#!/bin/bash

# Slackware build script for mjpegtools


PRGNAM=mjpegtools
VERSION=1.9.0rc3
ARCH=${ARCH:-i686}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
CWD=$(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 -fomit-frame-pointer"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP || exit 1
rm -rf $PRGNAM-$VERSION
tar -xzvf $CWD/$PRGNAM-$VERSION.tar.gz || exit 1
cd $PRGNAM-$VERSION || exit 1
chown -R root:root .
chmod -R u+w,go+r-w,a-s .



CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --enable-shared=yes \
  --enable-simd-accel \
  --enable-static=no

####KLUDGE BELOW####

## mjpegtools uses a cpuinfo.sh script to generate it's own compile flags
## these are not always correct and cause compile time problems with different
## CPUs. Dual Core Intels are seen as nocona, which is 64bit options
## Athlons are seen as k8 which is not a compile time option for
## athlon-xp 32bit cpus. Even if you are using x86_64 your custom $SLCKFLAGS
## are still passed. This error was discussed many times on the mjpegtools
## mailing list.

find -name Makefile -exec sed -i -e 's:-march=nocona -mtune=nocona::' {} \;
find -name Makefile -exec sed -i -e 's:-march=k8 -mtune=k8::' {} \;
find -name Makefile -exec sed -i -e 's:-march=pentium3 -mtune=pentium3::' {} \;


make || exit 1
make install DESTDIR=$PKG || exit 1

( 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
)

( 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
)

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS BUGS ChangeLog CHANGES COPYING INSTALL INSTALL.real \
  mjpeg_howto.txt NEWS PLANS READM* TODO $PKG/usr/doc/$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

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