127 lines
4.8 KiB
Diff
127 lines
4.8 KiB
Diff
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--- /dev/null
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+++ m4/libgcrypt.m4
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@@ -0,0 +1,123 @@
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+dnl Autoconf macros for libgcrypt
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+dnl Copyright (C) 2002, 2004 Free Software Foundation, Inc.
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+dnl
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+dnl This file is free software; as a special exception the author gives
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+dnl unlimited permission to copy and/or distribute it, with or without
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+dnl modifications, as long as this notice is preserved.
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+dnl
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+dnl This file is distributed in the hope that it will be useful, but
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+dnl WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
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+dnl implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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+
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+
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+dnl AM_PATH_LIBGCRYPT([MINIMUM-VERSION,
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+dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND ]]])
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+dnl Test for libgcrypt and define LIBGCRYPT_CFLAGS and LIBGCRYPT_LIBS.
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+dnl MINIMUN-VERSION is a string with the version number optionalliy prefixed
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+dnl with the API version to also check the API compatibility. Example:
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+dnl a MINIMUN-VERSION of 1:1.2.5 won't pass the test unless the installed
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+dnl version of libgcrypt is at least 1.2.5 *and* the API number is 1. Using
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+dnl this features allows to prevent build against newer versions of libgcrypt
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+dnl with a changed API.
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+dnl
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+AC_DEFUN([AM_PATH_LIBGCRYPT],
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+[ AC_ARG_WITH(libgcrypt-prefix,
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+ AC_HELP_STRING([--with-libgcrypt-prefix=PFX],
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+ [prefix where LIBGCRYPT is installed (optional)]),
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+ libgcrypt_config_prefix="$withval", libgcrypt_config_prefix="")
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+ if test x$libgcrypt_config_prefix != x ; then
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+ if test x${LIBGCRYPT_CONFIG+set} != xset ; then
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+ LIBGCRYPT_CONFIG=$libgcrypt_config_prefix/bin/libgcrypt-config
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+ fi
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+ fi
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+
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+ AC_PATH_TOOL(LIBGCRYPT_CONFIG, libgcrypt-config, no)
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+ tmp=ifelse([$1], ,1:1.2.0,$1)
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+ if echo "$tmp" | grep ':' >/dev/null 2>/dev/null ; then
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+ req_libgcrypt_api=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\1/'`
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+ min_libgcrypt_version=`echo "$tmp" | sed 's/\(.*\):\(.*\)/\2/'`
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+ else
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+ req_libgcrypt_api=0
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+ min_libgcrypt_version="$tmp"
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+ fi
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+
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+ AC_MSG_CHECKING(for LIBGCRYPT - version >= $min_libgcrypt_version)
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+ ok=no
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+ if test "$LIBGCRYPT_CONFIG" != "no" ; then
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+ req_major=`echo $min_libgcrypt_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\1/'`
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+ req_minor=`echo $min_libgcrypt_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\2/'`
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+ req_micro=`echo $min_libgcrypt_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\)/\3/'`
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+ libgcrypt_config_version=`$LIBGCRYPT_CONFIG --version`
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+ major=`echo $libgcrypt_config_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\1/'`
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+ minor=`echo $libgcrypt_config_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\2/'`
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+ micro=`echo $libgcrypt_config_version | \
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+ sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\.\([[0-9]]*\).*/\3/'`
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+ if test "$major" -gt "$req_major"; then
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+ ok=yes
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+ else
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+ if test "$major" -eq "$req_major"; then
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+ if test "$minor" -gt "$req_minor"; then
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+ ok=yes
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+ else
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+ if test "$minor" -eq "$req_minor"; then
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+ if test "$micro" -ge "$req_micro"; then
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+ ok=yes
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+ fi
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+ fi
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+ fi
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+ fi
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+ fi
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+ fi
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+ if test $ok = yes; then
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+ AC_MSG_RESULT([yes ($libgcrypt_config_version)])
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+ else
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+ AC_MSG_RESULT(no)
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+ fi
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+ if test $ok = yes; then
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+ # If we have a recent libgcrypt, we should also check that the
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+ # API is compatible
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+ if test "$req_libgcrypt_api" -gt 0 ; then
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+ tmp=`$LIBGCRYPT_CONFIG --api-version 2>/dev/null || echo 0`
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+ if test "$tmp" -gt 0 ; then
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+ AC_MSG_CHECKING([LIBGCRYPT API version])
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+ if test "$req_libgcrypt_api" -eq "$tmp" ; then
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+ AC_MSG_RESULT([okay])
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+ else
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+ ok=no
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+ AC_MSG_RESULT([does not match. want=$req_libgcrypt_api got=$tmp])
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+ fi
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+ fi
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+ fi
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+ fi
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+ if test $ok = yes; then
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+ LIBGCRYPT_CFLAGS=`$LIBGCRYPT_CONFIG --cflags`
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+ LIBGCRYPT_LIBS=`$LIBGCRYPT_CONFIG --libs`
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+ ifelse([$2], , :, [$2])
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+ if test x"$host" != x ; then
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+ libgcrypt_config_host=`$LIBGCRYPT_CONFIG --host 2>/dev/null || echo none`
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+ if test x"$libgcrypt_config_host" != xnone ; then
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+ if test x"$libgcrypt_config_host" != x"$host" ; then
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+ AC_MSG_WARN([[
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+***
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+*** The config script $LIBGCRYPT_CONFIG was
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+*** built for $libgcrypt_config_host and thus may not match the
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+*** used host $host.
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+*** You may want to use the configure option --with-libgcrypt-prefix
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+*** to specify a matching config script.
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+***]])
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+ fi
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+ fi
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+ fi
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+ else
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+ LIBGCRYPT_CFLAGS=""
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+ LIBGCRYPT_LIBS=""
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+ ifelse([$3], , :, [$3])
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+ fi
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+ AC_SUBST(LIBGCRYPT_CFLAGS)
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+ AC_SUBST(LIBGCRYPT_LIBS)
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+])
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