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| 1 # lib-prefix.m4 serial 6 (gettext-0.18) |
| 2 dnl Copyright (C) 2001-2005, 2008 Free Software Foundation, Inc. |
| 3 dnl This file is free software; the Free Software Foundation |
| 4 dnl gives unlimited permission to copy and/or distribute it, |
| 5 dnl with or without modifications, as long as this notice is preserved. |
| 6 |
| 7 dnl From Bruno Haible. |
| 8 |
| 9 dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and |
| 10 dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't |
| 11 dnl require excessive bracketing. |
| 12 ifdef([AC_HELP_STRING], |
| 13 [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], |
| 14 [AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) |
| 15 |
| 16 dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed |
| 17 dnl to access previously installed libraries. The basic assumption is that |
| 18 dnl a user will want packages to use other packages he previously installed |
| 19 dnl with the same --prefix option. |
| 20 dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate |
| 21 dnl libraries, but is otherwise very convenient. |
| 22 AC_DEFUN([AC_LIB_PREFIX], |
| 23 [ |
| 24 AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) |
| 25 AC_REQUIRE([AC_PROG_CC]) |
| 26 AC_REQUIRE([AC_CANONICAL_HOST]) |
| 27 AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
| 28 AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) |
| 29 dnl By default, look in $includedir and $libdir. |
| 30 use_additional=yes |
| 31 AC_LIB_WITH_FINAL_PREFIX([ |
| 32 eval additional_includedir=\"$includedir\" |
| 33 eval additional_libdir=\"$libdir\" |
| 34 ]) |
| 35 AC_LIB_ARG_WITH([lib-prefix], |
| 36 [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib |
| 37 --without-lib-prefix don't search for libraries in includedir and libdir], |
| 38 [ |
| 39 if test "X$withval" = "Xno"; then |
| 40 use_additional=no |
| 41 else |
| 42 if test "X$withval" = "X"; then |
| 43 AC_LIB_WITH_FINAL_PREFIX([ |
| 44 eval additional_includedir=\"$includedir\" |
| 45 eval additional_libdir=\"$libdir\" |
| 46 ]) |
| 47 else |
| 48 additional_includedir="$withval/include" |
| 49 additional_libdir="$withval/$acl_libdirstem" |
| 50 fi |
| 51 fi |
| 52 ]) |
| 53 if test $use_additional = yes; then |
| 54 dnl Potentially add $additional_includedir to $CPPFLAGS. |
| 55 dnl But don't add it |
| 56 dnl 1. if it's the standard /usr/include, |
| 57 dnl 2. if it's already present in $CPPFLAGS, |
| 58 dnl 3. if it's /usr/local/include and we are using GCC on Linux, |
| 59 dnl 4. if it doesn't exist as a directory. |
| 60 if test "X$additional_includedir" != "X/usr/include"; then |
| 61 haveit= |
| 62 for x in $CPPFLAGS; do |
| 63 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 64 if test "X$x" = "X-I$additional_includedir"; then |
| 65 haveit=yes |
| 66 break |
| 67 fi |
| 68 done |
| 69 if test -z "$haveit"; then |
| 70 if test "X$additional_includedir" = "X/usr/local/include"; then |
| 71 if test -n "$GCC"; then |
| 72 case $host_os in |
| 73 linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
| 74 esac |
| 75 fi |
| 76 fi |
| 77 if test -z "$haveit"; then |
| 78 if test -d "$additional_includedir"; then |
| 79 dnl Really add $additional_includedir to $CPPFLAGS. |
| 80 CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" |
| 81 fi |
| 82 fi |
| 83 fi |
| 84 fi |
| 85 dnl Potentially add $additional_libdir to $LDFLAGS. |
| 86 dnl But don't add it |
| 87 dnl 1. if it's the standard /usr/lib, |
| 88 dnl 2. if it's already present in $LDFLAGS, |
| 89 dnl 3. if it's /usr/local/lib and we are using GCC on Linux, |
| 90 dnl 4. if it doesn't exist as a directory. |
| 91 if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then |
| 92 haveit= |
| 93 for x in $LDFLAGS; do |
| 94 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
| 95 if test "X$x" = "X-L$additional_libdir"; then |
| 96 haveit=yes |
| 97 break |
| 98 fi |
| 99 done |
| 100 if test -z "$haveit"; then |
| 101 if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then |
| 102 if test -n "$GCC"; then |
| 103 case $host_os in |
| 104 linux*) haveit=yes;; |
| 105 esac |
| 106 fi |
| 107 fi |
| 108 if test -z "$haveit"; then |
| 109 if test -d "$additional_libdir"; then |
| 110 dnl Really add $additional_libdir to $LDFLAGS. |
| 111 LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" |
| 112 fi |
| 113 fi |
| 114 fi |
| 115 fi |
