the input file's #line.
+
+        Originally 2002-06-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/bison.glr: Bring up to date with changes to bison.simple.
+
+        Originally 2002-06-03  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/bison.glr: Correct definitions that use b4_prefix.
+        Various reformatting.
+        (GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
+        (yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
+        yytokenp argument; now part of stack.
+        (yychar): Define to behave as documented.
+        (yyclearin): Ditto.
+
+        Originally 2002-05-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * src/reader.h: Add declaration for free_merger_functions.
+
+        * src/reader.c (merge_functions): New variable.
+        (get_merge_function): New function.
+        (free_merger_functions): New function.
+        (readgram): Check for %prec that is not followed by a symbol.
+        Handle %dprec and %merge declarations.
+        (packgram): Initialize dprec and merger fields in rules array.
+
+        * src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
+        conflict_list_cnt, conflict_list_free): New variables.
+        (table_grow): Also grow conflict_table.
+        (prepare_rules): Output dprec and merger tables.
+        (conflict_row): New function.
+        (action_row): Output conflict lists for GLR parser.  Don't use
+        default reduction in conflicted states for GLR parser so that there
+        are spaces for the conflict lists.
+        (save_row): Also save conflict information.
+        (token_actions): Allocate conflict list.
+        (merger_output): New function.
+        (pack_vector): Pack conflict table, too.
+        (output_conflicts): New function to output yyconflp and yyconfl.
+        (output_check): Allocate conflict_tos.
+        (output_actions): Output conflict tables, also.
+        (output_skeleton): Output b4_mergers definition.
+        (prepare): Output b4_max_rhs_length definition.
+        Use 'bison.glr' as default skeleton for GLR parsers.
+
+        * src/gram.c (glr_parser): New flag.
+        (grammar_free): Call free_merger_functions.
+
+        * src/conflicts.c (count_rr_conflicts): Augment to optionally count
+        all pairs of conflicting reductions, rather than just all tokens
+        causing conflicts.  Needed to size conflict tables.
+        (conflicts_output): Modify call to count_rr_conflicts for new
+        interface.
+        (conflicts_print): Ditto.
+        (count_total_conflicts): New function.
+
+        * src/reader.h (merger_list): New type.
+        (merge_functions): New variable.
+
+        * src/lex.h (tok_dprec, tok_merge): New token types.
+
+        * src/gram.h (rule_s): Add dprec and merger fields.
+        (glr_parser): New flag.
+
+        * src/conflicts.h (count_total_conflicts): New function.
+
+        * src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
+
+        * doc/bison.texinfo (Generalized LR Parsing): New section.
+        (GLR Parsers): New section.
+        (Language and Grammar): Mention GLR parsing.
+        (Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
+        Correct typo ("tge" -> "the").
+
+        * data/bison.glr: New skeleton for GLR parsing.
+
+        * tests/cxx-gram.at: New tests for GLR parsing.
+
+        * tests/testsuite.at: Include cxx-gram.at.
+
+        * tests/Makefile.am: Add cxx-gram.at.
+
+        * src/parse-gram.y:
+
+        * src/scan-gram.l: Add %dprec, %glr-parser, %merge.
+
+        * src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+        * src/options.h, src/options.c: Remove.
+        * src/getargs.c (short_options, long_options): New.
+
+2002-06-27  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple, data/bison.c++: Rename as...
+        * data/yacc.c, data/lalr1.cc: these.
+        * doc/bison.texinfo (Environment Variables): Remove.
+
+2002-06-25  Raja R Harinath  <harinath@cs.umn.edu>
+
+        * src/getargs.c (report_argmatch): Initialize strtok().
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (b4_symbol_actions): New, replaces...
+        (b4_symbol_destructor, b4_symbol_printer): these.
+        (yysymprint): Be sure to call YYPRINT only for tokens, and using
+        user token numbers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (yydestructor): Rename as...
+        (yydestruct): this.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_type_set)
+        (symbol_destructor_set, symbol_precedence_set): The location is
+        the last argument.
+        Adjust all callers.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
+        internals.
+        * src/reader.h, src/reader.c (grammar_current_rule_prec_set):
+        Takes a location.
+        * src/symtab.h, src/symtab.c (symbol_class_set)
+        (symbol_user_token_number_set): Likewise.
+        Adjust all callers.
+        Promote complain_at.
+        * tests/input.at (Type Clashes): Adjust.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (YYLEX): Fix the declaration when
+        %pure-parser.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (yysymprint): Don't print the token number,
+        just its name.
+        * tests/actions.at (Destructors): Rename as...
+        (Printers and Destructors): this.
+        Also exercise %printer.
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (YYDSYMPRINT): New.
+        Use it to remove many of the #if YYDEBUG/if (yydebug).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_t): printer and
+        printer_location are new members.
+        (symbol_printer_set): New.
+        * src/parse-gram.y (PERCENT_PRINTER): New token.
+        Handle its associated rule.
+        * src/scan-gram.l: Adjust.
+        (handle_destructor_at, handle_destructor_dollar): Rename as...
+        (handle_symbol_code_at, handle_symbol_code_dollar): these.
+        * src/output.c (symbol_printers_output): New.
+        (output_skeleton): Call it.
+        * data/bison.simple (yysymprint): New.  Cannot be named yyprint
+        since there are already many grammar files with a user `yyprint'.
+        Replace the calls to YYPRINT to calls to yysymprint.
+        * tests/calc.at: Adjust.
+        * tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
+        taking advantage of parser very internal details (stack size!).
+
+2002-06-20  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l: Complete the scanner with the missing patterns
+        to pacify Flex.
+        Use `quote' and `symbol_tag_get' where appropriate.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at (Destructors): Augment to test locations.
+        * data/bison.simple (yydestructor): Pass it the current location
+        if locations are enabled.
+        Prototype only when __STDC__ or C++.
+        Change the argument names to move into the yy name space: there is
+        user code here.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (b4_pure_if): New.
+        Use it instead of #ifdef YYPURE.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (b4_location_if): New.
+        Use it instead of #ifdef YYLSP_NEEDED.
+
+2002-06-19  Akim Demaille  <akim@epita.fr>
+
+        Prepare @$ in %destructor, but currently don't bind it in the
+        skeleton, as %location use is not cleaned up yet.
+
+        * src/scan-gram.l (handle_dollar, handle_destructor_at)
+        (handle_action_at): New.
+        (handle_at, handle_action_dollar, handle_destructor_dollar): Take
+        a braced_code_t and a location as additional arguments.
+        (handle_destructor_dollar): Instead of requiring `b4_eval', just
+        unquote one when outputting `b4_dollar_dollar'.
+        Adjust callers.
+        * data/bison.simple (b4_eval): Remove.
+        (b4_symbol_destructor): Adjust.
+        * tests/input.at (Invalid @n): Adjust.
+
+2002-06-19  Zack Weinberg  <zack@codesourcery.com>
+
+        * doc/bison.texinfo: Document ability to have multiple
+        prologue sections.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (compute_base_names): When computing the output file
+        names from the input file name, strip the directory part.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple.new: Comment changes.
+        Reported by Andreas Schwab.
+
+2002-06-18  Matt Kraai  <kraai@alumni.cmu.edu>
+
+        * data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
+        there are no `label `yyoverflowlab' defined but not used' warnings
+        when yyoverflow is defined.
+
+2002-06-18  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
+        new member.
+        (symbol_destructor_set): Adjust.
+        * src/output.c (symbol_destructors_output): Output the destructor
+        locations.
+        Output the symbol name.
+        * data/bison.simple (b4_symbol_destructor): Adjust.
+
+2002-06-18  Cris Bailiff  <c.bailiff@awayweb.com>
+        and Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
+        what's left on the stack when the error recovery hits EOF.
+        * tests/actions.at (Destructors): Complete to exercise this case.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+        * data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
+        arguments is really empty, not only equal to `[]'.
+        * src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
+        member.
+        (symbol_destructor_set): New.
+        * src/output.c (symbol_destructors_output): New.
+        * src/reader.h (brace_code_t, current_braced_code): New.
+        * src/scan-gram.l (BRACED_CODE): Use it to branch on...
+        (handle_dollar): Rename as...
+        (handle_action_dollar): this.
+        (handle_destructor_dollar): New.
+        * src/parse-gram.y (PERCENT_DESTRUCTOR): New.
+        (grammar_declaration): Use it.
+        * data/bison.simple (yystos): Is always defined.
+        (yydestructor): New.
+        * tests/actions.at (Destructors): New.
+        * tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+        * src/symlist.h, src/symlist.c (symbol_list_length): New.
+        * src/scan-gram.l (handle_dollar, handle_at): Compute the
+        rule_length only when needed.
+        * src/output.c (actions_output, token_definitions_output): Output
+        the full M4 block.
+        * src/symtab.c: Don't access directly to the symbol tag, use
+        symbol_tag_get.
+        * src/parse-gram.y: Use symbol_list_free.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.h, src/reader.c (symbol_list, symbol_list_new)
+        (symbol_list_prepend, get_type_name): Move to...
+        * src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
+        (symbol_list_prepend, symbol_list_n_type_name_get): here.
+        Adjust all callers.
+        (symbol_list_free): New.
+        * src/scan-gram.l (handle_dollar): Takes a location.
+        * tests/input.at (Invalid $n): Adjust.
+
+2002-06-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.h, src/reader.c (symbol_list_new): Export it.
+        (symbol_list_prepend): New.
+        * src/parse-gram.y (%union): `list' is a new member.
+        (symbols.1): New, replaces...
+        (terms_to_prec.1, nterms_to_type.1): these.
+        * src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
+        Take a location as additional argument.
+        Adjust all callers.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y: Move %token in the declaration section so that
+        we don't depend upon CVS Bison.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (state_rule_lookaheads_print): New.
+        * src/print.c (print_core): Use it.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (log_resolution): Accept the rule involved in
+        the sr conflicts instead of the lookahead number that points to
+        that rule.
+        (flush_reduce): Accept the current lookahead vector as argument,
+        instead of the index in LA.
+        (resolve_sr_conflict): Accept the current number of lookahead
+        bitset to consider for the STATE, instead of the index in LA.
+        (set_conflicts): Adjust.
+        * src/lalr.c, src/lalr.h, src/state.h: Comment changes.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (state_t): Replace the `lookaheadsp' member, a
+        short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
+        Adjust all dependencies.
+        * src/lalr.c (initialize_lookaheads): Split into...
+        (states_lookaheads_count, states_lookaheads_initialize): these.
+        (lalr): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
+        out of...
+        (grammar_rules_print): here.
+        * src/reduce.c (reduce_output): Use it.
+        * tests/reduce.at (Useless Rules, Reduced Automaton)
+        (Underivable Rules): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        Copy BYacc's nice way to report the grammar.
+
+        * src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
+        New.
+        Don't print the rules' location, it is confusing and useless.
+        (rule_print): Use grammar_rhs_print.
+        * src/print.c (print_grammar): Use grammar_rules_print.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        Complete and rationalize `useless thing' warnings.
+
+        * src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
+        (symbol_tag_print): New.
+        Use them everywhere in place of accessing directly the tag member.
+        * src/gram.h, src/gram.c (rule_print): New.
+        Use it where a rule used to be printed `by hand'.
+        * src/reduce.c (nonterminals_reduce): Report the use nonterminals.
+        (reduce_grammar_tables): Report the useless rules.
+        (reduce_print): Useless things are a warning, not an error.
+        Report it as such.
+        * tests/reduce.at (Useless Nonterminals, Useless Rules):
+        (Reduced Automaton, Underivable Rules): Adjust.
+        * tests/regression.at (Web2c Report, Web2c Report): Adjust.
+        * tests/conflicts.at (Unresolved SR Conflicts)
+        (Solved SR Conflicts): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        Let symbols have a location.
+
+        * src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
+        (getsym): Adjust.
+        Adjust all callers.
+        * src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
+        Use location_t, not int.
+        * src/symtab.c (symbol_check_defined): Take advantage of the
+        location.
+        * tests/regression.at (Invalid inputs): Adjust.
+
+2002-06-15  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
+        (input): Don't try to initialize yylloc here, do it in the
+        scanner.
+        * src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
+        * src/gram.h (rule_t): Change line and action_line into location
+        and action_location, of location_t type.
+        Adjust all dependencies.
+        * src/location.h, src/location.c (empty_location): New.
+        * src/reader.h, src/reader.c (grammar_start_symbol_set)
+        (grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
+        (grammar_current_rule_symbol_append)
+        (grammar_current_rule_action_append): Expect a location as argument.
+        * src/reader.c (grammar_midrule_action): Adjust to attach an
+        action's location as dummy symbol location.
+        * src/symtab.h, src/symtab.c (startsymbol_location): New.
+        * tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
+        the line numbers.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        Grammar declarations may be found in the grammar section.
+
+        * src/parse-gram.y (rules_or_grammar_declaration): New.
+        (declarations): Each declaration may end with a semicolon, not
+        just...
+        (grammar_declaration): `"%union"'.
+        (grammar): Branch to rules_or_grammar_declaration.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * src/main.c (main): Invoke scanner_free.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (m4_invoke): Extracted from...
+        (output_skeleton): here.
+        Free tempfile.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-gram.y (directives, directive, gram)
+        (grammar_directives, precedence_directives, precedence_directive):
+        Rename as...
+        (declarations, declaration, grammar, grammar_declaration)
+        (precedence_declaration, precedence_declarator): these.
+        (symbol_declaration): New.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (action_obstack): Remove, unused.
+        (output_obstack): Remove it, and all its dependencies, as it is no
+        longer needed.
+        * src/reader.c (epilogue_set): Build the epilogue in the
+        muscle_obstack.
+        * src/output.h, src/output.c (muscle_obstack): Move to...
+        * src/muscle_tab.h, src/muscle_tab.h: here.
+        (muscle_init): Initialize muscle_obstack.
+        (muscle_free): New.
+        * src/main.c (main): Call it.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * src/location.h: New, extracted from...
+        * src/reader.h: here.
+        * src/Makefile.am (noinst_HEADERS): Merge into
+        (bison_SOURCES): this.
+        Add location.h.
+        * src/parse-gram.y: Use location_t instead of Bison's.
+        * src/reader.h, src/reader.c (prologue_augment, epilogue_set):
+        Use location_t instead of ints.
+
+2002-06-14  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple, data/bison.c++: Be sure to restore the
+        current #line when returning to the skeleton contents after having
+        exposed the input file's #line.
+
+2002-06-12  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
+        eager.
+        * tests/actions.at (Exotic Dollars): New.
+
+2002-06-12  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
+        ['"/] too eagerly.
+        * tests/input.at (Torturing the Scanner): New.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
+        [SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
+        [SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
+        * src/reader.h, src/scan-gram.l (scanner_initialize): this.
+        * src/reader.c (reader): Use it.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
+        Adjust all callers.
+        (scanner_last_string_free): New.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
+        (YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
+        (last_string, YY_OBS_FREE): New.
+        Use them when returning an ID.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        Have Bison grammars parsed by a Bison grammar.
+
+        * src/reader.c, src/reader.h (prologue_augment): New.
+        * src/reader.c (copy_definition): Remove.
+
+        * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
+        (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
+        (grammar_current_rule_prec_set, grammar_current_rule_check)
+        (grammar_current_rule_symbol_append)
+        (grammar_current_rule_action_append): Export.
+        * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
+        (symbol_list_action_append): Remove.
+        Hook the routines from reader.
+        * src/scan-gram.l: In INITIAL, characters and strings are tokens.
+        * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
+
+        * src/reader.c (read_declarations): Remove, unused.
+
+        * src/parse-gram.y: Handle the epilogue.
+        * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
+        (grammar_start_symbol_set): this.
+        * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
+        * src/reader.c (readgram): Remove, unused.
+        (reader): Adjust to insert eoftoken and axiom where appropriate.
+
+        * src/reader.c (copy_dollar): Replace with...
+        * src/scan-gram.h (handle_dollar): this.
+        * src/parse-gram.y: Remove `%thong'.
+
+        * src/reader.c (copy_at): Replace with...
+        * src/scan-gram.h (handle_at): this.
+
+        * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
+        New.
+
+        * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
+        time being.
+
+        * src/reader.h, src/reader.c (grammar_rule_end): New.
+
+        * src/parse.y (current_type, current_class): New.
+        Implement `%nterm', `%token' support.
+        Merge `%term' into `%token'.
+        (string_as_id): New.
+        * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
+        type name.
+
+        * src/parse-gram.y: Be sure to handle properly the beginning of
+        rules.
+
+        * src/parse-gram.y: Handle %type.
+        * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
+
+        * src/parse-gram.y: More directives support.
+        * src/options.c: No longer handle source directives.
+
+        * src/parse-gram.y: Fix %output.
+
+        * src/parse-gram.y: Handle %union.
+        Use the prologue locations.
+        * src/reader.c (parse_union_decl): Remove.
+
+        * src/reader.h, src/reader.c (epilogue_set): New.
+        * src/parse-gram.y: Use it.
+
+        * data/bison.simple, data/bison.c++: b4_stype is now either not
+        defined, then default to int, or to the contents of %union,
+        without `union' itself.
+        Adjust.
+        * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
+
+        * src/output.c (actions_output): Don't output braces, as they are
+        already handled by the scanner.
+
+        * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
+        characters to themselves.
+
+        * tests/reduce.at (Reduced Automaton): End the grammars with %% so
+        that the epilogue has a proper #line.
+
+        * src/parse-gram.y: Handle precedence/associativity.
+
+        * src/symtab.c (symbol_precedence_set): Requires the symbol to be
+        a terminal.
+        * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
+        * tests/calc.at: Do not use `%token "foo"' as it makes not sense
+        at all to define terminals that cannot be emitted.
+
+        * src/scan-gram.l: Escape M4 characters.
+
+        * src/scan-gram.l: Working properly with escapes in user
+        strings/characters.
+
+        * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
+        (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
+        grammar.
+        Use more modest sizes, as for the time being the parser does not
+        release memory, and therefore the process swallows a huge amount
+        of memory.
+
+        * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
+        stricter %token grammar.
+
+        * src/symtab.h (associativity): Add `undef_assoc'.
+        (symbol_precedence_set): Do nothing when passed an undef_assoc.
+        * src/symtab.c (symbol_check_alias_consistence): Adjust.
+
+        * tests/regression.at (Invalid %directive): Remove, as it is now
+        meaningless.
+        (Invalid inputs): Adjust to the new error messages.
+        (Token definitions): The new grammar doesn't allow too many
+        eccentricities.
+
+        * src/lex.h, src/lex.c: Remove.
+        * src/reader.c (lastprec, skip_to_char, read_signed_integer)
+        (copy_character, copy_string2, copy_string, copy_identifier)
+        (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
+        (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
+        (parse_action): Remove.
+        * po/POTFILES.in: Adjust.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_action): Don't store directly into the
+        rule's action member: return the action as a string.
+        Don't require `rule_length' as an argument: compute it.
+        (grammar_current_rule_symbol_append)
+        (grammar_current_rule_action_append): New, eved out from
+        (readgram): here.
+        Remove `action_flag', `rulelength', unused now.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_current_rule_prec_set).
+        (grammar_current_rule_check): New, eved out from...
+        (readgram): here.
+        Remove `xaction', `first_rhs': useless.
+        * tests/input.at (Type clashes): New.
+        * tests/existing.at (GNU Cim Grammar): Adjust.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_midrule_action): New, Eved out from
+        (readgram): here.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_rule_begin, previous_rule, current_rule):
+        New.
+        (readgram): Use them as replacement of inlined code, crule and
+        crule1.
+
+2002-06-11  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (grammar_end, grammar_symbol_append): New.
+        (readgram): Use them.
+        Make the use of `p' as local as possible.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+        GCJ's parser requires the tokens to be defined before the prologue.
+
+        * data/bison.simple: Output the token definition before the user's
+        prologue.
+        * tests/regression.at (Braces parsing, Duplicate string)
+        (Mixing %token styles): Check the output from bison.
+        (Early token definitions): New.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c (symbol_user_token_number_set): Don't complain when
+        assigning twice the same user number to a token, so that we can
+        use it in...
+        * src/lex.c (lex): here.
+        Also use `symbol_class_set' instead of hand written code.
+        * src/reader.c (parse_assoc_decl): Likewise.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c, src/symtab.c (symbol_class_set)
+        (symbol_user_token_number_set): New.
+        * src/reader.c (parse_token_decl): Use them.
+        Use a switch instead of ifs.
+        Use a single argument.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+        Remove `%thong' support as it is undocumented, unused, duplicates
+        `%token's job, and creates useless e-mail traffic with people who
+        want to know what it is, why it is undocumented, unused, and
+        duplicates `%token's job.
+
+        * src/reader.c (parse_thong_decl): Remove.
+        * src/options.c (option_table): Remove "thong".
+        * src/lex.h (tok_thong): Remove.
+
+2002-06-10  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c, src/symtab.c (symbol_type_set)
+        (symbol_precedence_set): New.
+        * src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
+        (value_components_used): Remove, unused.
+
+2002-06-09  Akim Demaille  <akim@epita.fr>
+
+        Move symbols handling code out of the reader.
+
+        * src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
+        (axiom): Move to...
+        * src/symtab.h, src/symtab.c: here.
+
+        * src/gram.c (start_symbol): Remove: use startsymbol->number.
+        * src/reader.c (startval): Rename as...
+        * src/symtab.h, src/symtab.c (startsymbol): this.
+        * src/reader.c: Adjust.
+
+        * src/reader.c (symbol_check_defined, symbol_make_alias)
+        (symbol_check_alias_consistence, symbol_pack, symbol_translation)
+        (token_translations_init)
+        Move to...
+        * src/symtab.c: here.
+        * src/reader.c (packsymbols): Move to...
+        * src/symtab.h, src/symtab.c (symbols_pack): here.
+        * src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
+        argument.
+
+2002-06-03  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
+        then statements.
+
+2002-06-03  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
+        structs with non literals.
+        * src/scan-skel.l: never-interactive.
+        * src/conflicts.c (enum conflict_resolution_e): No trailing
+        comma.
+        * src/getargs.c (usage): Split long literal strings.
+        Reported by Hans Aberg.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++: Use C++ ostreams.
+        (cdebug_): New member.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_skeleton): Be sure to allocate enough room
+        for `/' _and_ for `\0' in full_skeleton.
+
+2002-05-28  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++: Catch up with bison.simple:
+        2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+        and Paul Eggert  <eggert@twinsun.com>: `error' handing.
+        2002-05-26  Akim Demaille  <akim@epita.fr>: stos_, token_number_,
+        and popping traces.
+
+2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * src/output.c (output_skeleton): Put an explicit path in front of
+        the skeleton file name, rather than relying on the -I directory,
+        to partially alleviate effects of having a skeleton file lying around
+        in the current directory.
+
+2002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * src/conflicts.c (log_resolution): Correct typo:
+        obstack_printf should be obstack_fgrow1.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (state_t): `solved_conflicts' is a new member.
+        * src/LR0.c (new_state): Set it to 0.
+        * src/conflicts.h, src/conflicts.c (print_conflicts)
+        (free_conflicts, solve_conflicts): Rename as...
+        (conflicts_print, conflicts_free, conflicts_solve): these.
+        Adjust callers.
+        * src/conflicts.c (enum conflict_resolution_e)
+        (solved_conflicts_obstack): New, used by...
+        (log_resolution): this.
+        Adjust to attach the conflict resolution to each state.
+        Complete the description with the precedence/associativity
+        information.
+        (resolve_sr_conflict): Adjust.
+        * src/print.c (print_state): Output its solved_conflicts.
+        * tests/conflicts.at (Unresolved SR Conflicts)
+        (Solved SR Conflicts): Exercise --report=all.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+        * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+        * src/reader.c, src/reduce.c, src/state.h, src/symtab.h
+        (token_number_t, item_number_as_token_number)
+        (token_number_as_item_number, muscle_insert_token_number_table):
+        Rename as...
+        (symbol_number_t, item_number_as_symbol_number)
+        (symbol_number_as_item_number, muscle_insert_symbol_number_table):
+        these, since it is more appropriate.
+
+2002-05-26  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
+        `Error:' lines.
+        * data/bison.simple (yystos) [YYDEBUG]: New.
+        (yyparse) [YYDEBUG]: Display the symbols which are popped during
+        error recovery.
+        * tests/regression.at (Web2c Actions): Adjust: yystos is output now.
+
+2002-05-25  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Debugging): Split into...
+        (Tracing): this new section, its former contents, and...
+        (Understanding): this new section.
+        * src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
+        by...
+        (report_flag): this.
+        Adjust all dependencies.
+        (report_args, report_types, report_argmatch): New.
+        (usage, getargs): Report/support -r, --report.
+        * src/options.h
+        (struct option_table_struct): Rename as..,
+        (struct option_table_s): this.
+        Rename the `set_flag' member to `flag' to match with getopt_long's
+        struct.
+        * src/options.c (option_table): Split verbose into an entry for
+        %verbose, and another for --verbose.
+        Support --report/-r, so remove -r from the obsolete --raw.
+        * src/print.c: Attach full item sets and lookaheads reports to
+        report_flag instead of trace_flag.
+        * lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
+
+2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+        and Paul Eggert  <eggert@twinsun.com>
+
+        * data/bison.simple (yyparse): Correct error handling to conform to
+        POSIX and yacc.  Specifically, after syntax error is discovered,
+        do not reduce further before shifting the error token.
+        Clean up the code a bit by removing the labels yyerrdefault,
+        yyerrhandle, yyerrpop.
+        * NEWS: Document the above.
+
+2002-05-20  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * data/bison.simple (yyr1): Don't use yy_token_number_type as element
+        type; it isn't always big enough, since it doesn't necessarily
+        include non-terminals.
+        (yytranslate): Expand definition of yy_token_number_type, so that
+        the latter can be removed.
+        (yy_token_number_type): Remove, only one use.
+        * data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
+        don't use TokenNumberType as element type.
+
+        * tests/regression.at: Modify expected output to agree with change
+        to yyr1 and yytranslate.
+
+2002-05-13  Florian Krohm  <florian@edamail.fishkill.ibm.com>
+
+        * src/reader.c (parse_action): Use copy_character instead of
+        obstack_1grow.
