#!/bin/bash

# gzip.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <stuart@armedslack.org>

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGSERIES/$PACKAGE
export PORTCWD=$PWD

# Temporary build locations:
export TMPBUILD=$TMP/build-$PACKAGE
export PKG=$TMP/package-$PACKAGE
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Determine the CFLAGS for the known architectures:
case $PORTARCH in
   arm)     export SLKCFLAGS="-O2 -march=armv3 -mtune=xscale" ;;
   powerpc) export SLKCFLAGS="-O2" ;;
   sparc)   export SLKCFLAGS="-O2" ;;
   hppa)    export SLKCFLAGS="-O2" ;;
   *)       export SLKCFLAGS="-O2" ;;
esac

# Extract source:
tar jxvvf $CWD/$PACKAGE-$VERSION.tar.bz2
cd $PACKAGE-$VERSION
slackhousekeeping

# Apply security fixes:
zcat $CWD/gzip-1.3.5-huft-build-return-fix.patch.gz | patch -p0 --verbose || exit 1
zcat $CWD/gzip-1.3.5-gunzip-dir.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/gzip-1.3.5-gzip-perm.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/gzip-1.3.5-google-owl-bound.diff.gz | patch -p1 --verbose || exit 1

# Configure:
CFLAGS="$SLKCFLAGS" \
./configure \
   --prefix=/usr \
   $ARCH-slackware-linux || failconfig

# Build:
make || failmake

# Install into package:
make install DESTDIR=$PKG || failinstall

# Fix locations:
( cd $PKG
  mkdir bin
  mv usr/bin/gzip bin
  ( cd bin ; rm -rf gunzip )
  ( cd bin ; ln -sf gzip gunzip )
  ( cd bin ; rm -rf zcat )
  ( cd bin ; ln -sf gzip zcat )
  ( cd usr/bin ; rm -rf gzip )
  ( cd usr/bin ; ln -sf ../../bin/gzip gzip )
  ( cd usr/bin ; rm -rf gunzip )
  ( cd usr/bin ; ln -sf ../../bin/gunzip gunzip )
  ( cd usr/bin ; rm -rf zcat )
  ( cd usr/bin ; ln -sf ../../bin/zcat zcat )
  ( cd usr/bin ; rm -rf zcmp )
  ( cd usr/bin ; ln -sf zdiff zcmp )
  ( cd usr/bin ; rm -rf zegrep )
  ( cd usr/bin ; ln -sf zgrep zegrep )
  ( cd usr/bin ; rm -rf zfgrep )
  ( cd usr/bin ; ln -sf zgrep zfgrep )
)

# Add a documentation directory:
mkdir -p $PKG/usr/doc/$PACKAGE-$VERSION
cp -favv AUTHORS COPYING INSTALL NEWS README README-alpha THANKS TODO \
         $PKG/usr/doc/$PACKAGE-$VERSION

# If necessary, start the fakeroot server so we can set file/dir ownerships:
start_fakeroot

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh

# Build the package:
if [ $PORTARCH = arm ]; then
   slackmp # run makepkg
  else
   makepkg -l y -c n $PKGSTORE/$PKGSERIES/$PACKAGE-$VERSION-$ARCH-$BUILD.tgz
fi

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links