sys-devel/gcc: add 12.3.1_p20230915

Signed-off-by: Sam James <sam@gentoo.org>

sys-devel/gcc/Manifest

@@ -27,6 +27,7 @@ DIST gcc-12-20230818.tar.xz 79797008 BLAKE2B f838f69b699d74fedc2e9b038211bd0089d
 DIST gcc-12-20230825.tar.xz 79804260 BLAKE2B 4d3eb40eb5954d497b3e9586dad0d18c9e561d3fdd0bdccc5c9572edfbe024a235e30371a10116d98c77f0b6042739600c57ac99253d34f0fbb8b8465b187e1f SHA512 a6cd868f474c356886460b95263807828f9a379ce97524611ec504d6a9149ca1f92585128e6ffd03fa2647442e72fde6ebe987fd49f2fc49d8df39ab056905c5
 DIST gcc-12-20230901.tar.xz 79798068 BLAKE2B 2ed8b52dda448398e0c5954251f854c4051235c3c2364bdee1910ee513986f5b43cd776896b6a45f3479d7aef494aa0a956cee22338e004a7c0b8aa0d317ef99 SHA512 741e823916a025fe79779f40fb26518314eda45d004add8c6eaee7a6f32a25ac1afcfa1137d3cbec645a72cac83a759865dc37dee33d8fad2c742d6ce658fb8a
 DIST gcc-12-20230908.tar.xz 79788640 BLAKE2B 1ade0324dc16fba5ae410277d0af7ddfd1dc4bcce9bd6d887e955b9069cae986ffece4916313399d5439663ffb40b71aad236b8021b06cb2e777fa13f912f18f SHA512 f31e40d9c3683a6e35b6b0c5b40a8d12a14c964609244415ed4776179c3139a2aead3dde7df3c5e20691360656b98387acefb41c445c840fe3cb27ee05fa28df
+DIST gcc-12-20230915.tar.xz 79794800 BLAKE2B 9aa506c61de626c19466ac05cc77172a4a8b2c5b839e68597a14f92fd977c73c63a3833f0a7a4f5da57e31f4c36ec38cb2be1356178dd3bc749093cba5573db7 SHA512 cf26b4bf5cf5dbee3e71c72df056cd81e9c3b79948390c90e6d64916f650998426b41e2c04ffc539f49dd9275b0913a07cd2255e08997397152656cbb5bea03c
 DIST gcc-12.3.0-musl-patches-1.tar.xz 3572 BLAKE2B c7bf65f7c9ea8023ddaac821ee2b778622fa310ac72a72b2f7032494a8f304eac86217f9204622e6c21aaef9952bece0d09bc126facd4f42b602927909815ab5 SHA512 babc279fea2c1fd4c018815f2f5630214fd46015ce9f365c28af242681d51818eaca30ce298eddcab1eed5ac5f2759e2b47b2335afab9d722b4469a6d4fec326
 DIST gcc-12.3.0-patches-2.tar.xz 14236 BLAKE2B 06c43662c9abb0fa3cf90d5e2273c69aecb9158e6cf6f23c04754ed5d686be2616e81e2502eb16f4298ddd50518ca7677e13249da9e9b091162d3931ff65e4fe SHA512 b0d4b85dbf1a54aaaa1997203b872e3106906b4ad49cde57e1428bc22b2f8e2d73b8cb10ae0d0b792aebaf664594da4d1dea04c44ddc34e59047410766db04d1
 DIST gcc-13-20230527.tar.xz 83956360 BLAKE2B 86a2131b88144817673a6300c73b29c2dbb8559a7057609601029aaf60aeb4c4926fa4b99c4e1768726cde09f994159685768b62b3ca73d7b606847788301e82 SHA512 87566c74258f9981742eae77f552361c220f79fa6f17c36d5b5a9e73f41c50d8a2cab16b9ffb17f07829005f0d42b4b1d524150d3dcba9710091532cbfad7152

sys-devel/gcc/gcc-12.3.1_p20230915.ebuild

@@ -0,0 +1,64 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+TOOLCHAIN_PATCH_DEV="sam"
+PATCH_GCC_VER="12.3.0"
+PATCH_VER="2"
+MUSL_VER="1"
+MUSL_GCC_VER="12.3.0"
+
+if [[ ${PV} == *.9999 ]] ; then
+	MY_PV_2=$(ver_cut 2)
+	MY_PV_3=1
+	if [[ ${MY_PV_2} == 0 ]] ; then
+		MY_PV_2=0
+		MY_PV_3=0
+	else
+	        MY_PV_2=$((${MY_PV_2} - 1))
+	fi
+
+	# e.g. 12.2.9999 -> 12.1.1
+	TOOLCHAIN_GCC_PV=$(ver_cut 1).${MY_PV_2}.${MY_PV_3}
+elif [[ -n ${TOOLCHAIN_GCC_RC} ]] ; then
+	# Cheesy hack for RCs
+	MY_PV=$(ver_cut 1).$((($(ver_cut 2) + 1))).$((($(ver_cut 3) - 1)))-RC-$(ver_cut 5)
+	MY_P=${PN}-${MY_PV}
+	GCC_TARBALL_SRC_URI="mirror://gcc/snapshots/${MY_PV}/${MY_P}.tar.xz"
+	TOOLCHAIN_SET_S=no
+	S="${WORKDIR}"/${MY_P}
+fi
+
+inherit toolchain
+
+if tc_is_live ; then
+	# Needs to be after inherit (for now?), bug #830908
+	EGIT_BRANCH=releases/gcc-$(ver_cut 1)
+elif [[ -z ${TOOLCHAIN_USE_GIT_PATCHES} ]] ; then
+	# Don't keyword live ebuilds
+	#KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+	:;
+fi
+
+if [[ ${CATEGORY} != cross-* ]] ; then
+	# Technically only if USE=hardened *too* right now, but no point in complicating it further.
+	# If GCC is enabling CET by default, we need glibc to be built with support for it.
+	# bug #830454
+	RDEPEND="elibc_glibc? ( sys-libs/glibc[cet(-)?] )"
+	DEPEND="${RDEPEND}"
+	BDEPEND=">=${CATEGORY}/binutils-2.30[cet(-)?]"
+fi
+
+src_prepare() {
+	local p upstreamed_patches=(
+		# add them here
+	)
+	for p in "${upstreamed_patches[@]}"; do
+		rm -v "${WORKDIR}/patch/${p}" || die
+	done
+
+	toolchain_src_prepare
+
+	eapply_user
+}