#!/bin/sh

# Copyright 2008, 2009, 2010, 2011  Patrick J. Volkerding, Sebeka, Minnesota, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

VERSION=${VERSION:-$(echo SDL-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
IMAGE=${IMAGE:-$(echo SDL_image-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
MIXER=${MIXER:-$(echo SDL_mixer-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
NET=${NET:-$(echo SDL_net-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
TTF=${TTF:-$(echo SDL_ttf-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}

BUILD=${BUILD:-5}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i486 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

NUMJOBS=${NUMJOBS:-" -j7 "}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-sdl

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf sdl-$VERSION
tar xf $CWD/SDL-$VERSION.tar.?z* || exit 1
cd SDL-$VERSION
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

zcat $CWD/sdl.linux-2.6.31.input_absinfo.diff.gz | patch -p1 --verbose || exit 1

# We must use --disable-x11-shared or programs linked with SDL will
# crash on machines that use the closed source nVidia drivers.

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --disable-arts \
  --disable-esd \
  --enable-shared=yes \
  --enable-static=no \
  --disable-x11-shared

make $NUMJOBS || make || exit 1

# Spam /, for mixer/image later on:
make install
# install to package:
make install DESTDIR=$PKG || exit 1
mkdir -p $PKG/usr/doc/SDL-$VERSION/html
cp -a docs/index.html $PKG/usr/doc/SDL-$VERSION
cp -a docs/html/*.html $PKG/usr/doc/SDL-$VERSION/html
cp -a \
  BUGS COPYING CREDITS INSTALL README* TODO WhatsNew \
  $PKG/usr/doc/SDL-$VERSION

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

# Add SDL_image:
cd $TMP
rm -rf SDL_image-$IMAGE
tar xf $CWD/SDL_image-$IMAGE.tar.?z* || exit 1
cd SDL_image-$IMAGE
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

# we don't want sdl to load the libs with dlopen(), gcc is smarter...
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-shared=yes \
  --enable-static=no \
  --enable-jpg-shared=no \
  --enable-png-shared=no \
  --enable-tif-shared=no

make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1
mkdir -p $PKG/usr/doc/SDL_image-$IMAGE
cp -a \
  CHANGES COPYING README \
  $PKG/usr/doc/SDL_image-$IMAGE

# Add SDL_mixer:
cd $TMP
rm -rf SDL_mixer-$MIXER
tar xf $CWD/SDL_mixer-$MIXER.tar.?z* || exit 1
cd SDL_mixer-$MIXER

# Don't look for things in /usr/local, since this is an installed package:
zcat $CWD/SDL_mixer.usrlocal.diff.gz | patch -p1 --verbose || exit 1

# Install patched static libmikmod:
unzip libmikmod-3.1.12.zip
( cd libmikmod-3.1.12.patched
  ./configure \
  --prefix=/usr/local \
  --libdir=/usr/local/lib${LIBDIRSUFFIX} \
  --with-pic \
  --enable-shared=no \
  --enable-static=yes
  make $NUMJOBS || make || exit 1
  make install
)

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-music-mod \
  --enable-shared=yes \
  --enable-static=no

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

mkdir -p $PKG/usr/doc/SDL_mixer-$MIXER
cp -a \
  CHANGES COPYING README \
  $PKG/usr/doc/SDL_mixer-$MIXER

# We do not want to try to pull in -lmikmod, since that was linked static:
sed -i -e "s/ -lmikmod//g" $PKG/usr/lib${LIBDIRSUFFIX}/libSDL_mixer.la

# Add SDL_net:
cd $TMP
rm -rf SDL_net-$NET
tar xf $CWD/SDL_net-$NET.tar.?z* || exit 1
cd SDL_net-$NET
chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-shared=yes \
  --enable-static=no

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

mkdir -p $PKG/usr/doc/SDL_net-$NET
cp -a \
  CHANGES COPYING README \
  $PKG/usr/doc/SDL_net-$NET

# Add SDL_ttf:
cd $TMP
rm -rf SDL_ttf-$TTF
tar xf $CWD/SDL_ttf-$TTF.tar.?z* || exit 1
cd SDL_ttf-$TTF

#zcat $CWD/SDL_ttf-2.0.8-noftinternals.diff.gz | patch -p1 --verbose || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \; -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-shared=yes \
  --enable-static=no

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

mkdir -p $PKG/usr/doc/SDL_ttf-$TTF
cp -a \
  CHANGES COPYING README \
  $PKG/usr/doc/SDL_ttf-$TTF

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

gzip -9 $PKG/usr/man/man?/*.?

cd $PKG
/sbin/makepkg -l y -c n $TMP/sdl-$VERSION-$ARCH-$BUILD.txz