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	# configure.ac for GPA
	# Copyright (C) 2000, 2001 Werner Koch
	# Copyright (C) 2002, 2003, 2004 Miguel Coca
	# Copyright (C) 2005, 2006, 2007, 2008, 2009 g10 Code GmbH
	#
	# This file is part of GPA.
	#
	# GPA is free software; you can redistribute it and/or modify it under
	# the terms of the GNU General Public License as published by the Free
	# Software Foundation; either version 3 of the License, or (at your
	# option) any later version.
	#
	# GPA is distributed in the hope that it will be useful but WITHOUT
	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	# License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program; if not, see <http://www.gnu.org/licenses/>.
	#
	# (Process this file with autoconf to produce a configure script.)
	AC_PREREQ(2.61)
	min_automake_version="1.10"

	# The version number goes here.
	#
	# Remember to change the version number immediately after a release.
	# Set my_issvn to "yes" for non-released code. Remember to run an
	# "svn up" and "autogen.sh --force" right before creating a distribution.
	m4_define(my_version, [0.9.2])
	m4_define(my_issvn, yes)

	m4_define([svn_revision], m4_esyscmd([printf "%d" $(svn info 2>/dev/null \
	\| sed -n '/^Revision:/ s/[^0-9]//gp'\|head -1)]))
	m4_define([git_revision], m4_esyscmd([git branch -v 2>/dev/null \
	\| awk '/^\* / {printf "%s",$3}']))
	m4_define([my_full_version], [my_version[]m4_if(my_issvn,[yes],
	[m4_if(git_revision,[],[-svn[]svn_revision],[-git[]git_revision])])])
	AC_INIT([gpa],[my_full_version],[http://bugs.gnupg.org])

	NEED_GPG_ERROR_VERSION=1.4
	NEED_LIBASSUAN_API=2
	NEED_LIBASSUAN_VERSION=1.1.0
	NEED_GPGME_API=1
	NEED_GPGME_VERSION=1.2.0


	AM_CONFIG_HEADER(config.h)
	AC_CONFIG_SRCDIR(src/gpa.c)
	AM_INIT_AUTOMAKE($PACKAGE_NAME, $PACKAGE_VERSION)

	BUILD_REVISION=svn_revision
	PACKAGE=$PACKAGE_NAME
	VERSION=$PACKAGE_VERSION
	AC_SUBST(PACKAGE)
	AC_SUBST(VERSION)
	AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package])
	AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version of this package])

	AC_DEFINE_UNQUOTED(PACKAGE_BUGREPORT, "$PACKAGE_BUGREPORT",
	[address for reporting bugs])

	have_gpg_error=no
	have_gpgme=no
	have_libassuan=no


	# Generate extended version information
	if test "$have_w32_system" = yes; then
	BUILD_TIMESTAMP=`date --iso-8601=minutes`
	changequote(,)dnl
	BUILD_FILEVERSION=`echo "$VERSION" \| sed 's/$[0-9.]$./\1./;s/\./,/g'`
	changequote([,])dnl
	BUILD_FILEVERSION="${BUILD_FILEVERSION}${BUILD_REVISION}"
	fi
	AC_SUBST(BUILD_REVISION)
	AC_SUBST(BUILD_TIMESTAMP)
	AC_SUBST(BUILD_FILEVERSION)
	AC_DEFINE_UNQUOTED(BUILD_REVISION, "$BUILD_REVISION",
	[Subversion revision used to build this package])


	AC_GNU_SOURCE

	AH_BOTTOM([
	/* We don't want the old assuan codes anymore. */
	#define _ASSUAN_ONLY_GPG_ERRORS 1

	#include "gpadefs.h"
	])


	AM_MAINTAINER_MODE

	dnl Check for libraries
	AC_CHECK_LIB(m, sin)
	CHECK_ZLIB
	AC_CHECK_FUNCS([strsep stpcpy])

	development_version=no
	# Allow users to append something to the version string (other than -cvs)
	# without flagging it as development version. The user version parts is
	# considered everything after a dash.
	if test "$development_version" != yes; then
	changequote(,)dnl
	tmp_pat='[a-zA-Z]'
	changequote([,])dnl
	if echo "$VERSION" \| sed 's/-.*//' \| grep "$tmp_pat" >/dev/null \|\|
	echo "$VERSION" \| grep -- "-cvs$" >/dev/null; then
	development_version=yes
	fi
	fi
	if test "$development_version" = yes; then
	AC_DEFINE(IS_DEVELOPMENT_VERSION,1,
	[Defined if this is not a regular release])
	fi


