sys-devel/gcc: add 15.2.1_p20260522

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

sys-devel/gcc/Manifest

@@ -40,6 +40,7 @@ DIST gcc-15-20260424.tar.xz 92415724 BLAKE2B abdbe0ac51bfe436b9f126e4e641bdf1e45
 DIST gcc-15-20260501.tar.xz 92426968 BLAKE2B f8cd3cb703f5d5a945e62b8d888200f498bf9fd16fda0b9154c442f159441a53b94003a5af78b3b1360fafe71799b838c6034198b981a2dee3a833885cc05575 SHA512 c3f01e7777c30281c1c930503ec0f856b5250394818afd6ae8d0c22c8239ab357e9e3b3c62855878f9705b1a58a53d53d5ea0829c429bc13d576ed5b7e4244ff
 DIST gcc-15-20260508.tar.xz 92425260 BLAKE2B ef33a59d1b31c4476ae5663b88ef3f1e2b65311cc0e06723c2719308a52c18d6d02d2d294940dc19569c1069f16e73ad190d2518980c5eac012a69797a00b496 SHA512 b41cc456b1a1096da8490ce051834cc81b18fac4b8ac5fc9fa8d7cce69fc8da1b97bf682d1d56ed587f0560e508ed72e2f474c801daabd23b9293b6f164d10f4
 DIST gcc-15-20260515.tar.xz 92432788 BLAKE2B 53d8d3d650a82c5876bd27c0239aa3236d6885f2e5042450bd9075c660b1048c5b6bf4bdd0e3911f9538875fdb6f6ad9dd0d28ff2e62172e0ba4b939a7bb3012 SHA512 b77293c516e1978643c55b34d4e7f80fb1561236baa82c006676dbf13f76c4ec007aca7062a2d73bed54af977550328f01907a67b3302c4f0deab59afde9a00f
+DIST gcc-15-20260522.tar.xz 92439160 BLAKE2B d585f05f369d10f93050db58ccbc068979e773ab7456a9e1f93f9ca77d800c5bdfa8083391b037496b537e44dc7debf9606f205afe7b50e62a6f000483f1edd5 SHA512 b1d0ba28a8d17dbb112c05b46c0b1e6eae97ca496ad4440fc9145b5a320d6fa76f80e83da5feeb9e02e1af2d56bb56bf419c5159df2cf5da28d1bc14fe1f027f
 DIST gcc-15.2.0-musl-patches-1.tar.xz 7168 BLAKE2B 6b7cfb123c3a691693240db815e6852a1e6c3820baa499368c463e0a0c1490c701053cfea10bf1d33f89dd2ba7bbddf63c4e6e0976590e3aaf1fee78b9282079 SHA512 ab80ffd69b9ead1fe06a9433faaa97ae53947d214999e77ea363fa6435de080d031a1aa6869e1dc088e800317952f2dc249a9e872113db56fb76f0a432240871
 DIST gcc-15.2.0-patches-2.tar.xz 18708 BLAKE2B 09c54bd1b8436e12a3da1c3ee41017cd3e960268a5d4637252152b44a4cc93934d4dc93eff842d7dcee4d1688b7f2d98be48114ef5c864793242177f7549c933 SHA512 f11cfafe00f7d18e05a316bd1dc522477cc4118fdd65019cf85bca674ff0180951506fef84ce0b5b13190ccfe44c777a64afdc602a4580595005b43b79ae7411
 DIST gcc-15.2.0-patches-4.tar.xz 19912 BLAKE2B 255d6435fe5b205d23d04eb885c55b421b1e6ffc30623fad5fe8a4cee5582f210e9851165b0976629d7e49288366a14635acdf1ad70f6d2fe288bdf88a9416a5 SHA512 f36c0a1e8abbb25cebfd93965950c072f33d8dbbc0be285e8e374a3602fe7e7cae3dfe44f24856d2231bcbfb40fe0c1de3b629e2f573d97f82212a7acf52ccc8

sys-devel/gcc/gcc-15.2.1_p20260522.ebuild

@@ -0,0 +1,56 @@
+# 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_HAS_TESTS=1
+PATCH_GCC_VER="15.2.0"
+PATCH_VER="8"
+MUSL_VER="1"
+MUSL_GCC_VER="15.2.0"
+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
+}