1 # lib-prefix.m4 serial 7 (gettext-0.18)
2 dnl Copyright (C) 2001-2005, 2008-2010 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.
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])])])
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],
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 $libdir.
31 AC_LIB_WITH_FINAL_PREFIX([
32 eval additional_includedir=\"$includedir\"
33 eval additional_libdir=\"$libdir\"
35 AC_LIB_ARG_WITH([lib-prefix],
36 [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
37 --without-lib-prefix don't search for libraries in includedir and libdir],
39 if test "X$withval" = "Xno"; then
42 if test "X$withval" = "X"; then
43 AC_LIB_WITH_FINAL_PREFIX([
44 eval additional_includedir=\"$includedir\"
45 eval additional_libdir=\"$libdir\"
48 additional_includedir="$withval/include"
49 additional_libdir="$withval/$acl_libdirstem"
53 if test $use_additional = yes; then
54 dnl Potentially add $additional_includedir to $CPPFLAGS.
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
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
69 if test -z "$haveit"; then
70 if test "X$additional_includedir" = "X/usr/local/include"; then
71 if test -n "$GCC"; then
73 linux* | gnu* | k*bsd*-gnu) haveit=yes;;
77 if test -z "$haveit"; then
78 if test -d "$additional_includedir"; then
79 dnl Really add $additional_includedir to $CPPFLAGS.
80 CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
85 dnl Potentially add $additional_libdir to $LDFLAGS.
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/$acl_libdirstem"; then
94 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
95 if test "X$x" = "X-L$additional_libdir"; then
100 if test -z "$haveit"; then
101 if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
102 if test -n "$GCC"; then
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"
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 $exec_prefix will expand at the end of the configure script.
122 AC_DEFUN([AC_LIB_PREPARE_PREFIX],
124 dnl Unfortunately, prefix and exec_prefix get only finally determined
125 dnl at the end of configure.
126 if test "X$prefix" = "XNONE"; then
127 acl_final_prefix="$ac_default_prefix"
129 acl_final_prefix="$prefix"
131 if test "X$exec_prefix" = "XNONE"; then
132 acl_final_exec_prefix='${prefix}'
134 acl_final_exec_prefix="$exec_prefix"
136 acl_save_prefix="$prefix"
137 prefix="$acl_final_prefix"
138 eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
139 prefix="$acl_save_prefix"
142 dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
143 dnl variables prefix and exec_prefix bound to the values they will have
144 dnl at the end of the configure script.
145 AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
147 acl_save_prefix="$prefix"
148 prefix="$acl_final_prefix"
149 acl_save_exec_prefix="$exec_prefix"
150 exec_prefix="$acl_final_exec_prefix"
152 exec_prefix="$acl_save_exec_prefix"
153 prefix="$acl_save_prefix"
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
162 AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
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])
181 dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer'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], [
191 ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no])
193 if test $gl_cv_solaris_64bit = yes; then
194 acl_libdirstem=lib/64
196 sparc*) acl_libdirstem2=lib/sparcv9 ;;
197 i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
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
208 */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
210 # Better ignore directories of this form. They are misleading.
212 *) searchdir=`cd "$searchdir" && pwd`
214 */lib64 ) acl_libdirstem=lib64 ;;
223 test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"