	# Define HAVE_W32_SYSTEM as an alternative to the other macros which
	# might led the naive reader assume that W32 is actually a win. Also
	# needed later to enable certain gcc options.
	have_w32_system=no
	case "${host}" in
	-mingw32) have_w32_system=yes ;;
	esac
	if test "$have_w32_system" = yes; then
	AC_DEFINE(HAVE_W32_SYSTEM,1, [Defined if we run on a W32 API based system])
	fi
	AM_CONDITIONAL(HAVE_W32_SYSTEM, test "$have_w32_system" = yes)



	dnl
	dnl Checks for programs
	dnl
	AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
	AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
	AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
	AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
	AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
	AC_PROG_CC
	AC_ISC_POSIX
	AC_STDC_HEADERS
	AC_PROG_RANLIB
	AC_CHECK_TOOL(WINDRES, windres, :)

	if test -z "$GPG"; then
	AC_PATH_PROG(GPG, gpg)
	if test -z "$GPG"; then
	AC_MSG_ERROR([[
	***
	*** GnuPG not found. Please install GnuPG first.
	*** See http://www.gnupg.org/download.html
	***
	]])
	fi
	fi

	dnl Find the keyserver plugins. Assume that gpgkeys_ldap is always available
	AC_PATH_PROG(GPGKEYS_LDAP, gpgkeys_ldap, [${libexecdir}/gnupg/gpgkeys_ldap],
	[$PATH:/usr/libexec/gnupg/:/usr/lib/gnupg/])
	KEYSERVER_HELPERS_DIR=`dirname $GPGKEYS_LDAP`
	if test -z "$KEYSERVER_HELPERS_DIR"; then
	AC_MSG_ERROR([[
	***
	*** Keyserver helpers not found. They should be contained in the GnuPG package.
	***
	]])
	fi

	AC_DEFINE_UNQUOTED(GPG_PATH, "$GPG", [Path to the gpg binary.])
	AC_DEFINE_UNQUOTED(KEYSERVER_HELPERS_DIR,
	"$KEYSERVER_HELPERS_DIR", [Path to keyserver helper tools])

	dnl
	dnl Checks for compiler features
	dnl


	dnl
	dnl Checks for libraries
	dnl
	NETLIBS=
	if test "$have_w32_system" = yes; then
	NETLIBS="${NETLIBS} -lws2_32"
	fi
	AC_SUBST(NETLIBS)


	AM_PO_SUBDIRS
	AM_GNU_GETTEXT_VERSION([0.17])
	AM_GNU_GETTEXT([external],[need-ngettext])


	dnl Where is the GTK+ toolkit
	AM_PATH_GTK_2_0(2.10.0,, AC_MSG_ERROR(Cannot find GTK+ 2.0))


	#
	# The GnuPG shared error codes library.
	#
	AM_PATH_GPG_ERROR("$NEED_GPG_ERROR_VERSION",
	have_gpg_error=yes,have_gpg_error=no)
	AC_DEFINE(GPG_ERR_SOURCE_DEFAULT, 12,
	[The default error source for GPA.])

	#
	# Libassuan is the IPC library used for the server mode
	#
	AM_PATH_LIBASSUAN("$NEED_LIBASSUAN_API:$NEED_LIBASSUAN_VERSION",
	have_libassuan=yes,have_libassuan=no)

	# We need this for GPGME
	AC_SYS_LARGEFILE

	#
	# Depending on the OS we need to test for different versions of gpgme.
	#
	_AM_PATH_GPGME_CONFIG
	if test "$have_w32_system" = yes; then
	AM_PATH_GPGME_GLIB("$NEED_GPGME_API:$NEED_GPGME_VERSION",
	have_gpgme=yes,have_gpgme=no)
	GPGME_LIBS="$GPGME_GLIB_LIBS"
	GPGME_CFLAGS="$GPGME_GLIB_CFLAGS"
	AC_SUBST(GPGME_CFLAGS)
	AC_SUBST(GPGME_LIBS)
	else
	AM_PATH_GPGME("$NEED_GPGME_API:$NEED_GPGME_VERSION",
	have_gpgme=yes,have_gpgme=no)
	fi

