#!/bin/bash

# Slackware build script for itex2mml
# Written by David Matthew Jerry Koenig <koenigdavidmj@gmail.com>
# Public domain.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=itex2mml
VERSION=${VERSION:-1.5.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

# Enable Ruby bindings by default.
RUBY=${RUBY:-YES}

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/itexToMML.tar.gz
cd itexToMML/itex-src
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
 -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

if [ "$RUBY" = "YES" ]; then
  sed -i \
    -e 's|require "rbconfig"; ||' \
    -e 's|-I\$(RUBYDIR)|& -I$(RUBYHDRDIR)/$(RUBY_ARCH)|' \
    Makefile
fi

sed -i \
  -e "s|BINDIR=/usr/local/bin|BINDIR=/usr/bin|" \
  Makefile

make clean
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
make
mkdir -p $PKG/usr/bin
make install BINDIR=$PKG/usr/bin

if [ "$RUBY" = "YES" ]; then
  make ruby
  ARCHDIR="$PKG$(ruby -e 'print RbConfig::CONFIG["sitearchdir"]')"
  SITEDIR="$PKG$(ruby -e 'print RbConfig::CONFIG["sitelibdir"]')"
  mkdir -p $ARCHDIR
  mkdir -p $SITEDIR
  make CFLAGS="$SLKCFLAGS" install_ruby RUBY_SITEARCHDIR=$ARCHDIR RUBY_SITEDIR=$SITEDIR
fi

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
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}