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1# lib-prefix.m4 serial 3 (gettext-0.13)
2dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
3dnl This file is free software, distributed under the terms of the GNU
4dnl General Public License. As a special exception to the GNU General
5dnl Public License, this file may be distributed as part of a program
6dnl that contains a configuration script generated by Autoconf, under
7dnl the same distribution terms as the rest of that program.
8
9dnl From Bruno Haible.
10
11dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
12dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
13dnl require excessive bracketing.
14ifdef([AC_HELP_STRING],
15[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
16[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
17
18dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
19dnl to access previously installed libraries. The basic assumption is that
20dnl a user will want packages to use other packages he previously installed
21dnl with the same --prefix option.
22dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
23dnl libraries, but is otherwise very convenient.
24AC_DEFUN([AC_LIB_PREFIX],
25[
26 AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
27 AC_REQUIRE([AC_PROG_CC])
28 AC_REQUIRE([AC_CANONICAL_HOST])
29 AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
30 dnl By default, look in $includedir and $libdir.
31 use_additional=yes
32 AC_LIB_WITH_FINAL_PREFIX([
33 eval additional_includedir=\"$includedir\"
34 eval additional_libdir=\"$libdir\"
35 ])
36 AC_LIB_ARG_WITH([lib-prefix],
37[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
38 --without-lib-prefix don't search for libraries in includedir and libdir],
39[
40 if test "X$withval" = "Xno"; then
41 use_additional=no
42 else
43 if test "X$withval" = "X"; then
44 AC_LIB_WITH_FINAL_PREFIX([
45 eval additional_includedir=\"$includedir\"
46 eval additional_libdir=\"$libdir\"
47 ])
48 else
49 additional_includedir="$withval/include"
50 additional_libdir="$withval/lib"
51 fi
52 fi
53])
54 if test $use_additional = yes; then
55 dnl Potentially add $additional_includedir to $CPPFLAGS.
56 dnl But don't add it
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
62 haveit=
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
66 haveit=yes
67 break
68 fi
69 done
70 if test -z "$haveit"; then
71 if test "X$additional_includedir" = "X/usr/local/include"; then
72 if test -n "$GCC"; then
73 case $host_os in
74 linux*) haveit=yes;;
75 esac
76 fi
77 fi
78 if test -z "$haveit"; then
79 if test -d "$additional_includedir"; then
80 dnl Really add $additional_includedir to $CPPFLAGS.
81 CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
82 fi
83 fi
84 fi
85 fi
86 dnl Potentially add $additional_libdir to $LDFLAGS.
87 dnl But don't add it
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/lib"; then
93 haveit=
94 for x in $LDFLAGS; do
95 AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
96 if test "X$x" = "X-L$additional_libdir"; then
97 haveit=yes
98 break
99 fi
100 done
101 if test -z "$haveit"; then
102 if test "X$additional_libdir" = "X/usr/local/lib"; then
103 if test -n "$GCC"; then
104 case $host_os in
105 linux*) haveit=yes;;
106 esac
107 fi
108 fi
109 if test -z "$haveit"; then
110 if test -d "$additional_libdir"; then
111 dnl Really add $additional_libdir to $LDFLAGS.
112 LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
113 fi
114 fi
115 fi
116 fi
117 fi
118])
119
120dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
121dnl acl_final_exec_prefix, containing the values to which $prefix and
122dnl $exec_prefix will expand at the end of the configure script.
123AC_DEFUN([AC_LIB_PREPARE_PREFIX],
124[
125 dnl Unfortunately, prefix and exec_prefix get only finally determined
126 dnl at the end of configure.
127 if test "X$prefix" = "XNONE"; then
128 acl_final_prefix="$ac_default_prefix"
129 else
130 acl_final_prefix="$prefix"
131 fi
132 if test "X$exec_prefix" = "XNONE"; then
133 acl_final_exec_prefix='${prefix}'
134 else
135 acl_final_exec_prefix="$exec_prefix"
136 fi
137 acl_save_prefix="$prefix"
138 prefix="$acl_final_prefix"
139 eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
140 prefix="$acl_save_prefix"
141])
142
143dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
144dnl variables prefix and exec_prefix bound to the values they will have
145dnl at the end of the configure script.
146AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
147[
148 acl_save_prefix="$prefix"
149 prefix="$acl_final_prefix"
150 acl_save_exec_prefix="$exec_prefix"
151 exec_prefix="$acl_final_exec_prefix"
152 $1
153 exec_prefix="$acl_save_exec_prefix"
154 prefix="$acl_save_prefix"
155])