	dnl The tests below are not anymore used because we now depend on a
	dnl gpgme which has all these features. However, I keep the code here
	dnl for future work.
	dnl
	dnl _save_libs=$LIBS
	dnl _save_cflags=$CFLAGS
	dnl LIBS="$LIBS $GPGME_LIBS"
	dnl CFLAGS="$CFLAGS $GPGME_CFLAGS"
	dnl AC_CHECK_FUNCS([gpgme_op_assuan_transact])
	dnl AC_CHECK_FUNCS([gpgme_io_write])
	dnl # Fixme: We should write a test based on gpgme_subkey_t
	dnl # We might even want to put such a test into gpgme.m4.
	dnl AC_CHECK_MEMBERS([struct _gpgme_subkey.card_number],,,[#include <gpgme.h>])
	dnl LIBS=$_save_libs
	dnl CFLAGS="$_save_cflags"
	dnl # We build the card manager only if we have a decent libgpgme. */
	dnl if test "x$ac_cv_func_gpgme_op_assuan_transact" = "xyes"; then
	dnl AC_DEFINE(BUILD_CARD_MANAGER, 1,
	dnl [Defined if the card manager shall be build.])
	dnl fi
	dnl AM_CONDITIONAL(BUILD_CARD_MANAGER,
	dnl test "x$ac_cv_func_gpgme_op_assuan_transact" = "xyes")


	#
	# Checks for header files.
	#
	AC_MSG_NOTICE([checking for header files])
	AC_CHECK_HEADERS([locale.h])

	#
	# Checks for typedefs and structures
	#

	GNUPG_CHECK_TYPEDEF(byte, HAVE_BYTE_TYPEDEF)
	GNUPG_CHECK_TYPEDEF(ushort, HAVE_USHORT_TYPEDEF)
	GNUPG_CHECK_TYPEDEF(ulong, HAVE_ULONG_TYPEDEF)
	GNUPG_CHECK_TYPEDEF(u16, HAVE_U16_TYPEDEF)
	GNUPG_CHECK_TYPEDEF(u32, HAVE_U32_TYPEDEF)

	#
	# Check for library functions
	#

	# See whether libc supports the Linux inotify interface
	case "${host}" in
	--linux*)
	AC_CHECK_FUNCS([inotify_init])
	;;
	esac


	#
	# Set extra compiler flags
	#
	if test "$GCC" = yes; then
	if test "$USE_MAINTAINER_MODE" = "yes"; then
	# FIXME:
	#
	# Should have -Wshadow here too, but it causes too many warnings
	# along with GTK+, due to:
	#
	# http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=529&database=gcc
	#
	# Add it again if that bug is ever fixed.
	#
	# The same goes to -Wstrict-prototypes, as it causes too many warnings
	# in gtkitemfactory.h:51 (see comment in the code for the reason).
	#
	# All those warnings make it difficult to tell apart real GPA
	# warnings.
	#
	# CFLAGS="$CFLAGS -Wall -Wcast-align -Wshadow -Wstrict-prototypes"
	CFLAGS="$CFLAGS -Wall -Wcast-align"
	else
	CFLAGS="$CFLAGS -Wall"
	fi
	if test "$have_w32_system" = yes; then
	CFLAGS="$CFLAGS -mms-bitfields"
	fi
	fi


	#
	# Print errors here so that they are visible all
	# together and the user can acquire them all together.
	#
	die=no
	if test "$have_gpg_error" = "no"; then
	die=yes
	AC_MSG_NOTICE([[
	***
	*** You need libgpg-error to build this program.
	** This library is for example available at
	*** ftp://ftp.gnupg.org/gcrypt/libgpg-error
	*** (at least version $NEED_GPG_ERROR_VERSION is required.)
	***]])
	fi
	if test "$have_gpgme" = "no"; then
	die=yes
	AC_MSG_NOTICE([[
	***
	*** You need gpgme to build this program.
	** This library is for example available at
	*** ftp://ftp.gnupg.org/gcrypt/gpgme/
	*** (at least version $NEED_GPGME_VERSION is required.)
	***]])
	fi
	if test "$have_libassuan" = "no"; then
	die=yes
	AC_MSG_NOTICE([[
	***
	*** You need libassuan to build this program.
	*** This library is for example available at
	*** ftp://ftp.gnupg.org/gcrypt/libassuan/
	*** (at least version $NEED_LIBASSUAN_VERSION is required).
	***]])
	fi
	if test "$die" = "yes"; then
	AC_MSG_ERROR([[
	***
	*** Required libraries not found. Please consult the above messages
	*** and install them before running configure again.
	***]])
	fi


	AC_CONFIG_FILES([ m4/Makefile
	Makefile
	po/Makefile.in
	src/Makefile
	pixmaps/Makefile
	doc/Makefile
	])


	AC_OUTPUT

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