| 116 fi |
| 117 ]) |
| 118 |
| 119 dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, |
| 120 dnl acl_final_exec_prefix, containing the values to which $prefix and |
| 121 dnl $exec_prefix will expand at the end of the configure script. |
| 122 AC_DEFUN([AC_LIB_PREPARE_PREFIX], |
| 123 [ |
| 124 dnl Unfortunately, prefix and exec_prefix get only finally determined |
| 125 dnl at the end of configure. |
| 126 if test "X$prefix" = "XNONE"; then |
| 127 acl_final_prefix="$ac_default_prefix" |
| 128 else |
| 129 acl_final_prefix="$prefix" |
| 130 fi |
| 131 if test "X$exec_prefix" = "XNONE"; then |
| 132 acl_final_exec_prefix='${prefix}' |
| 133 else |
| 134 acl_final_exec_prefix="$exec_prefix" |
| 135 fi |
| 136 acl_save_prefix="$prefix" |
| 137 prefix="$acl_final_prefix" |
| 138 eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" |
| 139 prefix="$acl_save_prefix" |
| 140 ]) |
| 141 |
| 142 dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the |
| 143 dnl variables prefix and exec_prefix bound to the values they will have |
| 144 dnl at the end of the configure script. |
| 145 AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], |
| 146 [ |
| 147 acl_save_prefix="$prefix" |
| 148 prefix="$acl_final_prefix" |
| 149 acl_save_exec_prefix="$exec_prefix" |
| 150 exec_prefix="$acl_final_exec_prefix" |
| 151 $1 |
| 152 exec_prefix="$acl_save_exec_prefix" |
| 153 prefix="$acl_save_prefix" |
| 154 ]) |
| 155 |
| 156 dnl AC_LIB_PREPARE_MULTILIB creates |
| 157 dnl - a variable acl_libdirstem, containing the basename of the libdir, either |
| 158 dnl "lib" or "lib64" or "lib/64", |
| 159 dnl - a variable acl_libdirstem2, as a secondary possible value for |
| 160 dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or |
| 161 dnl "lib/amd64". |
| 162 AC_DEFUN([AC_LIB_PREPARE_MULTILIB], |
| 163 [ |
| 164 dnl There is no formal standard regarding lib and lib64. |
| 165 dnl On glibc systems, the current practice is that on a system supporting |
| 166 dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
| 167 dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine |
| 168 dnl the compiler's default mode by looking at the compiler's library search |
| 169 dnl path. If at least one of its elements ends in /lib64 or points to a |
| 170 dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. |
| 171 dnl Otherwise we use the default, namely "lib". |
| 172 dnl On Solaris systems, the current practice is that on a system supporting |
| 173 dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under |
| 174 dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or |
| 175 dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. |
| 176 AC_REQUIRE([AC_CANONICAL_HOST]) |
| 177 acl_libdirstem=lib |
| 178 acl_libdirstem2= |
| 179 case "$host_os" in |
| 180 solaris*) |
| 181 dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Develope
r's Guide > The Development Environment |
| 182 dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>. |
| 183 dnl "Portable Makefiles should refer to any library directories using the
64 symbolic link." |
| 184 dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the |
| 185 dnl symlink is missing, so we set acl_libdirstem2 too. |
| 186 AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], |
| 187 [AC_EGREP_CPP([sixtyfour bits], [ |
| 188 #ifdef _LP64 |
| 189 sixtyfour bits |
| 190 #endif |
| 191 ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) |
| 192 ]) |
| 193 if test $gl_cv_solaris_64bit = yes; then |
| 194 acl_libdirstem=lib/64 |
| 195 case "$host_cpu" in |
| 196 sparc*) acl_libdirstem2=lib/sparcv9 ;; |
| 197 i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; |
| 198 esac |
| 199 fi |
| 200 ;; |
| 201 *) |
| 202 searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^
libraries: ,,p' | sed -e 's,^=,,'` |
| 203 if test -n "$searchpath"; then |
| 204 acl_save_IFS="${IFS= }"; IFS=":" |
| 205 for searchdir in $searchpath; do |
| 206 if test -d "$searchdir"; then |
| 207 case "$searchdir" in |
| 208 */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; |
| 209 *) searchdir=`cd "$searchdir" && pwd` |
| 210 case "$searchdir" in |
| 211 */lib64 ) acl_libdirstem=lib64 ;; |
| 212 esac ;; |
| 213 esac |
| 214 fi |
| 215 done |
| 216 IFS="$acl_save_IFS" |
| 217 fi |
| 218 ;; |
| 219 esac |
| 220 test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" |
| 221 ]) |
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