#!/bin/sh

# Slackware build script for Lua

# Written by Menno Duursma
# Modified by the SlackBuilds.org project

PRGNAM=lua
VERSION=5.1.4
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP || exit 1
rm -rf $PRGNAM-$VERSION
# Note: You must use the patched source at
# http://slackbuilds.org/sources/12.2/lua-5.1.4_autotools.tar.bz2
# or this build will fail.
tar xvf $CWD/$PRGNAM-${VERSION}_autotools.tar.bz2|| exit 1
cd $PRGNAM-$VERSION || exit 1
chown -R root:root .
chmod -R a-s,u+rw,go-w+r .
chmod u+x autogen.sh config.guess \
          config.sub configure depcomp \
          install-sh missing

CFLAGS="$SLKCFLAGS" \
./configure \
  --with-readline \
  --prefix=/usr \
  --libdir=/usr/lib$LIBDIRSUFFIX || exit 1

sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool

make 
make install DESTDIR=/$PKG

# Let's make sure all of the library symlinks correctly exist
( cd $PKG/usr/lib$LIBDIRSUFFIX
  ln -sf liblua.so.${VERSION} liblua.so.5
  ln -sf liblua.so.${VERSION} liblua.so
  chmod 0755 liblua.so.${VERSION}
)

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

( cd $PKG/usr/man
  find . -type f -exec gzip -9 {} \;
  for i in $(find . -type l) ; do ln -s $(readlink $i).gz $i.gz ; rm $i ; done
)

# Remove some empty directories, I can't imagine why these are here.
rm -rf $PKG/usr/share $PKG/usr/lib/lua

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/{extras,html}
cp -a COPYRIGHT HISTORY INSTALL README $PKG/usr/doc/$PRGNAM-$VERSION
cp -a doc/*.html doc/logo.gif doc/lua.css $PKG/usr/doc/$PRGNAM-$VERSION/html
cp -a etc test $PKG/usr/doc/$PRGNAM-$VERSION/extras
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.tgz