#!/bin/sh

# Slackware build script for kernel-source

## Copyright (c) 2008, Antonio Hernandez Blas <hba.nihilismus@gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 1.- Redistributions of source code 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.

# Modified by Robby Workman <rworkman@slackware.com>
# Modified by Patrick Volkerding <volkerdi@slackware.com>

PRGNAM=kernel-source
VERSION=${VERSION:-2.4.33.3}
ARCH=${ARCH:-i686}
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PRGNAM

NUMJOBS=${NUMJOBS:--j3}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "s390x" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

rm -rf $PKG 
mkdir -p $TMP $PKG
cd $PKG || exit 1
rm -rf usr
mkdir -p usr/src/
cd usr/src/
echo Unpacking the kernel sources, so be patient...
tar -jxf $CWD/linux-$VERSION.tar.bz2 || exit 1
ln -sf linux-${VERSION} linux
cd linux-$VERSION || exit 1
cp -a scripts scripts.save
chown -R root:root .
chmod -R a-s,u+rw,go-w .

zcat $CWD/s390-patches/lnx24333-36.timer.gz | patch -p1 || exit 1
cat $CWD/s390-patches/reiserfs.strcpy.fix.diff | patch -p1 || exit 1
cat $CWD/s390-patches/dasd_int.h.diff | patch -p1 || exit 1
cat $CWD/s390-patches/chandev.c.diff | patch -p1 || exit 1
cat $CWD/s390-patches/tape.h.diff | patch -p1 || exit 1
cat $CWD/s390-patches/tubttybld.c.diff | patch -p1 || exit 1
cat $CWD/s390-patches/qeth.c.diff | patch -p1 || exit 1
cat $CWD/s390-patches/lcs.c.diff | patch -p1 || exit 1

cp -vpi ${CWD}/config-s390-${VERSION} .config
ARCH="s390" make oldconfig || exit 1
rm .config.old
ARCH="s390" make dep || exit 1
ARCH="s390" make ${NUMJOBS} image || exit 1
ARCH="s390" make ${NUMJOBS} modules || exit 1
ARCH="s390" make clean || exit 1
rm -f .version
find . -name .depend -o -name .hdepend | xargs rm 
rm -rf scripts
mv scripts.save scripts

mkdir -p $PKG/install
cat $CWD/slack-desc.s390 > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/${PRGNAM}-$VERSION-$ARCH-$BUILD.tgz