sys-devel/gcc: add 16.0.0_p20250608

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

sys-devel/gcc/Manifest

@@ -42,6 +42,7 @@ DIST gcc-15.1.0-patches-1.tar.xz 18628 BLAKE2B ee5fc9d6a06374ccc8d85cd1e269514fd
 DIST gcc-15.1.0.tar.xz 98268344 BLAKE2B a902ce99db4e93615879e435bcd0b96d5a16ea0af42598ca0e6d12913b2ce3651a98574c3264b2717b848e6b5a823b403ccca0adde463938d5b41aa3f1da0d34 SHA512 ddd35ca6c653dffa88f7c7ef9ee4cd806e156e0f3b30f4d63e75a8363361285cd566ee73127734cde6a934611de815bee3e32e24bfd2e0ab9f7ff35c929821c1
 DIST gcc-16-20250525.tar.xz 93827336 BLAKE2B b79645f522e50a72166b3ea7860d4a27f3b19e0ac4be85f4944479e44d95221bb01bbaea630b43b7e2ba79de5531fb1b591b5eabc67bdc3d04106735813f8400 SHA512 92c0b5a431caeb57ab9665a9431f586b78c68fd050e319a3b0cab2fe1c66c6bda6da0145c621d78464a5e39e20b24428419f15b97aca608e2b1cfbcfa09181c3
 DIST gcc-16-20250601.tar.xz 93928944 BLAKE2B 4630f24175cde84cc36244b65336d3de2e09e010157410cc1bf29b7cff27431eb43d13455ca9734567262b5a61c28a7d544cceee3d6116506eec8a05fa75dd96 SHA512 27146f8961c77c06ce76235880e633548c186657f48b3a80e3b11450bcb096eee3bd48250a7c3931378f70ae90fe4a5d6e5031589d5cede316dbadb46a27b3ff
+DIST gcc-16-20250608.tar.xz 93926024 BLAKE2B e4f4bef28776421fe756214c2ebe1e8803ae58fc89f719e34fcbc5394534fd4028e10b0d696f5371db04073018008b08c819d4f02366348d925a6410d164ccd6 SHA512 0333267b9815285ab84893dc50eb8e6b22390d3864c8485d1c2866cb4a178787a06f9588484d53f4b8e4dd79319130f3919094854b90714dc07a32c26eeb278d
 DIST gcc-16.0.0-musl-patches-1.tar.xz 3040 BLAKE2B 18b16357699780eb470cf44a10710281955140103198e0bd55b75e1efe3dbec233689edb11e1b9a62f782f3d97293af4906c18c2c41613b422eda085ee819467 SHA512 5ba580c7c7bb9e62935a5162d44d357cc31185a113acff7498ed7b1ac43fd0a35de7c3de0c87f02fe0be46b5e55b49bb35d1f5cd470058d21a9ea4096a37e13d
 DIST gcc-16.0.0-patches-2.tar.xz 17524 BLAKE2B 6e5f07e01ec4981cccb6286151e7948b9ceaadb61afb11307174fcd855440db84d233857c07e311b099130913a26d13201a3b62e2f52ceb959055e190e776efb SHA512 3e6c7fd3e819dff461e54d2a0d568d2d68e01bda845ab44e026231f187c43a9ffa266e7dab981f3b36a55b9654cefb197f5fff7158538526512ce05be0948992
 DIST gcc-16.0.0-patches-3.tar.xz 17832 BLAKE2B 8ca77441e3909b650f1894144eefa57ec8c9591adaedccf738d37c7d28626d08927794053d3d2e5a0d10a9d8727584183042e2607e56f09ee6401ef5a002477d SHA512 1b21a7cc71f3c927eaff6d50fafd3c4f9fb206870dbdc4742cee6dcb31b8469ac1baff49b458152324daef5a5e867b376642f25ed2a6c6126d11c2878deace0e

sys-devel/gcc/gcc-16.0.0_p20250608.ebuild

@@ -0,0 +1,56 @@
+# Copyright 1999-2025 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="3"
+MUSL_VER="1"
+MUSL_GCC_VER="16.0.0"
+PYTHON_COMPAT=( python3_{10..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
+	eapply_user
+}