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1 | # lib-prefix.m4 serial 4 (gettext-0.14.2) |
2 | dnl Copyright (C) 2001-2005 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_PREFIX]) | |
28 | dnl By default, look in $includedir and $libdir. | |
29 | use_additional=yes | |
30 | AC_LIB_WITH_FINAL_PREFIX([ | |
31 | eval additional_includedir=\"$includedir\" | |
32 | eval additional_libdir=\"$libdir\" | |
33 | ]) | |
34 | AC_LIB_ARG_WITH([lib-prefix], | |
35 | [ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib | |
36 | --without-lib-prefix don't search for libraries in includedir and libdir], | |
37 | [ | |
38 | if test "X$withval" = "Xno"; then | |
39 | use_additional=no | |
40 | else | |
41 | if test "X$withval" = "X"; then | |
42 | AC_LIB_WITH_FINAL_PREFIX([ | |
43 | eval additional_includedir=\"$includedir\" | |
44 | eval additional_libdir=\"$libdir\" | |
45 | ]) | |
46 | else | |
47 | additional_includedir="$withval/include" | |
48 | additional_libdir="$withval/lib" | |
49 | fi | |
50 | fi | |
51 | ]) | |
52 | if test $use_additional = yes; then | |
53 | dnl Potentially add $additional_includedir to $CPPFLAGS. | |
54 | dnl But don't add it | |
55 | dnl 1. if it's the standard /usr/include, | |
56 | dnl 2. if it's already present in $CPPFLAGS, | |
57 | dnl 3. if it's /usr/local/include and we are using GCC on Linux, | |
58 | dnl 4. if it doesn't exist as a directory. | |
59 | if test "X$additional_includedir" != "X/usr/include"; then | |
60 | haveit= | |
61 | for x in $CPPFLAGS; do | |
62 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
63 | if test "X$x" = "X-I$additional_includedir"; then | |
64 | haveit=yes | |
65 | break | |
66 | fi | |
67 | done | |
68 | if test -z "$haveit"; then | |
69 | if test "X$additional_includedir" = "X/usr/local/include"; then | |
70 | if test -n "$GCC"; then | |
71 | case $host_os in | |
72 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; | |
73 | esac | |
74 | fi | |
75 | fi | |
76 | if test -z "$haveit"; then | |
77 | if test -d "$additional_includedir"; then | |
78 | dnl Really add $additional_includedir to $CPPFLAGS. | |
79 | CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" | |
80 | fi | |
81 | fi | |
82 | fi | |
83 | fi | |
84 | dnl Potentially add $additional_libdir to $LDFLAGS. | |
85 | dnl But don't add it | |
86 | dnl 1. if it's the standard /usr/lib, | |
87 | dnl 2. if it's already present in $LDFLAGS, | |
88 | dnl 3. if it's /usr/local/lib and we are using GCC on Linux, | |
89 | dnl 4. if it doesn't exist as a directory. | |
90 | if test "X$additional_libdir" != "X/usr/lib"; then | |
91 | haveit= | |
92 | for x in $LDFLAGS; do | |
93 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
94 | if test "X$x" = "X-L$additional_libdir"; then | |
95 | haveit=yes | |
96 | break | |
97 | fi | |
98 | done | |
99 | if test -z "$haveit"; then | |
100 | if test "X$additional_libdir" = "X/usr/local/lib"; then | |
101 | if test -n "$GCC"; then | |
102 | case $host_os in | |
103 | linux*) haveit=yes;; | |
104 | esac | |
105 | fi | |
106 | fi | |
107 | if test -z "$haveit"; then | |
108 | if test -d "$additional_libdir"; then | |
109 | dnl Really add $additional_libdir to $LDFLAGS. | |
110 | LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" | |
111 | fi | |
112 | fi | |
113 | fi | |
114 | fi | |
115 | fi | |
116 | ]) | |
117 | ||
118 | dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, | |
119 | dnl acl_final_exec_prefix, containing the values to which $prefix and | |
120 | dnl $exec_prefix will expand at the end of the configure script. | |
121 | AC_DEFUN([AC_LIB_PREPARE_PREFIX], | |
122 | [ | |
123 | dnl Unfortunately, prefix and exec_prefix get only finally determined | |
124 | dnl at the end of configure. | |
125 | if test "X$prefix" = "XNONE"; then | |
126 | acl_final_prefix="$ac_default_prefix" | |
127 | else | |
128 | acl_final_prefix="$prefix" | |
129 | fi | |
130 | if test "X$exec_prefix" = "XNONE"; then | |
131 | acl_final_exec_prefix='${prefix}' | |
132 | else | |
133 | acl_final_exec_prefix="$exec_prefix" | |
134 | fi | |
135 | acl_save_prefix="$prefix" | |
136 | prefix="$acl_final_prefix" | |
137 | eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" | |
138 | prefix="$acl_save_prefix" | |
139 | ]) | |
140 | ||
141 | dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the | |
142 | dnl variables prefix and exec_prefix bound to the values they will have | |
143 | dnl at the end of the configure script. | |
144 | AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], | |
145 | [ | |
146 | acl_save_prefix="$prefix" | |
147 | prefix="$acl_final_prefix" | |
148 | acl_save_exec_prefix="$exec_prefix" | |
149 | exec_prefix="$acl_final_exec_prefix" | |
150 | $1 | |
151 | exec_prefix="$acl_save_exec_prefix" | |
152 | prefix="$acl_save_prefix" | |
153 | ]) |