#!/bin/sh
CWD=`pwd`
TMP=${TMP:-/tmp}
PKG=$TMP/package-grub

VERSION=0.97
GCVER=1.28
ARCH=${ARCH:-i486}
BUILD=9

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

if [ ! -d $TMP ]; then
  mkdir -p $TMP
fi
rm -rf $PKG
mkdir -p $PKG
cd $TMP
rm -rf grub-$VERSION
tar xzvf $CWD/grub-$VERSION.tar.gz || exit 1
cd grub-$VERSION

zcat $CWD/gcc4.diff.gz | patch -p1 || exit 1
zcat $CWD/ext2-support-256byte-inodes.diff.gz | patch -p1 || exit 1
#zcat $CWD/stage2-dir-callback.diff.gz | patch -p1 || exit 1
#zcat $CWD/stage2-wildcard.diff.gz | patch -p1 || exit 1
#zcat $CWD/stage2-wildcard-zerowidth.diff.gz | patch -p1 || exit 1
#zcat $CWD/stage2-wildcard-doc.diff.gz | patch -p1 || exit 1
#exit
zcat $CWD/ext4-support.diff.gz | patch -p1 --backup --suffix=.orig || exit 1
zcat $CWD/grub-0.97-x86_64.patch.gz | patch -p1 || exit 1

chown -R root:root .
find . -perm 777 -exec chmod 755 {} \;
find . -perm 664 -exec chmod 644 {} \;
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --infodir=/usr/info \
  --mandir=/usr/man

make -j3 || exit 1
make install DESTDIR=$PKG || exit 1

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)

# Compress and if needed symlink the man pages:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# Compress info pages and purge "dir" file from the package:
if [ -d $PKG/usr/info ]; then
  ( cd $PKG/usr/info
    rm -f dir
    gzip -9 *
  )
fi

mkdir -p $PKG/usr/doc/grub-$VERSION
cp -a \
  AUTHORS BUGS COPYING INSTALL MAINTENANCE NEWS README THANKS TODO \
  $PKG/usr/doc/grub-$VERSION

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

# Add Kent's grubconfig tool:
cd $TMP
rm -rf grubconfig-$GCVER
tar xzf $CWD/grubconfig-${GCVER}.tar.gz
cd grubconfig-$GCVER
zcat $CWD/grubconfig_localefix.patch.gz | patch || exit 1
zcat $CWD/grubconfig_ext4fix.patch.gz | patch || exit 1
chown -R root:root .
chmod 644 README
chmod 755 grubconfig
mkdir -p $PKG/usr/doc/grubconfig-${GCVER}
cp -a README $PKG/usr/doc/grubconfig-${GCVER}
cp -a grubconfig $PKG/usr/sbin/grubconfig

cd $PKG
makepkg -l y -c n $TMP/grub-$VERSION-$ARCH-$BUILD.txz