#!/bin/sh

# Copyright 2008  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.

VERSION=1.4.12
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-m4

NUMJOBS=${NUMJOBS:--j6}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf m4-$VERSION
tar xvf $CWD/m4-$VERSION.tar.bz2 || exit 1
cd m4-$VERSION || 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 {} \;

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --docdir=/usr/doc/m4-$VERSION \
  --build=$ARCH-slackware-linux

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

# Compress and if needed symlink the man pages:
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 pages and purge "dir" file from the package:
if [ -d $PKG/usr/info ]; then
    rm -f $PKG/usr/info/dir
    gzip -9 $PKG/usr/info/*
fi

# ye olde cruft
#
# ansi2knr is no longer part of the m4 sources.
# Geez, I'm gonna have to learn ANSI C now...
#
#( cd src ; make ansi2knr )
#gzip -9 $PKG/usr/info/m4.info.gz
#cat src/m4 > $PKG/usr/bin/m4
#chmod 755 $PKG/usr/bin/*

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 $PKG/usr/doc/m4-$VERSION
cp -a \
  BACKLOG COPYING* NEWS README THANKS TODO examples \
  $PKG/usr/doc/m4-$VERSION
head -n 357 ChangeLog > $PKG/usr/doc/m4-$VERSION/ChangeLog
touch -r ChangeLog $PKG/usr/doc/m4-$VERSION/ChangeLog
chmod 644 $PKG/usr/doc/m4-$VERSION/COPYING*

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/m4-$VERSION-$ARCH-$BUILD.tgz