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1 | # lib-prefix.m4 serial 1 (gettext-0.11) |
2 | dnl Copyright (C) 2001-2002 Free Software Foundation, Inc. | |
3 | dnl This file is free software, distributed under the terms of the GNU | |
4 | dnl General Public License. As a special exception to the GNU General | |
5 | dnl Public License, this file may be distributed as part of a program | |
6 | dnl that contains a configuration script generated by Autoconf, under | |
7 | dnl the same distribution terms as the rest of that program. | |
8 | ||
9 | dnl From Bruno Haible. | |
10 | ||
11 | dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed | |
12 | dnl to access previously installed libraries. The basic assumption is that | |
13 | dnl a user will want packages to use other packages he previously installed | |
14 | dnl with the same --prefix option. | |
15 | dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate | |
16 | dnl libraries, but is otherwise very convenient. | |
17 | AC_DEFUN([AC_LIB_PREFIX], | |
18 | [ | |
19 | AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) | |
20 | AC_REQUIRE([AC_PROG_CC]) | |
21 | AC_REQUIRE([AC_CANONICAL_HOST]) | |
22 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) | |
23 | dnl By default, look in $includedir and $libdir. | |
24 | use_additional=yes | |
25 | AC_LIB_WITH_FINAL_PREFIX([ | |
26 | eval additional_includedir=\"$includedir\" | |
27 | eval additional_libdir=\"$libdir\" | |
28 | ]) | |
29 | AC_ARG_WITH([lib-prefix], | |
30 | [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib | |
31 | --without-lib-prefix don't search for libraries in includedir and libdir], | |
32 | [ | |
33 | if test "X$withval" = "Xno"; then | |
34 | use_additional=no | |
35 | else | |
36 | if test "X$withval" = "X"; then | |
37 | AC_LIB_WITH_FINAL_PREFIX([ | |
38 | eval additional_includedir=\"$includedir\" | |
39 | eval additional_libdir=\"$libdir\" | |
40 | ]) | |
41 | else | |
42 | additional_includedir="$withval/include" | |
43 | additional_libdir="$withval/lib" | |
44 | fi | |
45 | fi | |
46 | ]) | |
47 | if test $use_additional = yes; then | |
48 | dnl Potentially add $additional_includedir to $CPPFLAGS. | |
49 | dnl But don't add it | |
50 | dnl 1. if it's the standard /usr/include, | |
51 | dnl 2. if it's already present in $CPPFLAGS, | |
52 | dnl 3. if it's /usr/local/include and we are using GCC on Linux, | |
53 | dnl 4. if it doesn't exist as a directory. | |
54 | if test "X$additional_includedir" != "X/usr/include"; then | |
55 | haveit= | |
56 | for x in $CPPFLAGS; do | |
57 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
58 | if test "X$x" = "X-I$additional_includedir"; then | |
59 | haveit=yes | |
60 | break | |
61 | fi | |
62 | done | |
63 | if test -z "$haveit"; then | |
64 | if test "X$additional_includedir" = "X/usr/local/include"; then | |
65 | if test -n "$GCC"; then | |
66 | case $host_os in | |
67 | linux*) haveit=yes;; | |
68 | esac | |
69 | fi | |
70 | fi | |
71 | if test -z "$haveit"; then | |
72 | if test -d "$additional_includedir"; then | |
73 | dnl Really add $additional_includedir to $CPPFLAGS. | |
74 | CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" | |
75 | fi | |
76 | fi | |
77 | fi | |
78 | fi | |
79 | dnl Potentially add $additional_libdir to $LDFLAGS. | |
80 | dnl But don't add it | |
81 | dnl 1. if it's the standard /usr/lib, | |
82 | dnl 2. if it's already present in $LDFLAGS, | |
83 | dnl 3. if it's /usr/local/lib and we are using GCC on Linux, | |
84 | dnl 4. if it doesn't exist as a directory. | |
85 | if test "X$additional_libdir" != "X/usr/lib"; then | |
86 | haveit= | |
87 | for x in $LDFLAGS; do | |
88 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
89 | if test "X$x" = "X-L$additional_libdir"; then | |
90 | haveit=yes | |
91 | break | |
92 | fi | |
93 | done | |
94 | if test -z "$haveit"; then | |
95 | if test "X$additional_libdir" = "X/usr/local/lib"; then | |
96 | if test -n "$GCC"; then | |
97 | case $host_os in | |
98 | linux*) haveit=yes;; | |
99 | esac | |
100 | fi | |
101 | fi | |
102 | if test -z "$haveit"; then | |
103 | if test -d "$additional_libdir"; then | |
104 | dnl Really add $additional_libdir to $LDFLAGS. | |
105 | LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" | |
106 | fi | |
107 | fi | |
108 | fi | |
109 | fi | |
110 | fi | |
111 | ]) | |
112 | ||
113 | dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, | |
114 | dnl acl_final_exec_prefix, containing the values to which $prefix and | |
115 | dnl $exec_prefix will expand at the end of the configure script. | |
116 | AC_DEFUN([AC_LIB_PREPARE_PREFIX], | |
117 | [ | |
118 | dnl Unfortunately, prefix and exec_prefix get only finally determined | |
119 | dnl at the end of configure. | |
120 | if test "X$prefix" = "XNONE"; then | |
121 | acl_final_prefix="$ac_default_prefix" | |
122 | else | |
123 | acl_final_prefix="$prefix" | |
124 | fi | |
125 | if test "X$exec_prefix" = "XNONE"; then | |
126 | acl_final_exec_prefix='${prefix}' | |
127 | else | |
128 | acl_final_exec_prefix="$exec_prefix" | |
129 | fi | |
130 | acl_save_prefix="$prefix" | |
131 | prefix="$acl_final_prefix" | |
132 | eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" | |
133 | prefix="$acl_save_prefix" | |
134 | ]) | |
135 | ||
136 | dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the | |
137 | dnl variables prefix and exec_prefix bound to the values they will have | |
138 | dnl at the end of the configure script. | |
139 | AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], | |
140 | [ | |
141 | acl_save_prefix="$prefix" | |
142 | prefix="$acl_final_prefix" | |
143 | acl_save_exec_prefix="$exec_prefix" | |
144 | exec_prefix="$acl_final_exec_prefix" | |
145 | $1 | |
146 | exec_prefix="$acl_save_exec_prefix" | |
147 | prefix="$acl_save_prefix" | |
148 | ]) |