# Build/install Tcl the way Slackware's binary package is made:
CWD=`pwd`
TMP=${TMP:-/tmp}
if [ ! -d $TMP ]; then
  mkdir -p $TMP
fi
PKG=$TMP/package-tcl
rm -rf $PKG
mkdir -p $PKG

VERSION=8.4.18
# See also version number 8.4 in the symlinks below...)
ARCH=${ARCH:-i486}
BUILD=1

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

cd $TMP
rm -rf tcl$VERSION
tar xjvf $CWD/tcl$VERSION-src.tar.bz2 || exit 1
cd tcl$VERSION || exit 1
chown -R root:root .
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;
mkdir -p $PKG/usr/doc/tcl$VERSION
cp -a README license.terms $PKG/usr/doc/tcl$VERSION
cd unix
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --enable-shared \
  --enable-man-symlinks \
  --enable-man-compression=gzip \
  --enable-64bit \
  --build=$ARCH-slackware-linux
make -j4 || exit 1
make install DESTDIR=$PKG

# Some sources require Tcl'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/tcl-private/{generic,unix}
cp -a ../generic/*.h $PKG/usr/include/tcl-private/generic
cp -a ../unix/*.h $PKG/usr/include/tcl-private/unix
( cd $PKG/usr/include/tcl-private/generic
  rm -f tcl.h tclDecls.h tclPlatDecls.h
  ln -sf ../../tcl.h .
  ln -sf ../../tclDecls.h .
  ln -sf ../../tclPlatDecls.h
)

( cd $PKG/usr/bin
  rm -f tclsh
  ln -sf tclsh8.4 tclsh
)
( cd $PKG/usr/lib
  rm -f libtcl.so
  ln -sf libtcl8.4.so libtcl.so
)

( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "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 $PKG
makepkg -l y -c n ../tcl-$VERSION-$ARCH-$BUILD.tgz