#!/bin/sh

# Copyright 2007, 2008  Eric Hameleers, Eijdhoven, NL
# Copyright 2009, 2010  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.

#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.


PKGNAM=jasper
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-4_slack14.0}

# 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

case "$ARCH" in
  i486)      SLKCFLAGS="-O2 -march=i486 -mtune=i686"
             LIBDIRSUFFIX=""
             ;;
  s390)      SLKCFLAGS="-O2"
             LIBDIRSUFFIX=""
             ;;
  powerpc)   SLKCFLAGS="-O2"
             LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             LIBDIRSUFFIX="64"
             ;;
  athlon-xp) SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
             LIBDIRSUFFIX=""
             ;;
  *)         SLKCFLAGS="-O2"
             LIBDIRSUFFIX=""
             ;;
esac

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM
rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
cd $PKGNAM-$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 {} \;

# Taken from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469786
zcat $CWD/patches/jpc_dec.c.patch.gz | patch -p1 --verbose || exit 1

# Taken from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=413041;msg=88
zcat $CWD/patches/patch-libjasper-stepsizes-overflow.diff.gz | patch -p1 --verbose || exit 1

# Apply security fixes - taken from fedora
zcat $CWD/patches/jasper-1.900.1-CVE-2008-3520.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-CVE-2008-3522.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-CVE-2011-4516-CVE-2011-4517-CERT-VU-887409.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-CVE-2014-8138.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-CVE-2014-8157.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-CVE-2014-8158.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-CVE-2014-8137.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-CVE-2014-9029.patch.gz | patch -p1 --verbose || exit 1

# Apply fixes for issues discovered by coverity - taken from fedora
zcat $CWD/patches/jasper-1.900.1-Coverity-BAD_SIZEOF.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-CHECKED_RETURN.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-FORWARD_NULL.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-NULL_RETURNS.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-RESOURCE_LEAKS.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-UNREACHABLE.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/patches/jasper-1.900.1-Coverity-UNUSED_VALUE.patch.gz | patch -p1 --verbose || exit 1

CFLAGS="$SLKCFLAGS -fno-strict-overflow" \
CXXFLAGS="$SLKCFLAGS -fno-strict-overflow" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --localstatedir=/var \
  --sysconfdir=/etc \
  --mandir=/usr/man \
  --enable-shared \
  --disable-static \
  --program-prefix= \
  --program-suffix= \
  --build=$ARCH-slackware-linux

make || exit 1
make DESTDIR=$PKG install

mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a \
  COPYRIGHT INSTALL LICENSE NEWS README \
  $PKG/usr/doc/$PKGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;
for i in $(find $PKG/usr/man -type l -name "*.?") ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

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
/sbin/makepkg -l y -c n $TMP/${PKGNAM}-${VERSION}-${ARCH}-${BUILD}.txz