sys-devel/gcc: add 15.2.1_p20260124

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

sys-devel/gcc/Manifest

@@ -46,6 +46,7 @@ DIST gcc-15-20251227.tar.xz 92352736 BLAKE2B 674d464376a04ebc1f7908cc8b5226e21aa
 DIST gcc-15-20260103.tar.xz 92342096 BLAKE2B 5857348f2f2dac961828b2041b3d7f2c202a0829b1964715b1df760eab4090249dbc3e1c6314aa1a48afb8702fd36cf001fb3db31caa13da703f58e07313c920 SHA512 ff8b7dfb1189ce809ed5281cf0aa3483483403d180a4e4e2c35be76d717a91afd9b9f0ab891dc60364169bee1a7a50b050d5ab2717c384cbd3c73666536041ce
 DIST gcc-15-20260110.tar.xz 92346896 BLAKE2B 93e852b3880a6460d921ebf6e04ce4484314b764b7f3a1a94e648fef446346c3837d37bbd7aef52855a26cfb0e3c8e154f854213f3bd9e2af90fd4355aeb42f1 SHA512 683414dd54d9657470e4e78ac671b3429a8c1bf9ebb5b0e608eab5d96006a0a67ac774af1e93ce330511f5602574f9551a726821e20bd9758f9480554cdb8584
 DIST gcc-15-20260117.tar.xz 92358244 BLAKE2B 32131a716d2cdc1f60462cc720474d7bfbe25fcd5d41e5a1d1cbe0e3452cebc61f262db96f72de1093331092cce7046ca36953ee13742e4ca8b02ea7ec4b85aa SHA512 e7b383edc668e1f37f561491dada71a5b9cae8068d771c13ed47253842ae568c556842654318e11107d68817d09c05e49f95408dd1802799b9a6b8dcfba02b81
+DIST gcc-15-20260124.tar.xz 92362060 BLAKE2B c25f87e6b2a09be9754619591de8474977b9f20eaf67b437ff898f15a767abd0874ad744cb7302b4632bc0d6fb993e4500e79398e0ccb2380d0ba704b27d5fb9 SHA512 ffa0bb1e67e774189ec958c0833413bc6b3f25bc344b893557d4ba612884aa1640e9c4f8cbdae92dc4a279cbfc40866d9fe059be46e926c8aa06cc1f28733391
 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-3.tar.xz 17436 BLAKE2B ae72e3c5feb7b96c10eb0706efe95047f0516a66ec19488ad7281dd4c62d4c6f1d1d594c6a865c808293b30b4f57ee8bc018b90fcf5944ccb935bc391752aa74 SHA512 4d23fd0dacc33c069528ef0bd6ece3029a4b221e55c82347c2df8a6fa8b890c6e7eeaf15284204a4a29841678b033af2272481bde6fca8ebcc08f8c233f4e7e3

sys-devel/gcc/gcc-15.2.1_p20260124.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_PATCH_DEV="sam"
+TOOLCHAIN_HAS_TESTS=1
+PATCH_GCC_VER="15.2.0"
+PATCH_VER="5"
+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 ~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
+}