+
+2002-05-13  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Token definitions): Prototype yylex and
+        yyerror.
+
+2002-05-12  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
+
+        * src/scan-skel.l: Correct off-by-one error in handling of __oline__.
+        * data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
+        32-bit arithmetic.
+        * data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
+
+2002-05-07  Akim Demaille  <akim@epita.fr>
+
+        * tests/synclines.at: Be sure to prototype yylex and yyerror to
+        avoid GCC warnings.
+
+2002-05-07  Akim Demaille  <akim@epita.fr>
+
+        Kill GCC warnings.
+
+        * src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
+        over the RHS of each rule.
+        * src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
+        * src/state.h (state_t): Member `nitems' is unsigned short.
+        * src/LR0.c (get_state): Adjust.
+        * src/reader.c (packgram): Likewise.
+        * src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
+        `Type'.
+        (muscle_insert_int_table): Remove, unused.
+        (prepare_rules): Remove `max'.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (print_firsts): Display of the symbol tags.
+        (bitmatrix_print): Move to...
+        * lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
+        here.
+        * tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_m4_output): Must return TRUE for
+        hash_do_for_each.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_state, get_state): Instead of using the global
+        `kernel_size' and `kernel_base', have two new arguments:
+        `core_size' and `core'.
+        Adjust callers.
+
+2002-05-06  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (packgram): No longer end `ritem' with a 0
+        sentinel: it is not used.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+        New experimental feature: display the lookaheads in the report and
+        graph.
+
+        * src/print (print_core): When --trace-flag, display the rules
+        lookaheads.
+        * src/print_graph.c (print_core): Likewise.
+        Swap the arguments.
+        Adjust caller.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+        * tests/torture.at (Many lookaheads): New test.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
+        (GENERATE_MUSCLE_INSERT_TABLE): this.
+        (output_int_table, output_unsigned_int_table, output_short_table)
+        (output_token_number_table, output_item_number_table): Replace with...
+        (muscle_insert_int_table, muscle_insert_unsigned_int_table)
+        (muscle_insert_short_table, muscle_insert_token_number_table)
+        (muscle_insert_item_number_table): these.
+        Adjust all callers.
+        (prepare_tokens): Don't free `translations', since...
+        * src/reader.h, src/reader.c (grammar_free): do it.
+        Move to...
+        * src/gram.h, src/gram.c (grammar_free): here.
+        * data/bison.simple, data/bison.c++: b4_token_number_max is now
+        b4_translate_max.
+
+2002-05-05  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_unsigned_int_table): New.
+        (prepare_rules): `i' is unsigned.
+        `prhs', `rline', `r2' are unsigned int.
+        Rename muscle `rhs_number_max' as `rhs_max'.
+        Output muscles `prhs_max', `rline_max', and `r2_max'.
+        Free rline and r1.
+        * data/bison.simple, data/bison.c++: Adjust to use these muscles
+        to compute types instead of constant types.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-05-04  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h (SALIAS, SUNDEF): Rename as...
+        (USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
+        Adjust dependencies.
+        * src/output.c (token_definitions_output): Be sure not to output a
+        `#define 'a'' when fed with `%token 'a' "a"'.
+        * tests/regression.at (Token definitions): New.
+
+2002-05-03  Paul Eggert  <eggert@twinsun.com>
+
+        * data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
+        for K&R C.
+
+2002-05-03  gettextize  <bug-gnu-gettext@gnu.org>
+
+        * Makefile.am (SUBDIRS): Remove intl.
+        (EXTRA_DIST): Add config/config.rpath.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (m4_if): Don't output empty enums.
+        And actually, output valid enum definitions :(.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+        * configure.bat: Remove, completely obsolete.
+        * Makefile.am (EXTRA_DIST): Adjust.
+        Don't distribute config.rpath...
+        * config/Makefile.am (EXTRA_DIST): Do it.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+        * configure.in (GETTEXT_VERSION): New.
+        Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (b4_token_enum): New.
+        (b4_token_defines): Use it to output tokens both as #define and
+        enums.
+        Suggested by Paul Eggert.
+        * src/output.c (token_definitions_output): Don't output spurious
+        white spaces.
+
+2002-05-03  Akim Demaille  <akim@epita.fr>
+
+        * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+
+2002-05-02  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
+        Update the stack class, give a try to deque as the default container.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (yyparse): Do not implement @$ = @1.
+        (YYLLOC_DEFAULT): Adjust to do it.
+        * doc/bison.texinfo (Location Default Action): Fix.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_braces): Merge into...
+        (parse_action): this.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        * configure.in (ALL_LINGUAS): Remove.
+        * po/LINGUAS, hr.po: New.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        Remove the so called hairy (semantic) parsers.
+
+        * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
+        * src/gram.h, src/gram.c (semantic_parser): Remove.
+        (rule_t): Remove the guard and guard_line members.
+        * src/lex.h (token_t): remove tok_guard.
+        * src/options.c (option_table): Remove %guard and %semantic_parser
+        support.
+        * src/output.c, src/output.h (guards_output): Remove.
+        (prepare): Adjust.
+        (token_definitions_output): Don't output the `T'
+        tokens (???).
+        (output_skeleton): Don't output the guards.
+        * src/files.c, src/files.c (attrsfile): Remove.
+        * src/reader.c (symbol_list): Remove the guard and guard_line
+        members.
+        Adjust dependencies.
+        (parse_guard): Remove.
+        * data/bison.hairy: Remove.
+        * doc/bison.texinfo (Environment Variables): Remove occurrences of
+        BISON_HAIRY.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
+        (parse_guard): Rename the formal argument `stack_offset' as
+        `rule_length', which is more readable.
+        Adjust callers.
+        (copy_at, copy_dollar): Instead of outputting the hard coded
+        values of $$, $n and so forth, output invocation to b4_lhs_value,
+        b4_lhs_location, b4_rhs_value, and b4_rhs_location.
+        Note: this patch partially drops `semantic-parser' support: it
+        always does `rule_length - n', where semantic parsers ought to
+        always use `-n'.
+        * data/bison.simple, data/bison.c++ (b4_lhs_value)
+        (b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        * configure.in (AC_INIT): Bump to 1.49b.
+        (AM_INIT_AUTOMAKE): Short invocation.
+
+2002-05-02  Akim Demaille  <akim@epita.fr>
+
+        Version 1.49a.
+
+2002-05-01  Akim Demaille  <akim@epita.fr>
+
+        * src/skeleton.h: Remove.
+
+2002-05-01  Akim Demaille  <akim@epita.fr>
+
+        * src/skeleton.h: Fix the #endif.
+        Reported by Magnus Fromreide.
+
+2002-04-26  Paul Eggert  <eggert@twinsun.com>
+
+        * data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
+        Define if we define YYSTYPE and YYLTYPE, respectively.
+        (YYCOPY): Fix [] quoting problem in the non-GCC case.
+
+2002-04-25  Robert Anisko  <robert@lrde.epita.fr>
+
+        * src/scan-skel.l: Postprocess quadrigraphs.
+
+        * src/reader.c (copy_character): New function, used to output
+        single characters while replacing `[' and `]' with quadrigraphs, to
+        avoid troubles with M4 quotes.
+        (copy_comment): Output characters with copy_character.
+        (read_additionnal_code): Likewise.
+        (copy_string2): Likewise.
+        (copy_definition): Likewise.
+
+        * tests/calc.at: Exercise M4 quoting.
+
+2002-04-25  Akim Demaille  <akim@epita.fr>
+
+        * tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
+        between `!' and the command.
+        Reported by Paul Eggert.
+
+2002-04-24  Robert Anisko  <robert@lrde.epita.fr>
+
+        * tests/calc.at: Exercise prologue splitting.
+
+        * data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
+        `b4_post_prologue' instead of `b4_prologue'.
+
+        * src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
+        muscles.
+        (output): Free pre_prologue_obstack and post_prologue_obstack.
+        * src/files.h, src/files.c (attrs_obstack): Remove.
+        (pre_prologue_obstack, post_prologue_obstack): New.
+        * src/reader.c (copy_definition): Add a parameter to specify the
+        obstack to fill, instead of using attrs_obstack unconditionally.
+        (read_declarations): Pass pre_prologue_obstack to copy_definition if
+        `%union' has not yet been seen, pass post_prologue_obstack otherwise.
+
+2002-04-23  Paul Eggert  <eggert@twinsun.com>
+
+        * data/bison.simple: Remove unnecessary commentary and white
+        space differences from 1_29-branch.
+        Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
+
+        (union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
+        YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
+        if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
+        constructors or destructors.
+
+        (yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
+
+2002-04-23  Akim Demaille  <akim@epita.fr>
+
+        * tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
+        * tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
+        location with columns.
+        * tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
+        All reported by Paul Eggert.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (dump_grammar): Move to...
+        * src/gram.h, src/gram.c (grammar_dump): here.
+        Be sure to separate long item numbers.
+        Don't read the members of a rule's prec if its nil.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (table_size, table_grow): New.
+        (MAXTABLE): Remove, replace uses with table_size.
+        (pack_vector): Instead of dying when the table is too big, grow it.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.simple (yyr1): Its type is that of a token number.
+        * data/bison.c++ (r1_): Likewise.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (token_translations_init): 256 is now the default
+        value for the error token, i.e., it will be assigned another
+        number if the user assigned 256 to one of her tokens.
+        (reader): Don't force 256 to error.
+        * doc/bison.texinfo (Symbols): Adjust.
+        * tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
+        (AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
+        etc. instead of 10, 20, 30 (which was used to `jump' over error
+        (256) and undefined (2)).
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        Propagate more token_number_t.
+
+        * src/gram.h (token_number_as_item_number)
+        (item_number_as_token_number): New.
+        * src/output.c (GENERATE_OUTPUT_TABLE): New.
+        Use it to create output_item_number_table and
+        output_token_number_table.
+        * src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
+        * src/lex.c, src/nullable.c, src/output.c, src/print.c,
+        * src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
+        * src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
+
+2002-04-22  Akim Demaille  <akim@epita.fr>
+
+        * src/output.h, src/output.c (get_lines_number): Remove.
+
+2002-04-19  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Actions): Make clear that `|' is not the same
+        as Lex/Flex'.
+        (Debugging): More details about enabling the debugging features.
+        (Table of Symbols): Describe $$, $n, @$, and @n.
+        Suggested by Tim Josling.
+
+2002-04-19  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Remove the uses of the obsolete @refill.
+
+2002-04-10  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Rely on HAVE_LIMITS_H.
+        Suggested by Paul Eggert.
+
+2002-04-09  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
+        full stderr, and strip it according to the bison options, instead
+        of composing the error message from different bits.
+        This makes it easier to check for several error messages.
+        Adjust all the invocations.
+        Add an invocation exercising the error token.
+        Add an invocation demonstrating a stupid error message.
+        (_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
+        Adjust the tests.
+        Error message are for stderr, not stdout.
+
+2002-04-09  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (error_token_number): Remove, use
+        errtoken->number.
+        * src/reader.c (reader): Don't specify the user token number (2)
+        for $undefined, as it uselessly prevents using it.
+        * src/gram.h (token_number_t): Move to...
+        * src/symtab.h: here.
+        (state_t.number): Is a token_number_t.
+        * src/print.c, src/reader.c: Use undeftoken->number instead of
+        hard coded 2.
+        (Even though this 2 is not the same as above: the number of the
+        undeftoken remains being 2, it is its user token number which
+        might not be 2).
+        * src/output.c (prepare_tokens): Rename the `maxtok' muscle with
+        `user_token_number_max'.
+        Output `undef_token_number'.
+        * data/bison.simple, data/bison.c++: Use them.
+        Be sure to map invalid yylex return values to
+        `undef_token_number'.  This saves us from gratuitous SEGV.
+
+        * tests/conflicts.at (Solved SR Conflicts)
+        (Unresolved SR Conflicts): Adjust.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
+        Adding #line.
+        Remove the duplicate `typedefs'.
+        (RhsNumberType): Fix the declaration and various other typos.
+        Use __ofile__.
+        * data/bison.simple: Use __ofile__.
+        * src/scan-skel.l: Handle __ofile__.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (item_number_t): New, the type of item numbers in
+        RITEM.  Note that it must be able to code symbol numbers as
+        positive number, and the negation of rule numbers as negative
+        numbers.
+        Adjust all dependencies (pretty many).
+        * src/reduce.c (rule): Remove this `short *' pointer: use
+        item_number_t.
+        * src/system.h (MINSHORT, MAXSHORT): Remove.
+        Include `limits.h'.
+        Adjust dependencies to using SHRT_MAX and SHRT_MIN.
+        (shortcpy): Remove.
+        (MAXTABLE): Move to...
+        * src/output.c (MAXTABLE): here.
+        (prepare_rules): Use output_int_table to output rhs.
+        * data/bison.simple, data/bison.c++: Adjust.
+        * tests/torture.at (Big triangle): Move the limit from 254 to
+        500.
+        * tests/regression.at (Web2c Actions): Ajust.
+
+        Trying with bigger grammars shows various phenomena: at 3000 (28Mb
+        of grammar file) bison is killed by my system, at 2000 (12Mb) bison
+        passes, but produces negative #line number, once fixed, GCC is
+        killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
+        C), it passes.
+        * src/state.h (state_h): Code input lines on ints, not shorts.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (reduce_grammar): First reduce the nonterminals,
+        and then the grammar.
+
+2002-04-08  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: No longer using strndup.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
+        * src/output.c (output_table_data): Return the longest number.
+        (prepare_tokens): Output `token_number_max').
+        * data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
+        New.
+        Use them to define yy_token_number_type/TokenNumberType.
+        Use this type for yytranslate.
+        * tests/torture.at (Big triangle): Push the limit from 124 to
+        253.
+        * tests/regression.at (Web2c Actions): Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * tests/torture.at (Big triangle): New.
+        (GNU AWK Grammar, GNU Cim Grammar): Move to...
+        * tests/existing.at: here.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (nitems): Remove, it is an alias of
+        nritems.
+        Adjust dependencies.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c: Normalize increments to prefix form.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c, symtab.c: Remove debugging code.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        Rename all the `bucket's as `symbol_t'.
+
+        * src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
+        * src/reader.c, src/reader.h, src/reduce.c, src/state.h,
+        * src/symtab.c, src/symtab.h (bucket): Rename as...
+        (symbol_t): this.
+        (symbol_list_new, bucket_check_defined, bucket_make_alias)
+        (bucket_check_alias_consistence, bucket_pack, bucket_translation)
+        (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+        (buckets_new, buckets_free, buckets_do): Rename as...
+        (symbol_list_new, symbol_check_defined, symbol_make_alias)
+        (symbol_check_alias_consistence, symbol_pack, symbol_translation)
+        (symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
+        (symbols_new, symbols_free, symbols_do): these.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        Use lib/hash for the symbol table.
+
+        * src/gram.c (ntokens): Initialize to 1, to reserve a slot for
+        EOF.
+        * src/lex.c (lex): Set the `number' member of new terminals.
+        * src/reader.c (bucket_check_defined, bucket_make_alias)
+        (bucket_check_alias_consistence, bucket_translation): New.
+        (reader, grammar_free, readgram, token_translations_init)
+        (packsymbols): Adjust.
+        (reader): Number the predefined tokens.
+        * src/reduce.c (inaccessable_symbols): Just use hard coded numbers
+        for predefined tokens.
+        * src/symtab.h (bucket): Remove all the hash table related
+        members.
+        * src/symtab.c (symtab): Replace by...
+        (bucket_table): this.
+        (bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
+        (buckets_new, buckets_do): New.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
+        (start_symbol, max_user_token_number, semantic_parser)
+        (error_token_number): Initialize.
+        * src/reader.c (grammar, start_flag, startval, typed, lastprec):
+        Initialize.
+        (reader): Don't.
+        (errtoken, eoftoken, undeftoken, axiom): Extern.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_s): prec and precsym are now pointers
+        to the bucket giving the priority/associativity.
+        Member `associativity' removed: useless.
+        * src/reduce.c, src/conflicts.c: Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
+        Properly escape the symbols' TAG when outputting them.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (LA): Is a bitsetv, not bitset*.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h, src/lalr.c (LAruleno): Replace with...
+        (LArule): this, which is an array to rule_t*.
+        * src/print.c, src/conflicts.c: Adjust.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_t): Rename `number' as `user_number'.
+        `number' is a new member.
+        Adjust dependencies.
+        * src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        As a result of the previous patch, it is no longer needed
+        to reorder ritem itself.
+
+        * src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        Be sure never to walk through RITEMS, but use only data related to
+        the rules themselves. RITEMS should be banished.
+
+        * src/output.c (output_token_translations): Rename as...
+        (prepare_tokens): this.
+        In addition to `translate', prepare the muscles `tname' and
+        `toknum', which were handled by...
+        (output_rule_data): this.
+        Remove, and move the remainder of its outputs into...
+        (prepare_rules): this new routines, which also merges content from
+        (output_gram): this.
+        (prepare_rules): Be sure never to walk through RITEMS.
+        (output_stos): Rename as...
+        (prepare_stos): this.
+        (output): Always invoke prepare_states, after all, just don't use it
+        in the output if you don't need it.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_state): Display `nstates' as the name of the
+        newly created state.
+        Adjust to initialize first_state and last_state if needed.
+        Be sure to distinguish the initial from the final state.
+        (new_states): Create the itemset of the initial state, and use
+        new_state.
+        * src/closure.c (closure): Now that the initial state has its
+        items properly set, there is no need for a special case when
+        creating `ruleset'.
+
+        As a result, now the rule 0, reducing to $axiom, is visible in the
+        outputs.  Adjust the test suite.
+
+        * tests/conflicts.at (Solved SR Conflicts)
+        (Unresolved SR Conflicts): Adjust.
+        * tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
+        * tests/conflicts.at (S/R in initial): New.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
+        the RHS of the rules.
+        * src/output.c (output_gram): Likewise.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
+        bucket.
+        Adjust all dependencies.
+        * src/reduce.c (nonterminals_reduce): Don't forget to renumber the
+        `number' of the buckets too.
+        * src/gram.h: Include `symtab.h'.
+        (associativity): Move to...
+        * src/symtab.h: here.
+        No longer include `gram.h'.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (rules_rhs_length): New.
+        (ritem_longest_rhs): Use it.
+        * src/gram.h (rule_t): `number' is a new member.
+        * src/reader.c (packgram): Set it.
+        * src/reduce.c (reduce_grammar_tables): Move the useless rules at
+        the end of `rules', and count them out of `nrules'.
+        (reduce_output, dump_grammar): Adjust.
+        * src/print.c (print_grammar): It is no longer needed to check for
+        the usefulness of a rule, as useless rules are beyond `nrules + 1'.
+        * tests/reduce.at (Reduced Automaton): New test.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
+        lacking `+ 1' to nrules, Bison reported as useless a token if it
+        was used solely to set the precedence of the last rule...
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++, data/bison.simple: Don't output the current file
+        name in #line, to avoid useless diffs between two identical
+        outputs under different names.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c, src/print.c, src/reader.c, src/reduce.c:
+        Normalize loops to using `< nrules + 1', not `<= nrules'.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * TODO: Update.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
+        bucket.value as bucket.number.
+
+2002-04-07  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
+        * src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
+        * src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
+        RHS, instead of being an index in RITEMS.
+
+2002-04-04  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo: Update copyright date.
+        (Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
+        (Symbols): Warn about running Bison in one character set,
+        but compiling and/or running in an incompatible one.
+        Warn about character code 256, too.
+
+2002-04-03  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.data (YYSTACK_ALLOC): Depend on whether
+        YYERROR_VERBOSE is nonzero, not whether it is defined.
+
+        Merge changes from bison-1_29-branch.
+
+2002-03-20  Paul Eggert  <eggert@twinsun.com>
+
+        Merge fixes from Debian bison_1.34-1.diff.
+
+        * configure.in (AC_PREREQ): 2.53.
+
+2002-03-20  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (log_resolution): Argument `resolution' is const.
+
+2002-03-19  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYCOPY): New macro.
+        (YYSTACK_RELOCATE): Use it.
+        Remove Type arg; no longer needed.  All callers changed.
+        (yymemcpy): Remove; no longer needed.
+
+        * Makefile.am (AUTOMAKE_OPTIONS): 1.6.
+        * doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+        Test and fix the #line outputs.
+
+        * tests/atlocal.at (GCC): New.
+        * tests/synclines.at (AT_TEST_SYNCLINE): New macro.
+        (Prologue synch line, %union synch line, Postprologue synch line)
+        (Action synch line, Epilogue synch line): New tests.
+        * src/reader.c (parse_union_decl): Define the muscle stype_line.
+        * data/bison.simple, data/bison.c++: Use it.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
+        (Solved SR Conflicts, %expect not enough, %expect right)
+        (%expect too much): Move to...
+        * tests/conflicts.at: this new file.
+
+2002-03-19  Akim Demaille  <akim@epita.fr>
+
+        * data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
+        * data/bison.simple, data/bison.c++: Handle the `#define' part, so
+        that we can move to enums for instance.
+        * src/output.c (token_definitions_output): Output a list of
+        `token-name, token-number' instead of the #define.
+        (output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
+
+2002-03-14  Akim Demaille  <akim@epita.fr>
+
+        Use Gettext 0.11.1.
+
+2002-03-09  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Make the user able to add members to the generated
+        parser by subclassing.
+
+2002-03-05  Robert Anisko  <robert@lrde.epita.fr>
+
+        * src/reader.c (read_additionnal_code): `c' should be an integer, not
+        a character.
+        Reported by Nicolas Tisserand and Nicolas Burrus.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+        * src/reader.c: Warn about lacking semi-colons, do not complain.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Remove a debug line.
+
+2002-03-04  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Unmerge value as yylval and value as yyval.  Unmerge
+        location as yylloc and location as yyloc.  Use YYLLOC_DEFAULT, and
+        provide a default implementation.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
+        * tests/output.at (AT_CHECK_OUTPUT): Likewise.
+        * tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
+        * tests/semantic.at (Parsing Guards): Similarly.
+        * src/reader.at (readgram): Complain if the last rule is not ended
+        with a semi-colon.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
+        * src/closure.c: here.
+        (set_firsts): Use bitsetv_reflexive_transitive_closure instead of
+        RTC.
+        * src/warshall.h, src/warshall.c: Remove.
+        * tests/sets.at (Broken Closure): Adjust.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_skeleton): tempdir is const.
+        bytes_read is unused.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+        * lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
+        Update.
+        From Michael Hayes.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): `r' is unused.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * tests/sets.at (Broken Closure): Add the ending `;'.
+        * src/reader.at (readgram): Complain if a rule is not ended with a
+        semi-colon.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
+        (count_sr_conflicts): Use bitset_count.
+        * src/reduce.c (inaccessable_symbols): Ditto.
+        (bits_size): Remove.
+        * src/warshall.h, src/warshall.c: Convert to bitsetv.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
+        * src/reduce.c: Remove the `bitset_zero's following the
+        `bitset_create's, as now it is performed by the latter.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
+        * lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
+        * lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
+        latest sources from Michael.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output): Don't free the grammar.
+        * src/reader.c (grammar_free): New.
+        * src/main.c (main): Call it and don't free symtab here.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
+        before returning.
+        Reported by Benoit Perrot.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        Use bitset operations when possible, not loops over bits.
+
+        * src/conflicts.c (set_conflicts, count_sr_conflicts): Use
+        bitset_or.
+        * src/print.c (print_reductions): Use bitset_and, bitset_andn.
+        * src/reduce.c (useless_nonterminals): Formatting changes.
+        * src/warshall.c (TC): Use bitset_or.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
+        * src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
+        Ditto.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (F): Now a bitset*.
+        Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (shiftset, lookaheadset): Now bitset.
+        Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/L0.c, src/LR0.h (nstates): Be size_t.
+        Adjust comparisons (signed vs unsigned).
+        * src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
+        bitset*.
+        Adjust all dependencies.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (firsts): Now, also a bitset.
+        Adjust all dependencies.
+        (varsetsize): Remove, now unused.
+        * src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c: Convert to use bitset.h, not hand coded iterations
+        over ints.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c: Convert to use bitset.h, not hand coded BSet.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (ruleset): Be a bitset.
+        (rulesetsize): Remove.
+
+2002-03-04  Akim Demaille  <akim@epita.fr>
+
+        * lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
+        * lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
+        * lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
+        * src/closure.c (fderives): Be an array of bitsets.
+
+2002-02-28  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Merge the two generated headers.  Insert a copyright
+        notice in each output file.
+
+2002-02-28  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++: Copy the prologue of bison.simple to fetch
+        useful M4 definitions, such as b4_header_guard.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (version): Give the name of the authors, and use a
+        translator friendly scheme for the bgr
+        copyright notice.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (header_output): Remove, now handled completely via
+        M4.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+        * m4/m4.m4: New, from CVS Autoconf.
+        * configure.in: Invoke it.
+        * src/output.c (output_skeleton): Use its result instead of the
+        hard coded name.
+
+2002-02-25  Akim Demaille  <akim@epita.fr>
+
+        * lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
+        Fileutils 4.1.5.
+        * configure.in: Invoke UTILS_FUNC_MKSTEMP.
+        * src/output.c (output_skeleton): Use mkstemp to create a real
+        temporary file.
+        Move the filling of `skeleton' and its muscle to...
+        (prepare): here.
+        (output): Move the definition of the prologue muscle to...
+        (prepare): here.
+        * src/system.h (DEFAULT_TMPDIR): New.
+
+2002-02-14  Paul Eggert  <eggert@twinsun.com>
+
+        Remove the support for C++ namespace cleanliness; it was
+        causing more problems than it was curing, since it didn't work
+        properly on some nonstandard C++ compilers.  This can wait
+        for a proper C++ parser.
+
+        * NEWS: Document this.
+        * doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
+        of C++, as it's treated like C now.
+        * src/bison.simple (YYSTD): Remove.
+        (YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
+        Treat C++ just like Standard C instead of trying to support
+        namespace cleanliness.
+
+2002-02-14  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (else): Adjust to Andreas' change.
