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- fix a memory leak (Cedric Duval)
[pkg/abook.git] / m4 / lib-prefix.m4
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 ])