# configure.ac - Copyright 2005, University
#                of Padova, dept. of Pure and Applied
#                Mathematics
#
# This file is part of SGPEMv2.
#
# This 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.
#
# SGPEMv2 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 SGPEMv2. If not, see http://www.gnu.org/licenses/.


dnl ----------------- CONFIGURE ---------------------

AC_INIT([sgpemv2],[1.1],[matteo@member.fsf.org])

if test -f "`pwd`/configure.ac"; then
        AC_MSG_FAILURE([
   ** This seems to be the pkg root directory.
   ** Compiling here your sources is considered
   ** as unpolite as exploring your nose with 
   ** your pinky whilst attending a wedding party.
   ** Please create a new dir as described in
   ** the README file, and then run configure
   ** into it. If you think you've got it right, 
   ** please inform the mantainer of this error!
   ** He'll thoroughfully bash his head on the wall.], 
	-1 )
fi

AC_GNU_SOURCE
AC_CONFIG_AUX_DIR([config])
AC_CONFIG_MACRO_DIR([m4])

AC_CANONICAL_TARGET

dnl starting automake
AM_INIT_AUTOMAKE([dejagnu dist-bzip2 subdir-objects])
AM_SILENT_RULES([yes])

dnl HACK to avoid multiple definition of macros when
dnl including spgemv2-config.h (autoheader generated)
AH_TOP([#if not defined PACKAGE])
AH_BOTTOM([#endif])

dnl gettext & libtool
LT_INIT
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.17])

dnl various requisites
SIGCPP_VERSION=2.0.18
GLIBMM_VERSION=2.22.0
GTKMM_VERSION=2.18.0
CAIROMM_VERSION=1.8.0

dnl c++ compiler and flags
AC_PROG_CXX
AC_CHECK_CXXFLAG([CXXFLAGS], [Wall])
AC_CHECK_CXXFLAG([CXXFLAGS], [pedantic])
AC_CHECK_CXXFLAG([CXXFLAGS], [Wextra])
AC_CHECK_CXXFLAG([CXXFLAGS], [Wno-long-long])
AC_CHECK_CXXFLAG([CXXFLAGS], [Wno-strict-aliasing])
AC_CHECK_LDFLAG([LDFLAGS], [--as-needed])

dnl see if we've to enable debug flags
AC_ARG_ENABLE([debug], 
    AS_HELP_STRING([--enable-debug],
      [turn on debug compiler flags. Disabled by default]), 
    [enable_debug="$enableval"], [enable_debug="no"])

if test "$enable_debug" = "yes"; then
  AC_CHECK_CXXFLAG([CXXFLAGS], [O0])
  AC_CHECK_CXXFLAG([CXXFLAGS], [g3])
else
  AC_CHECK_CXXFLAG([CXXFLAGS], [DNDEBUG])
fi

dnl see if we have to enable visibility support
AC_ARG_ENABLE([visibility-support],
    AS_HELP_STRING([--enable-visibility-support],
              [enable the new GCC visibility support; requires GCC >= 4.0 to work.]),
              [enable_gcc_visibility="$enableval"],
              [enable_gcc_visibility="yes"])
AC_MSG_CHECKING([whether to use new GCC visibility attributes])
AC_MSG_RESULT([$enable_gcc_visibility])
if test "x$enable_gcc_visibility" = "xno"; then
  CPPFLAGS="${CPPFLAGS} -DDISABLE_VISIBILITY_SUPPORT"
else
  AC_CHECK_CXXFLAG([CXXFLAGS], [fvisibility-inlines-hidden])
fi


AC_PROG_INSTALL

dnl make
AC_PROG_MAKE_SET

dnl check for gtkmm & cairo
PKG_PROG_PKG_CONFIG([0.19])
if test -z "$PKG_CONFIG"; then
   AC_MSG_ERROR([You may need to update your pkg-config installation])
fi

PKG_CHECK_MODULES([CAIROMM], 
		[cairomm-1.0 >= $CAIROMM_VERSION],
		:, AC_MSG_ERROR([$CAIROMM_PKG_ERRORS]))
PKG_CHECK_MODULES([GTHREAD], 
		[gthread-2.0 >= $GTKMM_VERSION],
		:, AC_MSG_ERROR([$GTHREAD_PKG_ERRORS]))
PKG_CHECK_MODULES([SIGCPP], 
		[sigc++-2.0 >= $SIGCPP_VERSION],
		:, AC_MSG_ERROR([$SIGCPP_PKG_ERRORS]))
PKG_CHECK_MODULES([GLIBMM], 
		[glibmm-2.4 >= $GLIBMM_VERSION],
		:, AC_MSG_ERROR([$GLIBMM_PKG_ERRORS]))
PKG_CHECK_MODULES([GTKMM], 
		[gtkmm-2.4 >= $GTKMM_VERSION],
		:, AC_MSG_ERROR([$GTKMM_PKG_ERRORS]))

dnl check for Doxygen
AC_CHECK_PROG([HAVE_DOXYGEN],[doxygen],[yes])
AC_CHECK_PROG([HAVE_DOT],[dot], [yes])
AM_CONDITIONAL([HAVE_DOXYGEN],[test x$HAVE_DOXYGEN = xyes])

dnl see if we've to compile tests
AC_MSG_CHECKING([whether tests have to be built])
AC_ARG_ENABLE([tests],
   AS_HELP_STRING([--disable-tests], 
                  [don't compile the tests provided with sgpemv2]),
   [compile_tests="$enableval"],
   [compile_tests="yes"])
AC_MSG_RESULT([$compile_tests])
AM_CONDITIONAL([COND_TESTS], [test "$compile_tests" = "yes"])

dnl output files
AC_CONFIG_FILES([config/Doxyfile config/sgpemv2.pc \
  config/sgpemv2-uninstalled.pc data/sgpemv2.desktop])
AC_CONFIG_HEADERS([config.h:config.h.in])

# force include of configuration header in every compilation unit
CPPFLAGS="${CPPFLAGS} -include config.h"

dnl configure plugin directories
dnl TODO: make this conditional
AC_CONFIG_FILES([plugins/pyloader/config/sgpemv2-uninstalled.pc:config/sgpemv2-uninstalled.pc.in])
AC_CONFIG_FILES([plugins/xmlsave/config/sgpemv2-uninstalled.pc:config/sgpemv2-uninstalled.pc.in])

AC_CONFIG_SUBDIRS([plugins/pyloader plugins/xmlsave])

# Now, output this very package Makefiles:
AC_CONFIG_FILES([ 
	Makefile
	po/Makefile.in
])
AC_OUTPUT