+
+2002-02-14  Akim Demaille  <akim@epita.fr>
+
+        * lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
+
+2002-02-13  Andreas Schwab  <schwab@suse.de>
+
+        * src/output.c (output_rule_data): Don't output NULL, it might
+        not be defined yet.
+
+2002-02-11  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
+        (Copyright notice): Update.
+
+2002-02-11  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (%nonassoc and eof): Don't include
+        nonportable headers.
+
+2002-02-08  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Correct error recovery.  Make the user able to
+        initialize the starting location.
+
+2002-02-07  Akim Demaille  <akim@epita.fr>
+
+        * tests/input.at: New.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Replace some direct m4 expansions by constants.  Be
+        more consistent when naming methods and variables.  Put preprocessor
+        directives around tables only needed for debugging.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
+        C++ parsers.
+        (yy::b4_name::parse): Use print_.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++ (yy::b4_name::parse): Error recovery is back.
+
+2002-02-07  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
+        C++ parsers.
+        (yy::b4_name::parse): Build verbose error messages, and use error_.
+
+2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Fix m4 quoting in comments.
+
+2002-02-06  Robert Anisko  <robert@lrde.epita.fr>
+
+        * data/bison.c++: Adjust the parser code.  Fix some muscles that were
+        not expanded by m4.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+        * data/bison.c++: Adjust to the M4 back end.
+        More is certainly needed.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+        Give a try to M4 as a back end.
+
+        * lib/readpipe.c: New, from wdiff.
+        * src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
+        BISON_HAIRY.
+        * src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
+        specific values.  Now it is m4 that performs the lookup.
+        * src/parse-skel.y: Remove.
+        * src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
+        * src/output.c (actions_output, guards_output)
+        (token_definitions_output): No longer keeps track of the output
+        line number, hence remove the second argument.
+        (guards_output): Check against the guard member of a rule, not the
+        action member.
+        Adjust callers.
+        (output_skeleton): Don't look for the skeleton location, let m4 do
+        that.
+        Create `/tmp/muscles.m4'.  This is temporary, a proper temporary
+        file will be used.
+        Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
+        (prepare): Given that for the time being changesyntax is not
+        usable in M4, rename the muscles using `-' to `_'.
+        Define `defines_flag', `output_parser_name' and `output_header_name'.
+        * src/output.h (actions_output, guards_output)
+        (token_definitions_output): Adjust prototypes.
+        * src/scan-skel.l: Instead of scanning the skeletons, it now
+        processes the output of m4: `__oline__' and `#output'.
+        * data/bison.simple: Adjust to be used by M4(sugar).
+        * tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
+        to date.
+        * tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
+        instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
+        * data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
+        shamelessly stolen from CVS Autoconf.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+        * lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
+        * configure.in: Check for the declarations of free and malloc.
+        * src/muscle_tab.c: Adjust.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_init): Don't default to NULL muscle
+        which have no values.
+
+2002-02-05  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
+        * data/: here.
+
+2002-01-29  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYSIZE_T): Do not define merely because
+        YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
+        On some platforms, <alloca.h> does not declare YYSTD (size_t).
+
+2002-01-27  Akim Demaille  <akim@epita.fr>
+
+        Fix `%nonassoc and eof'.
+
+        * src/state.c (errs_dup): Aaaah!  The failure was due to bytes
+        which were not properly copied!  Replace
+        memcpy (res->errs, src->errs, src->nerrs);
+        with
+        memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
+        !!!
+        * tests/regression.at (%nonassoc and eof): Adjust to newest
+        Autotest: `.' is not in the PATH.
+
+2002-01-27  Akim Demaille  <akim@epita.fr>
+
+        * tests/sets.at (AT_EXTRACT_SETS): New.
+        (Nullable): Use it.
+        (Firsts): New.
+
+2002-01-26  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at, tests/calc.at, tests/headers.at,
+        * tests/torture.at: Adjust to the newest Autotest which no longer
+        forces `.' in the PATH.
+
+2002-01-25  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (%nonassoc and eof): New.
+        Suggested by Robert Anisko.
+
+2002-01-24  Akim Demaille  <akim@epita.fr>
+
+        Bison dumps core when trying to complain about broken input files.
+        Reported by Cris van Pelt.
+
+        * src/lex.c (parse_percent_token): Be sure to set token_buffer.
+        * tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
+        into...
+        (Invalid inputs): Strengthen: exercise parse_percent_token.
+
+2002-01-24  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/Makefile.am: Add bison.c++.
+        * src/bison.c++: New skeleton.
+
+2002-01-21  Paolo Bonzini <bonzini@gnu.org>
+
+        * po/it.po: New.
+
+2002-01-21  Kees Zeelenberg  <kzlg@users.sourceforge.net>
+
+        * src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+        * src/files.c (compute_output_file_names): Fix
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+        * tests/output.at: New test.
+        * src/files.c (compute_base_names): Don't map extensions when
+        the YACC flag is set, use defaults.
+        Reported by Evgeny Stambulchik.
+
+2002-01-20  Marc Autret  <marc@gnu.org>
+
+        * src/system.h: Need to define __attribute__ away for non-GCC
+        compilers as well (i.e., the vendor C compiler).
+        Suggested by Albert Chin-A-Young.
+
+2002-01-11  Tim Van Holder  <tim.van.holder@pandora.be>
+
+        * lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
+        canonical definition.
+        * src/system.h: Use the canonical definition for PARAMS (avoids
+        a conflict with the macro from lib/hash.h).
+
+2002-01-11  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Use AC_FUNC_STRNLEN.
+        Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
+
+2002-01-09  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c, src/files.h (output_infix): New.
+        (tab_extension): Remove.
+        (compute_base_names): Compute the former, drop the latter.
+        * src/output.c (prepare): Insert the muscles `output-infix', and
+        `output-suffix'.
+        * src/parse-skel.y (string, string.1): New.
+        (section.header): Use it.
+        (section.yacc): Remove.
+        (prefix): Remove too.
+        * src/scan-skel.l: Adjust.
+        * src/bison.simple, src/bison.hairy: Adjust.
+
+2002-01-09  Akim Demaille  <akim@epita.fr>
+
+        * configure.in (WERROR_CFLAGS): Compute it.
+        * src/Makefile.am (CFLAGS): Pass it.
+        * tests/atlocal.in (CFLAGS): Idem.
+        * src/files.c: Fix a few warnings.
+        (get_extension_index): Remove, unused.
+
+2002-01-08  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (AS_FILE_NAME): New.
+        (getargs): Use it to convert DOSish file names.
+        * src/files.c (base_name): Rename as full_base_name to avoid
+        clashes with `base_name ()'.
+        (filename_split): New.
+        (compute_base_names): N-th rewrite, using filename_split.
+
+2002-01-08  Akim Demaille  <akim@epita.fr>
+
+        * lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
+        New, stolen from the Fileutils 4.1.
+        * lib/Makefile.am (libbison_a_SOURCES): Adjust.
+        * configure.in: Check for the presence of memrchr, and of its
+        prototype.
+
+2002-01-07  Tim Van Holder  <tim.van.holder@pandora.be>
+
+        * lib/hash.h (__P): Added definition for this macro.
+        * src/Makefile.am: Add parse-skel.c and scan-skel.c to
+        BUILT_SOURCES, to ensure they are generated first.
+        * src/parse-skel.y: Use YYERROR_VERBOSE instead of
+        %error-verbose to allow bootstrapping with bison 1.30x.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_braces): Don't fetch the next char, the
+        convention is to fetch on entry.
+        * tests/torture.at (GNU Cim Grammar): Reintroduce their weird
+        'switch' without a following semicolon.
+        * tests/regression.at (braces parsing): New.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+        Bison is dead wrong in its RR conflict reports.
+
+        * tests/torture.at (GNU Cim Grammar): New.
+        * src/conflicts.c (count_rr_conflicts): Fix.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+        Creating package.m4 from configure.ac causes too many problems.
+
+        * tests/Makefile.am (package.m4): Create it by hand,
+        AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
+
+2002-01-06  Akim Demaille  <akim@epita.fr>
+
+        * src/Makefile.am (bison_SOURCES): Add parse-skel.h and
+        skeleton.h.
+
+2002-01-04  Paul Eggert  <eggert@twinsun.com>
+
+        * doc/bison.texinfo (Debugging):
+        Remove YYSTDERR; it's no longer defined or used.
+        Also, s/cstdio.h/cstdio/.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+        * tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-skel.y (process_skeleton): Don't bind the parser's
+        tracing code to --trace, wait for a better --trace option, with
+        args.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (YYSTDERR): Remove, replace `stderr'.
+        The ISO C++ standard is extremely clear about it: stderr is
+        considered a macro, not a regular symbol (see table 94 `Header
+        <cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
+        Therefore std:: does not apply to it.  It still does with fprintf.
+        Also, s/cstdio.h/cstdio/.
+
+2002-01-03  Akim Demaille  <akim@epita.fr>
+
+        * lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
+        for non system headers.
+
+2002-01-02  Akim Demaille  <akim@epita.fr>
+
+        Equip the skeleton chain with location tracking, runtime trace,
+        pure parser and scanner.
+
+        * src/parse-skel.y: Request a pure parser, locations, and prefix
+        renaming.
+        (%union): Having several members with the same type does not help
+        type mismatches, simplify.
+        (YYPRINT, yyprint): New.
+        (yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
+        (skel_error): this.
+        Handle locations.
+        * src/scan-skel.l: Adjust to these changes.
+        * src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
+        (LOCATION_PRINT, skel_control_t): New.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+        * src/parse-skel.y: Get rid of the shift/reduce conflict:
+        replace `gb' with BLANKS.
+        * src/scan-skel.l: Adjust.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: We don't need nor want bcopy.
+        Throw away MS-DOS crap: we don't need getpid.
+        * configure.in: We don't need strndup.  It was even causing
+        problems: because Flex includes the headers *before* us,
+        _GNU_SOURCE is not defined by config.h, and therefore strndup was
+        not visible.
+        * lib/xstrndup.c: New.
+        * src/scan-skel.l: Use it.
+        Be sure to initialize yylval.muscle member when scanning a MUSCLE.
+        * src/parse-skel.y: Use %directives instead of #defines.
+
+2001-12-30  Akim Demaille  <akim@epita.fr>
+
+        * src/skeleton.h: New.
+        * src/output.c (output_parser, output_master_parser): Remove, dead
+        code.
+        * src/output.h (get_lines_number, actions_output, guards_output)
+        (token_definitions_output): Prototype them.
+        * src/parse-skel.y: Add the license notice.
+        Include output.h and skeleton.h.
+        (process_skeleton): Returns void, and takes a single parameter.
+        * src/scan-skel.l: Add the license notice.
+        Include skeleton.h.
+        Don't use %option yylineno: it seems that then Flex imagines
+        REJECT has been used, and therefore it won't reallocate its
+        buffers (which makes no other sense to me than a bug).  It results
+        in warnings for `unused: yy_flex_realloc'.
+
+2001-12-30  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+        (MUSCLE_INSERT_PREFIX): ...to there.
+        * src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
+        (MUSCLE_INSERT_PREFIX): Move from here...
+
+        * src/bison.hairy: Add a section directive.  Put braces around muscle
+        names.  This parser skeleton is still broken, but Bison should not
+        choke on a bad muscle 'syntax'.
+        * src/bison.simple: Add a section directive.  Put braces around muscle
+        names.
+
+        * src/files.h (strsuffix, stringappend): Add declarations.
+        (tab_extension): Add declaration.
+        (short_base_name): Add declaration.
+
+        * src/files.c (strsuffix, stringappend): No longer static.  These
+        functions are used in the skeleton parser.
+        (tab_extension): New.
+        (compute_base_names): Use the computations done in this function
+        to guess if the generated parsers should have '.tab' in their
+        names.
+        (short_base_name): No longer static.
+
+        * src/output.c (output_skeleton): New.
+        (output): Disable call to output_master_parser, and give a try to
+        a new skeleton handling system.
+        (guards_output, actions_output): No longer static.
+        (token_definitions_output, get_lines_number): No longer static.
+
+        * configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
+
+        * src/Makefile.am (bison_SOURCES): Add scan-skel.l and
+        parse-skel.y.
+
+        * src/parse-skel.y: New file.
+        * src/scan-skel.l: New file.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        %name-prefix is broken.
+
+        * src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
+        Adjust all dependencies.
+        * tests/headers.at (export YYLTYPE): Strengthen this test: use
+        %name-prefix.
+
+        Renaming yylval but not yylloc is not consistent.  Now we do.
+
+        * src/bison.simple: Prefix yylloc if used.
+        * doc/bison.texinfo (Decl Summary): Document that.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Promote `%long-directive' over
+        `%long_directive'.
+        Remove all references to fixed-output-files, yacc is enough.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
+        user prologue.  These are defaults.
+        * tests/actions.at (Mid-rule actions): Make sure the user can
+        define YYDEBUG and YYERROR_VERBOSE.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (header_output): Don't forget to export YYLTYPE and
+        yylloc.
+        * tests/headers.at (export YYLTYPE): New, make sure it does.
+        * tests/regression.at (%union and --defines, Invalid CPP headers):
+        Move to...
+        * tests/headers.at: here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_s): Member `assoc' is of type `associativity'.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * tests/actions.at (Mid-rule actions): Output on a single line
+        instead of several.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Formatting changes.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        Don't store the token defs in a muscle, just be ready to output it
+        on command.  Now possible via `symbols'.  Fixes a memory leak.
+
+        * src/output.c (token_definitions_output): New.
+        (output_parser, header_output): Use it.
+        * src/reader.c (symbols_save): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple: Do not provide a default for YYSTYPE and
+        YYLTYPE before the user's prologue.  Otherwise it's hardly... a
+        default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        Mid-rule actions are simply... ignored!
+
+        * src/reader.c (readgram): Be sure to attach mid-rule actions to
+        the empty-rule associated to the dummy symbol, not to the host
+        rule.
+        * tests/actions.at (Mid-rule actions): New.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        Memory leak.
+
+        * src/reader.c (reader): Free grammar.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        Memory leak.
+
+        * src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
+        since it allocates it for each state, although only one is needed.
+        (allocate_storage): Do it here.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/options.h, src/options.c (create_long_option_table): Rename
+        as...
+        (long_option_table_new): this, with a clearer prototype.
+        (percent_table): Remove, unused,
+        * src/getargs.c (getargs): Adjust.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
+        * src/print.c, src/print_graph.c, src/state.h: Rename state_table
+        as states.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (build_relations): Rename `states' as `states1'.
+        Sorry, I don't understand exactly what it is, no better name...
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
+        * src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
+        * src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
+        as rules.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
+        ago.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c, src/reader.h (user_toknums): Remove.
+        Adjust all users to use symbols[i]->user_token_number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c, src/gram.h (sprec, sassoc): Remove.
+        Adjust all users to use symbols[i]->prec or ->assoc.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c, src/reader.h (tags): Remove.
+        Adjust all users to use symbols[i]->tag.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h, src/gram.c (symbols): New, similar to state_table
+        and rule_table.
+        * src/reader.c (packsymbols): Fill this table.
+        Drop sprec.
+        * src/conflicts.c (resolve_sr_conflict): Adjust.
+        * src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
+        single table.
+        Use symbols[i]->tag instead of tags[i].
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
+        In addition, put a comment in there, to replace...
+        * tests/regression.at (%union and C comments): Remove.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Web2c Actions): Blindly move the actual
+        output as expected output.  The contents *seem* right to me, but I
+        can't pretend reading perfectly parser tables...  Nonetheless, all
+        the other tests pass correctly, the table look OK, even though the
+        presence of `$axiom' is to be noted: AFAICS it is useless (but
+        harmless).
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (readgram): Don't add the rule 0 if there were no
+        rules read.  In other words, add it _after_ having performed
+        grammar sanity checks.
+        Fixes the `tests/regression.at (Invalid input: 1)' Failure.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Web2c Report): Catch up: the rule 0 is now
+        visible, and some states have now a different number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (readgram): Bind the initial rule's lineno to that
+        of the first rule.
+        * tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
+        (Solved SR Conflicts): Adjust rule 0's line number.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        Fix the `GAWK Grammar' failure.
+
+        * src/LR0.c (final_state): Initialize to -1 so that we do compute
+        the reductions of the first state which was mistakenly confused
+        with the final state because precisely final_state was initialized
+        to 0.
+        * tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
+        now noticed by Bison.
+        * tests/regression.at (Rule Line Numbers): Adjust: state 0 does
+        have a reduction on $default.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c (ritem_print): Be sure to subtract 1 when displaying
+        rule line numbers.
+        * src/closure.c (print_closure): Likewise.
+        * src/derives.c (print_derives): Likewise.
+        * tests/sets.at (Nullable): Adjust: the rule numbers are correct
+        now.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (lookaheads_print): New.
+        (lalr): Call it when --trace-flag.
+        * tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
+        are dumped.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
+        when walking through ritem, even via rule->rhs.
+        * src/reduce.c (dump_grammar, useful_production, reduce_output)
+        (useful_production, useless_nonterminals): Likewise.
+        (reduce_grammar_tables): Likewise, plus update nritems.
+        * src/nullable.c (set_nullable): Likewise.
+        * src/lalr.c (build_relations): Likewise.
+        * tests/sets.at (Nullable): Adjust.
+        Fortunately, now, the $axiom is no longer nullable.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (generate_states): Use nritems, not nitems, nor using
+        the 0-sentinel.
+        * src/gram.c (ritem_longest_rhs): Likewise.
+        * src/reduce.c (nonterminals_reduce): Likewise.
+        * src/print_graph.c (print_graph): Likewise.
+        * src/output.c (output_rule_data): Likewise.
+        * src/nullable.c (set_nullable):  Likewise.
+
+2001-12-29  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c: Comment changes.
+
+2001-12-27  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
+        cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
+        Sparc, as they were causing more porting problems than the
+        (minor) performance improvement was worth.
+
+        Also, catch up with 1.31's YYSTD.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_gram): Rely on nritems, not the
+        0-sentinel.  See below.
+        Use -1 as separator, not 0.
+        * src/bison.simple (yyparse): Subtract 1 to the rule numbers.
+        Rely on -1 as separator in yyrhs, instead of 0.
+        * tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
+        twice `Now at end of input', therefore there are two lines less to
+        expect.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Unresolved SR Conflicts):
+        (Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
+        below.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_state): Recognize the final state by the fact it
+        is reached by eoftoken.
+        (insert_start_shifting_state, insert_eof_shifting_state)
+        (insert_accepting_state, augment_automaton): Remove, since now
+        these states are automatically computed from the initial state.
+        (generate_states): Adjust.
+        * src/print.c: When reporting a rule number to the user, substract
+        1, so that the axiom rule is rule 0, and the first user rule is 1.
+        * src/reduce.c: Likewise.
+        * src/print_graph.c (print_core): For the time being, just as for
+        the report, depend upon --trace-flags to dump the full set of
+        items.
+        * src/reader.c (readgram): Once the grammar read, insert the rule
+        0: `$axiom: START-SYMBOL $'.
+        * tests/set.at: Adjust: rule 0 is now displayed, and since the
+        number of the states has changed (the final state is no longer
+        necessarily the last), catch up.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        Try to make the use of the eoftoken valid.  Given that its value
+        is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
+        is used instead of > 0 where appropriate, (ii), depend upon nritems
+        instead of the 0-sentinel.
+
+        * src/gram.h, src/gram.c (nritems): New.
+        Expected to be duplication of nitems, but for the time being...
+        * src/reader.c (packgram): Assert nritems and nitems are equal.
+        * src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
+        * src/closure.c (print_closure, print_fderives): Likewise.
+        * src/gram.c (ritem_print): Likewise.
+        * src/print.c (print_core, print_grammar): Likewise.
+        * src/print_graph.c: Likewise.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/main.c (main): If there are complains after grammar
+        reductions, then output the report anyway if requested, then die.
+        * src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
+        * src/reader.c (eoftoken): New.
+        (parse_token_decl): If the token being defined has value `0', it
+        is the eoftoken.
+        (packsymbols): No longer hack `tags' to insert `$' by hand.
+        Be sure to preserve the value of the eoftoken.
+        (reader): Make sure eoftoken is defined.
+        Initialize nsyms to 0: now eoftoken is created just like the others.
+        * src/print.c (print_grammar): Don't special case the eof token.
+        * src/regression.at: Adjust: `$' has value 0, not -1, which was a
+        lie anyway, albeit pleasant.
+        * tests/calc.at: Exercise error messages with eoftoken.
+        Change the grammar so that empty input is invalid.
+        Adjust expectations.
+        When yyungeting, be sure to use a valid yylloc: use last_yylloc.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Check the protos of strchr ans strspn.
+        Replace strchr if needed.
+        * src/system.h: Provide the protos of strchr, strspn and memchr if
+        missing.
+        * lib/strchr.c: New.
+        * src/reader.c (symbols_save): Use strchr.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c, src/print_graph.c (escape): New.
+        Use it to quote the TAGS outputs.
+        * src/print_graph.c (print_state): Now errors are in red, and
+        reductions in green.
+        Prefer high to wide: output the state number on a line of its own.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (reductions_new): New.
+        * src/LR0.c (set_state_table): Let all the states have a
+        `reductions', even if reduced to 0.
+        (save_reductions): Adjust.
+        * src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
+        * src/print.c (print_reductions, print_actions): Adjust.
+        * src/output.c (action_row): Adjust.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h, src/state.c (errs_new, errs_dup): New.
+        * src/LR0.c (set_state_table): Let all the states have an errs,
+        even if reduced to 0.
+        * src/print.c (print_errs, print_reductions): Adjust.
+        * src/output.c (output_actions, action_row): Adjust.
+        * src/conflicts.c (resolve_sr_conflict): Adjust.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c, src/conflicts.h (print_reductions): Move to...
+        * src/print.c: here.
+        (lookaheadset, shiftset): New, used as additional storage by
+        print_reductions.
+        (print_results): Adjust.
+        (print_shifts, print_gotos, print_errs): New, extracted from...
+        (print_actions): here.
+        * src/print_graph.c (print_actions): Remove dead code.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_dollar, copy_at): Better checking of `n' in
+        `$n' and `@n'.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (add_lookback_edge): Use state_t instead of ints.
+        (build_relations): Adjust.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (set_goto_map): Remove a wrong but benign loop
+        duplication.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (packgram): Catch nitems overflows.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c, src/files.h (guard_obstack): Remove.
+        * src/output.c (output): Adjust.
+        * src/reader.c (parse_braces): New, factoring...
+        (copy_action, copy_guard): these two which are renamed as...
+        (parse_action, parse_guard): these.
+        As a voluntary consequence, using braces around guards is now
+        mandatory.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_t): `guard' and `guard_line' are new members.
+        * src/reader.c (symbol_list): `guard' and `guard_line' are new
+        members.
+        (symbol_list_new): Adjust.
+        (copy_action): action_line is the first line, not the last.
+        (copy_guard): Just as for actions, store the `action' only, not
+        the switch/case/break flesh.
+        Don't parse the user action that might follow the guard, let...
+        (readgram): do it, i.e., now, there can be an action after a
+        guard.
+        In other words the guard is just explicitly optional.
+        (packgram): Adjust.
+        * src/output.c (guards_output): New.
+        (output_parser): Call it when needed.
+        (output): Also free the guard and attrs obstacks.
+        * src/files.c, src/files.h (obstack_save): Remove.
+        (output_files): Remove.
+        As a result, if one needs the former `.act' file, using an
+        appropriate skeleton which requires actions and guards is now
+        required.
+        * src/main.c (main): Adjust.
+        * tests/semantic.at: New.
+        * tests/regression.at: Use `input.y' as input file name.
+        Avoid 8+3 problems by requiring input.c when the test needs the
+        parser.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (symbol_list_new): Be sure to initialize all the
+        fields.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        All the hacks using a final pseudo state are now useless.
+
+        * src/LR0.c (set_state_table): state_table holds exactly nstates.
+        * src/lalr.c (nLA): New.
+        (initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
+        instead of lookaheadsp from the pseudo state (nstate + 1).
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (action_row, token_actions): Use a state_t instead
+        of a integer, and nlookaheads instead of the following state's
+        lookaheadsp.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (log_resolution, flush_shift)
+        (resolve_sr_conflict, set_conflicts, solve_conflicts)
+        (count_sr_conflicts, count_rr_conflicts, conflicts_output)
+        (conflicts_print, print_reductions): Use a state_t instead of an
+        integer when referring to a state.
+        As much as possible, depend upon nlookaheads, instead of the
+        `lookaheadsp' member of the following state (since lookaheads of
+        successive states are successive, the difference between state n + 1
+        and n served as the number of lookaheads for state n).
+        * src/lalr.c (add_lookback_edge): Likewise.
+        * src/print.c (print_core, print_actions, print_state)
+        (print_results): Likewise.
+        * src/print_graph.c (print_core, print_actions, print_state)
+        (print_graph): Likewise.
+        * src/conflicts.h: Adjust.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.hairy: Formatting/comment changes.
+        ANSIfy.
+        Remove `register' indications.
+        Add plenty of `static'.
+
+2001-12-27  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (prepare): Drop the muscle `ntbase' which
+        duplicates ntokens.
+        * src/bison.simple: Formatting/comment changes.
+        Use YYNTOKENS only, which is documented, but not YYNTBASE, which
+        is an undocumented synonym.
+
+2001-12-22  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_table_data): Change the prototype to use
+        `int' for array ranges: some invocations do pass an int, not a
+        short.
+        Reported by Wayne Green.
+
+2001-12-22  Akim Demaille  <akim@epita.fr>
+
+        Some actions of web2c.y are improperly triggered.
+        Reported by Mike Castle.
+
+        * src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
+        * tests/regression.at (Web2c): Rename as...
+        (Web2c Report): this.
+        (Web2c Actions): New.
+
+2001-12-22  Akim Demaille  <akim@epita.fr>
+
+        Reductions in web2c.y are improperly reported.
+        Reported by Mike Castle.
+
+        * src/conflicts.c (print_reductions): Fix.
+        * tests/regression.at (Web2c): New.
+
+2001-12-18  Akim Demaille  <akim@epita.fr>
+
+        Some host fail on `assert (!"foo")', which expands to
+        ((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
+        Reported by Nelson Beebee.
