#!/bin/sh

# Copyright 2008, 2009  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=${VERSION:-8.5.8}
# See also version number 8.5 in the symlinks below...)
BUILD=${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

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

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "arm" ]; then
  SLKCFLAGS="-O2 -march=armv4 -mtune=xscale"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "armel" ]; then
  SLKCFLAGS="-O2 -march=armv4t"
  LIBDIRSUFFIX=""
fi

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-tk
rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf tk$VERSION
tar xvf $CWD/tk$VERSION-src.tar.?z* || exit 1
cd tk$VERSION || exit 1
sed -i -e "s#^TK_LIBRARY='\$(prefix)/lib/#TK_LIBRARY='\$(libdir)/#" \
  unix/configure

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 {} \;

mkdir -p $PKG/usr/doc/tk$VERSION
cp -a README license.terms $PKG/usr/doc/tk$VERSION

cd unix
make clean
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --enable-shared \
  --enable-threads \
  --enable-64bit \
  --enable-man-symlinks \
  --enable-man-compression=gzip \
  --build=$ARCH-slackware-linux

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

# Some sources require Tk's private headers, which might not be the
# best thing but we'll include them where we've seen other teams
# doing the same thing:
mkdir -p $PKG/usr/include/tk-private/{generic,unix}
cp -a ../generic/*.h $PKG/usr/include/tk-private/generic
cp -a ../unix/*.h $PKG/usr/include/tk-private/unix
( cd $PKG/usr/include/tk-private/generic
  rm -f tk.h tkDecls.h tkPlatDecls.h
  ln -sf ../../tk.h .
  ln -sf ../../tkDecls.h .
  ln -sf ../../tkPlatDecls.h
  for file in $(ls ../unix/*.h) ; do ln -sf $file ; done
)

( cd $PKG/usr/bin
  rm -f wish
  ln -sf wish8.5 wish
)
( cd $PKG/usr/lib${LIBDIRSUFFIX}
  rm -f libtk.so
  ln -sf libtk8.5.so libtk.so
)

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

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