# Requierement checking for AbiWord package installation on Solaris
# Author: Hubert Figuiere <hfiguiere@teaser.fr>
# 
# AbiSource Applications
# Copyright (C) 1998 AbiSource, Inc.
# Copyright (C) 2001 Hubert Figuière
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.


# Package names

zlib_pkg=JGzlib
libpng_pkg=SMClpng
glib_pkg=SMCglib
gtk_pkg=SMCgtk+
# from SUN's GNOME distribution for Solaris 8
sunglib_pkg=SUNWglib 
sungtk_pkg=SUNWgtk+

# Version requirements
VERS_GLIB_MIN=1.2.7
VERS_GTK_MIN=1.2.7

#######################################################
# check version. Request is arg1, current is arg2
# return 0 if current >= requested
# otherwise 1
# trick borrowed from autoconf configure scripts
check_ver ()
{
	vers_num=`echo ${2} | awk 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
	req_num=`echo ${1} | awk 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
	if [ ${vers_num} -lt ${req_num} ]; then
	#	echo "but version >= ${1} is required..."
		return 1
	else
	#	echo "version ok."
		return 0
	fi
}

#######################################################
# check Solaris version. Currently only 2.6, 7 and 8 versions are
# supported
sol_vers=`uname -r`
case $sol_vers in
	5.6)
		;;
	5.7)
		;;
	5.8)
		;;
	*)
		echo "This version of Solaris is not supported"
		exit 3
		;;
esac

# check zlib availability
# Solaris 8 already have zlib so we don't check for it.
if [ x${sol_vers} = x5.6 ] || [ x${sol_vers} = x5.7 ]; then
	pkginfo -q ${zlib_pkg}  # sunfreeware package for Solaris 2.6 and 2.7
	if [ $? -ne 0 ]; then
		# check if installed manually
		if [ ! -f /usr/local/lib/libz.so ]; then
			echo "zlib package not installed. Please download it from:"
			echo "    http://www.sunfreeware.com/"
			echo "then install it."
			exit 3
		else
			echo "Found /usr/local/lib/libz.so"
		fi
	else
		echo "Found zlib in package ${zlib_pkg}"
	fi
fi

# check libpng availability
pkginfo -q ${libpng_pkg} # sunfreeware package for Solaris 2.6, 7 and 8
if [ $? -ne 0 ]; then
	if [ ! -f /usr/local/lib/libpng.so ]; then
		echo "libpng package not installed. Please download it from:"
		echo "    http://www.sunfreeware.com/"
		echo "then install it."
		exit 3
	else
		echo "Found /usr/local/lib/libpng.so"
	fi
else
	echo "Found libpng in package ${libpng_pkg}"
fi


# check glib availability
vers_check=`pkgparam ${glib_pkg} VERSION 2>/dev/null` 
if [ $? -ne 0 ]; then
	vers_check=`/usr/local/bin/glib-config  --version 2>/dev/null`
	if [ $? -ne 0 ]; then
		echo "glib package not installed. Please download it from:"
		echo "    http://www.sunfreeware.com/"
		echo "then install it."
		exit 3
	else
		echo "Found glib version ${vers_check}"
	fi
else
	# check the version
	echo "Found glib version ${vers_check} in package ${glib_pkg}"
fi
if [ -z "${vers_check}" ];  then
	echo "Could not determine version"
	exit 3
else
	check_ver ${VERS_GLIB_MIN} ${vers_check}
	if [ $? -ne 0 ]; then
		echo "but version >= ${VERS_GLIB_MIN} required"
		exit 3
	fi
fi



# check gtk+ availability
vers_check=`pkgparam ${gtk_pkg} VERSION 2>/dev/null` 
if [ $? -ne 0 ]; then
	vers_check=`/usr/local/bin/gtk-config  --version 2>/dev/null`
	if [ $? -ne 0 ]; then
		echo "gtk+ package not installed. Please download it from:"
		echo "    http://www.sunfreeware.com/"
		echo "then install it."
		exit 3
	else
		echo "Found gtk+ version ${vers_check}"
	fi
else
	echo "Found gtk+ version ${vers_check} in package ${gtk+_pkg}"
fi
if [ -z "${vers_check}" ];  then
	echo "Could not determine version"
	exit 3
else
	# check for version 1.2.7 at least
	check_ver ${VERS_GTK_MIN} ${vers_check}
	if [ $? -ne 0 ]; then
		echo "but version >= ${VERS_GTK_MIN} required"
		exit 3
	fi
fi