# $Id$

PNAME="libstdc++-v3"
PVER="3.3.6"
PBUILD="r8"

PCATEGORIE="sys-libs"
STATE="unstable"

DESCRIPTION="Compat GNU C++ version 3 library."
HOMEPAGE="http://www.gnu.org/software/gcc/gcc.html"

DEPEND=">= sys-apps/base-files-0.1"

SDEPEND=">= sys-dev/binutils-2.20
	>= virtual/kernel-headers"

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

sminclude cleanutils mtools

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

# stripping is not allowed
export NOSTRIP=true

# prevent issues with gcc-3.4.x
export CFLAGS="-O"
export CXXFLAGS="-O"

# check for crosscompile or export default CHOST
if [[ -z ${CCHOST} ]]
then
	# no crosscompile defined
	export CCHOST=${CHOST}
else
	# use crosscompile host
	export CCHOST=${CCHOST}
fi

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

	mpatch gcc-${PVER}-no_fixincludes-1.patch || die
	mpatch gcc-${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

	install -d ${SRCDIR}/build || die
	cd ${SRCDIR}/build
}

src_compile()
{
	cd ${SRCDIR}/build

	# configure only with c++
	../configure \
		--host=${CHOST} \
		--target=${CCHOST} \
		--prefix=/usr \
		--mandir=/usr/share/man \
		--infodir=/usr/share/info \
		--libdir=/usr/$(mlibdir) \
		--libexecdir=/usr/$(mlibdir) \
		--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=c++ \
		|| die

	touch ${SRCDIR}/gcc/c-gperf.h || die

	# build only libstdc++
	mmake all-target-libstdc++-v3 || die
}

src_install()
{
	cd ${SRCDIR}/build
	minstalldir /etc/env.d || die
	minstalldir /usr/$(mlibdir)/libstdc++-v3 || die

	make prefix=/usr \
		bindir=/usr/bin \
		includedir=/usr/include \
		datadir=/usr/share \
		mandir=/usr/share/man \
		infodir=/usr/share/info \
		DESTDIR=${BINDIR} \
		LIBPATH=/usr/$(mlibdir) \
		install-target-libstdc++-v3 || die

	# deletes everything excluding libstdc++*.*
	zapmost ${BINDIR}/usr/$(mlibdir) libstdc++.so.* libstdc++-v3 || die

	# clean up the other stuff
	rm -rf ${BINDIR}/$(mlibdir) || die
	rm -rf ${BINDIR}/usr/{include,share} || die

	# now move the libs to a proper location
	mv ${BINDIR}/usr/$(mlibdir)/libstdc++.so.* ${BINDIR}/usr/$(mlibdir)/libstdc++-v3 || die

	# for x86_64 doing the same for /usr/lib as well (-m32 libs)
	if [[ ${ARCH} = x86_64 ]]
	then
		minstalldir /usr/lib/libstdc++-v3 || die
		zapmost ${BINDIR}/usr/lib libstdc++.so.* libstdc++-v3 || die
		mv ${BINDIR}/usr/lib/libstdc++.so.* ${BINDIR}/usr/lib/libstdc++-v3 || die
	fi

	# strip the libraries
	find ${BINDIR} | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded || die

	# environment
	echo "LDPATH=\"/usr/$(mlibdir)/libstdc++-v3\"" > ${BINDIR}/etc/env.d/99libstdc++-v3 || die
	if [[ ${ARCH} = x86_64 ]]
	then
		echo 'LDPATH="/usr/lib/libstdc++-v3"' >> ${BINDIR}/etc/env.d/99libstdc++-v3 || die
	fi
}