sys-devel/gcc: add 16.0.1_p20260322

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

sys-devel/gcc/Manifest

@@ -64,6 +64,7 @@ DIST gcc-16-20260222.tar.xz 98490280 BLAKE2B a78546fe74ff97593cfc0e4c35d8bd67faa
 DIST gcc-16-20260301.tar.xz 98581536 BLAKE2B ab779e3c30965b182c13a7f25388f19b757cb071420d6ec17e1dbdc0364645f48d225a60c3f14f02e1d19b769b2741a46a4ffadbcf207b28a61a1e8238b5263f SHA512 3a9bb3d41793e780adf704690ae4d60345b504f6b19ee4c545b68f8df0ab1afce07046a7f90ac11710de87762d710bbf6d652f53bb3bbd4eef0db20db25c5acc
 DIST gcc-16-20260308.tar.xz 98605400 BLAKE2B 757a6ddc67f21f733e0469bf0c8832281fd5457b93ec436812b8dab7d3e74c79482e7dc526a9d76fcfd819c4a42b5fce3c71fb36b278cf11e6cc87610f2229ac SHA512 2b4644dd3f225ed89d14eff1436a1d7977b7f39c55683bf789a7afe74ef2e699aa2ac25934ca5f3474397ff6d50fa5debfe46a56d47cb622f8d88ecb010d95d0
 DIST gcc-16-20260315.tar.xz 98655696 BLAKE2B 7e436e7cd4d4c8c34f58bf63030c4db5f1ae0097c43992d2d95357c29af00dd8fe2c462f09ba6f3dd2fcbaa397d5155ff9852d60984fd4710a5f8982fce092e5 SHA512 bc3205eb33455c0d171f9fe3c9babc02485e5c04f6502d5a056f7e3d7aac051a6a2e5ea104322d172e1129dc823ab664214a145cca82103fff5d461c932d5f00
+DIST gcc-16-20260322.tar.xz 98722428 BLAKE2B cb7b23a377d59304b1540c054e0abeb3239e7e9ded369b46ec903b54f6d7c353ee7e6d76c858e86fde0945fb120a3016a632339eb4e444c411e024ae822c2373 SHA512 cb090529657a776d6312390640a9ea310d621d721fb35b7ee38d1f10fc121c9a9b3bd437e5a0ff951e3a74b93c5fdf7a2493f04d6f1282534ae95592ad5859fd
 DIST gcc-16.0.0-musl-patches-1.tar.xz 3040 BLAKE2B 18b16357699780eb470cf44a10710281955140103198e0bd55b75e1efe3dbec233689edb11e1b9a62f782f3d97293af4906c18c2c41613b422eda085ee819467 SHA512 5ba580c7c7bb9e62935a5162d44d357cc31185a113acff7498ed7b1ac43fd0a35de7c3de0c87f02fe0be46b5e55b49bb35d1f5cd470058d21a9ea4096a37e13d
 DIST gcc-16.0.0-patches-34.tar.xz 27964 BLAKE2B 69cb42657f2e52c8d54c98023261a2deb811d1dc7a63064eaf24936ea10ef6826350339f2273b9bb276959d10c8e819fcb671de9d96e16ce5ce6f1c8dd4071c5 SHA512 16ab66ed14083a5c00e28d2f8ae06319a6187049fbf0cea0929f0c80acb647801bc08dc7621472d9d639b763311dce586f81e6a8bb0c13a1fe796a9036a325e4
 DIST gcc-16.0.0-patches-35.tar.xz 25940 BLAKE2B e6a7f7e550a83a706914a46d9226690e0fc8c130492f1c0c6e000a3bcfbcc28cab07437d6e0cbbfc9f511e9130f49272096bf1335e5e9bdbe9aa5812ca99ba42 SHA512 70f8128e24a5fcff4cafcddf2847bd439cf445359cf37d908749133ae0f69d6da18bfc6a8de9bc968963eec86f3eec9684df2db5eb66fe25717a4ed8b2533f4e

sys-devel/gcc/gcc-16.0.1_p20260322.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Maintenance notes and explanations of GCC handling are on the wiki:
+# https://wiki.gentoo.org/wiki/Project:Toolchain/sys-devel/gcc
+
+TOOLCHAIN_PATCH_DEV="sam"
+TOOLCHAIN_HAS_TESTS=1
+PATCH_GCC_VER="16.0.0"
+PATCH_VER="40"
+MUSL_VER="1"
+MUSL_GCC_VER="16.0.0"
+PYTHON_COMPAT=( python3_{11..14} )
+
+if [[ -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=master
+elif [[ -z ${TOOLCHAIN_USE_GIT_PATCHES} ]] ; then
+	# Don't keyword live ebuilds
+	#KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~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}"
+fi
+
+src_prepare() {
+	local p upstreamed_patches=(
+		# add them here
+	)
+	for p in "${upstreamed_patches[@]}"; do
+		rm -v "${WORKDIR}/patch/${p}" || die
+	done
+
+	toolchain_src_prepare
+	eapply "${FILESDIR}"/${PN}-13-fix-cross-fixincludes.patch
+	[[ ${CHOST} == m68k-* ]] && eapply "${FILESDIR}"/${PN}-15-m68k-workaround.patch
+	eapply_user
+}