+
+        * src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
+        `#define it_succeeded 0' and `assert (it_succeeded)'.
+
+2001-12-17  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Don't hard code the skeleton line and filename.
+        * src/output.c (output_parser): Rename 'line' as 'output_line'.
+        New line counter 'skeleton_line' (skeleton-line muscle).
+
+2001-12-17  Paul Eggert  <eggert@twinsun.com>
+
+        * NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
+        YYDEBUG must be defined to a nonzero value.
+
+        * src/bison.simple (yytname): Do not assume that the user defines
+        YYDEBUG to a properly parenthesized expression.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (state_t): Rename lookaheads as lookaheadsp.
+        nlookaheads is a new member.
+        Adjust all users.
+        * src/lalr.h (nlookaheads): Remove this orphan declaration.
+        * src/lalr.c (initialize_lookaheads): Set nlookaheads for each
+        state.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/files.h, src/files.c (open_files, close_files): Remove.
+        * src/main.c (main): Don't open/close files, nor invoke lex_free,
+        let...
+        * src/reader.c (reader): Do it.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Formatting changes.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (flush_shift): Also adjust lookaheadset.
+        (flush_reduce): New.
+        (resolve_sr_conflict): Adjust.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_obstack): Be static and rename as...
+        (format_obstack): this, to avoid any confusion with files.c's
+        output_obstack.
+        * src/reader.h (muscle_obstack): Move to...
+        * src/output.h: here, since it's defined in output.c.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (action_row, save_column, default_goto)
+        (sort_actions, matching_state, pack_vector): Better variable
+        locality.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c: Various formatting changes.
+
+2001-12-17  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (output_files): Free the output_obstack.
+        * src/main.c (main): Call print and print_graph conditionally.
+        * src/print.c (print): Work unconditionally.
+        * src/print_graph.c (print_graph): Work unconditionally.
+        * src/conflicts.c (log_resolution): Output only if verbose_flag.
+
+2001-12-16  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.c (actions_output): Fix. When we use %no-lines,
+        there is one less line per action.
+
+2001-12-16  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Remove a useless #line directive.
+        s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
+        * src/output.c (get_lines_number): New.
+        (output_parser): Adjust, now takes care about the lines of a
+        output muscles.
+        Fix line numbering.
+        (actions_output): Computes the number of lines taken by actions.
+        (output_master_parser): Insert new skeleton which is the name of
+        the output parser file name.
+
+2001-12-15  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
+
+2001-12-15  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.c (output_gram): Keep track of the hairy one.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        Make `make distcheck' work.
+
+        * lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
+        system.h which uses libgettext.h.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        * src/nullable.c (set_nullable): Useless rules must be skipped,
+        otherwise, since we range over their symbols, we might look at a
+        nonterminal which no longer ``exists'', i.e., it is not counted in
+        `nvars', hence we overflow our arrays.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        The header can also be produced directly, without any obstack!
+        Yahoo!
+
+        * src/files.c, src/files.h (defines_obstack): Remove.
+        (compute_header_macro): Global.
+        (defines_obstack_save): Remove.
+        * src/reader.c (parse_union_decl): No longer output to
+        defines_obstack: its content can be found in the `stype' muscle
+        anyway.
+        (output_token_translations): Merge into...
+        (symbols_output): this.
+        Rename as...
+        (symbols_save): this.
+        (reader): Adjust.
+        * src/output.c (header_output): New.
+        (output): Call it.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_union_decl): Instead of handling two obstack
+        simultaneously, use one to define the `stype' muscle, and use the
+        value of the latter to fill defines_obstack.
+        (copy_comment): Remove.
+        (copy_comment2): Work for a single obstack.
+        Rename as...
+        (copy_comment): this.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c, src/lex.h (xgetc): No longer static.
+        * src/reader.c (parse_union_decl): Revamp.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        Still making progress in separating Bison into (i) input, (ii)
+        process, (iii) output: now we can directly output the parser file
+        without using table_obstack at all.
+
+        * src/files.c, src/files.h (table_obstack): Bye bye.
+        (parser_file_name): New.
+        * src/files.c (compute_output_file_names): Compute it.
+        * src/output.c (actions_output, output_parser)
+        (output_master_parser): To a file instead of an obstack.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        Attach actions to rules, instead of pre-outputting them to
+        actions_obstack.
+
+        * src/gram.h (rule_t): action and action_line are new members.
+        * src/reader.c (symbol_list): Likewise.
+        (copy_action): Save the actions within the rule.
+        (packgram): Save them in rule_table.
+        * src/output.c (actions_output): New.
+        (output_parser): Use it on `%%actions'.
+        (output_rule_data): Don't free rule_table.
+        (output): Do it.
+        (prepare): Don't save the `action' muscle.
+        * src/bison.simple: s/%%action/%%actions/.
+
+2001-12-15  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_action): When --yacc, don't append a `;'
+        to the user action: let it fail if lacking.
+        Suggested by Arnold Robbins and Tom Tromey.
+
+2001-12-14  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c (literalchar): Simply return the char you decoded, non
+        longer mess around with obstacks and int pointers.
+        Adjust all callers.
+
+2001-12-14  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c (literalchar): Don't escape the special characters,
+        just decode them, and keep them as char (before, eol was output as
+        the 2 char string `\n' etc.).
+        * src/output.c (output_rule_data): Use quotearg to output the
+        token strings.
+
+2001-12-13  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
+        Do not infringe on the global user namespace when using C++.
+        (YYFPRINTF, YYSTDERR): New macros, needed for the above.
+        All uses of `fprintf' and `stderr' changed.
+
+        * doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
+
+2001-12-13  Akim Demaille  <akim@epita.fr>
+
+        The computation of nullable is broken: it doesn't handle empty
+        RHS's properly.
+
+        * tests/torture.at (GNU AWK Grammar): New.
+        * tests/sets.at (Nullable): New.
+        * src/nullable.c (set_nullable): Instead of blindly looping over
+        `ritems', loop over the rules, and then over their rhs's.
+
+        Work around Autotest bugs.
+
+        * src/warshall.c (bitmatrix_print): Don't use `+--+' as table
+        frame, because Autotest understand lines starting with a `+' as
+        traces from the shell.  Then, they are not processed properly.
+        Admittedly an Autotest bug, but we don't have time to wait for
+        Autotest to catch up.
+        * tests/regression.at (Broken Closure): Adjust to the new table
+        frames.
+        Move to...
+        * tests/sets.at: here.
+
+2001-12-13  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): Use nrules instead of playing tricks
+        with BITS_PER_WORD.
+
+2001-12-13  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c (print_actions): Output the handling of `$' as the
+        traces do: shifting the token EOF.  Before EOF was treated as a
+        nonterminal.
+        * tests/regression.at: Adjust some tests.
+        * src/print_graph.c (print_core): Complete the set of items via
+        closure.  The next-to-final and final states are still unsatisfying,
+        but that's to be addressed elsewhere.
+        No longer output the rule numbers, but do output the state number.
+        A single loop for the shifts + gotos is enough, but picked a
+        distinct color for each.
+        (print_graph): Initialize and finalize closure.
+
+2001-12-13  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (readgram): Remove dead code, an strip useless
+        braces.
+        (get_type): Remove, unused.
+
+2001-12-12  Akim Demaille  <akim@epita.fr>
+
+        * src/complain.h, src/complain.c: Remove error_one_per_line, rely
+        on that of lib/error.c.
+
+2001-12-12  Akim Demaille  <akim@epita.fr>
+
+        Some hosts don't like `/' in includes.
+
+        * src/system.h: Include libgettext.h without qualifying the path.
+        * src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
+        $(top_srcdir).
+
+2001-12-11  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.c (output_parser): Remove useless muscle.
+
+2001-12-11  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Remove #line just before %%epilogue. It
+        is now handled in ...
+        * src/reader.c (read_additionnal_code): Add the output of a
+        #line for the epilogue.
+
+2001-12-10  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (copy_definition): Re-use CPP-outed code which
+        replace precedent remove.
+        * src/bison.simple: Remove #line before %%prologue because
+        %%input-line is wrong at this time.
+
+2001-12-10  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (symbols_output): Clean up.
+        * src/output.c (output_gram, output): Clean up.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (initialize_lookaheads): New.  Extracted from...
+        * src/LR0.c (set_state_table): here.
+        * src/lalr.c (lalr): Call it.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (shifts): Remove the `number' member: shifts are
+        attached to state, hence no longer need to be labelled with a
+        state number.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        Now that states have a complete set of members, the linked list of
+        shifts is useless: just fill directly the state's shifts member.
+
+        * src/state.h (shifts): Remove the `next' member.
+        * src/LR0.c (first_state, last_state): Remove.
+        Adjust the callers.
+        (augment_automaton): Don't look for the shifts that must be added
+        a shift on EOF: it is those of the state we looked for!  But now,
+        since shifts are attached, it is no longer needed to looking
+        merely by its id: its number.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (augment_automaton): Better variable locality.
+        Remove an impossible branch: if there is a state corresponding to
+        the start symbol being shifted, then there is shift for the start
+        symbol from the initial state.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
+        only when appropriate: when insert_start_shifting_state' is not
+        invoked.
+        * tests/regression.at (Rule Line Numbers): Adjust.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (augment_automaton): Now that all states have shifts,
+        merge the two cases addition shifts to the initial state.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (set_state_table): Move to...
+        * src/LR0.c: here.
+        * src/lalr.c (lalr): Don't call it...
+        * src/LR0.c (generate_states): do it.
+        * src/LR0.h (first_state): Remove, only the table is used.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.h (first_shift, first_reduction): Remove.
+        * src/lalr.c: Don't use first_shift: find shifts through the
+        states.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c: Attach shifts to states as soon as they are
+        computed.
+        * src/lalr.c (set_state_table): Instead of assigning shifts to
+        state, just assert that the mapping was properly done.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (insert_start_shift): Rename as...
+        (insert_start_shifting_state): this.
+        (insert_eof_shifting_state, insert_accepting_state): New.
+        (augment_automaton): Adjust.
+        Better locality of the variables.
+        When looking if the start_symbol is shifted from the initial
+        state, using `while (... symbol != start_symbol ...)' sounds
+        better than `while (... symbol < start_symbol ...)': If fail
+        to see how the order between symbols could be relevant!
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.h: Don't declare `spec_name_prefix' and
+        `spec_file_prefix', declared by src/files.h.
+        * src/files.c, src/files.h: Default for spec_name_prefix is "yy".
+        * src/muscle_tab.c (muscle_init): Default prefix to NULL.
+        * src/output.c (prepare): Adjust.
+        * src/reader.c (symbols_output): Likewise.
+        * src/vmsgetargs.c: Vaguely adjust, but who cares?
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/muscle_tab.c (muscle_init): NULL is a better default than
+        `"0"'.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (reader): Calling symbols_output once is enough.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        Now that states have a complete set of members, the linked list of
+        reductions is useless: just fill directly the state's reductions
+        member.
+
+        * src/state.h (struct reductions): Remove member `number' and
+        `next'.
+        * src/LR0.c (first_reduction, last_reduction): Remove.
+        (save_reductions): Don't link the new reductions, store them in
+        this_state.
+        * src/lalr.c (set_state_table): No need to attach reductions to
+        states, it's already done.
+        * src/output.c (output_actions): No longer free the shifts, then
+        the reductions, then the states: free all the states and their
+        members.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/options.c (OPTN, DRTV, BOTH): New.
+        (option_table): Use them.
+
+        * src/muscle_tab.c: Don't include xalloc.h and string.h: that's
+        the job of system.h.
+        * src/options.c: Don't include stdio.h and xalloc.h for the same
+        reasons.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output, prepare): Make sure the values of the
+        muscles `action' and `prologue' are 0-terminated.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        Clean up GCC warnings.
+
+        * src/reader.c (copy_action): `buf' is not used.
+        (parse_skel_decl): Be static.
+        * src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
+        * src/options.h (create_long_option_table): Have a real prototype.
+        * lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
+        (hash_delete_at): Return const void *.
+        Adjust casts to preserve the const.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Require 2.52g.
+        M4 is not needed, but AUTOM4TE is.
+        * m4/m4.m4: Remove.
+        * tests/Makefile.am: Adjust.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        One structure for states is enough, even though theoretically
+        there are LR(0) states and LALR(1) states.
+
+        * src/lalr.h (state_t): Remove.
+        (state_table): Be state_t **, not state_t *.
+        * src/state.h (core, CORE_ALLOC): Rename as...
+        (state_t, STATE_ALLOC): this.
+        Add the LALR(1) members: shifts, reductions, errs.
+        * src/LR0.c (state_table): Rename as...
+        (state_hash): this, to avoid name clashes with the global
+        `state_table'.
+        * src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
+        * src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
+
+2001-12-10  Akim Demaille  <akim@epita.fr>
+
+        Bison dumps core on bash.y.
+        Reported by Pascal Bart.
+
+        * src/warshall.c (bitmatrix_print): New.
+        (TC): Use it.
+        When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
+        j must be the outer loop.
+        * tests/regression.at (Broken Closure): New.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
+        its argument.
+        Reported by Peter Hamorsky.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (err_table): Remove.
+        (resolve_sr_conflict): Adjust.
+        * src/lalr.h (state_t.reduction_table, state_t.shift_table):
+        Rename as...
+        (state_t.reductions, state_t.shifts): this.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (reduce_grammar_tables): No longer disable the
+        removal of useless rules via CPP but via `if (0)', so that the
+        compiler still check the code is valid.
+        For instance, it should have noticed `rline' no longer exists: use
+        the `line' member of rule_t.
+        * src/gram.c (dummy, rline): Remove, unused.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (pack_vector): Use assert, not berror.
+        * src/main.c (berror): Remove, unused.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        New experimental feature: if --verbose --trace output all the
+        items of a state, not only its kernel.
+
+        * src/print.c (print_core): If `trace_flag', then invoke closure
+        before outputting the items of the state (print_core is no longer
+        a correct name them).
+        (print_results): Invoke new_closure/free_closure if needed.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
+        * src/closure.c, src/closure.h (itemsetsize): Rename as...
+        (nitemset): for consistency with the rest of the project.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (print_closure): Improve.
+        (closure): Use it for printing input and output.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
+        indexed by nonterminals.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
+        what it was!).
+        * src/warshall.h: Remove accidental duplication of the content.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (set_fderives): De-obfuscate.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (print_firsts, print_fderives): De-obfuscate.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (set_firsts): De-obfuscate.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (action_row): De-obfuscate
+        using the good o' techniques: arrays not pointers, variable
+        locality, BITISSET, RESETBIT etc.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        Pessimize the code to simplify it: from now on, all the states
+        have a valid SHIFTS, which NSHIFTS is possibly 0.
+
+        * src/LR0.c (shifts_new): Be global and move to..
+        * src/state.c, src/state.h: here.
+        * src/conflicts, src/lalr.c, src/output.c, src/print.c,
+        * src/print_graph: Adjust.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
+        * src/conflicts.c: Use it.
+        Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
+        incorrectly ``simplified''.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
+        using the good o' techniques: arrays not pointers, variable
+        locality, BITISSET, RESETBIT etc.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (SHIFT_SYMBOL): New.
+        * src/conflicts.c: Use it to deobfuscate.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
+        (print_reductions): De-obfuscate using the good o' techniques:
+        arrays not pointers, variable locality, BITISSET.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Arrays, not pointers.
+        Use BITISSET.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Improve variable locality.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Pessimize, but clarify.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Improve variable locality.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
+        * src/lalr.c: Use them.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (augment_automaton): Formatting changes.
+        Better variable locality.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (matrix_print): New.
+        (transpose): Use it.
+        Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (maxrhs): Move to...
+        * src/gram.c, src/gram.h (ritem_longest_rhs): here.
+        * src/lalr.c (build_relations): Adjust.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (transpose): Free the memory allocated to the
+        argument, as it is replaced by the results by the unique caller.
+        (build_relations): Merely invoke transpose: it handles the memory
+        deallocation.
+        Improve variable locality.
+        Avoid variables used as mere abbreviations.
+        (compute_lookaheads): Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (initialize_F): Improve variable locality.
+        Avoid variables used as mere abbreviations.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.c (print_derives): Display the ruleno.
+        * src/lalr.c (initialize_F, transpose): Better variable locality
+        to improve readability.
+        Avoid variables used as mere abbreviations.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (traverse): Use arrays instead of pointers.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/nullable.c (set_nullable): Use a for loop to de-obfuscate
+        the handling of squeue.
+        `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        Because useless nonterminals are now kept alive (instead of being
+        `destroyed'), we now sometimes examine them, and store information
+        related to them.  Hence we need to know their number, and adjust
+        memory allocations.
+
+        * src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
+        static.
+        * src/LR0.c (allocate_itemsets): The memory allocated to
+        `symbol_count' was used for two different purpose: once to count
+        the number of occurrences of each symbol, and later reassigned to
+        `shift_symbol', containing the symbol that can be shifted from a
+        given state.
+        Deobfuscate, i.e., allocate, use and free `symbol_count' here
+        only, and...
+        (new_itemsets): Allocate `shift_symbol' here.
+        (allocate_itemsets): symbol_count includes useless nonterminals.
+        Make room for them.
+        (free_storage): Use `free', not `XFREE', for pointers that cannot
+        be null.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/nullable.c (set_nullable): Deobfuscate the handling of
+        ritem.
+        `symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
+
+2001-12-05  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c, src/gram.h (ritem_print): New.
+        * src/gram.c (dummy): Remove, now there is actual code in gram.c.
+        (This useless function was defined only to work around VMS linkers
+        that can't handle compilation units with variables only).
+        * src/reduce.c (dump_grammar): Use it to trace the construction of
+        ritem.
+
+2001-12-04  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (union yyalloc): Change member names
+        to be the same as the stack names.
+        (yyparse): yyptr is now union yyalloc *, not char *.
+        (YYSTACK_RELOCATE): Likewise.  This avoids a GCC warning,
+        and may generate better code on some machines.
+        (yystpcpy): Use prototype if __STDC__ is defined, not just
+        if __cplusplus is defined.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * configure.in (WARNING_CFLAGS): Add -Werror when possible.
+        (CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
+        Gettext doesn't compile cleanly, and dies with -Werror.
+        * src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
+        Include WARNING_CFLAGS here.
+        * lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
+        before being defined.
+
+2001-11-27  Paul Eggert  <eggert@twinsun.com>
+
+        * lib/quotearg.h (quotearg_n, quotearg_n_style):
+        First arg is int, not unsigned.
+        * lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
+        (SIZE_MAX, UINT_MAX): New macros.
+        (quotearg_n_options): Abort if N is negative.
+        Avoid overflow check on hosts where size_t is 64 bits and int
+        is 32 bits, as overflow is impossible there.
+        Fix off-by-one typo that caused unnecessary reallocation.
+
+2001-11-29  Paul Eggert  <eggert@twinsun.com>
+
+        Name space cleanup in generated parser.
+
+        * doc/bison.texinfo (Bison Parser): Discuss system headers
+        and their effect on the user name space.
+
+        * src/bison.simple:
+        (YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
+        YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
+        i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
+
+        (YYSIZE_T): New macro.  Use it instead of size_t, to avoid infringing
+        on user names when possible.
+
+        (YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
+        Simplify test for whather <alloca.h> exists.
+
+        (<stdlib.h>): Include if we will use malloc, and if standard C or C++.
+
+        (<stdio.h>): Include if YYDEBUG.
+
+        (yymemcpy): Renamed from __yy_memcpy.  Do not define unless
+        ! defined (yyoverflow) && ! defined (yymemcpy).
+
+        (yymemcpy, yyparse): Rename local variables as needed so that
+        they all begin with 'yy'.
+
+        (yystrlen, yystpcpy): New functions.
+
+        (YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
+        All uses changed.
+
+        (yyparse): size_t -> YYSIZE_T.  Use yystrlen and yystpcpy
+        instead of relying on string.h functions.  Use YYSTACK_ALLOC
+        and YYSTACK_FREE instead of malloc and free.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
+        before their first uses.
+        (YYBISON, YYPURE): Move to the top of the output.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * tests/reduce.at (Useless Nonterminals): Fix.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
+        if body instead of `;' to pacify GCC's warnings.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        Instead of mapping the LHS of unused rules to -1, keep the LHS
+        valid, but flag the rules as invalid.
+
+        * src/gram.h (rule_t): `useful' is a new member.
+        * src/print.c (print_grammar): Adjust.
+        * src/derives.c (set_derives): Likewise.
+        * src/reader.c (packgram, reduce_output): Likewise.
+        * src/reduce.c (reduce_grammar_tables): Likewise.
+        * tests/reduce.at (Underivable Rules, Useless Rules): New.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (reduce_output): Formatting changes.
+        * src/print.c (print_results, print_grammar): Likewise.
+        * tests/regression.at (Rule Line Numbers)
+        (Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (nonterminals_reduce): Instead of throwing away
+        useless nonterminals, move them at the end of the symbol arrays.
+        (reduce_output): Adjust.
+        * tests/reduce.at (Useless Nonterminals): Adjust.
+
+2001-11-30  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c: Various comment/formatting changes.
+        (nonterminals_reduce): New, extracted from...
+        (reduce_grammar_tables): here.
+        (reduce_grammar): Call nonterminals_reduce.
+
+2001-11-29  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYSTACK_REALLOC): Remove.
+        (YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
+        (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
+        New macros.
+        (union yyalloc): New type.
+        (__yy_memcpy): Last arg is size_t, not unsigned int, to remove
+        an arbitrary restriction on hosts where size_t is wider than int.
+
+        (yyparse): Don't dump core if alloca or malloc fails; instead, report
+        a parser stack overflow.  Allocate just one block of memory for all
+        three stacks, instead of allocating three blocks; this typically is
+        faster and reduces fragmentation.
+
+        Do not limit the number of items in the stack to a value that fits
+        in 'int', as this is an arbitrary limit on hosts with 64-bit
+        size_t and 32-bit int.
+
+2001-11-29  Marc Autret  <autret_m@epita.fr>
+
+        * tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
+        of defining YYERROR_VERBOSE.
+        [AT_DATA]: $4 is now out of C declarations in the prologue.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_dquoted_param): New.
+        (parse_skel_decl): Use it.
+        * src/lex.h: Add its prototype.
+        * src/lex.c (literalchar): Become not static.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.h: And put its extern declaration here.
+        * src/output.c (error_verbose): Define here.
+        (prepare): Echo name modification.
+        * src/getargs.h: Clean its extern declaration.
+        * src/getargs.c (error_verbose_flag): Remove.
+        (getargs): Remove case 'e'.
+        * src/options.c (option_table): 'error-verbose' is now seen as simple
+        percent option.
+        Include output.h.
+
+        * src/reader.c (read_declarations): Remove case tok_include.
+        (parse_include_decl): Remove.
+        * src/lex.h (token_t): Remove tok_include.
+        * src/options.c (option_table): 'include' is now a simple command line
+        option.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Adjust muscle names.
+        * src/muscle_tab.c (muscle_init): Also rename the muscles.
+        * src/output.c (prepare): s/_/-/ for the muscles names.
+        (output_parser): When scanning for a muscle, allow '-' instead of '_'.
+
+2001-11-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Fix debug.
+        [YYERROR_VERBOSE]: Re-integrate as an internal macro.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (shifts_new): New.
+        (save_shifts, insert_start_shift, augment_automaton): Use it.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): `b' and `ruleno' denote the same value:
+        keep ruleno only.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): Instead of looping over word in array
+        then bits in words, loop over bits in array.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): No longer optimize the special case
+        where all the bits of `ruleset[r]' are set to 0, to make the code
+        clearer.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): `r' and `c' are new variables, used to
+        de-obfuscate accesses to RULESET and CORE.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (reduce_print): Use ngettext.
+        (dump_grammar): Improve the trace accuracy.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (dump_grammar): Don't translate trace messages.
+
+2001-11-28  Akim Demaille  <akim@epita.fr>
+
+        * tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
+        * src/reduce.c (reduce_grammar_tables): Do not free useless tags,
+        as all tags are free'ed afterwards.
+        From Enrico Scholz.
+
+2001-11-27  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
+        use alloca when we didn't want to, and vice versa.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
+        initialization.
+        * src/output.c (prepare): Remove its update.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+        * tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
+        Use %error-verbose.
+
+2001-11-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Remove YYERROR_VERBOSE using.
+        Use %%error_verbose.
+        (yyparse): Likewise.
+        * src/output.c (prepare): Give its final value.
+        * src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
+        * src/getargs.h: Add its extern declaration.
+        * src/getargs.c (error_verbose_flag): New int.
+        (getargs): Update to catch new case.
+        * src/options.c (option_table): 'error-verbose' is a new option.
+        (shortopts): Update.
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Use intl/libgettext.h.
+        * src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+        * tests/torture.at (Exploding the Stack Size with Malloc):
+        s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
+
+2001-11-27  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c: Include error.h.
+        Reported by Hans Aberg.
+
+2001-11-26  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_include_decl): New, not yet implemented.
+        (read_declarations): Add case tok_include.
+        * src/getargs.h (include): Add its extern definition.
+        * src/getargs.c (include): New const char *.
+        (getargs): Add case '-I'.
+        * src/options.c (option_table): Add include as command line and
+        percent option.
+        * src/lex.h (token_t): Add tok_include.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (readgram): Make sure rules for mid-rule actions
+        have a lineno equal to that of their host rule.
+        Reported by Hans Aberg.
+        * tests/regression.at (Rule Line Numbers): New.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (allocate_itemsets): kernel_size contains ints, not
+        size_ts.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * src/complain.c, src/complain.h (error): Remove, provided by
+        lib/error.[ch].
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (read_declarations): Don't abort on tok_illegal,
+        issue an error message.
+        * tests/regression.at (Invalid %directive): New.
+        Reported by Hans Aberg.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
+        * lib/Makefile.am (libbison_a_SOURCES): Adjust.
+
+2001-11-26  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflicts_print): Don't complain at all when
+        there are no reduce/reduce conflicts, and as many shift/reduce
+        conflicts as expected.
+        * tests/regression.at (%expect right): Adjust.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+        * lib/alloca.c: Update, from fileutils.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+        * lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Include alloca.h.
+        * src/main.c (main) [C_ALLOCA]: Call alloca (0).
