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comparison mcabber/macros/missing/libgcrypt.m4 @ 1302:1abddbec502a

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Provide libotr and libgcrypt m4 macros
author Mikael Berthe <mikael@lilotux.net>
date Thu, 30 Aug 2007 09:57:01 +0200
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1301:37b41ed9ed35 1302:1abddbec502a
1 dnl Autoconf macros for libgcrypt
2 dnl Copyright (C) 2002, 2004 Free Software Foundation, Inc.
3 dnl
4 dnl This file is free software; as a special exception the author gives
5 dnl unlimited permission to copy and/or distribute it, with or without
6 dnl modifications, as long as this notice is preserved.
7 dnl
8 dnl This file is distributed in the hope that it will be useful, but
9 dnl WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
10 dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11
12
13 dnl AM_PATH_LIBGCRYPT([MINIMUM-VERSION,
14 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
15 dnl Test for libgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS.
16 dnl MINIMUN-VERSION is a string with the version number optionalliy prefixed
17 dnl with the API version to also check the API compatibility. Example:
18 dnl a MINIMUN-VERSION of 1:1.2.5 won't pass the test unless the installed
19 dnl version of libgcrypt is at least 1.2.5 *and* the API number is 1. Using
20 dnl this features allows to prevent build against newer versions of libgcrypt
21 dnl with a changed API.
22 dnl
23 AC_DEFUN([AM_PATH_LIBGCRYPT],
24 [ AC_ARG_WITH(libgcrypt-prefix,
25 AC_HELP_STRING([--with-libgcrypt-prefix=PFX],
26 [prefix where LIBGCRYPT is installed (optional)]),
27 libgcrypt_config_prefix="$withval", libgcrypt_config_prefix="")
28 if test x$libgcrypt_config_prefix != x ; then
29 if test x${LIBGCRYPT_CONFIG+set} != xset ; then
30 LIBGCRYPT_CONFIG=$libgcrypt_config_prefix/bin/libgcrypt-config
31 fi
32 fi
33
34 AC_PATH_PROG(LIBGCRYPT_CONFIG, libgcrypt-config, no)
35 tmp=ifelse([$1], ,1:1.2.0,$1)
36 if echo "$tmp" | grep ':' >/dev/null 2>/dev/null ; then
37 req_libgcrypt_api=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\1/'`
38 min_libgcrypt_version=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\2/'`
39 else
40 req_libgcrypt_api=0
41 min_libgcrypt_version="$tmp"
42 fi
43
44 AC_MSG_CHECKING(for LIBGCRYPT - version >= $min_libgcrypt_version)
45 ok=no
46 if test "$LIBGCRYPT_CONFIG" != "no" ; then
47 req_major=`echo $min_libgcrypt_version | \
48 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
49 req_minor=`echo $min_libgcrypt_version | \
50 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
51 req_micro=`echo $min_libgcrypt_version | \
52 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
53 libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version`
54 major=`echo $libgcrypt_config_version | \
55 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
56 minor=`echo $libgcrypt_config_version | \
57 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
58 micro=`echo $libgcrypt_config_version | \
59 sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'`
60 if test "$major" -gt "$req_major"; then
61 ok=yes
62 else
63 if test "$major" -eq "$req_major"; then
64 if test "$minor" -gt "$req_minor"; then
65 ok=yes
66 else
67 if test "$minor" -eq "$req_minor"; then
68 if test "$micro" -ge "$req_micro"; then
69 ok=yes
70 fi
71 fi
72 fi
73 fi
74 fi
75 fi
76 if test $ok = yes; then
77 AC_MSG_RESULT(yes)
78 else
79 AC_MSG_RESULT(no)
80 fi
81 if test $ok = yes; then
82 # If we have a recent libgcrypt, we should also check that the
83 # API is compatible
84 if test "$req_libgcrypt_api" -gt 0 ; then
85 tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0`
86 if test "$tmp" -gt 0 ; then
87 AC_MSG_CHECKING([LIBGCRYPT API version])
88 if test "$req_libgcrypt_api" -eq "$tmp" ; then
89 AC_MSG_RESULT(okay)
90 else
91 ok=no
92 AC_MSG_RESULT([does not match (want=$req_libgcrypt_api got=$tmp)])
93 fi
94 fi
95 fi
96 fi
97 if test $ok = yes; then
98 LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG --cflags`
99 LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG --libs`
100 ifelse([$2], , :, [$2])
101 else
102 LIBGCRYPT_CFLAGS=""
103 LIBGCRYPT_LIBS=""
104 ifelse([$3], , :, [$3])
105 fi
106 AC_SUBST(LIBGCRYPT_CFLAGS)
107 AC_SUBST(LIBGCRYPT_LIBS)
108 ])