slackware-current/source/l/giflib/giflib.SlackBuild

#!/bin/bash

# Copyright 2008, 2009, 2010, 2015, 2017, 2018, 2019  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=giflib
VERSION=${VERSION:-$(echo giflib-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

# 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

TMP=${TMP:-/tmp}
PKG=$TMP/package-giflib

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf giflib-$VERSION
tar xvf $CWD/giflib-$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 {} \+

# Include deprecated functions (including GifQuantizeBuffer) into the libgif.so
# to fix older packages that require those functions. Really, when functions
# were removed from the shared library this should have merited a shared
# library .soname version bump.
zcat $CWD/giflib.GifQuantizeBuffer.diff.gz | patch -p1 --verbose || exit 1

make PREFIX=/usr LIBDIR=/usr/lib${LIBDIRSUFFIX} MANDIR=/usr/man $NUMJOBS || make || exit 1
make PREFIX=/usr LIBDIR=/usr/lib${LIBDIRSUFFIX} MANDIR=/usr/man install DESTDIR=$PKG || exit 1

# Don't ship static library:
rm $PKG/usr/lib${LIBDIRSUFFIX}/*.a

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Make some compatibility symlinks
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  ln -s libgif.so.7 libungif.so.7
  ln -s libgif.so libungif.so
)

# Install these obsolete utilities if they were built:
for obsolete in gifecho giffilter gifinto gifsponge ; do
  if [ -r $obsolete ]; then
    cp $obsolete $PKG/usr/bin/$obsolete
  fi
done

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

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

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*,*.in,*.1,*.xml}

# 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 $TMP/giflib-$VERSION-$ARCH-$BUILD.txz