#!/bin/sh

# Copyright 2008, 2009, 2010  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 giflib-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}
CWD=$(pwd)
TMP=${TMP:-/tmp}
ARCH=alpha
PKG=$TMP/package-giflib
TARGET=$ARCH-alphaslack-linux

rm -rf $PKG
mkdir -p $TMP $PKG
(cd $TMP
rm -rf giflib-$VERSION
tar xf $CWD/giflib-$VERSION.tar.?z* || exit 1
cd giflib-$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 {} \;

./configure \
 --prefix=/usr \
 --libdir=/usr/lib${LIBDIRSUFFIX} \
 --mandir=/usr/man \
 --with-x=no \
 --disable-static \
 --build=$TARGET

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

# Make some compatibility symlinks
( cd $PKG/usr/lib${LIBDIRSUFFIX}
 ln -s libgif.so.4 libungif.so.4
 ln -s libgif.so libungif.so
)

mkdir -p $PKG/usr/doc/giflib-$VERSION
cp -a AUTHORS BUGS COPYING DEVELOPERS INSTALL NEWS ONEWS README TODO $PKG/usr/doc/giflib-$VERSION
cp -a doc $PKG/usr/doc/giflib-$VERSION/html
rm $PKG/usr/doc/giflib-$VERSION/html/Makefile*

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog ]; then
 DOCSDIR=$(echo $PKG/usr/doc/*-$VERSION)
 cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
 touch -r ChangeLog $DOCSDIR/ChangeLog
fi

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

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

cd $PKG
makepkg -l y -c n $TMP/giflib-$VERSION-$ARCH-$BUILD.tgz
) 2>&1 | tee $TMP/giflib.build.log