#!/bin/sh

# Slackware build script for kernel-rt

# Written by Wade Nelson (hollywoodb)

PRGNAM=kernel-rt
RTPATCH=rt20
VERSION=${VERSION:-2.6.24.7}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-2}
TAG=${TAG:-_SAW}

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

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

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf linux-$VERSION
tar jxvf $CWD/linux-$VERSION.tar.bz2
cd linux-$VERSION
cp $CWD/patch-$VERSION-$RTPATCH.bz2 ./
bunzip2 patch-$VERSION-$RTPATCH.bz2
chown -R root:root .

patch -p1 < patch-$VERSION-$RTPATCH

cat $CWD/config > ./.config
make oldconfig
make menuconfig
make all

mkdir -p $PKG/boot
cp arch/x86/boot/bzImage $PKG/boot/vmlinuz-$VERSION-$RTPATCH
cp System.map $PKG/boot/System.map-$VERSION-$RTPATCH
cat .config > $PKG/boot/config-$VERSION-$RTPATCH
INSTALL_MOD_PATH=$PKG make modules_install

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION-$RTPATCH
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION-$RTPATCH/$PRGNAM.SlackBuild

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION\_$RTPATCH-$ARCH-$BUILD$TAG.tgz