# $Header: /home/cvsd/magellan-cvs/magellan-src/toolchain/toolchain-libstdc++/toolchain-libstdc++-3.4.3-r3.smage2,v 1.2 2005-07-29 13:44:31 niro Exp $

PNAME="toolchain-libstdc++"
PVER="3.4.3"
PBUILD="r3"

SRCFILE="gcc-${PVER}.tar.bz2"
SRCDIR="${BUILDDIR}/gcc-${PVER}"

# languages to build into gcc
MyLanguages=c,c++

SRC_URI=(
	mirror://gcc/${SRCFILE}
	mirror://gcc/gcc-${PVER}-no_fixincludes-1.patch
	mirror://gcc/gcc-${PVER}-linkonce-1.patch
	mirror://gcc/gcc-${PVER}-fix_configure_for_target_native-1.patch
	mirror://gcc/gcc-${PVER}-magellan-version.patch
)

# need: libstdc++ to run, tcsh to compile ada
# compile time: unkown (Athlon XP 1900+, 512mb DDR400)

## global toolchain var ##
# export CFLAGS, CHOST, TOOLCHAIN_PREFIX
export CFLAGS="-mtune=i486 -Os -pipe"
export CXXFLAGS="${CFLAGS}"
export TOOLCHAIN_PREFIX="/tools"

zapmost() {
	local rootdir
	rootdir="${1}/"
	[ ! -e  "$rootdir" ] && echo "zapmost: $rootdir not found; skipping..." && return 1
	install -d ${BUILDDIR}/zap
	local dirs
	shift
	local x
	for x in ${*}
	do
		if [ "${x##*/}" = "${x}" ]
		then
			#one deep
			mv ${rootdir}${x} ${BUILDDIR}/zap
		else
			#more than one deep; create intermediate directories
			dirs=${x%/*}
			install -d ${BUILDDIR}/zap/${dirs}
			mv ${rootdir}${x} ${BUILDDIR}/zap/${x}
		fi
	done
	rm -rf ${rootdir}*
	mv ${BUILDDIR}/zap/* ${rootdir}
}


src_prepare() {
	munpack ${SRCFILE} || die
	cd ${SRCDIR}

	mpatch -Np1 gcc-${PVER}-no_fixincludes-1.patch || die
	mpatch -Np1 gcc-${PVER}-linkonce-1.patch || die
	mpatch -Np1 gcc-${PVER}-fix_configure_for_target_native-1.patch || die
	mpatch -Np0 gcc-${PVER}-magellan-version.patch || die

	# suppress installation of libiberty, as we will be
	# using the one from binutils
	sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in || die

	mkdir ${SRCDIR}/build || die
	cd ${SRCDIR}/build
}

src_compile() {
	cd ${SRCDIR}/build

	../configure \
		--host=${CHOST} \
		--prefix=${TOOLCHAIN_PREFIX} \
		--enable-shared \
		--enable-threads=posix \
		--enable-__cxa_atexit \
		--enable-clocale=gnu \
		--disable-checking \
		--disable-libunwind-exceptions \
		--with-system-zlib \
		--enable-long-long \
		--enable-cstdio=stdio \
		--enable-languages=${MyLanguages} \
		--disable-libstdcxx-pch \
		|| die

	# bootstrap-lean seems to be broken
	# gcc does not like MAKEOPTS >= -j1
	make bootstrap || die
}

src_install() {
	cd ${SRCDIR}/build
	install -d ${BINDIR}/lib || die

	make DESTDIR=${BINDIR} install || die

	# deletes everything excluding libgcc_s and libstdc++
	zapmost ${BINDIR}${TOOLCHAIN_PREFIX}/lib libgcc_s*.* libstdc++*.* || die

	# other not needed
	rm -rf ${BINDIR}${TOOLCHAIN_PREFIX}/lib || die
	rm -rf ${BINDIR}${TOOLCHAIN_PREFIX}/{bin,include,share} || die
	rm -rf ${BINDIR}${TOOLCHAIN_PREFIX}/{info,man,libexec} || die
}