#!/bin/sh
#
# ode.SlackBuild
# 2013-05-07
#
# Open Dynamics Engine
# ODE is an open source, high performance library for simulating
# rigid body dynamics. It is fully featured, stable, mature and
# platform independent with an easy to use C/C++ API.

PRGNAM=ode
VERSION=0.11.1

# automatically determine the architecture
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i686) ARCH=i686 ;;
    i?86) ARCH=i486 ;;
    x86_64) ARCH=x86_64 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$(uname -m) ;;
  esac
fi

BUILD=${BUILD:-1}
TAG=${TAG:-scr}

HOMEPAGE="http://ode.org/"
SOURCE="${PRGNAM}-${VERSION}.tar.bz2"
DOWNLOAD="http://downloads.sourceforge.net/project/opende/ODE/${VERSION}/${SOURCE}"
MD5SUM="712579afabc2a15aa56e399f76171477"

REQUIRES=""

MAINTAINER="Gernot Walzl"
EMAIL="gernot.walzl@gmx.at"

DESC="Open Dynamics Engine

ODE is an open source, high performance library for simulating
rigid body dynamics. It is fully featured, stable, mature and
platform independent with an easy to use C/C++ API.
It has advanced joint types and integrated collision detection
with friction. ODE is useful for simulating vehicles,
objects in virtual reality environments and virtual creatures.

${HOMEPAGE}"

DOCS="$(pwd)/$0 *.txt *.TXT"

# EOF info


# set initial variables
CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# exit on error
set -e

# download the source if needed
if [ ! -f $CWD/$SOURCE ]; then
  wget -O $CWD/$SOURCE $DOWNLOAD || exit 1
fi

# check for correct source file
if [ "$(md5sum $CWD/$SOURCE | cut -f 1 -d ' ')" != "$MD5SUM" ]; then
  exit 1
fi

# extract the application source
cd $TMP || exit 1
tar xvf $CWD/$SOURCE || exit 1

# change to the application source directory
cd $PRGNAM-$VERSION || exit 1

# fix permissions
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# set configure options
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

# configure the makefile
LDFLAGS="-L/usr/lib${LIBDIRSUFFIX}" \
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" \
  ./configure \
  --prefix=/usr \
  --libdir=/usr/lib$LIBDIRSUFFIX \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  || exit 1

# compile the source
make || exit 1

# install everything into the package directory
rm -rf $PKG
mkdir -p $PKG/install
make install DESTDIR=$PKG || exit 1

# add documentation
if [ "$DOCS" != "" ]; then
  mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
  cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
  find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
fi

# compress man pages
if [ -d $PKG/usr/man ]; then
  find $PKG/usr/man -type f -name "*.?" -exec gzip -9 {} \;
  for i in $(find $PKG/usr/man -type l -name "*.?") ; do
    ln -s $(readlink $i).gz $i.gz
    rm $i
  done
fi

# add some description to the package
if [ "$DESC" != "" ]; then
  echo "$DESC" | sed 's/^/'$PRGNAM': /g' > $PKG/install/slack-desc
fi

# append dependency information to the package
if [ "$REQUIRES" != "" ]; then
  for REQ in $REQUIRES; do
    echo "$REQ" >> $PKG/install/slack-required
  done
fi

# build the package
cd $PKG
makepkg -l y -c n \
  $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz} \
  || exit 1

# make everything clean
cd $CWD
rm -rf $PKG
rm -rf $TMP/$PRGNAM-$VERSION