#!/bin/sh

# Slackware build script for grub4dos

# Written by Steven Pledger <slacker4life@rocketmail.com>

PRGNAM=grub4dos
VERSION=${VERSION:-0.4.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) ARCH=$( uname -m ) ;;
  esac
fi

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

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Build Chinese version
CHINESE="${CHINESE:-no}"

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
unzip $CWD/$PRGNAM-$VERSION-src.zip
cd $PRGNAM-$VERSION
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 {} \;

# Included patch that translates to Chinese
[ "$CHINESE" = "yes" ] && patch -p1 < patch-chinese.diff

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
sh configure \
  --enable-preset-menu=preset_menu.lst \
  --build=$ARCH-slackware-linux

make

# "make install" installs a lot of Grub legacy stuff not used by grub4dos, so install manually

# hybrid DOS/Linux executable for installing grub4dos
mkdir -p $PKG/usr/sbin
install -m 0755 stage2/bootlace.com $PKG/usr/sbin

mkdir -p $PKG/usr/share/$PRGNAM
cp -a \
  config.sys default menu.lst grub.pif stage2/grldr stage2/grub.exe \
  stage2/badgrub.exe stage2/grldr.mbr stage2/hmload.com \
  $PKG/usr/share/$PRGNAM

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

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  COPYING README_GRUB4DOS.txt ChangeLog_GRUB4DOS.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}