# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI="5"

EPREFIX="/usr/local/share/dcompilers/gdc"

EGIT_REPO_URI="git://github.com/D-Programming-GDC/GDC.git"
EGIT_COMMIT="v2.068.2_gcc4.9"
EGIT_SOURCEDIR="${WORKDIR}/dev"
EGIT_NOUNPACK=1

inherit git-2

IUSE="d"

# Original GCC code starts here
PATCH_VER="1.0"
UCLIBC_VER="1.0"

# Hardened gcc 4 stuff
PIE_VER="0.6.4"
SPECS_VER="0.2.0"
SPECS_GCC_VER="4.4.3"
# arch/libc configurations known to be stable with {PIE,SSP}-by-default
PIE_GLIBC_STABLE="x86 amd64 mips ppc ppc64 arm ia64"
PIE_UCLIBC_STABLE="x86 arm amd64 mips ppc ppc64"
SSP_STABLE="amd64 x86 mips ppc ppc64 arm"
# uclibc need tls and nptl support for SSP support
# uclibc need to be >= 0.9.33
SSP_UCLIBC_STABLE="x86 amd64 mips ppc ppc64 arm"
PIE_MUSL_STABLE="amd64 arm ppc mips x86"
SSP_MUSL_STABLE="amd64 arm ppc mips"
#end Hardened stuff

inherit eutils toolchain

KEYWORDS="amd64 arm ~mips x86"

REQUIRED_USE="
	elibc_musl? ( !sanitize )"
RDEPEND=""
DEPEND="${RDEPEND}
	elibc_glibc? ( >=sys-libs/glibc-2.8 )
	>=${CATEGORY}/binutils-2.20"

if [[ ${CATEGORY} != cross-* ]] ; then
	PDEPEND="${PDEPEND} elibc_glibc? ( >=sys-libs/glibc-2.8 )"
fi

#src_configure() {
#	EXTRA_ECONF=""
#	if use elibc_musl || [[ ${CATEGORY} = cross-*-musl ]]; then
#		EXTRA_ECONF="$(EXTRA_ECONF) --disable-libsanitizer"
#	fi
#
#	toolchain_src_configure
#}

src_prepare() {
	if has_version '<sys-libs/glibc-2.12' ; then
		ewarn "Your host glibc is too old; disabling automatic fortify."
		ewarn "Please rebuild gcc after upgrading to >=glibc-2.12 #362315"
		EPATCH_EXCLUDE+=" 10_all_default-fortify-source.patch"
	fi

	toolchain_src_prepare

	if use elibc_musl || [[ ${CATEGORY} = cross-*-musl ]]; then
		cd "${S}"
		sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in
		mv libstdc\+\+-v3/config/os/gnu-linux libstdc\+\+-v3/config/os/gnu-linux.org
		cp -r libstdc\+\+-v3/config/os/generic libstdc\+\+-v3/config/os/gnu-linux
		cp libstdc++-v3/config/os/gnu-linux.org/arm-eabi-extra.ver libstdc++-v3/config/os/gnu-linux/
		mv libitm/config/linux/x86 libitm/config/linux/x86_glibc
		cp -r libitm/config/generic libitm/config/linux/x86
		epatch "${FILESDIR}"/${PN}-4.9.3-musl-linker-path.patch
		epatch "${FILESDIR}"/${PN}-4.9.3-secure-plt.patch
		epatch "${FILESDIR}"/${PN}-4.9.3-musl-res_state.patch
		epatch "${FILESDIR}"/${PN}-4.8.3-musl-fix-libc5-assumption.patch
		epatch "${FILESDIR}"/${PN}-4.8.5-posix_memalign.patch
		epatch "${FILESDIR}"/${PN}-4.9.3-tree-vect-data-refs-correctness.patch
	fi

	use vanilla && return 0
	#Use -r1 for newer piepatchet that use DRIVER_SELF_SPECS for the hardened specs.
	[[ ${CHOST} == ${CTARGET} ]] && epatch "${FILESDIR}"/gcc-spec-env-r1.patch

	if use d ; then
		# Get GDC sources into the tree.
		git-2_src_unpack
		cd ../dev || die "Changing into Git checkout directory failed."
		epatch "${FILESDIR}"/${PN}-4.9.4-d-frontend-fpic.patch
		./setup-gcc.sh ../gcc-${GCC_PV} || die "Could not setup GDC."
	fi
}