| Daniel Erat | 748945e | 2015-08-11 09:22:30 -0600 | [diff] [blame] | 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 | ]) |