#!/bin/sh
# Heavily based on the Slackware 13.1 SlackBuild
# http://opencv.willowgarage.com/wiki/
#
# Required: dirac, faac, ffmpeg, lame, libdc1394, libgsm, numpy
# Required: opencore-amr, openjpeg, orc, schroedinger, speex
# Required: x264, xvidcore
# 
# packager: mauro.sacchetto@alice.it



CWD=`pwd`
OUTPUT=${OUTPUT:-$CWD}
PKGNAME=OpenCV
TMP=${TMP:-/tmp/txz/$PKGNAME}
PKG=$TMP/package
VERSION=2.1.0
ARCH=${ARCH:-i486}
BUILD=${BUILD:-3}
TAG=${TAG:-sl}

SOURCE=http://downloads.sourceforge.net/opencvlibrary/$PKGNAME-$VERSION.tar.bz2

if [ ! -e $PKGNAME-$VERSION.tar.bz2 ]; then
wget -c $SOURCE
fi


if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST="i486"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST="i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"; SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"; CHOST="x86_64"
fi

rm -rf $PKG
mkdir -p $TMP $PKG


cd $TMP
tar xvjf $CWD/$PKGNAME-$VERSION.tar.bz2 || exit 1

echo -e "\E[0;32m+-------------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild OpenCV |\E[0;0m"
echo -e "\E[0;32m+-------------------------+\E[0;0m"

cd $PKGNAME-$VERSION

# Fix incompatibility with new libpng-1.4!
patch -p0 < $CWD/opencv-2.0.0-libpng14.patch

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


# Building OpenCV package
( mkdir -p build \
    && cd build \
      && cmake .. \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DSYSCONF_INSTALL_DIR=/etc \
    -DMAN_INSTALL_DIR=/usr/man \
    -DINCLUDE_INSTALL_DIR=/usr/include \
    -DLIB_SUFFIX:STRING=${LIBDIRSUFFIX} \
    -DLIB_INSTALL_DIR=/usr/lib${LIBDIRSUFFIX} \
    -DBUILD_SHARED_LIBS:BOOL=ON 
read    
make || exit 1 \
&& make install DESTDIR=$PKG || exit 1 ) 

mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild
cp -a  README  $PKG/usr/doc/$PKGNAME-$VERSION
chmod 644 $PKG/usr/doc/$PKGNAME-$VERSION/*


( cd $PKG 
  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/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/slack-desc
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$PKGNAME.SlackBuild


cd $PKG
chown -R root:root $PKG
if [ -x "$(which requiredbuilder 2>/dev/null)" ];then
ADD=$(ls /var/log/packages/ | sed -ne 's/\(numpy\)-\([^-]\+-[^-]\+-[^-]\+\)/\1 >= \2/p') \
requiredbuilder -y -v -s  $CWD $PKG
fi
/sbin/makepkg -l y -c n $OUTPUT/opencv-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}


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