#!/bin/sh

# Copyright 2008, 2009, 2010, 2011, 2013, 2017  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.

PKGNAM=expat
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-8_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

# Choose an entropy source:
if [ "$ENTROPY" = "" ]; then
  #ENTROPY="-DHAVE_GETRANDOM"
  #ENTROPY="-DHAVE_SYSCALL_GETRANDOM"
  #ENTROPY="-DHAVE_ARC4RANDOM_BUF"
  ENTROPY="-DXML_POOR_ENTROPY"
fi

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

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

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf expat-$VERSION
tar xvf $CWD/expat-$VERSION.tar.?z || exit 1
cd expat-$VERSION

chown -R root:root .
find . -perm 777 -exec chmod 755 {} \;
find . -perm 664 -exec chmod 644 {} \;

zcat $CWD/178d26f50af21ec23d6e43814b9b602590b5865c.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/5f100ffa78b74da8020b71d1582a8979193c1359.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/5c168279c5ad4668e5e48fe13374fe7a7de4b573.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/3f0a0cb644438d4d8e3294cd0b1245d0edb0c6c6.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/9b4ce651b26557f16103c3a366c91934ecd439ab.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/a2fe525e660badd64b6c557c2b1ec26ddc07f6e4.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/eb0362808b4f9f1e2345a0cf203b8cc196d776d9.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/efcb347440ade24b9f1054671e6bd05e60b4cafd.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/9288cd5474bf6d3d0c037c247f9581d5e4df5097.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/f178826bb1e9c8ee23202f1be55ad4ac7b649e84.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/a976e32abd257728a51dc55cf3d4ebee5b853459.patch.gz | patch -p2 --verbose || exit 1
zcat $CWD/56967f83d68d5fc750f9e66a9a76756c94c7c173.patch.gz | patch -p2 --verbose || exit 1

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --docdir=/usr/doc/expat-$VERSION \
  --mandir=/usr/man \
  --disable-static \
  --without-docbook \
  --build=$ARCH-slackware-linux || exit 1

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

# No thanks, we handle the docs manually:
rm -rf $PKG/usr/share/doc

( 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 $PKG/usr/doc/expat-$VERSION
cp -a  \
  COPYING* README* doc/reference.html \
  $PKG/usr/doc/expat-$VERSION
gzip -9 $PKG/usr/man/man?/*.?
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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