#!/bin/sh
# Heavily based on the Slackware 12.2 SlackBuild
# http://www.scilab.org/
# Packager Vincenzi Loris - slacky@slacky.it

CWD=`pwd`
TMP=${TMP:-/tmp/tgz}
PKG=$TMP/package-scilab
NAME=scilab
VERSION=5.1
CHOST=i486
ARCH=${ARCH:-i486}
BUILD=1sl
SOURCE=http://www.scilab.org/download/$VERSION/$NAME-$VERSION-src.tar.gz
PREREQUIREMENTS=http://www.scilab.org/download/$VERSION/prerequirements-$NAME-$VERSION-src.tar.gz
# PVM=http://www.netlib.org/pvm3/pvm3.4.6.tgz


set -e

if [ ! -e prerequirements-$NAME-$VERSION-src.tar.gz ]; then
echo "Downloading prerequirements"
wget -c $PREREQUIREMENTS
fi

# if [ ! -e pvm3.4.6.tgz ]; then
# echo "Downloading PVM"
# wget -c $PVM
# fi

if [ ! -e $NAME-$VERSION-src.tar.gz ]; then
echo "Downloading source"
wget -c $SOURCE
fi

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

if [ ! -d $TMP ]; then
 mkdir -p $TMP
fi
if [ ! -d $PKG ]; then
 mkdir -p $PKG
fi

cd $TMP
# tar xzf $CWD/pvm3.4.6.tgz
# export PVM_ROOT=$TMP/pvm3
# (
# echo "Building PVM"
# cd pvm3
# CFLOPTS="$SLKCFLAGS" \
# FFLOPTS="$SLKCFLAGS" \
# make
# make install
# )

echo "Unpacking Prerequirements (this can take several minutes)"
tar xzf $CWD/prerequirements-$NAME-$VERSION-src.tar.gz
tar xzf $CWD/$NAME-$VERSION-src.tar.gz

echo "+=============================================================================="
echo "| Building $NAME-$VERSION"
echo "+=============================================================================="

cd $NAME-$VERSION
find . \( -perm 777 -o -perm 775 -o -perm 711 \) -exec chmod 755 {} \;
find . \( -perm 700 -o -perm 555 -o -perm 511 \) -exec chmod 755 {} \;
find . \( -perm 666 -o -perm 664 -o -perm 600 \) -exec chmod 644 {} \;
find . \( -perm 444 -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
chown -R root:root .
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
FFLABS="$SLKCFLAGS" \
./configure --prefix=/usr \
--sysconfdir=/etc \
--without-ocaml \
--without-pvm \
--with-jdk=$TMP/$NAME-$VERSION/java/jdk \
--without-matio \
--with-ant=/usr/lib/ant \
--with-x \
--enable-build-localization \
--enable-build-help \
--build=$CHOST-slackware-linux
make all
make doc
make install DESTDIR=$PKG

cd $PKG


mv $TMP/$NAME-$VERSION/thirdparty $PKG/usr/share/$NAME
cp $TMP/$NAME-$VERSION/bin/lib* $PKG/usr/lib/$NAME/

sed -i "s/\/tmp\/tgz\/$NAME-$VERSION/\$SCILAB/" $PKG/usr/share/scilab/etc/classpath.xml

find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs strip -g 2> /dev/null
mkdir -p $PKG/usr/share/applications
cp $CWD/scilab.desktop $PKG/usr/share/applications
mkdir -p $PKG/usr/share/pixmaps
cp $CWD/scilab.png $PKG/usr/share/pixmaps

mkdir -p $PKG/usr/doc/$NAME-$VERSION
ln -s /usr/share/$NAME $PKG/usr/doc/$NAME-$VERSION
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$NAME-$VERSION/slack-desc
cat $CWD/$NAME.SlackBuild > $PKG/usr/doc/$NAME-$VERSION/$NAME.SlackBuild
requiredbuilder -v -y -s $CWD $PKG
makepkg -l y -c n $CWD/../$NAME-$VERSION-$ARCH-$BUILD.tgz


if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi