#!/bin/sh

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

PRGNAM=itex2mml
VERSION=${VERSION:-1.4.10}
BUILD=${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 [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$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 . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

if [[ "$RUBY" = "YES" ]]; then
  MYRARCH=$(ruby -e 'print RbConfig::CONFIG["arch"]')
fi
# This fixes ruby bindings build, BINDIR, 
sed -i \
  -e "s|require\ \"rbconfig\";\ print\ |print Rb|" \
  -e "s|RUBYDIR)|RUBYDIR) -I/usr/include/ruby-1.9.1/${MYRARCH}|" \
  -e "s|local/||" \
  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

# Copy the slack-desc (and a custom doinst.sh if necessary) into ./install
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}