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135 lines
4.2 KiB
Plaintext
135 lines
4.2 KiB
Plaintext
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dnl
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dnl Off-the-Record Messaging library
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dnl Copyright (C) 2004-2007 Ian Goldberg, Chris Alexander, Nikita Borisov
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dnl <otr@cypherpunks.ca>
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dnl
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dnl This library is free software; you can redistribute it and/or
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dnl modify it under the terms of version 2.1 of the GNU Lesser General
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dnl Public License as published by the Free Software Foundation.
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dnl
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dnl This library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this library; if not, write to the Free Software
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dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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dnl
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dnl AM_PATH_LIBOTR([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
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dnl Test for libotr, and define LIBOTR_CFLAGS and LIBOTR_LIBS as appropriate.
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dnl enables arguments --with-libotr-prefix=
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dnl --with-libotr-inc-prefix=
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dnl
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dnl You must already have found libgcrypt with AM_PATH_LIBGCRYPT
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dnl
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dnl Adapted from alsa.m4, originally by
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dnl Richard Boulton <richard-alsa@tartarus.org>
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dnl Christopher Lansdown <lansdoct@cs.alfred.edu>
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dnl Jaroslav Kysela <perex@suse.cz>
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AC_DEFUN([AM_PATH_LIBOTR],
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[dnl Save the original CFLAGS, LDFLAGS, and LIBS
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libotr_save_CFLAGS="$CFLAGS"
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libotr_save_LDFLAGS="$LDFLAGS"
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libotr_save_LIBS="$LIBS"
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libotr_found=yes
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dnl
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dnl Get the cflags and libraries for libotr
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dnl
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AC_ARG_WITH(libotr-prefix,
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[ --with-libotr-prefix=PFX Prefix where libotr is installed(optional)],
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[libotr_prefix="$withval"], [libotr_prefix=""])
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AC_ARG_WITH(libotr-inc-prefix,
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[ --with-libotr-inc-prefix=PFX Prefix where libotr includes are (optional)],
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[libotr_inc_prefix="$withval"], [libotr_inc_prefix=""])
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dnl Add any special include directories
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AC_MSG_CHECKING(for libotr CFLAGS)
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if test "$libotr_inc_prefix" != "" ; then
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LIBOTR_CFLAGS="$LIBOTR_CFLAGS -I$libotr_inc_prefix"
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CFLAGS="$CFLAGS $LIBOTR_CFLAGS"
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fi
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AC_MSG_RESULT($LIBOTR_CFLAGS)
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dnl add any special lib dirs
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AC_MSG_CHECKING(for libotr LIBS)
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if test "$libotr_prefix" != "" ; then
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LIBOTR_LIBS="$LIBOTR_LIBS -L$libotr_prefix"
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LDFLAGS="$LDFLAGS $LIBOTR_LIBS"
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fi
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dnl add the libotr library
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LIBOTR_LIBS="$LIBOTR_LIBS -lotr"
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LIBS="$LIBOTR_LIBS $LIBS"
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AC_MSG_RESULT($LIBOTR_LIBS)
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dnl Check for a working version of libotr that is of the right version.
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min_libotr_version=ifelse([$1], ,3.0.0,$1)
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no_libotr=""
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libotr_min_major_version=`echo $min_libotr_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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libotr_min_minor_version=`echo $min_libotr_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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libotr_min_sub_version=`echo $min_libotr_version | \
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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AC_MSG_CHECKING(for libotr headers version $libotr_min_major_version.x >= $min_libotr_version)
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AC_LANG_SAVE
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AC_LANG_C
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AC_TRY_COMPILE([
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#include <stdlib.h>
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#include <libotr/version.h>
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], [
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# if(OTRL_VERSION_MAJOR != $libotr_min_major_version)
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# error not present
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# else
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# if(OTRL_VERSION_MINOR > $libotr_min_minor_version)
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exit(0);
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# else
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# if(OTRL_VERSION_MINOR < $libotr_min_minor_version)
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# error not present
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# endif
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# if(OTRL_VERSION_SUB < $libotr_min_sub_version)
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# error not present
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# endif
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# endif
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# endif
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exit(0);
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],
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[AC_MSG_RESULT(found.)],
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[AC_MSG_RESULT(not present.)
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ifelse([$3], , [AC_MSG_ERROR(Sufficiently new version of libotr not found.)])
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libotr_found=no]
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)
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AC_LANG_RESTORE
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dnl Now that we know that we have the right version, let's see if we have the library and not just the headers.
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AC_CHECK_LIB([otr], [otrl_message_receiving],,
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[ifelse([$3], , [AC_MSG_ERROR(No linkable libotr was found.)])
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libotr_found=no],
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$LIBGCRYPT_LIBS
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)
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LDFLAGS="$libotr_save_LDFLAGS"
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LIBS="$libotr_save_LIBS"
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if test "x$libotr_found" = "xyes" ; then
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ifelse([$2], , :, [$2])
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else
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LIBOTR_CFLAGS=""
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LIBOTR_LIBS=""
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ifelse([$3], , :, [$3])
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fi
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dnl That should be it. Now just export our symbols:
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AC_SUBST(LIBOTR_CFLAGS)
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AC_SUBST(LIBOTR_LIBS)
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])
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