1 dnl Autoconf macros for libgcrypt 2 dnl Copyright (C) 2002, 2004, 2011 Free Software Foundation, Inc. 3 dnl Copyright (C) 2014 Karlson2k (Evgeny Grin) 4 dnl 5 dnl This file is free software; as a special exception the author gives 6 dnl unlimited permission to copy and/or distribute it, with or without 7 dnl modifications, as long as this notice is preserved. 8 dnl 9 dnl This file is distributed in the hope that it will be useful, but 10 dnl WITHOUT ANY WARRANTY, to the extent permitted by law; without even the 11 dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 13 14 dnl AM_PATH_LIBGCRYPT([MINIMUM-VERSION, 15 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]]) 16 dnl Test for libgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS. 17 dnl MINIMUN-VERSION is a string with the version number optionalliy prefixed 18 dnl with the API version to also check the API compatibility. Example: 19 dnl a MINIMUN-VERSION of 1:1.2.5 won't pass the test unless the installed 20 dnl version of libgcrypt is at least 1.2.5 *and* the API number is 1. Using 21 dnl this features allows to prevent build against newer versions of libgcrypt 22 dnl with a changed API. 23 dnl 24 dnl Updated by Karlson2k to be more tolerant to host tools variations. 25 dnl 26 AC_DEFUN([AM_PATH_LIBGCRYPT], 27 [ AC_REQUIRE([AC_CANONICAL_HOST]) 28 AC_REQUIRE([AC_PROG_GREP]) 29 AC_REQUIRE([AC_PROG_SED]) 30 AC_ARG_WITH(libgcrypt-prefix, 31 AC_HELP_STRING([--with-libgcrypt-prefix=PFX], 32 [prefix where LIBGCRYPT is installed (optional)]), 33 libgcrypt_config_prefix="$withval", libgcrypt_config_prefix="") 34 if test x$libgcrypt_config_prefix != x ; then 35 if test x${LIBGCRYPT_CONFIG+set} != xset ; then 36 LIBGCRYPT_CONFIG=$libgcrypt_config_prefix/bin/libgcrypt-config 37 fi 38 fi 39 40 AC_PATH_TOOL(LIBGCRYPT_CONFIG, libgcrypt-config, no) 41 tmp=ifelse([$1], ,1:1.2.0,$1) 42 if echo "$tmp" | $GREP ':' >/dev/null 2>/dev/null ; then 43 req_libgcrypt_api=`echo "$tmp" | $SED 's/\(.*\):\(.*\)/\1/'` 44 min_libgcrypt_version=`echo "$tmp" | $SED 's/\(.*\):\(.*\)/\2/'` 45 else 46 req_libgcrypt_api=0 47 min_libgcrypt_version="$tmp" 48 fi 49 50 AC_MSG_CHECKING(for LIBGCRYPT - version >= $min_libgcrypt_version) 51 ok=no 52 if test "$LIBGCRYPT_CONFIG" != "no" ; then 53 req_major=`echo $min_libgcrypt_version | \ 54 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'` 55 req_minor=`echo $min_libgcrypt_version | \ 56 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'` 57 req_micro=`echo $min_libgcrypt_version | \ 58 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'` 59 libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version` 60 major=`echo $libgcrypt_config_version | \ 61 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'` 62 minor=`echo $libgcrypt_config_version | \ 63 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'` 64 micro=`echo $libgcrypt_config_version | \ 65 $SED 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'` 66 if test "$major" -gt "$req_major"; then 67 ok=yes 68 else 69 if test "$major" -eq "$req_major"; then 70 if test "$minor" -gt "$req_minor"; then 71 ok=yes 72 else 73 if test "$minor" -eq "$req_minor"; then 74 if test "$micro" -ge "$req_micro"; then 75 ok=yes 76 fi 77 fi 78 fi 79 fi 80 fi 81 fi 82 if test $ok = yes; then 83 AC_MSG_RESULT([yes ($libgcrypt_config_version)]) 84 else 85 AC_MSG_RESULT(no) 86 fi 87 if test $ok = yes; then 88 # If we have a recent libgcrypt, we should also check that the 89 # API is compatible 90 if test "$req_libgcrypt_api" -gt 0 ; then 91 tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0` 92 if test "$tmp" -gt 0 ; then 93 AC_MSG_CHECKING([LIBGCRYPT API version]) 94 if test "$req_libgcrypt_api" -eq "$tmp" ; then 95 AC_MSG_RESULT([okay]) 96 else 97 ok=no 98 AC_MSG_RESULT([does not match. want=$req_libgcrypt_api got=$tmp]) 99 fi 100 fi 101 fi 102 fi 103 if test $ok = yes; then 104 LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG --cflags` 105 LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG --libs` 106 ifelse([$2], , :, [$2]) 107 libgcrypt_config_host=`$LIBGCRYPT_CONFIG --host 2>/dev/null || echo none` 108 if test x"$libgcrypt_config_host" != xnone ; then 109 if test x"$libgcrypt_config_host" != x"$host" ; then 110 AC_MSG_WARN([[ 111 *** 112 *** The config script $LIBGCRYPT_CONFIG was 113 *** built for $libgcrypt_config_host and thus may not match the 114 *** used host $host. 115 *** You may want to use the configure option --with-libgcrypt-prefix 116 *** to specify a matching config script. 117 ***]]) 118 fi 119 fi 120 else 121 LIBGCRYPT_CFLAGS="" 122 LIBGCRYPT_LIBS="" 123 ifelse([$3], , :, [$3]) 124 fi 125 AC_SUBST(LIBGCRYPT_CFLAGS) 126 AC_SUBST(LIBGCRYPT_LIBS) 127 ]) 128
