#!/bin/sh

# Copyright 2008, 2009, 2010  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.

# Slackware build script for emacs-22

# Written by Dušan Stefanović (stefanovic.dusan@gmail.com)
# Modified by Robby Workman <rworkman@slackbuilds.org>
# Modified by Patrick Volkerding <volkerdi@slackware.com>

PKGNAM=emacs
VERSION=${VERSION:-23.2}
BUILD=${BUILD:-1}

# 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

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

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

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
cd $PKGNAM-$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="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --program-prefix="" \
  --program-suffix="" \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --enable-static=no \
  --enable-shared=yes \
  --with-x \
  --with-x-toolkit=gtk \
  --build=${ARCH}-slackware-linux

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

( cd $PKG/usr/bin
  rm emacs
  mv emacs-${VERSION} emacs-${VERSION}-with-x11
  ln -sf emacs-${VERSION}-with-x11 emacs
)

# Also add a version of the binary that is not linked to X11:
cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
cd $PKGNAM-$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 {} \;

zcat $CWD/emacs.gtk-menu.patch.gz | patch -p1 || exit 1
zcat $CWD/emacs.libpng14.patch.gz | patch -p1 || exit 1

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --program-prefix="" \
  --program-suffix="" \
  --mandir=/usr/man \
  --infodir=/usr/info \
  --enable-static=no \
  --enable-shared=yes \
  --with-x=no \
  --build=${ARCH}-slackware-linux

make $NUMJOBS || make || exit 1

# Install the non-x version:
cat src/emacs > $PKG/usr/bin/emacs-${VERSION}-no-x11
chown root:root $PKG/usr/bin/emacs-${VERSION}-no-x11
chmod 1755 $PKG/usr/bin/emacs-${VERSION}-no-x11

# I don't care for broken permissions.
chmod 755 $PKG/var/games/emacs
chown -R games:root $PKG/var/games/emacs

# This avoids a collision with Exuberant Ctags...
mv $PKG/usr/bin/ctags $PKG/usr/bin/ctags-emacs
mv $PKG/usr/man/man1/ctags.1 $PKG/usr/man/man1/ctags-emacs.1

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

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

( cd $PKG/usr/info
  rm -f dir
  gzip -9 *
)

mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a \
  AUTHORS COPYING* ChangeLog INSTALL README \
  $PKG/usr/doc/$PKGNAM-$VERSION

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh

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