# Description: The GNU Compiler Collection Java Front End
# URL:         http://gcc.gnu.org
# Maintainer:  John Vogel, jvogel4 at stny dot rr dot com
# Depends on:  gcc6 unzip zip

name=gcj6-jdk
version=6.5.0
release=1
source=(https://gcc.gnu.org/pub/gcc/releases/gcc-$version/gcc-$version.tar.xz
	gcc-nocheck-fixincludes.patch gcc-4.7.3-multilib-dirs.patch libsanitizer.patch
	ftp://gcc.gnu.org/pub/java/ecj-4.9.jar
	https://oss.sonatype.org/content/repositories/releases/org/antlr/antlr-runtime/3.5.2/antlr-runtime-3.5.2.jar)

build() {
	export CC='gcc-6'
	export CXX='g++-6'
	export CFLAGS="-O2 -march=x86-64"
	export CXXFLAGS="${CFLAGS}"

	patch -d gcc-$version -p1 -i $SRC/gcc-nocheck-fixincludes.patch
	patch -d gcc-$version -p1 -i $SRC/gcc-4.7.3-multilib-dirs.patch
	patch -d gcc-$version -p2 -i $SRC/libsanitizer.patch

	mv $SRC/ecj-4.9.jar gcc-$version/ecj.jar

	mkdir build
	cd build
	../gcc-$version/configure \
		--prefix=/usr \
		--libexecdir=/usr/lib \
		--disable-bootstrap \
		--enable-version-specific-runtime-libs \
		--enable-languages=java \
		--enable-threads=posix \
		--enable-__cxa_atexit \
		--enable-clocale=gnu \
		--enable-shared \
		--disable-nls \
		--with-system-zlib \
		--enable-multilib \
		--enable-java-home \
		--with-jvm-root-dir=/usr/lib/java/$name \
		--with-java-home=/usr/lib/java/$name/jre \
		--with-jvm-jar-dir=/usr/lib/java/$name/jvm-exports \
		--with-antlr-jar=$SRC/antlr-runtime-3.5.2.jar \
		--with-pkgversion="CRUX-x86_64-multilib" \
		--program-suffix="-${version%%.*}"

	make
	make -j1 DESTDIR=$PKG install-target-libjava

	cd gcc
	make -j1 DESTDIR=$PKG java.install-common java.install-man

	target_alias=$(sed -n -e 's/^target=\(.*\)$/\1/p' Makefile)

	ln -sr $PKG/usr/lib/gcc/$target_alias/$version/libgcj.so.17.0.0 $PKG/usr/lib/libgcj.so.17
	ln -sr $PKG/usr/lib/gcc/$target_alias/$version/libgcj_bc.so.1.0.0 $PKG/usr/lib/libgcj_bc.so.1
	ln -sr $PKG/usr/lib/gcc/$target_alias/$version/libgcj-tools.so.17.0.0 $PKG/usr/lib/libgcj-tools.so.17
	ln -sr $PKG/usr/lib/gcc/$target_alias/$version/libgij.so.17.0.0 $PKG/usr/lib/libgij.so.17

	install -m755 jc1 $PKG/usr/lib/gcc/$target_alias/$version/
	install -m755 jvgenmain $PKG/usr/lib/gcc/$target_alias/$version/

	$PKG/usr/bin/gcj-6 -B /usr/lib/gcc/$target_alias/$version -o $PKG/usr/bin/ecj \
	$PKG/usr/share/java/ecj.jar --main=org.eclipse.jdt.internal.compiler.batch.Main

	ln -sr $PKG/usr/bin/ecj $PKG/usr/lib/java/$name/bin/javac
	ln -sr $PKG/usr/bin/jcf-dump-6 $PKG/usr/lib/java/$name/bin/javap

	mv $PKG/usr/lib/gcc/$target_alias/$version/pkgconfig $PKG/usr/lib

	rm -rf $PKG/usr/lib/gcc/$target_alias/lib{,32}
	rm -rf $PKG/usr/lib/gcc/$target_alias/$version/{,32/}{*.a,*.o,pkgconfig}
	rm -f $PKG/usr/lib/gcc/$target_alias/$version/include/unwind.h
	rm -f $PKG/usr/lib/java/$name/jre/lib/amd64/libjawt.so
	rm -rf $PKG/usr/share/{info,gcc-$version}
	rm -f $PKG/usr/bin/${target_alias}-*
	rm -rf $PKG/usr/include
	rm -rf $PKG/usr/share/man/man7

	# Broken link, no actual libjawt.so found, even in build directory
	find $PKG/usr/lib -name 'libjawt.so' -delete
	# The libtool archive files reference the build directories, purge until evidenced to be needed
	find $PKG/usr/lib -name '*.la' -delete

	for l in $(find $PKG/usr/lib/java/$name/include -lname '*/pkg/*/*.h'); do
		ln -srf "$(find $PKG/usr/lib/gcc/$target_alias/$version/include -name ${l##*/} -type f)" $l
	done
}