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+        * src/print_graph.c (print_actions): Remove `rule', unused.
+        * src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
+        pacify GCC's signed < unsigned warnings.
+        * src/closure.c (itemsetsize): Likewise.
+        * src/reader.c (symbol_list_new): Static.
+
+2001-11-23  Akim Demaille  <akim@epita.fr>
+
+        Attaching lineno to buckets is stupid, since only one copy of each
+        symbol is kept, only the line of the first occurrence is kept too.
+
+        * src/symtab.h, src/symtab.c (bucket): Remove the line member.
+        * src/reader.c (rline_allocated): Remove, unused.
+        (symbol_list): Have a `line' member.
+        (symbol_list_new): New.
+        (readgram): Use it.
+        * src/print.c (print_grammar): Output the rule line numbers.
+        * tests/regression.at (Solved SR Conflicts)
+        (Unresolved SR Conflicts): Adjust.
+        Reported by Hans Aberg.
+
+2001-11-22  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
+
+2001-11-22  Marc Autret  <autret_m@epita.fr>
+
+        * src/muscle_tab.c (muscle_init): Remove initialization of
+        skeleton muscle.
+        * src/output.c (output_master_parser): Do it here.
+
+2001-11-20  Akim Demaille  <akim@epita.fr>
+
+        * po/sv.po: New.
+        * configure.in (ALL_LINGUAS): Adjust.
+        * po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
+        longer contains strings to translate.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflicts_print): Add a missing \n.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/nullable.c (nullable_print): New.
+        (set_nullable): Call it when tracing.
+        Better locality of variables.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c (print_actions): Better locality of variables.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.c (print_derives): Fix and enrich.
+        * src/closure.c (print_fderives): Likewise.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (itemsetend): Remove, replaced with...
+        (itemsetsize): new.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (kernel_end): Remove, replaced with...
+        (kernel_size): new.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (set_conflicts): Use arrays instead of pointers
+        to clarify.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c (closure): Use arrays instead of pointers to clarify.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c, src/derives.c, src/nullable.c: Adjust various
+        trace messages.
+        * src/LR0.c: Likewise.
+        (allocate_itemsets): Use arrays instead of pointers to clarify.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (statistics_flag): Replace with...
+        (trace_flag): New.
+        (longopts): Accept --trace instead of --statistics.
+        * src/getargs.h, src/options.c: Adjust.
+        * src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
+        * src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
+        pointers to clarify the code.
+        (save_reductions, save_shifts): Factor common parts of alternatives.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_state, get_state): Complete TRACE code.
+        * src/closure.c: Include `reader.h' to get `tags', needed by the
+        trace code.
+        Rename the conditional DEBUG as TRACE.
+        Output consistently TRACEs to stderr, not stdout.
+        * src/derives.c: Likewise.
+        * src/reduce.c: (inaccessable_symbols): Using if is better style
+        than goto.
+        Use `#if TRACE' instead of `#if 0' for tracing code.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h (LIST_FREE, shortcpy): New.
+        * src/LR0.c: Use them.
+        * src/output.c (free_itemsets, free_reductions, free_shifts):
+        Remove, replaced by LIST_FREE.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
+        (REDUCTIONS_ALLOC):  New.
+        * src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
+        allocation.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.c (new_state): Complete trace code.
+        * src/nullable.c (set_nullable): Don't translate traces.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/print_graph.c (print_core): Better locality of variables.
+        * src/print.c (print_core): Likewise.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/vcg.c: You do the output, so you are responsible of the
+        handling of VCG syntax, in particular: use quotearg.
+        * src/print_graph.c: Don't.
+        (print_actions): Don't output the actions as part of the nodes,
+        since that's the job of the edges.
+        (print_state): Don't output by hand: fill the node description,
+        and ask for its output.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (yyparse): When verbosely reporting an error,
+        no longer put additional quotes around token names.
+        * tests/calc.at: Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
+        * src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
+        * src/output.c: Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
+        (rule_t): this.
+        * src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (rule_t): New.
+        (rule_table): New.
+        (rrhs, rlhs): Remove, part of state_t.
+        * src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
+        * src/lalr.c, src/nullable.c, src/output.c, src/print.c,
+        * src/reader.c, src/reduce.c: Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (symbols_output): New, extracted from...
+        (packsymbols): Here.
+        (reader): Call it.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
+        (maxrhs): this new function.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (F): New macro to access the variable F.
+        Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (LA): New macro to access the variable LA.
+        * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+        * src/lalr.c: Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.c (initialize_LA): Only initialize LA.  Let...
+        (set_state_table): handle the `lookaheads' members.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (lookaheads): Removed array, whose contents is now
+        a member of...
+        (state_t): this structure.
+        * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+        Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (consistent): Removed array, whose contents is now
+        a member of...
+        (state_t): this structure.
+        * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+        Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (reduction_table, shift_table): Removed arrays, whose
+        contents are now members of...
+        (state_t): this structure.
+        * src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
+        Adjust.
+
+2001-11-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h (state_t): New.
+        (state_table): Be a state_t * instead of a core **.
+        (accessing_symbol): Remove, part of state_t.
+        * src/lalr.c: Adjust.
+        (set_accessing_symbol): Merge into...
+        (set_state_table): this.
+        * src/print_graph.c, src/conflicts.c: Adjust.
+
+2001-11-14  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at, tests/output.at, tests/regression.at,
+        * tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
+        now the tests are run in private dirs, therefore AC_CLEANUP and
+        family can be simplified to 0-ary.
+        * tests/atlocal.in: Now that we run `elsewhere' than in tests/,
+        use abs. path to find config.h.
+        * tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
+        stderr, there can be way too much random noise.
+        Instead pass -Werror to GCC and rely on the exit status.
+        Reported by Wolfram Wagner.
+
+2001-11-14  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
+        defined only if yyoverflow is defined, to avoid `warning: unused
+        variable `yyvs1''.
+        Reported by The Test Suite.
+
+2001-11-14  Akim Demaille  <akim@epita.fr>
+
+        * src/print.c: Include reduce.h.
+        Reported by Hans Aberg.
+
+2001-11-14  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
+        Revert a previous patch:  these are really const.
+        * src/conflicts.c (conflict_report): Additional useless pair of
+        braces to pacify GCC's warnings for `if () if () {} else {}'.
+        * src/lex.c (parse_percent_token): Replace equal_offset with
+        arg_offset.
+        arg is const.
+        Be sure to strdup `arg' when used, since there is no reason for
+        token_buffer not to change.
+
+2001-11-14  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
+        definition.
+        * src/main.c (main): Use them.
+        Suggested by Hans Aberg.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h (ngettext): Now that we use ngettext, be sure to
+        provide a default definition when NLS are not used.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Use `$' as shell prompt, not `%'.
+        Use @kbd to denote user input.
+        (Language and Grammar): ANSIfy the example.
+        Adjust its layout for info/notinfo.
+        (Location Tracking Calc): Output error messages to stderr.
+        Output locations in a more GNUtically correct way.
+        Fix a couple of Englishos.
+        Adjust @group/@end group pairs.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        %expect was not functioning at all.
+
+        * src/conflicts.c (expected_conflicts): Set to -1.
+        (conflict_report): Use ngettext.
+        (conflicts_print): Check %expect and make its violation an error.
+        * doc/bison.texinfo (Expect Decl): Adjust.
+        * configure.in (AM_GNU_GETTEXT): Ask for ngettext.
+        * tests/regression.at (%expect not enough, %expect right)
+        (%expect too much): New.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Conflicts): Rename as...
+        (Unresolved SR Conflicts): this.
+        (Solved SR Conflicts): New.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.c (print_results): Rename as...
+        (reduce_output): This.
+        Output to OUT, passed as argument, instead of output_obstack.
+        (dump_grammar): Likewise.
+        (reduce_free): New.
+        Also free V1.
+        (reduce_grammar): No longer call reduce_output, since...
+        * src/print.c (print_results): do it.
+        * src/main.c (main): Call reduce_free;
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (print_reductions): Accept OUT as argument.
+        Output to it, not to output_obstack.
+        * src/print.c (print_actions): Adjust.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
+        the result instead of using...
+        (src_total, rrc_total, src_count, rrc_count): Remove.
+        (any_conflicts): Remove.
+        (print_conflicts): Split into...
+        (conflicts_print, conflicts_output): New.
+        * src/conflicts.h: Adjust.
+        * src/main.c (main): Invoke both conflicts_output and conflicts_print.
+        * src/print.c (print_grammar): Issue `\n' between two rules.
+        * tests/regression.at (Conflicts): New.
+        Reported by Tom Lane.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Invalid input): Remove, duplicate with
+        ``Invalid input: 1''.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * tests/torture.at (AT_DATA_STACK_TORTURE)
+        (Exploding the Stack Size with Alloca)
+        (Exploding the Stack Size with Malloc): New.
+
+2001-11-12  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple (YYSTACK_REALLOC): New.
+        (yyparse) [!yyoverflow]: Use it and free the old stack.
+        Reported by Per Allansson.
+
+2001-11-12  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/bison.simple: Define type yystype instead of YYSTYPE, and
+        define CPP macro, which substitute YYSTYPE by yystype.
+        * src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
+        with yyltype/YYLTYPE.  This allows inclusion of the generated
+        header within the parser if the compiler, such as GGC, accepts
+        multiple equivalent #defines.
+        From Akim.
+
+2001-11-05  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (symbols_output): New, extracted from...
+        (packsymbols): here.
+        (reader): Adjust.
+
+2001-11-05  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c (parse_percent_token): s/quotearg/quote/.
+
+2001-11-05  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
+        pattern.
+
+2001-11-05  Akim Demaille  <akim@epita.fr>
+
+        * src/options.h (struct option_table_struct): set_flags is void*.
+        * src/options.c (longopts): Support `--output' and `%output'.
+        (usage): Adjust.
+        * src/lex.h (tok_setopt): Remove, replaced with...
+        (tok_intopt, tok_stropt): these new guys.
+        * src/lex.c (getopt.h): Not needed.
+        (token_buffer, unlexed_token_buffer): Not const.
+        (percent_table): Promote `-' over `_' in directive names.
+        Active `%name-prefix', `file-prefix', and `output'.
+        (parse_percent_token): Accept possible arguments to directives.
+        Promote `-' over `_' in directive names.
+
+2001-11-04  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Decl Summary): Split the list into
+        `directives for grammars' and `directives for bison'.
+        Sort'em.
+        Add description of `%name-prefix', `file-prefix', and `output'.
+        Promote `-' over `_' in directive names.
+        (Bison Options): s/%locactions/%locations/.  Nice Freudian slip.
+        Simplify the description of `--name-prefix'.
+        Promote `-' over `_' in directive names.
+        Promote `--output' over `--output-file'.
+        Fix the description of `--defines'.
+        * tests/output.at: Exercise %file-prefix and %output.
+
+2001-11-02  Akim Demaille  <akim@epita.fr>
+
+        * doc/refcard.tex: Update.
+
+2001-11-02  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.h (SUNDEF): New.
+        * src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
+        stand for `uninitialized', instead of 0.
+        * src/reader.c (packsymbols, parse_thong_decl): Adjust.
+        * src/lex.c (lex): Adjust.
+
+        * tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
+        Number it 0.
+        Let yylex return it instead of a plain 0.
+        Reported by Dick Streefland.
+
+2001-11-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Mixing %token styles): New test.
+
+2001-11-02  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_thong_decl): Formatting changes.
+        (token_translations_init): New, extracted from...
+        (packsymbols): Here.
+        Adjust.
+
+2001-11-01  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (AT_TEST_CPP_GUARD_H): New.
+        Check that `9foo.y' produces correct cpp guards.
+        * src/files.c (compute_header_macro): Prepend `BISON_' to CPP
+        guards.
+        Reported by Wwp.
+
+2001-11-01  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Invalid input: 2): New.
+        * src/lex.c (unlexed_token_buffer): New.
+        (lex, unlex): Adjust: when unlexing, be sure to save token_buffer
+        too.
+        Reported by Wwp.
+
+2001-11-01  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at: Catch up with 1.30.
+        * configure.in: Bump to 1.49a.
+        Adjust to newer Autotest.
+
+2001-10-19  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/conflicts.c: Move global variables rrc_total and src_total ...
+        (print_conflicts): here.
+        * src/output.c (output): Free global variable user_toknums.
+        * src/lex.c (token_obstack): Become static.
+
+2001-10-18  Akim Demaille  <akim@epita.fr>
+
+        * tests/atlocal.in (GCC): Add.
+        * tests/calc.at: s/m4_match/m4_bmatch/.
+        s/m4_patsubst/m4_bpatsubst/.
+        (AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
+        * configure.in: AC_SUBST(GCC).
+
+2001-10-14  Marc Autret  <autret_m@epita.fr>
+
+        * src/options.c (create_long_option_table): Fix.
+
+2001-10-10  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
+
+2001-10-04  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_union_decl): Push the caracters in
+        union_obstack, not attrs_obstack.
+
+2001-10-04  Akim Demaille  <akim@epita.fr>
+
+        Merge in the branch 1.29.
+
+        * src/reader.c (packsymbols): Use a temporary obstack for
+        `%%tokendef', since output_stack is already used elsewhere.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        Bump 1.29d.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        Version 1.29c.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Invalid CPP headers): New.
+        From Alexander Belopolsky.
+        * src/files.c (compute_header_macro): Map non alnum chars to `_'.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.at (Invalid input): New.
+        * src/lex.c (lex): Be sure to set `token_buffer' in any case.
+        Reported by Shura.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at: Now that --debug works, the tests must be adjusted.
+
+        2001-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_parser): Assert `skeleton'.
+        * src/files.c (skeleton_find): Look harder for skeletons on DOSish
+        systems.
+        From Shura.
+
+        2001-10-01  Marc Autret  <autret_m@epita.fr>
+
+        * src/lex.h: Echo modifications.
+        * src/lex.c (unlex): Parameter is now token_t.
+        From Hans Aberg.
+
+        2001-10-01  Marc Autret  <autret_m@epita.fr>
+
+        * src/main.c: Include lex.h.
+        From Hans Aberg.
+
+        2001-09-29  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (longopts): `--debug' is `-t', not `-d'.
+
+        2001-09-28  Akim Demaille  <akim@epita.fr>
+
+        * tests/testsuite.at: Update to newer Autotest.
+        * tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
+
+        2001-09-27  Akim Demaille  <akim@epita.fr>
+
+        Position independent wrapper.
+
+        * tests/bison: Remove.
+        * tests/bison.in: New.
+        * configure.in: Adjust.
+
+        2001-09-27  Paul Eggert  <eggert@twinsun.com>
+
+        Port quotearg fixes from tar 1.13.24.
+
+        * lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
+        tm to be declared.
+        (HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
+        (mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
+
+        * m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
+        * m4/mbrtowc.m4: New file.
+        * m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
+        Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
+
+        2001-09-27  Akim Demaille  <akim@epita.fr>
+
+        Bump to 1.29c.
+
+        2001-09-27  Akim Demaille  <akim@epita.fr>
+
+        Version 1.29b.
+
+        2001-09-25  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Include `xalloc.h'.
+        Remove it from the C files.
+        * src/files.c (output_files): Free the obstacks.
+        * src/lex.c (init_lex): Rename as...
+        (lex_init): this.
+        (lex_free): New.
+        * src/main.c (main): Use it.
+
+        2001-09-24  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.c (open_edge, close_edge, open_node, close_node): Change
+        to output informations in fout (FILE*).
+        (open_graph, close_graph): Likewise.
+        (output_graph, output_edge, output_node): Likewise.
+        * src/vcg.h: Update function prototypes.
+        * src/print_graph.c (print_graph): Open output graph file.
+        (print_actions): Adjust.
+        * src/files.h: Remove extern declaration.
+        * src/files.c: Remove graph_obstack declaration.
+        (open_files): Remove graph_obstack initialization.
+        (output_files): Remove graph_obstack saving.
+
+        2001-09-24  Marc Autret  <autret_m@epita.fr>
+
+        * src/files.c (compute_output_file_names): Fix.
+
+        2001-09-24  Marc Autret  <autret_m@epita.fr>,
+                    Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (reader): Remove call to free_symtab ().
+        * src/main.c (main): Call it here.
+        Include symtab.h.
+        * src/conflicts.c (initialize_conflicts): Rename as...
+        (solve_conflicts): this.
+        * src/print.c (print_core, print_actions, print_state)
+        (print_grammar): Dump to a file instead a `output_obstack'.
+        (print_results): Dump `output_obstack', and then proceed with the
+        FILE *.
+        * src/files.c (compute_output_file_names, close_files): New.
+        (output_files): Adjust.
+        * src/main.c (main): Adjust.
+
+        2001-09-23  Marc Autret  <autret_m@epita.fr>
+
+        * src/files.c (compute_header_macro): Computes header macro name
+        from spec_defines_file when given.
+
+        2001-09-23  Marc Autret  <autret_m@epita.fr>
+
+        * src/files.c (output_files): Add default extensions.
+
+        2001-09-22  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (finalize_conflicts): Rename as...
+        (free_conflicts): this.
+
+        2001-09-22  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.c (gram_free): Rename back as...
+        (dummy): this.
+        (output_token_translations): Free `token_translations'.
+        * src/symtab.c (free_symtab): Free the tag field.
+
+        2001-09-22  Akim Demaille  <akim@epita.fr>
+
+        Remove `translations' as it is always set to true.
+
+        * src/gram.h: Adjust.
+        * src/reader.c (packsymbols, parse_token_decl): Adjust
+        * src/print.c (print_grammar): Adjust.
+        * src/output.c (output_token_translations): Adjust.
+        * src/lex.c (lex): Adjust.
+        * src/gram.c: Be sure the set pointers to NULL.
+        (dummy): Rename as...
+        (gram_free): this.
+
+        2001-09-22  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Invoke AM_LIB_DMALLOC.
+        * src/system.h: Use dmalloc.
+        * src/LR0.c: Be sure to have pointers initialized to NULL.
+        (allocate_itemsets): Allocate kernel_items only if needed.
+
+        2001-09-22  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Bump to 1.29b.
+        * tests/Makefile.am (DISTCLEANFILES): Add package.m4.
+        * tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
+        need xmalloc.c in calc.y.
+        From Pascal Bart.
+
+        2001-09-21  Akim Demaille  <akim@epita.fr>
+
+        Version 1.29a.
+        * Makefile.maint, config/config.guess, config/config.sub,
+        * config/missing: Update from masters.
+        * tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
+        upon package.m4.
+        * configure.in (ALL_LINGUAS): Add `tr'.
+
+        2001-09-21  Akim Demaille  <akim@epita.fr>
+
+        * tests/Makefile.am (package.m4): Move to...
+        ($(srcdir)/$(TESTSUITE)): here.
+
+        2001-09-20  Akim Demaille  <akim@epita.fr>
+
+        * src/complain.c: No longer try to be standalone: use system.h.
+        Don't assume __STDC__ is defined to 1. Just test if it is defined.
+        * src/complain.h: Likewise.
+        * src/reduce.c (useless_nonterminals, inaccessable_symbols):
+        Remove the unused variable `n'.
+        From Albert Chin-A-Young.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.1: Update.
+        * doc/bison.texinfo (Bison Options): Update --defines and --graph
+        descriptions.
+        (Option Cross Key): Update.
+        Add --graph.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * tests/regression.at: New test (comment in %union).
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
+        do that.
+        Reported by Keith Browne.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * tests/output.at: Add tests for --defines and --graph.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * tests/output.at: Removes tests of %{header,src}_extension features.
+
+        2001-09-18  Akim Demaille  <akim@epita.fr>
+
+        * tests/Makefile.am (package.m4): New.
+        * tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
+        (_AT_CHECK_CALC_ERROR): Likewise.
+        Factor the `, ' part of verbose error messages.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        * src/getargs.c (longopts): Declare --defines and --graph as options
+        with optional arguments.
+        * src/files.h: Add extern declarations.
+        * src/files.c (spec_graph_file, spec_defines_file): New.
+        (output_files): Update.
+        Remove CPP-outed code.
+
+        2001-09-18  Marc Autret  <autret_m@epita.fr>
+
+        Turn off %{source,header}_extension feature.
+
+        * src/files.c (compute_exts_from_gf): Update.
+        (compute_exts_from_src): Update.
+        (output_files): CPP-out useless code.
+        * src/files.h: Remove {header,source}_extension extern declarations.
+        * src/reader.c (parse_dquoted_param): CPP-out.
+        (parse_header_extension_decl): Remove.
+        (parse_source_extension_decl): Remove.
+        (read_declarations): Remove cases tok_{hdrext,srcext}.
+        * src/lex.c (percent_table): Remove {header,source}_extension entries.
+        * src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
+
+        2001-09-10  Akim Demaille  <akim@epita.fr>
+
+        * tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
+        (AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
+        (AT_CHECK_OUTPUT): this.
+        Merely check ls' exit status, its output is useless.
+
+        2001-09-10  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.at: Use m4_match.
+        (_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
+
+        2001-09-10  Marc Autret  <autret_m@epita.fr>,
+                    Akim Demaille  <akim@epita.fr>
+
+        * src/vcg.h (graph_s): color, textcolor, bordercolor are now
+        enum color_e.
+        * src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
+        to `normal'.
+        * src/reader.c (parse_token_decl): Initialize token with tok_eof.
+        * src/lex.h: Adjust prototype.
+        (token_t): Add `tok_undef'.
+        * src/lex.c (struct percent_table_struct): Retval is now a token_t.
+        (parse_percent_token): Now returns token_t.
+        Add default statement in switch.
+        (lex): Separate `c' as an input variable, from the token_t result
+        part.
+        (unlexed): Is a token_t.
+
+        2001-09-10  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Bump to 1.29a.
+
+        2001-09-07  Akim Demaille  <akim@epita.fr>
+
+        Version 1.29.
+
+        2001-08-30  Akim Demaille  <akim@epita.fr>
+
+        * tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
+        * m4/atconfig.m4: Remove.
+        * tests/testsuite.at, tests/atlocal.in, tests/output.at,
+        * tests/bison: New.
+        * tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
+        m4_if, m4_patsubst, and m4_regexp.
+        * tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
+        `input' file instead of echo.
+
+        2001-08-29  Akim Demaille  <akim@epita.fr>
+
+        Bump to 1.28e.
+
+        2001-08-29  Akim Demaille  <akim@epita.fr>
+
+        Version 1.28d.
+
+        2001-08-29  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (yyparse): Don't take the address of an
+        item before the start of an array, as that doesn't conform to
+        the C Standard.
+
+        2001-08-29  Robert Anisko  <anisko_r@epita.fr>
+
+        * doc/bison.texinfo (Location Tracking Calc): New node.
+
+        2001-08-29  Paul Eggert  <eggert@twinsun.com>
+
+        * src/output.c (output): Do not define const, as this now
+        causes more problems than it cures.
+
+        2001-08-29  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Modernize `@node' and `@top' use: just name
+        the nodes.
+        Be sure to tag the `detailmenu'.
+
+        2001-08-29  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint (do-po-update): Wget refuses to overwrite files:
+        download in a tmp dir.
+
+        2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+        * config/depcomp: New file.
+
+        2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.1 (mandoc): Adjust.
+        From Juan Manuel Guerrero.
+
+        2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/print_graph.c (print_state): Fix.
+
+        2001-08-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.h (classname_s, infoname_s, node_s): Constify the
+        char * members.
+        Echo modifications to the functions prototypes.
+        * src/vcg.c (add_classname, add_infoname): Adjust arguments.
+
+        2001-08-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.c: Include `xalloc.h'.
+        (add_colorentry): New.
+        (add_classname): New.
+        (add_infoname): New.
+        * src/vcg.h: Add new prototypes.
+
+        2001-08-27  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Sync. again with CVS Autoconf.
+
+        2001-08-27  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Formatting changes.
+        (po-update, cvs-update, update): New targets.
+        (AMTAR): Remove.
+
+        2001-08-27  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
+        * Makefile.maint: Sync. with CVS Autoconf.
+
+        2001-08-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.h (struct infoname_s): New.
+        (struct colorentry_s): New.
+        (graph_s): New fields {vertical,horizontal}_order in structure.
+        Add `infoname' field.
+        Add `colorentry' field;
+        * src/vcg_defaults.h (G_VERTICAL_ORDER): New.
+        (G_HORIZONTAL_ORDER): New.
+        (G_INFONAME): New.
+        (G_COLORENTRY): New.
+        * src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
+        Add output of `infoname'.
+        Add output of `colorentry'.
+
+        2001-08-27  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
+        This one shadowed a global parameter.
+
+        2001-08-24  Marc Autret  <autret_m@epita.fr>
+
+        * src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
+        instead of `unsigned'.
+        (print_state): Do not call obstack_object_size () in obstack_grow ()
+        to avoid macro variables shadowing.
+
+        2001-08-23  Marc Autret  <autret_m@epita.fr>
+
+        * src/lex.c (percent_table): Typo: s/naem/name/.
+        Add graph option.
+        Normalize new options declarations.
+
+        2001-08-20  Pascal Bart  <pascal.bart@epita.fr>
+
+        * tests/suite.at: Exercise %header_extension and %source_extension.
+
+        2001-08-16  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_dquoted_param): New.
+        (parse_header_extension_decl): Use it.
+        (parse_source_extension_decl): Likewise.
+
+        2001-08-16  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
+        (get_xxxx_str): Use assert () instead of complain ().
+        Remove return invokations in default cases.
+        (get_decision_str): Modify default behaviour. Remove second argument.
+        Echo modifications on calls.
+        (output_graph): Fix.
+
+        2001-08-16  Marc Autret  <autret_m@epita.fr>
+
+        * src/getargs.c (usage): Update with ``-g, --graph''.
+
+        2001-08-16  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
+        (Option Cross Key): Likewise.
+        * doc/bison.1: Update.
+
+2001-09-25  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (output_master_parser): Don't finish action_obstack.
+        (output_parser): Don't care about the muscle action, here.
+        (prepare): Copy the action_obstack in the action muscle.
+        (output): Free action_obstack.
+
+2001-09-23  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/reader.c (parse_union_decl): Add new obstack union_obstack.  Which
+        will contain `%union' declaration.
