#!/bin/sh

# Slackware build script for octave
# Written by Kyle Guinn <elyk03@gmail.com>
# HDF5 support by Aleksandar Samardzic <asamardzic@matf.bg.ac.yu>

PRGNAM="octave"
VERSION=${VERSION:-3.2.4}
BUILD=${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-$VERSION
OUTPUT=${OUTPUT:-/tmp}

DOCS="BUGS COPYING ChangeLog* INSTALL* NEWS* PROJECTS README* ROADMAP SENDING-PATCHES"

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"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.bz2
cd $PRGNAM-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-st .

# qhull 2010.1 does not install qhull/qhull.h; this file is for "backwards
# compatibility" and just redirects to qhull/libqhull.h.  Octave tries to
# use the old header only to compile a test during ./configure.  The test
# fails because the old header doesn't exist, and as a result Octave won't
# use qhull.  This line fixes the test, but you may need to comment it out
# if you intend on using an older version of qhull.
sed -i 's/qhull\/qhull\.h/qhull\/libqhull\.h/g' configure aclocal.m4

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
FFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --enable-shared \
  --disable-static \
  --enable-strict-warning-flags \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

# install-strip doesn't strip the files in usr/lib/octave-$VERSION,
# so leave this in for now.
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

( 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
)

rm -f $PKG/usr/info/dir
gzip -9 $PKG/usr/info/*

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$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
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}