1 # lib-prefix.m4 serial 5 (gettext-0.15)
2 dnl Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009 Free Software
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
10 dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
11 dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
12 dnl require excessive bracketing.
13 ifdef([AC_HELP_STRING],
14 [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
15 [AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
17 dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
18 dnl to access previously installed libraries. The basic assumption is that
19 dnl a user will want packages to use other packages he previously installed
20 dnl with the same --prefix option.
21 dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
22 dnl libraries, but is otherwise very convenient.
23 AC_DEFUN([AC_LIB_PREFIX],
25 AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
26 AC_REQUIRE([AC_PROG_CC])
27 AC_REQUIRE([AC_CANONICAL_HOST])
28 AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
29 AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
30 dnl By default, look in $includedir and $libdir.
32 AC_LIB_WITH_FINAL_PREFIX([
33 eval additional_includedir=\"$includedir\"
34 eval additional_libdir=\"$libdir\"
36 AC_LIB_ARG_WITH([lib-prefix],
37 [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
38 --without-lib-prefix don't search for libraries in includedir and libdir],
40 if test "X$withval" = "Xno"; then
43 if test "X$withval" = "X"; then
44 AC_LIB_WITH_FINAL_PREFIX([
45 eval additional_includedir=\"$includedir\"
46 eval additional_libdir=\"$libdir\"
49 additional_includedir="$withval/include"
50 additional_libdir="$withval/$acl_libdirstem"
54 if test $use_additional = yes; then
55 dnl Potentially add $additional_includedir to $CPPFLAGS.
57 dnl 1. if it's the standard /usr/include,
58 dnl 2. if it's already present in $CPPFLAGS,
59 dnl 3. if it's /usr/local/include and we are using GCC on Linux,
60 dnl 4. if it doesn't exist as a directory.
61 if test "X$additional_includedir" != "X/usr/include"; then
63 for x in $CPPFLAGS; do
64 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
65 if test "X$x" = "X-I$additional_includedir"; then
70 if test -z "$haveit"; then
71 if test "X$additional_includedir" = "X/usr/local/include"; then
72 if test -n "$GCC"; then
74 linux* | gnu* | k*bsd*-gnu) haveit=yes;;
78 if test -z "$haveit"; then
79 if test -d "$additional_includedir"; then
80 dnl Really add $additional_includedir to $CPPFLAGS.
81 CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
86 dnl Potentially add $additional_libdir to $LDFLAGS.
88 dnl 1. if it's the standard /usr/lib,
89 dnl 2. if it's already present in $LDFLAGS,
90 dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
91 dnl 4. if it doesn't exist as a directory.
92 if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
95 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
96 if test "X$x" = "X-L$additional_libdir"; then
101 if test -z "$haveit"; then
102 if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
103 if test -n "$GCC"; then
109 if test -z "$haveit"; then
110 if test -d "$additional_libdir"; then
111 dnl Really add $additional_libdir to $LDFLAGS.
112 LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
120 dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
121 dnl acl_final_exec_prefix, containing the values to which $prefix and
122 dnl $exec_prefix will expand at the end of the configure script.
123 AC_DEFUN([AC_LIB_PREPARE_PREFIX],
125 dnl Unfortunately, prefix and exec_prefix get only finally determined
126 dnl at the end of configure.
127 if test "X$prefix" = "XNONE"; then
128 acl_final_prefix="$ac_default_prefix"
130 acl_final_prefix="$prefix"
132 if test "X$exec_prefix" = "XNONE"; then
133 acl_final_exec_prefix='${prefix}'
135 acl_final_exec_prefix="$exec_prefix"
137 acl_save_prefix="$prefix"
138 prefix="$acl_final_prefix"
139 eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
140 prefix="$acl_save_prefix"
143 dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
144 dnl variables prefix and exec_prefix bound to the values they will have
145 dnl at the end of the configure script.
146 AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
148 acl_save_prefix="$prefix"
149 prefix="$acl_final_prefix"
150 acl_save_exec_prefix="$exec_prefix"
151 exec_prefix="$acl_final_exec_prefix"
153 exec_prefix="$acl_save_exec_prefix"
154 prefix="$acl_save_prefix"
157 dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
158 dnl the basename of the libdir, either "lib" or "lib64".
159 AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
161 dnl There is no formal standard regarding lib and lib64. The current
162 dnl practice is that on a system supporting 32-bit and 64-bit instruction
163 dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit
164 dnl libraries go under $prefix/lib. We determine the compiler's default
165 dnl mode by looking at the compiler's library search path. If at least
166 dnl of its elements ends in /lib64 or points to a directory whose absolute
167 dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the
168 dnl default, namely "lib".
170 searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
171 if test -n "$searchpath"; then
172 acl_save_IFS="${IFS= }"; IFS=":"
173 for searchdir in $searchpath; do
174 if test -d "$searchdir"; then
176 */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
177 *) searchdir=`cd "$searchdir" && pwd`
179 */lib64 ) acl_libdirstem=lib64 ;;