#!/bin/bash

# clisp.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter <mozes@slackware.com>
# 19-Jul-2004

# Record toolchain & other info for the build log:
slackbuildinfo

ulimit -s unlimited

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGSERIES/$PKGNAM
export PORTCWD=$PWD

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Unset them from the defaults set by the slackdev script.
# With the soft float port, clisp was broken for a long time and the whole
# lot was quite fragile.  If in the hard float port we can set the CFLAGS then
# we can try at a later date once we get clisp built.
unset SLKCFLAGS

# Determine the CFLAGS for the known architectures:
#case $ARCH in
#   arm)     export SLKCFLAGS="-O0"
#            export LIBDIRSUFFIX=""
#            ;;
#   *)       export SLKCFLAGS="-O0"
#esac

# Bundled libraries:
#FFCALLVER=20120424cvs
FFCALLVER=1.12

######################### Build ffcall ####################################
function build_ffcall() {
# Build ffcall - needed for --dynamic-ffi with clisp.
cd $TMPBUILD

# This source & patch set are taken from Fedora.
#tar xvvf $CWD/ffcall-$FFCALLVER.tar.?z* || exit 1
#cd ffcall* || exit 1
tar xvvf $PORTCWD/sources/ffcall-[0-9]*.tar.?z* || exit 1
cd libffcall* || exit 1
slackhousekeeping
auto_apply_patch $PORTCWD/sources/ffcall-arm.patch.xz || exit 1
auto_apply_patch $PORTCWD/sources/ffcall-trampoline.patch.xz || exit 1

# Remove prebuilt object files:
find . -name "*.o" | xargs rm -f

# Configure:
CFLAGS="$SLKCFLAGS -fPIC -DMAP_VARIABLE=2" \
./configure \
   --prefix=/usr \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --mandir=/usr/man \
   --enable-shared \
   --enable-static \
   --build=$ARCH-slackware-linux-gnueabi || exit 1

# Don't do anymore than 1 parallel build - it breaks.
make || exit 1
make install DESTDIR=$PKG
# We need ffcall installed in order to build clisp:
make install

# Don't need this:
rm -f $PKG/usr/lib/*.la

# Move docs around:
mkdir -pm755 $PKG/usr/doc/clisp-$VERSION/ffcall-$FFCALLVER
install -vpm644 README NEWS COPYING \
                $PKG/usr/doc/clisp-$VERSION/ffcall-$FFCALLVER
mv -f $PKG/usr/share/html/* $PKG/usr/doc/clisp-$VERSION/ffcall-$FFCALLVER
rmdir $PKG/usr/share/html/
rmdir $PKG/usr/share/
}

######################### Build clisp ####################################

function build_clisp () {
# Extract source:
cd $TMPBUILD
#tar xvvf $CWD/clisp-$VERSION.tar.?z* || exit 1
tar xvvf $PORTCWD/sources/$PKGNAM-$VERSION*.tar.xz
cd $PKGNAM* || exit 1
slackhousekeeping

# Apply patches:
#tar xf $PORTCWD/sources/clisp*debian*z
for pf in \
   clisp-arm.patch.xz \
   clisp-gcc5.patch.xz \
   clisp-db.patch.xz \
   clisp-format.patch.xz \
   clisp-libsvm.patch.xz \
   clisp-linux.patch.xz \
  ; do auto_apply_patch $PORTCWD/sources/$pf || exit 1
done

# Stop using distcc:
export PATH=$( echo $PATH | sed -e 's?/tmp/DISTCC:??g' )
unset NUMJOBS

# Configure:
export CFLAGS="$SLKCFLAGS -Wa,--noexecstack"
export LDFLAGS="$SLKCFLAGS -Wl,-z,noexecstack"
FORCE_UNSAFE_CONFIGURE=1 \
./configure \
   --cbc builddir \
   --prefix=/usr \
   --mandir=/usr/man \
   --libdir=/usr/lib${LIBDIRSUFFIX} \
   --docdir=/usr/doc/clisp-$VERSION \
   --with-module=bindings/glibc \
   --with-module=clx/new-clx \
   --with-module=pcre \
   --with-module=rawsock \
   --with-module=zlib || exit 1

#   --with-dynamic-ffi \
#   --with-dynamic-modules \

# Newer versions of clisp don't have this anymore:
#    --with-module=wildcard \

# Build:
make -C builddir || exit 1

# Install into package:
make -C builddir install DESTDIR=$PKG || exit 1

# Move docs around:
#mv $PKG/usr/share/doc/clisp/* $PKG/usr/doc/clisp-$VERSION
rm -r $PKG/usr/share/doc
mv $PKG/usr/share/man $PKG/usr/man
}

# Build:
build_ffcall
build_clisp

# If necessary, start the fakeroot server so we can set file/dir ownerships:
start_fakeroot

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh
slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links