#!/bin/sh -x
#
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"@(#)build_emacs	1.2	09/10/29 SMI"


# Build GNU emacs for the Solaris SFW consolidation:
#
#	build_emacs class variant insroot
#
# where:
#
#	class - Class of emacs to build (32 or 64)
#	variant - Toolkit variant. One of (lucid, nox, or gtk)
#	insroot - Root of tree where emacs is expected to be
#		be run from. Normally '', signifying the system
#		root, but can be set elsewhere for debugging purposes.
#
# This script assumes that it will be run from usr/src/cmd/emacs,
# from Makefile.sfw, within the environment exported by bldenv.
#
# We use this script rather than doing it all from Makefile.sfw,
# because the series of steps involved in a build is rather complex,
# and it occurs in the Makefile multiple times.

VER=emacs-23.1


case $1 in
32) 	CC=${GCC};;
64)	CC="${GCC} -m64";;
*)	echo "build_emacs: unknown class '$1'. Must be 32 or 64." >&2; exit 1;;
esac

case $2 in
lucid)	TOOLKIT_OPT='--with-x-toolkit=lucid --with-gif=no';;
nox)	TOOLKIT_OPT='--without-x';;
gtk)	TOOLKIT_OPT='--with-x-toolkit=gtk --with-gif=no';;
*)	echo "build_emacs: unknown variant '$2'. Must be lucid, nox, or gtk" >&2;
	exit 1;;
esac

INSTALL_ROOT=$3

# These are the options we specify for every build to determine
# where things get installed.
BASE_OPT="--prefix=${INSTALL_ROOT-/} \
	    --bindir=${INSTALL_ROOT}/usr/bin \
	    --datarootdir=${INSTALL_ROOT}/usr/share \
	    --libexecdir=${INSTALL_ROOT}/usr/lib"

# If the emacs tarball has not been unpacked, do that, and then
# apply our patches.
if [ ! -d $VER ]; then
	/usr/bin/gzip -dc ${VER}.tar.gz | /usr/sfw/bin/gtar xpf -
	/usr/bin/gpatch -p0 < augment/patch/buffer_menu.patch
	/usr/bin/gpatch -p0 < augment/patch/sysmalloc.patch
	/usr/bin/gpatch -p0 < augment/patch/dldump.patch


	# The GPL license under which emacs is published is
	# found in files named COPYING, throughout the package.
	# Prepend the Sun GPLv2 disclaimer text to all such
	# files stating that sun explicitly chooses GPLv2
	# in those cases where the license offers a choice.
	for F in `find . -name COPYING`; do
		mv $F $F.orig
		(echo "For the avoidance of doubt, except that if any license choice other than GPL or
LGPL is available it will apply instead, Sun elects to use only the General
Public License version 3 (GPLv3) at this time for any software where a choice of
GPL license versions is made available with the language indicating that GPLv3
or any later version may be used, or where a choice of which version of the GPL
is applied is otherwise unspecified.
====================================================================

"; cat $F.orig) > $F
	rm $F.orig
	done
fi

cd $VER

# If it has a makefile, do a clean
if [ -f Makefile ]; then
	make clean
fi

# If it has been configured, wipe it back to its unpacked state
if [ -f config.status ]; then
	make distclean
fi

# Export environment variables
export CC	# Set above
MAKE=${GMAKE-gmake}				export MAKE
if [ "$SFW_PATH" != '' ]; then
	PATH=$SFW_PATH
fi
ac_cv_sys_long_file_names=yes;		export ac_cv_sys_long_file_names

# Configure the distribution
./configure $BASE_OPT $TOOLKIT_OPT

# Build it
$MAKE

exit 0