+        (parse_union_decl): Delete #line directive output.
+        (parse_union_decl): Substitute /attrs_obstack/union_obstack for all
+        informations about %union.
+        (parse_union_decl): Copy the union_obstack in the muscle stype.
+        * src/bison.simple: Add new #line directive.
+        Add typdef %%stype YYSTYPE.
+
+2001-09-23  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/bison.simple: Add new `#line' directive.
+
+2001-09-22  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/bison.simple: New `#line' directive.
+        * src/output.c (output_parser): Support new dynamic muscle input_line.
+
+2001-09-22  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.c (output_master_parser): New.
+        (output_parser): Be more re-entrant.
+
+2001-09-21  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (copy_definition, parse_union_decl): Update and use
+        `linef' muscle.
+        (copy_action): Likewise.
+        Use obstack_1grow ().
+        * src/muscle_tab.c (muscle_init): Add muscle `linef'.
+
+2001-09-21  Marc Autret  <autret_m@epita.fr>
+
+        * src/options.c (option_table): Adjust.
+        * src/lex.c (parse_percent_token): Fix.
+
+2001-09-20  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/options.c (symtab.h): Include it, need by lex.h.
+
+2001-09-20  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/lex.c (parse_percent_token): Change type of variable `tx', which
+        is now an option_table_struct*.
+        (option_strcmp): New function option_strcmp.
+        (parse_percent_token): Call option_strcmp.
+        * src/getargs.c (xalloc.h, options.h): Include it.
+        (getargs): Call create_long_option_table.
+        (getargs): Free longopts at the end of the function.
+        (shortopts): Move in options.c.
+        * src/options.c (create_long_option_table): New function.  Convert
+        information from option_table to option structure.
+        * src/reader.c (options.h): Include it.
+
+        * src/Makefile.am: Adjust.
+        * src/options.c (option_table): Create from longopts and percent_table.
+        * src/getargs.c (longopts): Delete.
+        * src/lex.c (struct percent_table_struct): Delete.
+        (percent_table): Delete.
+        (options.h): Include it.
+        * src/options.c: Create.
+        * src/options.h: Create.
+        Declare enum opt_access_e.
+        Define struct option_table_struct.
+
+2001-09-20  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.texinfo: Adjust terminologies about prologue and epilogue
+        sections of Bison.
+
+2001-09-19  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/bison.simple: s/%%filename/%%skeleton.
+        * src/muscle_tab.c (getargs.h): Include it.
+        (muscle_init): Insert new muscle skeleton.
+
+2001-09-18  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (output_parser): Delete unused variable actions_dumped.
+
+2001-09-07  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (output): Delete call to reader_output_yylsp.
+        * src/reader.c (reader): Likewise.
+        * src/reader.h: Delete declaration of reader_output_yylsp.
+
+2001-09-02  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c: Include muscle_tab.h.
+        (parse_union_decl): Update.
+        (parse_macro_decl): Rename parse_muscle_decl.
+        Update to use renamed functions and variable.
+        (read_declarations, copy_action, read_additionnal_code, : Updated
+        with correct variables and functions names.
+        (packsymbols, reader): Likewise.
+
+        * src/reader.h (muscle_obstack): Extern declaration update.
+
+        * src/output.c: Include muscle_tab.h
+        In all functions using macro_insert, change by using muscle_insert ().
+        (macro_obstack): Rename muscle_obstack.
+        Echo modifications in the whole file.
+        (MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
+        (MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
+        (MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
+
+        * src/muscle_tab.h: Update double inclusion macros.
+        (macro_entry_s): Rename muscle_entry_s.
+        Update prototypes.
+
+        * src/muscle_tab.c: Include muscle_tab.h.
+        Rename macro_tabble to muscle_table.
+        (mhash1, mhash2, mcmp): Use muscle_entry.
+        (macro_init): Rename muscle_init. Update.
+        (macro_insert): Rename muscle_insert. Update.
+        (macro_find): Rename muscle_find. Update.
+
+        * src/main.c: Include muscle_tab.h.
+        (main): Call muscle_init ().
+        * src/Makefile.am (bison_SOURCES): Echo modifications.
+
+2001-09-02  Marc Autret  <autret_m@epita.fr>
+
+        Now the files macro_tab.[ch] are named muscle_tab.[ch].
+
+        * src/muscle_tab.c, src/muscle_tab.h: Add files.
+
+2001-09-02  Marc Autret  <autret_m@epita.fr>
+
+        * src/macrotab.c, src/macrotab.h: Remove.
+
+2001-09-01  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/reader.c (copy_guard): Use muscle to specify the `#line'
+        filename.
+
+2001-09-01  Marc Autret  <autret_m@epita.fr>
+
+        * tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
+        to an explicit value to activate the feature. We do it here.
+
+2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (prepare): Delete the `filename' muscule insertion.
+        * src/reader.c (copy_action): Use `filename' muscule with `#line'.
+        (parse_union_decl): Likewise.
+        * src/macrotab.c (macro_init): Initialize filename by infile.
+
+2001-08-31  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple (YYLSP_NEEDED): New definition.
+        * src/output.c (prepare): Add macro insertion of `locations_flag'
+
+2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (prepare): Delete insertion of previous muscles,
+        and insert the `prefix' muscles.
+        * src/macrotab.c (macro_init): Likewise.
+        (macro_init): Initialization prefix directive by `yy'.
+        * src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
+        %%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
+        yylval, yydebug, yyerror, yynerrs and yyparse.
+        New directive `#define' to substitute yydebug, ... with option
+        name_prefix.
+
+2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/main.c (main): Standardize.
+        * src/output.c (output_table_data, output_parser): Likewise.
+        * src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
+
+2001-08-31  Pascal Bart  <pascal.bart@epita.fr>, Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (read_additionnal_code): Rename %%user_code to
+        %%epilogue.
+        * src/output.c (output): Rename %%declarations to %%prologue.
+        * src/bison.simple: Echo modifications.
+
+2001-08-31  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (readgram): CleanUp.
+        (output_token_defines): Likewise.
+        (packsymbols): Likewise.
+        (reader): Likewise.
+        * src/output.c (output): CPP-out useless code.
+
+2001-08-31  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/reader.c (reader): Delete obsolete call to function
+        output_trailers and output_headers.
+        * src/output.h: Remove obsolete functions prototypes of output_headers
+        and output_trailers.
+
+2001-08-30  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/main.c: Include macrotab.h.
+        * src/macrotab.h (macro_entry_s): Constify fields.
+        Adjust functions prototypes.
+        * src/macrotab.c (macro_insert): Constify key and value.
+        (macro_find): Constify key.
+        (macro_insert): Include 'xalloc.h'
+        (macro_insert): Use XMALLOC.
+        (macro_find): Constify return value.
+        * src/output.c (output_table_data): Rename table to table_data.
+        (output_parser): Constify macro_key, macro_value.
+
+2001-08-30  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (parse_skel_decl): New.
+        (read_declarations): Add case `tok_skel', call parse_skel_decl ().
+        * src/lex.h (token_t): New token `tok_skel'.
+        * src/lex.c (percent_table): Add skeleton option entry.
+        Standardize.
+
+2001-08-29  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple: Add %%user_code directive at the end.
+        * src/reader.c (read_additionnal_code): New.
+        (reader): Use it.
+        * src/output.c (output_program): Remove.
+        (output): Update.
+
+2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+        * src/output.c (output_actions): Clean up.
+        (output_gram): CPP-out useless code.
+        * src/reader.c (reader): Clean up, CPP-out useless code.
+
+2001-08-28  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/output.c (output): Copy attrs_obstack in the '%%definitions'
+        directive.
+        * src/bison.simple: Add `%%definitions'.
+
+2001-08-28  Marc Autret  <autret_m@epita.fr>
+
+        * config/depcomp: New file.
+
+2001-08-27  Paul Eggert  <eggert@twinsun.com>
+
+        * src/bison.simple (yyparse): Don't take the address of an
+        item before the start of an array, as that doesn't conform to
+        the C Standard.
+
+2001-08-27  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/output.c (output): Remove the initialization of the macro
+        obstack.  It was done too late here.
+
+        * src/reader.c (parse_macro_decl): Fix.  Use of the macro obstack was
+        completely wrong.
+        (reader): Initialize the macro obstack here, since we need it to grow
+        '%define' directives.
+
+        * src/reader.h: Declare the macro obstack as extern.
+
+2001-08-27  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/output.c (output_parser): Fix.  Store single '%' characters in
+        the output obstack instead of throwing them away.
+
+2001-08-27  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.am (AUTOMAKE_OPTIONS): 1.5.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * lib/Makefile.am: Adjust.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/bison.simple: Update and add '%%' directives.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/reader.c (reader): Remove calls to 'output_headers' and
+        'output_trailers'. Remove some C output.
+        (readgram): Disable a piece of code that was writing a default
+        definition for 'YYSTYPE'.
+        (reader_output_yylsp): Remove.
+        (packsymbols): Output token defintions to a macro.
+        (copy_definition): Disable C output.
+
+        * src/reader.c (parse_macro_decl): New function used to parse macro
+        declarations.
+        (copy_string2): Put the body of copy_string into this new function.
+        Add a parameter to let the caller choose whether he wants to copy the
+        string delimiters or not.
+        (copy_string): Be a simple call to copy_string2 with the last argument
+        bound to true.
+        (read_declarations): Add case for macro definition.
+        (copy_identifier): New.
+        (parse_macro_decl): Read macro identifiers using copy_identifier
+        rather than lex.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/output.c (prepare): Add prefixed names.
+        (output_parser): Output semantic actions.
+        (output_parser): Fix bug on '%%line' directives.
+
+        * src/output.c (output_headers): Remove. The C code printed by this
+        function should now be in the skeletons.
+        (output_trailers): Remove.
+        (output): Disable call to 'reader_output_yylsp'.
+        (output_rule_data): Do not output tables to the table obstack.
+
+        * src/output.c: Remove some C dedicated output.
+        Improve the use of macro and output obstacks.
+        (output_defines): Remove.
+
+        * src/output.c (output_token_translations): Associate 'translate'
+        table with a macro. No output to the table obstack.
+        (output_gram): Same for 'rhs' and 'prhs'.
+        (output_stos): Same for 'stos'.
+        (output_rule_data): Same for 'r1' and 'r2'.
+        (token_actions): Same for 'defact'.
+        (goto_actions): Same for 'defgoto'.
+        (output_base): Same for 'pact' and 'pgoto'.
+        (output_table): Same for 'table'.
+        (output_check): Same for 'check'.
+
+        * src/output.c (output_table_data): New function.
+        (output_short_table): Remove.
+        (output_short_or_char_table): Remove.
+
+        * src/output.c (output_parser): Replace most of the skeleton copy code
+        with something new. Skeletons are now processed character by character
+        rather than line by line, and Bison looks for '%%' macros. This is the
+        first step in making Bison's output process (a lot) more flexible.
+        (output_parser): Use the macro table.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/main.c (main): Initialize the macro table.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/lex.c (percent_table): Add tok_define.
+        * src/lex.h: Add tok_define.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * src/macrotab.c: New file.
+        * src/macrotab.h: New file.
+        * src/Makefile.am: Update.
+
+2001-08-25  Robert Anisko  <robert.anisko@epita.fr>
+
+        * lib/hash.c: New file.
+        * lib/hash.h: New file.
+        * lib/Makefile.am: Update.
+
+2001-08-15  Akim Demaille  <akim@epita.fr>
+
+        Version 1.28c.
+
+2001-08-15  Marc Autret  <autret_m@epita.fr>
+
+        * src/reader.c (readgram): Indent output macro YYSTYPE.
+        (packsymbols): Likewise.
+        (output_token_defines): Likewise.
+        * src/files.c: Standardize.
+        (compute_header_macro): New.
+        (defines_obstack_save): New. Use compute_header_macro.
+        (output_files): Update. Use defines_obstack_save.
+
+2001-08-15  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo (Table of Symbols): Document
+        YYSTACK_USE_ALLOCA.
+
+2001-08-15  Akim Demaille  <akim@epita.fr>
+
+        * missing: Update from CVS Automake.
+        * config/config.guess, config/config.sub, config/texinfo.tex:
+        Update from gnu.org.
+
+2001-08-15  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint: Sync with CVS Autoconf.
+
+2001-08-14  Pascal Bart  <pascal.bart@epita.fr>
+
+        * doc/bison.texinfo: Include GNU Free Documentation License from
+        `fdl.texi'.
+        * doc/fdl.texi: Add to package.
+
+2001-08-14  Marc Autret  <autret_m@epita.fr>
+
+        Turn on %{source,header}_extension features.
+
+        * src/lex.c (percent_table): Un-CPP out header_extension and
+        source_extension.
+        * src/files.c (compute_exts_from_gf): Compare pointers with NULL.
+        (compute_exts_from_src): Remove conditions. It restores priorities
+        between options.
+
+2001-08-14  Marc Autret  <autret_m@epita.fr>
+
+        * src/files.c (compute_base_names): Add extensions computing when
+        `--file-prefix' used.
+        Standardize function calls.
+
+2001-08-13  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
+        defining it (defined but null disables alloca).
+
+2001-08-13  Marc Autret  <autret_m@epita.fr>
+
+        * src/bison.simple (_yy_memcpy): CPP reformat.
+
+2001-08-13  Pascal Bart  <pascal.bart@epita.fr>
+
+        * tests/atconfig.in (CPPFLAGS): Fix.
+
+2001-08-10  Pascal Bart  <pascal.bart@epita.fr>
+
+        * doc/bison.texinfo: Include GNU General Public License from
+        `gpl.texi'.
+        * doc/gpl.texi: Add to package.
+
+2001-08-10  Marc Autret  <autret_m@epita.fr>
+
+        * src/print_graph.h: Fix.
+        * src/reader.c (read_declarations): Use parse_header_extension_decl ().
+
+2001-08-10  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h: Provide default declarations for stpcpy, strndup,
+        and strnlen.
+
+2001-08-10  Robert Anisko  <anisko_r@epita.fr>
+
+        * doc/bison.texinfo (Locations): Update @$ stuff.
+
+2001-08-09  Robert Anisko  <anisko_r@epita.fr>
+
+        * src/bison.simple (YYLLOC_DEFAULT): Update.
+        (yyparse): Adjust.
+
+2001-08-08  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.texinfo: Change @samp{$<@dots{}>} to
+        @samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
+        Reported by Fabrice Bauzac.
+
+2001-08-08  Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
+        * src/vcg.c (output_node): Fix.
+        * src/vcg.h: Cleanup.
+        * src/print_graph.c: Add comments.
+        (node_output_size): New global variable. Simplify the formatting of
+        the VCG graph output.
+        (print_actions): Unused code is now used. It notifies the final state
+        and no action states in the VCG graph. It also give the reduce actions.
+        The `shift and goto' edges are red and the `go to state' edges are
+        blue.
+        Get the current node name and node_obstack by argument.
+        (node_obstack): New variable.
+        (print_state): Manage node_obstack.
+        (print_core): Use node_obstack given by argument.
+        A node is not only computed here but in print_actions also.
+        (print_graph): CPP out useless code instead of commenting it.
+
+2001-08-07  Pascal Bart  <pascal.bart@epita.fr>
+
+        * tests/atconfig.in (CPPFLAGS): Fix.
+
+2001-08-07  Akim Demaille  <akim@epita.fr>
+
+        * src/print_graph.c (quote): New.
+        (print_core): Use it.
+
+2001-08-06  Akim Demaille  <akim@epita.fr>, Marc Autret  <autret_m@epita.fr>
+
+        * src/vcg.c (complain.h): Include it.
+        Unepitaize `return' invocations.
+        [NDEBUG] (main): Remove.
+        * src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
+        * src/files.c (open_files): Initialize graph_obstack.
+        * src/print_graph.c (print_actions): CPP out useless code.
+        (print_core): Don't output the last `\n' in labels.
+        Use `quote'.
+        * src/files.c (output_files): Output the VCG file.
+        * src/main.c (main): Invoke print_graph ();
+
+2001-08-06  Marc Autret  <autret_m@epita.fr>
+
+        Automaton VCG graph output.
+        Using option ``-g'' or long option ``--graph'', you can generate
+        a gram_filename.vcg file containing a VCG description of the LALR (1)
+        automaton of your grammar.
+
+        * src/main.c: Call to print_graph() function.
+        * src/getargs.h: Update.
+        * src/getargs.c (options): Update to catch `-g' and `--graph' options.
+        (graph_flag): New flag.
+        (longopts): Update.
+        (getargs): Add case `g'.
+        * src/files.c (graph_obstack): New obstack struct.
+        (open_files): Initialize new obstack.
+        (output_files): Saves graph_obstack if required.
+        * src/files.h (graph_obstack): New extern declaration.
+        * src/Makefile.am: Add new source files.
+
+2001-08-06  Marc Autret  <autret_m@epita.fr>
+
+        * src/print_graph.c, src/print_graph.h (graph): New.
+        * src/vcg.h: New file.
+        * src/vcg.c: New file, VCG graph handling.
+
+2001-08-06  Marc Autret  <autret_m@epita.fr>
+
+        Add of %source_extension and %header_extension which specify
+        the source or/and the header output file extension.
+
+        * src/files.c (compute_base_names): Remove initialisation of
+        src_extension and header_extension.
+        (compute_exts_from_gf): Update.
+        (compute_exts_from_src): Update.
+        (output_files): Update.
+        * src/reader.c (parse_header_extension_decl): New.
+        (parse_source_extension_decl): New.
+        (read_declarations): New case statements for the new tokens.
+        * src/lex.c (percent_table): Add entries for %source_extension
+        and %header_extension.
+        * src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
+
+2001-08-06  Marc Autret  <autret_m@epita.fr>
+
+        * configure.in: Bump to 1.28c.
+        * doc/bison.texinfo: Texinfo thingies.
+
+2001-08-04  Pascal Bart  <pascal.bart@epita.fr>
+
+        * tests/atconfig.in (CPPFLAGS): Add.
+        * tests/calc.at (AT_CHECK): Use CPPFLAGS.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        Version 1.28b.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * tests/Makefile.am (check-local): Ship testsuite.
+        * tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
+        Include `string.h'.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Try using -Wformat when compiling.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Bump to 1.28b.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * src/complain.c: Adjust strerror_r portability issues.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        Version 1.28a.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c, src/getarg.h (skeleton)): Constify.
+        * src/lex.c (literalchar): Avoid name clashes on `buf'.
+        * src/getargs.c: Include complain.h.
+        * src/files.c, src/files.h (skeleton_find): Avoid name clashes.
+        * lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (readgram): Display hidden chars in error messages.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        Update to gettext 0.10.39.
+
+2001-08-03  Akim Demaille  <akim@epita.fr>
+
+        * lib/strspn.c: New.
+
+2001-08-01  Marc Autret  <autret_m@epita.fr>
+
+        * doc/bison.texinfo: Update.
+        * doc/bison.1 (mandoc): Update.
+        * src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
+        * src/files.c: Support output files extensions computing.
+        (src_extension): New static variable.
+        (header_extension): New static variable.
+        (tr): New function.
+        (get_extension_index): New function, gets the index of an extension
+        filename in a string.
+        (compute_exts_from_gf): New function, computes extensions from the
+        grammar file extension.
+        (compute_exts_from_src): New functions, computes extensions from the
+        C source file extension, file given by ``-o'' option.
+        (compute_base_names): Update.
+        (output_files): Update.
+
+2001-08-01  Robert Anisko  <anisko_r@epita.fr>
+
+        * doc/bison.texi: Document @$.
+        (Locations): New section.
+
+2001-07-18  Akim Demaille  <akim@epita.fr>
+
+        * Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
+        * config/prev-version.txt, config/move-if-change: New.
+        * Makefile.am: Adjust.
+
+2001-07-08  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/bison.simple (yyparse): Suppress warning `comparaison
+        between signed and unsigned'.
+
+2001-07-05  Pascal Bart  <pascal.bart@epita.fr>
+
+        * src/getargs.h (raw_flag): Remove.
+        * src/getargs.c: Die on `-r'/`--raw'.
+        * src/lex.c (parse_percent_token): Die on `%raw'.
+        * src/reader.c (output_token_defines): Suppress call to `raw_flag'.
+        * tests/calc.at: Suppress test with option `--raw'.
+
+2001-07-14  Akim Demaille  <akim@epita.fr>
+
+        * config/: New.
+        * configure.in: Require Autoconf 2.50.
+        Update to gettext 0.10.38.
+
+2001-03-16  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: ANSIfy the examples.
+
+2001-03-16  Akim Demaille  <akim@epita.fr>
+
+        * getargs.c (skeleton): New variable.
+        (longopts): --skeleton is a new option.
+        (shortopts, getargs): -S is a new option.
+        * getargs.h: Declare skeleton.
+        * output.c (output_parser): Use it.
+
+2001-03-16  Akim Demaille  <akim@epita.fr>
+
+        * m4/strerror_r.m4: New.
+        * m4/error.m4: Run AC_FUNC_STRERROR_R.
+        * lib/error.h, lib/error.c: Update.
+
+2001-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (longopts): Clean up.
+
+2001-02-21  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (gensym): `gensym_count' is your own.
+        Use a static buf to create the symbol name, as token_buffer is no
+        longer a buffer.
+
+2001-02-08  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflict_report): Be sure not to append to res
+        between two calls, which could happen if both first sprintf were
+        skipped, but not the first cp += strlen.
+
+2001-02-08  Akim Demaille  <akim@epita.fr>
+
+        * lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
+        New, from fileutils 4.0.37.
+        * configure.in: Require Autoconf 2.49c.  I took some time before
+        making this decision.  This is the only way out for portability
+        issues in Bison, it would mean way too much duplicate effort to
+        import in Bison features implemented in 2.49c since 2.13.
+        AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
+
+2001-02-02  Akim Demaille  <akim@epita.fr>
+
+        * lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
+        * lib/xalloc.h, lib/xmalloc.c: Update.
+
+2001-01-19  Akim Demaille  <akim@epita.fr>
+
+        Get rid of the ad hoc handling of token_buffer in the scanner: use
+        the obstacks.
+
+        * src/lex.c (token_obstack): New.
+        (init_lex): Initialize it.  No longer call...
+        (grow_token_buffer): this.  Remove it.
+        Adjust all the places which used it to use the obstack.
+
+2001-01-19  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.h: Rename all the tokens:
+        s/\bENDFILE\b/tok_eof/g;
+        s/\bIDENTIFIER\b/tok_identifier/g;
+        etc.
+        Let them be enums, not #define, to ease debugging.
+        Adjust all the code.
+
+2001-01-18  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
+        * src/lex.c (maxtoken, grow_token_buffer): Static.
+
+2001-01-18  Akim Demaille  <akim@epita.fr>
+
+        Since we now use obstacks, more % directives can be enabled.
+
+        * src/lex.c (percent_table): Also accept `%yacc',
+        `%fixed_output_files', `%defines', `%no_parser', `%verbose', and
+        `%debug'.
+        Handle the actions for `%semantic_parser' and `%pure_parser' here,
+        instead of returning a token.
+        * src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
+        * src/reader.c (read_declarations): Adjust.
+        * src/files.c (open_files): Don't call `compute_base_names', don't
+        compute `attrsfile' since they depend upon data which might be
+        *in* the input file now.
+        (output_files): Do it here.
+        * src/output.c (output_headers): Document the fact that this patch
+        introduces a guaranteed SEGV for semantic parsers.
+        * doc/bison.texinfo: Document them.
+        * tests/suite.at: Exercise these %options.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        Also handle the output file (--verbose) with obstacks.
+
+        * files.c (foutput): Remove.
+        (output_obstack): New.
+        Adjust all dependencies.
+        * src/conflicts.c: Return a string.
+        * src/system.h (obstack_grow_string): Rename as...
+        (obstack_sgrow): this.  Be ready to work with non literals.
+        (obstack_fgrow4): New.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (open_files): Fix the computation of short_base_name
+        in the case of `-o foo.tab.c'.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
+        (copy_dollar): Now that everything uses obstacks, get rid of the
+        FILE * parameters.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (open_files): Actually the `.output' file is based
+        on the short_base_name, not base_name.
+        * tests/suite.at (Checking output file names): Adjust.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1: Remove, we now use directly...
+        * src/bison.simple: this.
+        * src/Makefile.am: Use pkgdata instead of data.
+
+2000-12-20  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (guard_obstack): New.
+        (open_files): Initialize it.
+        (output_files): Dump it...
+        * src/files.h: Export it.
+        * src/reader.c (copy_guard): Use it.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (outfile, defsfile, actfile): Removed as global
+        vars.
+        (open_files): Don't compute them.
+        (output_files): Adjust.
+        (base_name, short_base_name): Be global.
+        Adjust dependencies.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (strsuffix): New.
+        (stringappend): Be just like strcat but allocate.
+        (base_names): Eve out from open_files.
+        Try to simplify the rather hairy computation of base_name and
+        short_base_name.
+        (open_files): Use it.
+        * tests/suite.at (Checking output file names): New test.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h (obstack_grow_literal_string): Rename as...
+        (obstack_grow_string): this.
+        * src/output.c (output_parser): Recognize `%% actions' instead of
+        `$'.
+        * src/bison.s1: s/$/%% actions/.
+        * src/bison.hairy: Likewise.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_parser): Compute the `#line' lines when
+        there are.
+        * src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
+        Suggested by Hans Aberg.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        Let the handling of the skeleton files be local to the procedures
+        that use it.
+
+        * src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
+        longer static.
+        (fparser, open_extra_files): Remove.
+        (open_files, output_files): Don't take care of fparser.
+        * src/files.h: Adjust.
+        * src/output.c (output_parser): Open and close the file to the
+        skeleton.
+        * src/reader.c (read_declarations): When %semantic_parser, open
+        fguard.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
+        * src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (open_files): Yipee!  We no longer need all the code
+        looking for `/tmp' since we have no tmp file.
+
+2000-12-19  Akim Demaille  <akim@epita.fr>
+
+        * src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
+        New macros.
+        * src/files.c (open_files): Less dependency on MSDOS etc.
+
+2000-12-14  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 (YYLLOC_DEFAULT): New macro.
+        Provide a default definition.
