#!/bin/sh
PKGNAM=libpng
VERSION=1.2.35
BUILD=1_slamd64_12.1

. /etc/pkghelpers
pkghelpers_env

cd $TMP
rm -rf libpng-$VERSION $PKG
tar xjvf $CWD/libpng-$VERSION.tar.bz2
cd libpng-$VERSION
pkghelpers_permissions

# Need this to substitute macros, but we'll keep using the
# pre-built Makefile for now anyway...
./configure --prefix=/usr --libdir=/usr/lib$LIBSUFFIX

# Might as well link to -lz -lm, since the ./configure seems
# to be doing it that way now...  finally.  That'll prevent
# a couple of emails a week.  :-)
zcat $CWD/libpng.libs.diff.gz | patch -p1 --verbose || exit 1

# Need this to substitute macros, but we'll keep using the
# pre-built Makefile for now anyway...
./configure --prefix=/usr

# Link the custom makefile:
ln -sf scripts/makefile.linux ./Makefile

make prefix=/usr LIBPATH=/usr/lib$LIBSUFFIX
make install prefix=/usr LIBPATH=/usr/lib$LIBSUFFIX DESTDIR=$PKG

# This symlink is needed to keep old applications running:
# I guess the real lib used the major number 3, then 0 for
# a short while, and now .3 again.  Hopefully it will stay
# this way as it was .3 in Slackware 10.2.  One can hope.
( cd $PKG/usr/lib$LIBSUFFIX
  if [ ! -e libpng.so.0 -a -e libpng.so.3 ]; then
    ln -sf libpng.so.3 libpng.so.0
  fi
  sed -i "s,/lib$,/lib$LIBSUFFIX," pkgconfig/*.pc
)

mkdir -p $PKG/usr/doc/libpng-$VERSION
cp -a \
  ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO libpng.txt example.c \
  $PKG/usr/doc/libpng-$VERSION
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
pkghelpers_fixup
pkghelpers_makepkg