#!/bin/sh

# Copyright 2006, 2007, 2008, 2009  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


PKGNAM=mesa
VERSION=${VERSION:-7.0.3}
ARCH=${ARCH:-x86_64}
TARGET=${TARGET:-i486}
BUILD=${BUILD:-1_slamd64}


CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-mesa
rm -rf $PKG
mkdir -p $TMP $PKG

if [ "$TARGET" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  PLAT="x86"
elif [ "$TARGET" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  PLAT="x86-64"
fi

cd $TMP
rm -rf Mesa-${VERSION}
tar xvf $CWD/MesaLib-$VERSION.tar.bz2 || exit 1
tar xvf $CWD/MesaGLUT-$VERSION.tar.bz2 || exit 1
tar xvf $CWD/MesaDemos-$VERSION.tar.bz2 || exit 1
cd Mesa-$VERSION

# Make sure ownerships and permissions are sane:
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

# Patch to build into "/usr":
zcat $CWD/mesa.linux-dri-${PLAT}.diff.gz | patch -p1 --verbose  || exit 1

# Build:
make CC="gcc -m32" linux-dri-${PLAT} || exit 1

# Patch to put into /tmp/package-mesa:  (sorry, I know this should use $PKG ;-)
zcat $CWD/mesa.linux-dri-${PLAT}-fake-destdir.diff.gz | patch -p1 --verbose  || exit 1

# Install:
make install || exit 1

# Strip binaries:
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

rm -rf $PKG/usr/{bin,share,include,info,man,lib/xorg}

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/${PKGNAM}-compat32-$VERSION-$ARCH-$BUILD.txz