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#!/bin/bash

# Copyright 2008, 2009, 2010, 2018  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.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=libwmf
VERSION=0.2.8.4
BUILD=${BUILD:-7_slack14.2}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

NUMJOBS=${NUMJOBS:-" -j7 "}
TMP=${TMP:-/tmp}

PKG=$TMP/package-libwmf

rm -rf $PKG
mkdir -p $PKG

cd $TMP
rm -rf libwmf-$VERSION
tar xvf $CWD/libwmf-$VERSION.tar.?z* || exit 1
cd libwmf-$VERSION || exit 1

zcat $CWD/libwmf.png14.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 {} \;

# Miscellaneous patches from Fedora:
zcat $CWD/libwmf-0.2.8.4-fallbackfont.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-pixbufloaderdir.patch.gz | patch -p1 --verbose || exit 1

# Don't export the modified embedded GD library symbols, to avoid conflicts with
# the system libgd:
zcat $CWD/libwmf-0.2.8.4-reducesymbols.patch.gz | patch -p1 --verbose || exit 1

# Patch security issues:
zcat $CWD/libwmf-0.2.8.4-useafterfree.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2006-3376.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2004-0941.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2007-0455.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2007-2756.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2007-3472.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2007-3473.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2007-3477.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2009-3546.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2015-0848+CVE-2015-4588.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2015-4695.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2015-4696.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2016-10167.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2016-10168.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2016-9011.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2016-9317.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/libwmf-0.2.8.4-CVE-2017-6362.patch.gz | patch -p1 --verbose || exit 1

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --enable-static=no \
  --build=$ARCH-slackware-linux || exit 1

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

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/usr/doc
mv $PKG/usr/share/doc/libwmf $PKG/usr/doc/libwmf-$VERSION
rmdir $PKG/usr/share/doc
cp -a \
  AUTHORS BUILDING COPYING CREDITS NEWS README TODO \
  $PKG/usr/doc/libwmf-$VERSION

# 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

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

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