+        Use it when executing the default @ action.
+        * src/reader.c (reader_output_yylsp): No longer include
+        `timestamp' and `text' in the default YYLTYPE.
+
+2000-12-12  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_definition, parse_union_decl, copy_action)
+        (copy_guard): Quote the file names.
+        Reported by Laurent Mascherpa.
+
+2000-12-12  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_headers, output_program, output): Be sure
+        to escape special characters when outputting filenames.
+        (ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
+        (output_headers): Don't depend on them, Use ACTSTR.
+
+2000-11-17  Akim Demaille  <akim@epita.fr>
+
+        * lib/obstack.h: Formatting changes.
+        (obstack_grow, obstack_grow0): Don't cast WHERE at all: it
+        prevents type checking.
+        (obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
+        cast the value to (void *): assigning a `foo *' to a `void *'
+        variable is valid.
+        (obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
+        * src/reader.c (parse_union_decl): Typo: use obstack_1grow to
+        append characters.
+
+2000-11-17  Akim Demaille  <akim@epita.fr>
+
+        * tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
+        as...
+        (suite.m4, regression.m4, calc.m4): these.
+        * tests/atgeneral.m4: Update from CVS Autoconf.
+
+2000-11-17  Akim Demaille  <akim@epita.fr>
+
+        * tests/regression.m4 (%union and --defines): New test,
+        demonstrating a current bug in the obstack implementation.
+
+2000-11-17  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
+        macros.
+        Use them to declare the variables which are global or local to
+        `yyparse'.
+
+2000-11-17  Akim Demaille  <akim@epita.fr>
+
+        * acconfig.h: Remove, no longer used.
+
+2000-11-07  Akim Demaille  <akim@epita.fr>
+
+        * src: s/Copyright (C)/Copyright/g.
+
+2000-11-07  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
+        defining.
+        * src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
+
+2000-11-07  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 (YYLEX): Use #if instead of #ifdef.
+        Merge in a single CPP if/else.
+
+2000-11-07  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output): Remove useless variables.
+        * lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
+        argument `data' for consistency with the prototypes.
+        Qualify it `const'.
+        (obstack_copy, obstack_copy0): Rename the second argument as
+        `address' for consistency.  Qualify it `const'.
+        * lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
+        (obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
+        `const' their input argument (`data' or `address').
+        Adjust the corresponding macros to include `const' in casts.
+
+2000-11-03  Akim Demaille  <akim@epita.fr>
+
+        * src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
+        s/PFILE1/BISON_HAIRY/.
+        Adjust dependencies.
+
+2000-11-03  Akim Demaille  <akim@epita.fr>
+
+        For some reason, this was not applied.
+
+        * src/files.c [VMS]: No longer include `ssdef.h', no longer define
+        `unlink': it's no longer used.
+
+2000-11-03  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (skeleton_find): New function, eved out of...
+        (open_files, open_extra_files): here.
+
+2000-11-03  Akim Demaille  <akim@epita.fr>
+
+        Don't use `atexit'.
+
+        * src/files.c (obstack_save): New function.
+        (done): Rename as...
+        (output_files): this.
+        Use `obstack_save'.
+        * src/main.c (main): Don't use `atexit' to register `done', since
+        it no longer has to remove tmp files, just call `output_files'
+        when there are no errors.
+
+2000-11-02  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c [VMS]: No longer include `ssdef.h', no longer define
+        `unlink': it's no longer used.
+        * src/files.h: Formatting changes.
+
+2000-11-02  Akim Demaille  <akim@epita.fr>
+
+        Remove the last uses of mktemp and unlink/delete.
+
+        * src/files.c (fdefines, ftable): Removed.
+        (defines_ostack, table_obstack): New.
+        Adjust dependencies of the former into uses of the latter.
+        * src/output.c (output_short_or_char_table, output_short_table):
+        Convert to using obstacks.
+        * src/reader.c (copy_comment2): Accept one FILE * and two
+        obstacks.
+        (output_token_defines, reader_output_yylsp): Use obstacks.
+        * src/system.h (obstack_fgrow3): New.
+        * po/POTFILES.in: Adjust.
+
+2000-11-01  Akim Demaille  <akim@epita.fr>
+
+        Change each use of `fattrs' into a use of `attrs_obstack'.
+
+        * src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
+        * src/files.c (fattrs): Remove.
+        (attrs_obstack): New.
+        Adjust all dependencies.
+        (done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
+
+2000-11-01  Akim Demaille  <akim@epita.fr>
+
+        Introduce obstacks.
+        Change each use of `faction' into a use of `action_obstack'.
+
+        * lib/obstack.h, lib/obstack.c: New files.
+        * src/files.c (faction): Remove.
+        (action_obstack): New.
+        Adjust all dependencies.
+
+2000-10-20  Akim Demaille  <akim@epita.fr>
+
+        * lib/quote.h (PARAMS): New macro.  Use it.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_short_or_char_table): New function.
+        (output_short_table, output_token_translations): Use it.
+        (goto_actions): Use output_short_table.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/symtab.c (bucket_new): New function.
+        (getsym): Use it.
+
+        * src/output.c (output_short_table): New argument to display the
+        comment associated with the table.
+        Adjust dependencies.
+        (output_gram): Use it.
+        (output_rule_data): Nicer output layout for YYTNAME.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.c (read_typename): New function.
+        (lex): Use it.
+        * src/reader.c (copy_dollar): Likewise.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_comment2): Expect the input stream to be on
+        the `/' which is suspected to open a comment, instead of being
+        called after `//' or `/*' was read.
+        (copy_comment, copy_definition, parse_union_decl, copy_action)
+        (copy_guard): Adjust.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_expect_decl): Use `skip_white_space' and
+        `read_signed_integer'.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_dollar): New function.
+        (copy_guard, copy_action): Use it.
+
+2000-10-16  Akim Demaille  <akim@epita.fr>
+
+        * lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
+        * m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
+        New files, from Fileutils 4.0.27.
+        * src/main.c (printable_version): Remove.
+        * src/lex.c, src/reader.c: Use `quote'.
+
+2000-10-04  Akim Demaille  <akim@epita.fr>
+
+        * lib/error.c, lib/error.h: New files, needed by xmalloc.c.
+
+2000-10-04  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Various typos spotted by Neil Booth.
+
+2000-10-04  Akim Demaille  <akim@epita.fr>
+
+        When a literal string is used to define two different tokens,
+        `bison -v' segfaults.
+        Reported by Piotr Gackiewicz, and fixed by Neil Booth.
+
+        * tests/regression.m4: New file.
+        Include the core of the sample provided by Piotr Gackiewicz.
+        * src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
+        properly.
+
+2000-10-04  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (parse_expect_decl): Keep `count' within the size
+        of `buffer'.
+        From Neil Booth.
+
+2000-10-02  Paul Eggert  <eggert@twinsun.com>
+
+        * bison.s1 (yyparse): Assign the default value
+        unconditionally, to avoid a GCC warning and make the parser a
+        tad smaller.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (getargs): Don't dump `--help' on unrecognized
+        options.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.c, src/print.c, src/reduce.c: To ease the
+        translation, move some `\n' out of the translated strings.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        The location tracking mechanism is precious for parse error
+        messages.  Nevertheless, it is enabled only when `@n' is used in
+        the grammar, which is a different issue (you can use it in error
+        message, but not in the grammar per se).  Therefore, there should
+        be another means to enable it.
+
+        * src/getargs.c (getargs): Support `--locations'.
+        (usage): Report it.
+        * src/getargs.h (locationsflag): Export it.
+        * src/lex.c (percent_table): Support `%locations'.
+        * src/reader.c (yylsp_needed): Remove this variable, now replaced
+        with `locationsflag'.
+        * doc/bison.texinfo: Document `--locations' and `%locations'.
+        Sort the options.
+        * tests/calc.m4: Test it.
+
+        For regularity of the names, replace each
+        (nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
+        (no_lineflag, token_tableflag, rawflag, no_parserflag): this.
+        In addition replace each `flag' with `_flag'.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        Also test parse error messages, including with YYERROR_VERBOSE.
+
+        * tests/calc.m4 (calc.y): Add support for `exp = exp' (non
+        associative).
+        Use it to check the computations.
+        Use it to check `nonassoc' is honored.
+        (AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
+        `--yyerror-verbose'.
+        (_AT_CHECK_CALC): Adjust to this option.
+        (_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        Test also `--verbose', `--defines' and `--name-prefix'.  Testing
+        the latter demonstrates a flaw in the handling of non debugging
+        parsers introduced by myself on 2000-03-16: `#define yydebug 0'
+        was used in order to simplify:
+
+        #if YYDEBUG
+        if (yydebug)
+        {
+        ...
+        }
+        #endif
+
+        into
+
+        if (yydebug)
+        {
+        ...
+        }
+
+        unfortunately this leads to a CPP conflict when
+        `--name-prefix=foo' is used since it produces `#define yydebug
+        foodebug'.
+
+        * src/bison.s1 [!YYDEBUG]: Do not define yydebug.
+        (YYDPRINTF): New macro.
+        Spread its use.
+        * tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
+        the bison options.
+        Also test `--verbose', `--defines' and `--name-prefix'.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        Improve the readability of the produced parsers.
+
+        * src/bison.s1: Formatting changes.
+        Improve the comment related to the `$' mark.
+        (yydefault): Don't fall through to `yyresume': `goto' there.
+        * src/output.c (output_parser): When the `$' is met, skip the end
+        of its line.
+        New variable, `number_of_dollar_signs', to check there's exactly
+        one `$' in the parser skeleton.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * lib/xstrdup.c: New file, from the fileutils.
+        * src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
+        (parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
+        instead of strlen + xmalloc + strcpy.
+        * src/symtab.c (copys): Remove, use xstrdup instead.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/gram.h (associativity): New enum type which replaces the
+        former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
+        `right_assoc', `left_assoc' and `non_assoc'.
+        Adjust all dependencies.
+        * src/reader.c: Formatting changes.
+        (LTYPESTR): Don't define it, use it as a literal in
+        `reader_output_yylsp'.
+        * src/symtab.h (symbol_class): New enum type which replaces the
+        former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
+        `sunknown', `stoken and `snterm'.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (fixed_outfiles): Rename as...
+        (yaccflag): for consistency and accuracy.
+        Adjust dependencies.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        Use the more standard files `xalloc.h' and `xmalloc.c' instead of
+        Bison's `allocate.c' and `alloc.h'.  This patch was surprisingly
+        difficult and introduced a lot of core dump.  It turns out that
+        Bison used an implementation of `xmalloc' based on `calloc', and
+        at various places it does depend upon the initialization to 0.  I
+        have not tried to isolate the pertinent places, and all the former
+        calls to Bison's `xmalloc' are now using `XCALLOC'.  Someday,
+        someone should address this issue.
+
+        * src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
+        * lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
+        files.
+        Adjust dependencies.
+        * src/warshall.h: New file.
+        Propagate.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        Various anti-`extern in *.c' changes.
+
+        * src/system.h: Include `assert.h'.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/state.h (nstates, final_state, first_state, first_shift)
+        (first_reduction): Move their exportation from here...
+        * src/LR0.h: to here.
+        Adjust dependencies.
+        * src/getargs.c (statisticsflag): New variable.
+        Add support for `--statistics'.
+        Adjust dependencies.
+
+        Remove a lot of now useless `extern' statements in most files.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/LR0.h: New file.
+        Propagate its use.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/print.h: New file.
+        Propagate its use.
+        * src/print.c: Formatting and ordering changes.
+        (verbose, terse): Replace with...
+        (print_results): this new function.
+        Adjust dependencies.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/conflicts.c (conflict_report): New function.
+        (conflict_log, verbose_conflict_log): Replace with...
+        (print_conflicts): this function.
+        Adjust dependencies.
+        * src/conflicts.h: New file.
+        Propagate its inclusion.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/nullable.h: New file.
+        Propagate its inclusion.
+        * src/nullable.c: Formatting changes.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/reduce.h: New file.
+        Propagate its inclusion.
+        * src/reduce.c: Topological sort and other formatting changes.
+        (bool, TRUE, FALSE): Move their definition to...
+        * src/system.h: here.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c: Formatting changes.
+        (tryopen, tryclose, openfiles): Rename as...
+        (xfopen, xfclose, open_files): this.
+        (stringappend): static.
+        * src/files.h: Complete the list of exported symbols.
+        Propagate its use.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.h: New file.
+        Propagate its use instead of tedious list of `extern' and
+        prototypes.
+        * src/reader.c: Formatting changes, topological sort,
+        s/register//.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/lex.h: Prototype `lex.c' exported functions.
+        * src/reader.c: Adjust.
+        * src/lex.c: Formatting changes.
+        (safegetc): Rename as...
+        (xgetc): this.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/lalr.h: New file.
+        Propagate its inclusion instead of prototypes and `extern'.
+        * src/lalr.c: Formatting changes, topological sorting etc.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (token_actions): Introduce a temporary array,
+        YYDEFACT, that makes it possible for this function to use
+        output_short_table.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        `user_toknums' is output as a `short[]' in `output.c', while it is
+        defined as a `int[]' in `reader.c'.  For consistency with the
+        other output tables, `user_toknums' is now defined as a table of
+        shorts.
+
+        * src/reader.c (user_toknums): Be a short table instead of an int
+        table.
+        Adjust dependencies.
+
+        Factor the short table outputs.
+
+        * src/output.c (output_short_table): New function.
+        * src/output.c (output_gram, output_stos, output_rule_data)
+        (output_base, output_table, output_check):  Use it.
+
+2000-10-02  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output): Topological sort of the functions, in
+        order to get rid of the `static' prototypes.
+        No longer use `register'.
+        * src/output.h: New file.
+        Propagate its inclusion in files explicitly prototyping functions
+        from output.c.
+
+2000-09-21  Akim Demaille  <akim@epita.fr>
+
+        * src/atgeneral.m4: Update from Autoconf.
+
+2000-09-21  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.h: New file.
+        * src/closure.c: Formatting changes, topological sort over the
+        functions, use of closure.h.
+        (initialize_closure, finalize_closure):  Rename as...
+        (new_closure, free_closure): these.  Adjust dependencies.
+        * src/LR0.c: Formatting changes, topological sort, use of
+        cloture.h.
+        (initialize_states): Rename as...
+        (new_states): this.
+        * src/Makefile.am (noinst_HEADERS): Adjust.
+
+2000-09-20  Akim Demaille  <akim@epita.fr>
+
+        * src/acconfig.h: Don't protect config.h against multiple
+        inclusion.
+        Don't define PARAMS.
+        * src/system.h: Define PARAMS.
+        Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
+        purpose of config.h.  system.h must not try to fix wrong
+        definitions in config.h.
+
+2000-09-20  Akim Demaille  <akim@epita.fr>
+
+        * src/derives.h: New file.
+        * src/main.c, src/derives.h: Use it.
+        Formatting changes.
+        * src/Makefile.am (noinst_HEADERS): Adjust.
+
+2000-09-20  Akim Demaille  <akim@epita.fr>
+
+        * tests/atgeneral.m4: Update from Autoconf.
+        * tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
+        (AT_CHECK_CALC): New macros.
+        Use these macros to test bison with options `', `--raw',
+        `--debug', `--yacc', `--yacc --debug'.
+
+2000-09-19  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c: Formatting changes.
+        * src/machine.h: Remove, leaving its contents in...
+        * src/system.h: here.
+        Include stdio.h.
+        Adjust all dependencies on stdio.h and machine.h.
+        * src/getargs.h: New file.
+        Let all `extern' declarations about getargs.c be replaced with
+        inclusion of `getargs.h'.
+        * src/Makefile.am (noinst_HEADERS): Adjust.
+
+        * tests/calc.m4 (yyin): Be initialized in main, not on the global
+        scope.
+        (yyerror): Returns void, not int.
+        * doc/bison.texinfo: Formatting changes.
+
+2000-09-19  Akim Demaille  <akim@epita.fr>
+
+        * tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
+        portable.
+
+2000-09-18  Akim Demaille  <akim@epita.fr>
+
+        * configure.in: Append WARNING_CFLAGS to CFLAGS.
+        * src/Makefile.am (INCLUDES): Don't.
+        Be ready to fetch headers in lib/.
+
+2000-09-18  Akim Demaille  <akim@epita.fr>
+
+        * doc/bison.texinfo: Update the copyright.
+        ANSIfy and GNUify the examples.
+        Remove the old menu.
+
+2000-09-18  Akim Demaille  <akim@epita.fr>
+
+        First set of tests: use the `calc' example from the documentation.
+
+        * src/bison.s1 (yyparse): Condition the code using `yytname' which
+        is defined only when YYDEBUG is.
+        * m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
+        * src/files.c (tryopen, tryclose): Formatting changes.
+        Move to the top and be static.
+        * src/reader.c (read_signed_integer): Likewise.
+        * tests/calc.m4: New file.
+        * Makefile.am, suite.m4: Adjust.
+        * m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
+
+2000-09-18  Akim Demaille  <akim@epita.fr>
+
+        Add support for an Autotest test suite for Bison.
+
+        * m4/m4.m4, m4/atconfig.m4: New files.
+        * m4/Makefile.am (EXTRA_DIST): Adjust.
+        * tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
+        files.
+        * src/getargs.c: Display a more standard --version message.
+        * src/reader.c (reader): Formatting changes.
+        No longer depend upon VERSION_STRING.
+        * configure.in: No longer use `dnl'.
+        Set up the test suite and the new directory `tests/.
+        (VERSION_STRING): Remove.
+
+2000-04-14  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_comment2): New function, same as former
+        `copy_comment', but outputs into two FILE *.
+        (copy_comment): Use it.
+        (parse_union_decl): Use it.
+        (get_type, parse_start_decl): Use the same `invalid' message.
+        (parse_start_decl, parse_union_decl): Use the same `multiple'
+        message.
+        (parse_union_decl, copy_guard, copy_action): Use the same
+        `unmatched' message.
+        * m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
+
+2000-03-31  Akim Demaille  <akim@epita.fr>
+
+        * src/files.c (tryopen, tryclose): Move to the top.
+        Be static.
+
+2000-03-31  Akim Demaille  <akim@epita.fr>
+
+        * src/main.c (main): Don't call `done', exit does it.
+
+2000-03-31  Akim Demaille  <akim@epita.fr>
+
+        * allocate.c: s/return (foo)/return foo/.
+        * lalr.c: Likewise.
+        * LR0.c: Likewise.
+        * output.c: Likewise.
+        * reader.c: Likewise.
+        * symtab.c: Likewise.
+        * vmsgetargs.c: Likewise.
+
+2000-03-31  Akim Demaille  <akim@epita.fr>
+
+        Clean up the error reporting functions.
+
+        * src/report.c: New file.
+        * src/report.h: Likewise.
+        * src/Makefile.am: Adjust.
+        * m4/error.m4: New file.
+        * m4/Makefile.am: Adjust.
+        * configure.in (jm_PREREQ_ERROR): Call it.
+        * src/main.c (int_to_string, banner, fatal_banner, warn_banner):
+        Remove.
+        (fatal, fatals): Remove.  All callers use complain.c::fatal.
+        (warn, warni, warns, warnss, warnss): Remove.  All callers use
+        complain.c::complain.
+        (toomany): Remove, use fatal instead.
+        * src/files.c (done): No argument, use complain_message_count.
+        * src/main.c (main): Register `done' to `atexit'.
+
+        * src/getargs.c (usage): More `fputs', less `fprintf'.
+
+2000-03-28  Akim Demaille  <akim@epita.fr>
+
+        * lib/: New directory.
+        * Makefile.am (SUBDIRS): Adjust.
+        * configure.in: Adjust.
+        (LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
+        useless.
+        * src/alloca.c: Moved to lib/.
+        * src/getopt.c: Likewise.
+        * src/getopt1.c: Likewise.
+        * src/getopt.h: Likewise.
+        * src/ansi2knr.c: Likewise.
+        * src/ansi2knr.1: Likewise.
+        * src/Makefile.am: Adjust.
+        * lib/Makefile.am: New file.
+
+2000-03-28  Akim Demaille  <akim@epita.fr>
+
+        * src/getargs.c (usage): Refresh the help message.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/getopt1.c: Updated from textutils 2.0e
+        * src/getopt.c: Likewise.
+        * src/getopt.h: Likewise.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/Makefile.am (bison.simple): Fix the awk program: quote only
+        the file name, not the whole `#line LINE FILE'.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        On syntax errors, report the token on which we choked.
+
+        * src/bison.s1 (yyparse): In the label yyerrlab, when
+        YYERROR_VERBOSE, add yychar in msg.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_at): New function.
+        (copy_guard): Use it.
+        (copy_action): Use it.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        Be kind to translators, save some useless translations.
+
+        * src/main.c (banner): New function.
+        (fatal_banner): Use it.
+        (warn_banner): Use it.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_definition): Use copy_string and
+        copy_comment.  Removed now unused `match', `ended',
+        `cplus_comment'.
+        (copy_comment, copy_string): Moved, to be visible from
+        copy_definition.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_string): Declare `static inline'.  No
+        problems with inline, since it is checked by configure.
+        (copy_comment): Likewise.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (packsymbols): Formatting changes.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_comment): New function, factored out from:
+        (copy_action): Use it.  Removed now unused `match', `ended',
+        `cplus_comment'.
+        (copy_guard): Likewise.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/reader.c (copy_string): New function, factored out from:
+        (copy_action): Use it.
+        (copy_guard): Likewise.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        Change the handling of @s so that they behave exactly like $s.
+        There is now a pseudo variable @$ (readble and writable), location
+        of the lhs of the rule (by default ranging from the location of
+        the first symbol of the rhs, to the location of the last symbol,
+        or, if the rhs is empty, YYLLOC).
+
+        * src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
+        yyval.
+        (yyparse): When providing a default semantic action, provide a
+        default location action.
+        (after the $): No longer change `*YYLSP', just stack YYLOC the
+        same way you stack YYVAL.
+        * src/reader.c (read_declarations): Use warns.
+        (copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
+        (copy_action, case '@'): Likewise.
+        Use a standard error message, to save useless work from
+        translators.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1: Formatting and cosmetics changes.
+        * src/reader.c: Likewise.
+        Update the Copyright notice.
+
+2000-03-17  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 (#line): All set to `#line' only, since the
+        Makefile now handles them.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/output.c (output_rule_data): Output the documentation of
+        some of the tables.
+        (Copyright notice): Update.
+        Formatting changes.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 [!YYDEBUG]: Define yydebug to 0.  This allows to
+        remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
+        One `#if YYDEBUG' remains, since it uses variables which are
+        defined only if `YYDEBUG != 0'.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1 (yyparse): Reorganize the definitions of the stacks
+        and related variables so that the similarities are highlighted.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1: Properly indent CPP directives.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        * src/bison.s1: Properly indent the `alloca' CPP section.
+
+2000-03-16  Akim Demaille  <akim@epita.fr>
+
+        Do not hard code values of directories in `configure.in'.
+        Update the `configure' tool chain.
+
+        * configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
+        src/makefile.am.
+        (VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
+        (AC_OUTPUT): Add m4/Makefile.
+        Bump to bison 1.28a, 1.29 has never been released.
+        * acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
+        handled via src/Makefile.am.
+        (VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
+        HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
+        autoheader.
+        * Makefile.am (SUBDIRS): Add m4.
+        (ACLOCAL_AM_FLAGS): New variable.
+        (AUTOMAKE_OPTIONS): Add check-news.
+        * src/Makefile.am (bison.simple): Use awk to replace #line lines with
+        the proper line number and file name.
+        (DEFS): Propagate the location of bison library files and of the
+        locale files.
+        (INCLUDES): Added `-I ..' so that one can compile with srcdir !=
+        builddir.
+        * acinclude.m4: Remove, replaced by the directory m4.
+        * m4/Makefile.am (EXTRA_DIST): New variable.
+        * m4/gettext.m4: New file, from the fileutils.
+        * m4/lcmessage.m4: Likewise
+        * m4/progtest.m4: Likewise.
+        * m4/bison-decl.m4: New file, extracted from former acinclude.m4.
+
+2000-03-10  Akim Demaille  <akim@epita.fr>
+
+        * src/closure.c:
+        Formatting changes of various comments.
+        Respect the GNU coding standards at various places.
+        Don't use `_()' when no translation is needed.
+
+1999-12-13  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/files.c:
+        OS/2 honors TMPDIR environment variable.
+
+1999-12-13  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.texinfo: Tweaked spelling and grammar.
+        Updated ISBN.
+        Removed reference to price of printed copy.
+        Mention BISON_SIMPLE and BISON_HAIRY.
+
+1999-12-13  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in, NEWS:
+        Bison 1.29 released.
+
+1999-10-27  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
+        Added reference card.
+
+1999-07-26  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/ru.po: Added Russian translation.
+
+1999-07-26  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in: Added Russian translation.
+
+1999-07-06  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in, NEWS, README:
+        Released version 1.28.
+
+1999-06-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/system.h:
+        Squashed redefinition warning on some systems.
+
+        * src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
+        Have configure build version string instead of relying on ANSI string
+        concatentation.
+
+1999-06-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/POTFILES.in: Got rid of version.c.
+
+1999-06-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * acconfig.h, configure.in:
+        Have configure build version string instead of relying on ANSI string
+        concatentation.
+
+1999-06-08  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.1:
+        Dropped mention of `+' for long-named options.
+
+1999-05-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/files.c: Added <unistd.h> for unlink().
+
+        * src/Makefile.am, src/system.h:
+        I18n fixes.
+
+1999-05-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * README: Added a FAQ list.
+
+        * configure.in, acconfig.h:
+        I18n fixes.
+
+1999-05-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/FAQ, doc/Makefile.am:
+        Added a FAQ list.
+
+1999-05-19  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/alloc.h, src/symtab.h, src/version.c:
+        Protected inclusion of "config.h" with HAVE_CONFIG_H.
+
+1999-04-18  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/.cvsignore, src/Makefile.am:
+        Reorganized: sources in `src', documentation in `doc'.
+
+        * src/lex.c (literalchar):
+        fixed the code for escaping double quotes (thanks
+        Jonathan Czisny.)
+
+1999-04-18  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
+        Adjusted paths to reflect directory reorganization.
