Index: bison/src/bison/2.4.1/bison-2.4.1-src/m4/wctype.m4 |
=================================================================== |
--- bison/src/bison/2.4.1/bison-2.4.1-src/m4/wctype.m4 (revision 0) |
+++ bison/src/bison/2.4.1/bison-2.4.1-src/m4/wctype.m4 (revision 0) |
@@ -0,0 +1,74 @@ |
+# wctype.m4 serial 2 |
+ |
+dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it. |
+ |
+dnl Copyright (C) 2006-2008 Free Software Foundation, Inc. |
+dnl This file is free software; the Free Software Foundation |
+dnl gives unlimited permission to copy and/or distribute it, |
+dnl with or without modifications, as long as this notice is preserved. |
+ |
+dnl Written by Paul Eggert. |
+ |
+AC_DEFUN([gl_WCTYPE_H], |
+[ |
+ AC_REQUIRE([AC_PROG_CC]) |
+ AC_CHECK_FUNCS_ONCE([iswcntrl]) |
+ if test $ac_cv_func_iswcntrl = yes; then |
+ HAVE_ISWCNTRL=1 |
+ else |
+ HAVE_ISWCNTRL=0 |
+ fi |
+ AC_SUBST([HAVE_ISWCNTRL]) |
+ AC_CHECK_HEADERS_ONCE([wctype.h]) |
+ AC_REQUIRE([AC_C_INLINE]) |
+ |
+ AC_REQUIRE([gt_TYPE_WINT_T]) |
+ if test $gt_cv_c_wint_t = yes; then |
+ HAVE_WINT_T=1 |
+ else |
+ HAVE_WINT_T=0 |
+ fi |
+ AC_SUBST([HAVE_WINT_T]) |
+ |
+ WCTYPE_H=wctype.h |
+ if test $ac_cv_header_wctype_h = yes; then |
+ if test $ac_cv_func_iswcntrl = yes; then |
+ dnl Linux libc5 has an iswprint function that returns 0 for all arguments. |
+ dnl The other functions are likely broken in the same way. |
+ AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], |
+ [ |
+ AC_TRY_RUN([#include <stddef.h> |
+ #include <stdio.h> |
+ #include <time.h> |
+ #include <wchar.h> |
+ #include <wctype.h> |
+ int main () { return iswprint ('x') == 0; }], |
+ [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], |
+ [AC_TRY_COMPILE([#include <stdlib.h> |
+ #if __GNU_LIBRARY__ == 1 |
+ Linux libc5 i18n is broken. |
+ #endif], [], |
+ [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no]) |
+ ]) |
+ ]) |
+ if test $gl_cv_func_iswcntrl_works = yes; then |
+ WCTYPE_H= |
+ fi |
+ fi |
+ dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty, |
+ dnl for the benefit of builds from non-distclean directories. |
+ gl_CHECK_NEXT_HEADERS([wctype.h]) |
+ HAVE_WCTYPE_H=1 |
+ else |
+ HAVE_WCTYPE_H=0 |
+ fi |
+ AC_SUBST([HAVE_WCTYPE_H]) |
+ AC_SUBST([WCTYPE_H]) |
+ |
+ if test "$gl_cv_func_iswcntrl_works" = no; then |
+ REPLACE_ISWCNTRL=1 |
+ else |
+ REPLACE_ISWCNTRL=0 |
+ fi |
+ AC_SUBST([REPLACE_ISWCNTRL]) |
+]) |