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#!/bin/bash
# Copyright 2006  Patrick J. Volkerding, Sebeka, MN, 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.
#
# Original script:
# ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/source/gzip/gzip.SlackBuild
#
# Changes: 20060921 - ported it to http://slack.sarava.org/slackbuilds standards
#

CWD="`pwd`"

if [ -f "/etc/slackbuildrc" ]; then
  source /etc/slackbuildrc
fi

if [ -f "/root/.slackbuildrc" ]; then
  source /root/.slackbuildrc
fi

PACKAGE="gzip"
PKGNAM="$PACKAGE"
VERSION=${VERSION:=1.3.5}
ARCH=${ARCH:=i486}
BUILD=${BUILD:=1rha}
SRC_DIR=${SRC:=$CWD}
TMP=${TMP:=/tmp}
REPOS=${REPOS:=$TMP}

RTOOL="wget"
PACKAGE_EXT="bz2"
SRC="$PACKAGE-$VERSION.tar.$PACKAGE_EXT"
URL="ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/source/gzip/$SRC"

SRC_DIR="$SRC_DIR/$PACKAGE"
mkdir -p $SRC_DIR

if [ "$PACKAGE_EXT" == "bz2" ]; then
  tarflag="j"
else
  tarflag="z"
fi

if [ "$RTOOL" == "wget" ] && [ ! -f "$SRC_DIR/$SRC" ]; then
  wget "$URL" -O "$SRC_DIR/$SRC"
fi

TMP="$TMP/$PACKAGE"
PKG=$TMP/package-${PKGNAM}
rm -rf $TMP
mkdir -p $PKG

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mcpu=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

cd $TMP
rm -rf ${PKGNAM}-${VERSION}
tar xvf$tarflag $SRC_DIR/${PKGNAM}-$VERSION.tar.bz2
cd ${PKGNAM}-$VERSION

zcat $CWD/gzip-1.3.5-huft-build-return-fix.patch.gz | patch -p0 --verbose || exit 1
zcat $CWD/gzip-1.3.5-gunzip-dir.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/gzip-1.3.5-gzip-perm.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/gzip-1.3.5-google-owl-bound.diff.gz | patch -p1 --verbose || exit 1

# Make sure ownerships and permissions are sane:
chown -R root:root .
find . -perm 666 -exec chmod 644 {} \;
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

# Configure:
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  $ARCH-slackware-linux

# Build and install:
make -j4 || exit 1
make install DESTDIR=$PKG || exit 1

# Strip binaries:
( 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
)

# Fix locations:
( cd $PKG
  mkdir bin
  mv usr/bin/gzip bin
  ( cd bin ; rm -rf gunzip )
  ( cd bin ; ln -sf gzip gunzip )
  ( cd bin ; rm -rf zcat )
  ( cd bin ; ln -sf gzip zcat )
  ( cd usr/bin ; rm -rf gzip )
  ( cd usr/bin ; ln -sf ../../bin/gzip gzip )
  ( cd usr/bin ; rm -rf gunzip )
  ( cd usr/bin ; ln -sf ../../bin/gunzip gunzip )
  ( cd usr/bin ; rm -rf zcat )
  ( cd usr/bin ; ln -sf ../../bin/zcat zcat )
  ( cd usr/bin ; rm -rf zcmp )
  ( cd usr/bin ; ln -sf zdiff zcmp )
  ( cd usr/bin ; rm -rf zegrep )
  ( cd usr/bin ; ln -sf zgrep zegrep )
  ( cd usr/bin ; rm -rf zfgrep )
  ( cd usr/bin ; ln -sf zgrep zfgrep )
)

# Compress and link manpages, if any:
if [ -d $PKG/usr/man ]; then
  ( cd $PKG/usr/man
    for manpagedir in $(find . -type d -name "man*") ; do
      ( cd $manpagedir
        for eachpage in $( find . -type l -maxdepth 1) ; do
          ln -s $( readlink $eachpage ).gz $eachpage.gz
          rm $eachpage
        done
        gzip -9 *.?
      )
    done
  )
fi

# Compress info files, if any:
if [ -d $PKG/usr/info ]; then
  ( cd $PKG/usr/info
    rm -f dir
    gzip -9 *
  )
fi

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -a \
  AUTHORS COPYING INSTALL NEWS README README-alpha THANKS TODO \
  $PKG/usr/doc/${PKGNAM}-$VERSION

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

cd $TMP/package-${PKGNAM}
makepkg -l y -c n $REPOS/${PKGNAM}-$VERSION-$ARCH-$BUILD.tgz

if [ "$CLEANUP" == "yes" ]; then
  rm -rf $TMP
fi