+
+1999-04-18  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/.cvsignore, doc/Makefile.am:
+        Reorganized: sources in `src', documentation in `doc'.
+
+1999-04-18  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in:
+        Updated AC_INIT file to reflect directory reorganization.
+
+        * configure.in, .cvsignore, Makefile.am, POTFILES.in:
+        Reorganized: sources in `src', documentation in `doc'.
+
+1999-04-13  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/allocate.c:
+        Don't declare calloc() and realloc() if not necessary.
+
+1999-04-13  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in, acconfig.h, acinclude.m4:
+        Don't declare calloc() and realloc() if not necessary.
+
+1999-03-23  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/.cvsignore: Added i18n support.
+
+1999-03-23  Jesse Thilo  <jthilo@gnu.org>
+
+        * acconfig.h, configure.in, Makefile.am:
+        Added i18n support.
+
+1999-03-22  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/bison.s1: Fixed #line numbers.
+
+1999-03-15  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/es.po, po/fr.po, po/nl.po, po/de.po:
+        Added PO files from Translation Project.
+
+1999-03-03  Jesse Thilo  <jthilo@gnu.org>
+
+        * Makefile.am:
+        Added support for non-ANSI compilers (ansi2knr).
+
+1999-02-16  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in: Bumped version number to 1.27.
+
+        * Makefile.am:
+        Added `bison.simple' to list of files removed by `make distclean'.
+
+1999-02-12  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/files.c, src/files.h:
+        Defined locations of parser files in config.h instead of Makefile.
+
+1999-02-12  Jesse Thilo  <jthilo@gnu.org>
+
+        * acconfig.h, acinclude.m4, configure.in, Makefile.am:
+        Defined locations of parser files in config.h instead of Makefile.
+
+1999-02-09  Jesse Thilo  <jthilo@gnu.org>
+
+        * Makefile.am:
+        Removed inappropriate use of $< macro.
+
+1999-02-05  Jesse Thilo  <jthilo@gnu.org>
+
+        * po/Makefile.in.in, po/POTFILES.in:
+        Add `po' directory skeleton.
+
+1999-01-27  Jesse Thilo  <jthilo@gnu.org>
+
+        * README: Document help-bison list.
+
+        * configure.in: Add check for mkstemp().
+
+1999-01-20  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
+        Hush a few compiler warnings.
+
+        * src/files.c:
+        Add tryclose(), which verifies that fclose was successful.
+        Hush a couple of compiler warnings.
+
+1999-01-20  Jesse Thilo  <jthilo@gnu.org>
+
+        * Makefile.am, OChangeLog:
+        ChangeLog is now automatically generated.  Include the old version as
+        OChangeLog.
+
+1999-01-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/gram.h, src/lalr.c, src/lex.c, src/lex.h, src/machine.h, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/state.h, src/symtab.c, src/symtab.h, src/types.h, src/vmsgetargs.c, src/warshall.c, src/allocate.c, src/alloc.h, src/bison.s1, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/files.h, src/getargs.c, src/gram.c, src/LR0.c:
+        Update FSF address.
+
+1999-01-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.texinfo: Fix formatting glitch.
+
+        * doc/bison.texinfo: Update FSF address.
+
+1999-01-14  Jesse Thilo  <jthilo@gnu.org>
+
+        * acconfig.h: Update FSF address.
+
+1999-01-08  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/system.h:
+        Don't define PACKAGE here, since config.h defines it.
+
+1998-12-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/reader.c: Update copyright date.
+
+        * src/main.c:
+        Ditch sprintf to statically-sized buffers in fatal/warn functions in
+        favor of output directly to stderr (avoids buffer overruns).
+
+        * src/reader.c: Some checks for premature EOF.
+
+        * src/allocate.c, src/alloc.h, src/closure.c, src/conflicts.c, src/derives.c, src/getargs.c, src/gram.c, src/lalr.c, src/lex.c, src/LR0.c, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reduce.c, src/symtab.c, src/symtab.h, src/warshall.c:
+        Use prototypes if the compiler understands them.
+
+        * src/files.c: Honor TMPDIR on Unix hosts.
+        Use prototypes if the compiler understands them.
+
+        * src/reader.c:
+        Fix a couple of buffer overrun bugs.
+        Use prototypes if the compiler understands them.
+
+        * src/system.h: Include unistd.h and ctype.h.
+        Use #ifdef instead of #if for NLS symbols.
+
+1998-12-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.texinfo:
+        Delete comment "consider using @set for edition number, etc..." since
+        we now are doing so.
+
+1998-12-30  Jesse Thilo  <jthilo@gnu.org>
+
+        * configure.in:
+        Use prototypes if the compiler understands them.
+
+        * NEWS: Document 1.26 highlights.
+
+        * Makefile.am: Require Automake 1.3 or later.
+
+        * acconfig.h:
+        Use prototypes if the compiler understands them.
+
+1998-12-29  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/version.c:
+        Use VERSION symbol from automake for version number.
+
+1998-12-29  Jesse Thilo  <jthilo@gnu.org>
+
+        * acconfig.h, configure.in, version.cin:
+        Use VERSION symbol from automake for version number.
+
+1998-11-28  Jesse Thilo  <jthilo@gnu.org>
+
+        * Makefile.am:
+        Distribute original version of simple parser (bison.s1), not built
+        version (bison.simple).
+
+1998-11-28  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.texinfo: Add info dir entry.
+
+        * doc/bison.texinfo:
+        Let automake put version number into documentation.
+
+1998-11-26  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/bison.cld, src/build.com, src/vmshlp.mar:
+        Add non-RCS files from /gd/gnu/bison.
+
+1998-11-26  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.1:
+        Document the BISON_HAIRY and BISON_SIMPLE variables.
+
+1998-11-25  Jesse Thilo  <jthilo@gnu.org>
+
+        * src/version.c: Build version.c automatically.
+
+        * src/reader.c:
+        Fix token numbering (used to start at 258, not 257).
+
+        * src/system.h: Include config.h.
+
+        * src/getargs.c: Update bug report address.
+
+        * src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
+        Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
+
+1998-11-25  Jesse Thilo  <jthilo@gnu.org>
+
+        * Makefile.am:
+        Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
+
+        * configure.in, version.cin:
+        Build version.c automatically.
+
+        * AUTHORS: Add AUTHORS file.
+
+        * README: Update bug report address.
+
+        * bison.simple:
+        Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
+
+        * configure.in, Makefile.am, Makefile.in, stamp-h.in:
+        Add automake stuff.
+
+1998-11-25  Jesse Thilo  <jthilo@gnu.org>
+
+        * doc/bison.texinfo: Clean up some formatting.
+
+1998-05-05  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo:
+        Explain better why to make a pure parser.
+
+1998-01-05  Richard Stallman  <rms@gnu.org>
+
+        * src/files.c (openfiles):
+        [_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
+        find a temporary directory, if possible.  Do not unlink files while
+        they are open.
+
+1997-08-25  Richard Stallman  <rms@gnu.org>
+
+        * src/reader.c (stack_offset;):
+        Change some warni to warns.
+
+        * src/lex.c (literalchar): Use warns, not warni.
+
+1997-06-28  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: Add a Bison version comment.
+
+        * src/main.c (fatal, warn, berror):
+        Use program_name.
+
+1997-06-28  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in (bison_version): New variable.
+        (dist): Use that variable.
+        (bison.s1): Substitute the Bison version into bison.simple.
+
+        * bison.simple: Add a Bison version comment.
+
+1997-06-18  Richard Stallman  <rms@gnu.org>
+
+        * src/main.c (fatal, warn, berror):
+        Make error messages standard.
+        (toomany): Improve error message text.
+
+        * src/LR0.c, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/lalr.c, src/lex.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/symtab.c:
+        new.h renamed to alloc.h.
+
+1997-06-18  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in: new.h renamed to alloc.h.
+
+1997-05-24  Richard Stallman  <rms@gnu.org>
+
+        * src/lex.c (literalchar):
+        Fix the code for escaping \, " and '.
+
+        (lex): Avoid trouble when there are many chars
+        to discard in a char literal with just several chars in it.
+
+1997-05-17  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        Use malloc, if using alloca is troublesome.
+        (YYSTACK_USE_ALLOCA): New flag macro.
+        Define it for some systems and compilers.
+        (YYSTACK_ALLOC): New macro.
+        (yyparse): Use YYSTACK_ALLOC to allocate stack.
+        If it was malloc'd, free it.
+
+1997-05-17  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        Use malloc, if using alloca is troublesome.
+        (YYSTACK_USE_ALLOCA): New flag macro.
+        Define it for some systems and compilers.
+        (YYSTACK_ALLOC): New macro.
+        (yyparse): Use YYSTACK_ALLOC to allocate stack.
+        If it was malloc'd, free it.
+
+1997-04-23  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        (alloca) [__hpux]: Always define as __builtin_alloca.
+
+1997-04-23  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        (alloca) [__hpux]: Always define as __builtin_alloca.
+
+1997-04-22  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        [__hpux]: Include alloca.h (right for HPUX 10)
+        instead of declaring alloca (right for HPUX 9).
+
+        * src/bison.s1 (__yy_memcpy):
+        Declare arg `count' as unsigned int.
+        (yyparse): Cast third arg to __yy_memcpy to unsigned int.
+
+1997-04-22  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        [__hpux]: Include alloca.h (right for HPUX 10)
+        instead of declaring alloca (right for HPUX 9).
+
+        * bison.simple (__yy_memcpy):
+        Declare arg `count' as unsigned int.
+        (yyparse): Cast third arg to __yy_memcpy to unsigned int.
+
+1997-01-03  Richard Stallman  <rms@gnu.org>
+
+        * src/allocate.c: [__STDC__ or _MSC_VER]:
+        Declare calloc and realloc to return void *.
+
+1997-01-02  Richard Stallman  <rms@gnu.org>
+
+        * src/system.h:
+        [_MSC_VER]: Include stdlib.h and process.h.
+        [_MSC_VER] (getpid): Define as macro--translate it to _getpid.
+
+        * src/main.c (main): Return FAILURE as a value.
+        (printable_version): Declare arg as int, not char.
+
+1997-01-02  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in (dist):
+        Explicitly check for symlinks, and copy them.
+
+1996-12-19  Richard Stallman  <rms@gnu.org>
+
+        * src/files.c:
+        [_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
+
+1996-12-18  Paul Eggert  <eggert@gnu.org>
+
+        * src/bison.s1 (yyparse):
+        If __GNUC__ and YYPARSE_PARAM are both defined,
+        declare yyparse to have a void * argument.
+
+1996-12-18  Paul Eggert  <eggert@gnu.org>
+
+        * bison.simple (yyparse):
+        If __GNUC__ and YYPARSE_PARAM are both defined,
+        declare yyparse to have a void * argument.
+
+1996-12-17  Richard Stallman  <rms@gnu.org>
+
+        * src/reduce.c (nbits): Add some casts.
+
+1996-08-12  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: Test _MSDOS as well as _MSDOS_.
+
+1996-08-12  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: Test _MSDOS as well as _MSDOS_.
+
+1996-07-31  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        [__sun && __i386]: Include alloca.h.
+
+1996-07-31  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        [__sun && __i386]: Include alloca.h.
+
+1996-07-30  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: Comment change.
+
+        * src/bison.s1: Test _MSDOS_, not MSDOS.
+
+1996-07-30  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: Comment change.
+
+        * bison.simple: Test _MSDOS_, not MSDOS.
+
+1996-06-01  Richard Stallman  <rms@gnu.org>
+
+        * src/reduce.c, src/reader.c, src/print.c, src/output.c, src/nullable.c, src/lex.c, src/lalr.c, src/getargs.c, src/derives.c, src/conflicts.c, src/closure.c, src/allocate.c:
+        Insert `_' macro around many string constants.
+
+        * src/main.c:
+        Insert `_' macro around many string constants.
+
+        (main): Call setlocale, bindtextdomain and textdomain.
+
+        * src/system.h: [HAVE_LOCALE_H]: Include locale.h.
+        [! HAVE_LOCALE_H] (setlocale): Define as no-op.
+        [ENABLE_NLS]: Include libintl.h.
+        [ENABLE_NLS] (gettext): Define.
+        [! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
+        (N_, PACKAGE, LOCALEDIR): New macros.
+
+1996-06-01  Richard Stallman  <rms@gnu.org>
+
+        * POTFILES.in: New file.
+
+        * Makefile.in (allocate.o):
+        Define target explicitly.
+
+        * Makefile.in (CFLAGS): Set to @CFLAGS@.
+        (LDFLAGS): Set to @LDFLAGS@.
+        (configure): Run autoconf only if preceding `cd' succeeds.
+        (bison.s1): Redirect output to temporary file then move the
+        temporary to the target, rather than redirecting directly to bison.s1.
+        (clean): Remove config.status and config.log.
+        (distclean): Don't remove config.status here.
+
+1996-05-12  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
+
+1996-05-12  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        (__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
+
+1996-05-11  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1 (__yy_memcpy):
+        Really reorder the args, as was supposedly done on Feb 14 1995.
+        (yyparse): Calls changed accordingly.
+
+1996-05-11  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in (dist): Don't use $(srcdir).
+
+        * bison.simple (__yy_memcpy):
+        Really reorder the args, as was supposedly done on Feb 14 1995.
+        (yyparse): Calls changed accordingly.
+
+1996-01-27  Richard Stallman  <rms@gnu.org>
+
+        * src/output.c (output_rule_data):
+        Test YYERROR_VERBOSE in the conditional
+        around the definition of ttyname.
+
+1995-12-29  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        Fix line numbers in #line commands.
+
+1995-12-29  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        Fix line numbers in #line commands.
+
+1995-12-27  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1 (YYPARSE_PARAM_DECL):
+        In C++, make it always null.
+        (YYPARSE_PARAM_ARG): New macro.
+        (yyparse): Use YYPARSE_PARAM_ARG.
+
+1995-12-27  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple (YYPARSE_PARAM_DECL):
+        In C++, make it always null.
+        (YYPARSE_PARAM_ARG): New macro.
+        (yyparse): Use YYPARSE_PARAM_ARG.
+
+1995-11-29  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo:
+        Describe literal string tokens, %raw, %no_lines, %token_table.
+
+1995-11-29  Daniel Hagerty  <hag@gnu.org>
+
+        * doc/bison.texinfo: Fixed update date
+
+1995-10-16  Richard Stallman  <rms@gnu.org>
+
+        * src/version.c: Version 1.25.
+
+1995-10-16  Richard Stallman  <rms@gnu.org>
+
+        * NEWS: *** empty log message ***
+
+1995-10-16  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.1, doc/bison.rnh:
+        Add new options.
+
+1995-10-15  Richard Stallman  <rms@gnu.org>
+
+        * src/vmsgetargs.c, src/getargs.c:
+        Added -n, -k, and -raw switches.
+        (noparserflag, toknumflag, rawtoknumflag): New variables.
+
+        * src/symtab.h (SALIAS):
+        New #define for adding aliases to %token.
+        (struct bucket): Added `alias' field.
+
+        * src/reduce.c (reduce_grammar):
+        Revise error message.
+        (print_notices): Remove final `.' from error message.
+
+        * src/reader.c (reader_output_yylsp):
+        New function.
+        (readgram): Use `#if 0' around code that accepted %command
+        inside grammar rules:  The documentation doesn't allow it,
+        and it will fail since the %command processors scan for the next %.
+        (parse_token_decl):  Extended the %token
+        declaration to allow a multi-character symbol as an alias.
+        (parse_thong_decl): New function.
+        (read_declarations): Added %thong declarations.
+        (read_declarations): Handle NOOP to deal with allowing
+        % declarations as another means to specify the flags.
+        (readgram): Allow %prec prior to semantics embedded in a rule.
+        (skip_to_char, read_declarations, copy_definition)
+        (parse_token_decl, parse_start_decl, parse_type_decl)
+        (parse_assoc_decl, parse_union_decl, parse_expect_decl)
+        (get_type_name, copy_guard, copy_action, readgram)
+        (get_type, packsymbols):  Revised most error messages.
+        Changed `fatal' to `warnxxx' to avoid aborting for error.
+        Revised and use multiple warnxxx functions to avoid using VARARGS1.
+        (read_declarations): Improve the error message for
+        an invalid character.  Do not abort.
+        (read_declarations, copy_guard, copy_action): Use
+        printable_version to avoid unprintable characters in printed output.
+        (parse_expect_decl): Error if argument to %expect exceeds 10 digits.
+        (parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
+        Allow the type of a non-terminal can be given
+        more than once, as long as all specifications give the same type.
+
+        * src/output.c:
+        (output_headers, output_trailers, output, output_gram)
+        (output_rule_data): Implement noparserflag variable.
+        Implement toknumflag variable.
+        (output): Call reader_output_yylsp to output LTYPESTR.
+
+        * src/main.c (main):
+         If reader sees an error, don't process the grammar.
+        (fatals): Updated to not use VARARGS1.
+        (printable_version, int_to_string, warn, warni, warns, warnss)
+        (warnsss): New error reporting functions.  Avoid abort for error.
+
+        * src/lex.h:
+        Added THONG and NOOP for alias processing.
+        Added SETOPT for the new code that allows setting options with %flags.
+
+        * src/lex.c:
+        Include getopt.h.  Add some extern decls.
+        (safegetc): New function to deal with EOF gracefully.
+        (literalchar); new function to deal with reading \ escapes.
+        (lex): Use literalchar.
+        (lex): Implemented "..." tokens.
+        (literalchar, lex, parse_percent_token): Made tokenbuffer
+        always contain the token.  This includes growing the token
+        buffer while reading an integer.
+        (parse_percent_token): Replaced if-else statement with percent_table.
+        (parse_percent_token): Added % declarations as another
+        way to specify the flags -n, -l, and -r.  Also added hooks for
+        -d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
+        major changes to files.c.
+        (lex) Retain in the incoming stream a character following
+        an incorrect '/'.
+        (skip_white_space, lex):  Revised most error messages
+        and changed fatal to warn to avoid aborting.
+        (percent_table):  Added %thong declarations.
+
+        * src/gram.h: Comment changes.
+
+        * src/files.c (openfiles, open_extra_files, done):
+         Add faction flag
+        and actfile file.  Handle noparserflag.  Both for -n switch.
+
+        * src/conflicts.c (resolve_sr_conflict):
+        Remove use of alloca.
+
+1995-06-01  Jim Meyering  <meyering@gnu.org>
+
+        * doc/bison.texinfo: *** empty log message ***
+
+1995-05-06  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: Comment change.
+
+1995-05-06  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: Comment change.
+
+1995-05-03  Richard Stallman  <rms@gnu.org>
+
+        * src/version.c: Version now 1.24.
+
+        * src/bison.s1: Change distribution terms.
+
+        * src/version.c: Version now 1.23.
+
+1995-05-03  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo:
+        Rewrite "Conditions for Using Bison".
+        Update version to 1.24.
+
+1995-05-03  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: Change distribution terms.
+
+1995-02-23  Richard Stallman  <rms@gnu.org>
+
+        * src/files.c: Test __VMS_POSIX as well as VMS.
+
+1995-02-14  Jim Meyering  <meyering@gnu.org>
+
+        * src/bison.s1 (__yy_memcpy):
+        Renamed from __yy_bcopy to avoid
+        confusion.  Reverse FROM and TO arguments to be consistent with
+        those of memcpy.
+
+1995-02-14  Jim Meyering  <meyering@gnu.org>
+
+        * bison.simple (__yy_memcpy):
+        Renamed from __yy_bcopy to avoid
+        confusion.  Reverse FROM and TO arguments to be consistent with
+        those of memcpy.
+
+1994-11-10  David J. MacKenzie  <djm@gnu.org>
+
+        * NEWS: reformat
+
+        * NEWS: New file.
+
+        * Makefile.in (DISTFILES): Include NEWS.
+
+        * Makefile.in (DISTFILES):
+        Include install-sh, not install.sh.
+
+        * configure.in: Update to Autoconf v2 macro names.
+
+1994-10-05  David J. MacKenzie  <djm@gnu.org>
+
+        * Makefile.in: fix typo
+
+        * Makefile.in (prefix, exec_prefix):
+        Let configure set them.
+
+1994-09-28  David J. MacKenzie  <djm@gnu.org>
+
+        * Makefile.in: Set datadir to $(prefix)/share.
+
+1994-09-15  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1:
+        Update copyright notice and GPL version.
+
+1994-09-15  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple:
+        Update copyright notice and GPL version.
+
+1994-07-12  Richard Stallman  <rms@gnu.org>
+
+        * src/reduce.c, src/reader.c:
+        entered into RCS
+
+1994-05-05  David J. MacKenzie  <djm@gnu.org>
+
+        * Makefile.in: entered into RCS
+
+1994-03-26  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: entered into RCS
+
+1994-03-26  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: entered into RCS
+
+1994-03-25  Richard Stallman  <rms@gnu.org>
+
+        * src/main.c: entered into RCS
+
+1994-03-24  Richard Stallman  <rms@gnu.org>
+
+        * src/conflicts.c: entered into RCS
+
+1994-01-02  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-11-21  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-11-21  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo: entered into RCS
+
+        * doc/bison.texinfo: *** empty log message ***
+
+1993-11-21  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-10-25  David J. MacKenzie  <djm@gnu.org>
+
+        * doc/bison.texinfo: *** empty log message ***
+
+1993-10-19  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-10-19  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-10-14  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-10-14  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-09-14  David J. MacKenzie  <djm@gnu.org>
+
+        * doc/bison.texinfo: *** empty log message ***
+
+1993-09-13  Noah Friedman  <friedman@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-09-10  Richard Stallman  <rms@gnu.org>
+
+        * src/conflicts.c: *** empty log message ***
+
+        * src/system.h: entered into RCS
+
+1993-09-10  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.1: entered into RCS
+
+1993-09-06  Noah Friedman  <friedman@gnu.org>
+
+        * src/version.c: entered into RCS
+
+1993-09-06  Noah Friedman  <friedman@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-07-30  David J. MacKenzie  <djm@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-07-24  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-07-24  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-07-08  David J. MacKenzie  <djm@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-07-04  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-07-04  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-06-26  David J. MacKenzie  <djm@gnu.org>
+
+        * src/getargs.c: entered into RCS
+
+1993-06-26  David J. MacKenzie  <djm@gnu.org>
+
+        * doc/bison.texinfo: *** empty log message ***
+
+        * doc/bison.1: New file.
+
+1993-06-25  Richard Stallman  <rms@gnu.org>
+
+        * src/getargs.c: New file.
+
+1993-06-16  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: *** empty log message ***
+
+1993-06-16  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: *** empty log message ***
+
+1993-06-03  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.s1: New file.
+
+1993-06-03  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo: *** empty log message ***
+
+1993-06-03  Richard Stallman  <rms@gnu.org>
+
+        * bison.simple: New file.
+
+1993-05-19  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.texinfo: New file.
+
+1993-05-07  Noah Friedman  <friedman@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-04-28  Noah Friedman  <friedman@gnu.org>
+
+        * src/reader.c: *** empty log message ***
+
+1993-04-23  Noah Friedman  <friedman@gnu.org>
+
+        * src/alloc.h: entered into RCS
+
+1993-04-20  David J. MacKenzie  <djm@gnu.org>
+
+        * src/version.c: *** empty log message ***
+
+        * src/files.c, src/allocate.c:
+        entered into RCS
+
+        * src/reader.c: *** empty log message ***
+
+        * src/lex.c: entered into RCS
+
+        * src/conflicts.c: New file.
+
+        * src/symtab.c: entered into RCS
+
+        * src/alloc.h: New file.
+
+        * src/LR0.c: entered into RCS
+
+1993-04-18  Noah Friedman  <friedman@gnu.org>
+
+        * src/reader.c: New file.
+
+        * src/version.c: *** empty log message ***
+
+1993-04-18  Noah Friedman  <friedman@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-04-17  Noah Friedman  <friedman@gnu.org>
+
+        * Makefile.in: *** empty log message ***
+
+1993-04-15  Richard Stallman  <rms@gnu.org>
+
+        * src/main.c, src/files.c:
+        New file.
+
+1993-04-15  Noah Friedman  <friedman@gnu.org>
+
+        * configure.in: entered into RCS
+
+        * configure.in: *** empty log message ***
+
+        * configure.in: New file.
+
+1993-04-14  Richard Stallman  <rms@gnu.org>
+
+        * Makefile.in: New file.
+
+1993-04-13  Richard Stallman  <rms@gnu.org>
+
+        * src/version.c: New file.
+
+1993-03-25  Richard Stallman  <rms@gnu.org>
+
+        * src/output.c: entered into RCS
+
+1992-09-25  Richard Stallman  <rms@gnu.org>
+
+        * configure.bat: entered into RCS
+
+1992-06-22  Richard Stallman  <rms@gnu.org>
+
+        * src/vmsgetargs.c: entered into RCS
+
+1992-06-22  Richard Stallman  <rms@gnu.org>
+
+        * doc/bison.rnh: entered into RCS
+
+1992-04-20  David J. MacKenzie  <djm@gnu.org>
+
+        * README: entered into RCS
+
+1992-01-22  Richard Stallman  <rms@gnu.org>
+
+        * src/machine.h: entered into RCS
+
+1991-12-21  Richard Stallman  <rms@gnu.org>
+
+        * src/lalr.c, src/closure.c:
+        entered into RCS
+
+1991-12-20  Richard Stallman  <rms@gnu.org>
+
+        * src/state.h: entered into RCS
+
+1991-12-18  Richard Stallman  <rms@gnu.org>
+
+        * src/print.c, src/nullable.c, src/derives.c:
+        entered into RCS
+
+1991-11-03  David J. MacKenzie  <djm@gnu.org>
+
+        * src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
+        entered into RCS
+
+1988-09-09  Richard Stallman  <rms@gnu.org>
+
+        * src/bison.hairy: entered into RCS
+
+1987-12-16  Richard Stallman  <rms@gnu.org>
+
+        * REFERENCES: entered into RCS
+
+
+        -----
+
+        Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
+        1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+        Free Software Foundation, Inc.
+
+        Copying and distribution of this file, with or without
+        modification, are permitted provided the copyright notice and this
+        notice are preserved.