#!/bin/sh

# Slackware build script for tuxnes
# Written by Kyle Guinn <elyk03@gmail.com>
# Modified by the SlackBuilds.org project

set -e

PRGNAM=tuxnes
VERSION=0.75
ARCH=${ARCH:-i486}
BUILD=${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 -mtune=i686"
fi

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

# __FUNCTION__ is now a variable instead of a static string/macro in GCC 3.4+.
# Replace __FUNCTION__ with the actual function names where it appears.
patch -p0 < $CWD/emu.c.patch

# Regenerate the build system so that it will support $CFLAGS.
patch -p0 < $CWD/configure.in.patch
rm acconfig.h install-sh missing mkinstalldirs
aclocal
autoheader
automake -a
autoconf

CFLAGS="$SLKCFLAGS -fno-strict-aliasing" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --with-x

make
make install-strip DESTDIR=$PKG

# If the gtuxnes source tarball exists, install that too.
# http://www.sourcefiles.org/Emulators/Videogames/gtuxnes-0.75.tar.gz
( cd $TMP
  PRGNAM=gtuxnes
  VERSION=0.75
  if [ -e $CWD/$PRGNAM-$VERSION.tar.gz ]; then
    rm -rf $PRGNAM-$VERSION
    tar -xzvf $CWD/$PRGNAM-$VERSION.tar.gz
    cd $PRGNAM-$VERSION
    chown -R root:root .
    chmod -R u+w,go+r-w,a-s .

    # Patch the Makefile to support $CFLAGS
    patch -p0 < $CWD/Makefile.patch
    CFLAGS="$SLKCFLAGS" make
    cp gtuxnes $PKG/usr/bin
    chown root:root $PKG/usr/bin/gtuxnes
    chmod 0755 $PKG/usr/bin/gtuxnes

    mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
    cp -a AUTHORS CHANGES COPYING INSTALL README TODO \
      $PKG/usr/doc/$PRGNAM-$VERSION
  fi
)

( 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
)

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a AUTHORS BUGS CHANGES COPYING ChangeLog INSTALL* NEWS README THANKS \
  $PKG/usr/doc/$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