sys-devel/gcc: backport time64 bits to 13

On request of dilfridge because 14/15 are broken on m68k, and this
will make it easier to test time64 + new int alignment.

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

eclass/toolchain.eclass

@@ -338,7 +338,7 @@ if [[ ${PN} != kgcc64 && ${PN} != gcc-* ]] ; then
 	# and https://rust-gcc.github.io/2023/04/24/gccrs-and-gcc13-release.html for why
 	# it was disabled in 13.
 	tc_version_is_at_least 14.0.0_pre20230423 ${PV} && IUSE+=" rust" TC_FEATURES+=( rust )
-	tc_version_is_at_least 14.2.1_p20241026 ${PV} && IUSE+=" time64"
+	tc_version_is_at_least 13.3.1_p20250522 ${PV} && IUSE+=" time64"
 	tc_version_is_at_least 15.0.0_pre20241124 ${PV} && IUSE+=" libgdiagnostics"
 	tc_version_is_at_least 15.0.1_pre20250316 ${PV} && IUSE+=" cobol"
 fi
@@ -1189,7 +1189,7 @@ toolchain_src_configure() {
 
 	downgrade_arch_flags
 	gcc_do_filter_flags
-	if [[ ${PN} != kgcc64 && ${PN} != gcc-* ]] && tc_version_is_at_least 14.2.1_p20241026 ${PV}; then
+	if [[ ${PN} != kgcc64 && ${PN} != gcc-* ]] && tc_version_is_at_least 13.3.1_p20250522 ${PV}; then
 		append-cppflags "-D_GENTOO_TIME64_FORCE=$(usex time64 1 0)"
 	fi
 

sys-devel/gcc/Manifest

@@ -30,6 +30,7 @@ DIST gcc-13.2.0.tar.xz 87858592 BLAKE2B 0034b29d3d6cc05821f0c4253ce077805943aff7
 DIST gcc-13.3.0-patches-2.tar.xz 44440 BLAKE2B ebde73f6c3cd1a5fdc5bbce36414a59dda0925cba9d422d3689fc9c14fece44ee2391982a674411aa99bf47ffd49200f3ce51cc908beb8298adfff78e709a84c SHA512 eb56e0d7e69b5c3cca21f4cbff21c1204cf64ede7e66d689f45cf5ff37de8a59f24eb1f4b30d9c4222fd4126654fe4ffc146851f504761014995553c1202e8fd
 DIST gcc-13.3.0-patches-3.tar.xz 51904 BLAKE2B f93896e6cd6fbbe8d996781ba4c4cf48d70063d0af79a595ca30686e3452e4a5a5517cdd1b91bf1502a9402bb0ad1f8c26b105d147f1e79ef6810bdf90ad13c2 SHA512 179e3b99350752ca3c672fe97b3168f27030aba8505b95c1ebc18592270a82f00175ccaf24f68eb90a9282bc1eda2794b3fd69bf5815af960a64356f36421937
 DIST gcc-13.3.0-patches-4.tar.xz 51768 BLAKE2B 54bcd1875af5ef50bb67c0152e1f8e7c2b8da98b17a97186e47da82f19ccf14393c62b40b26a8736e63858f59a56f1d9352f5b01480925192b766e319711db21 SHA512 33bd289b370be512604a1f8f1798c43ceac4c4eebbd0c409b9ddefc6716844bd9d5fa15b41845fc1e93c40e4e93ec9ccaab730ac768fad98f47033782400ab17
+DIST gcc-13.3.0-patches-5.tar.xz 52820 BLAKE2B 73759dc576aab9e5f66dc7f9a1e8eb1b79a98bdb85bfdac9d611baa82c85a5f433d5031876c6e0ee2f02dd1d874da1661b0dd0f05906b118502f17bfaf16eb1a SHA512 4e6b626a562657f2d928324b412d5033464c09d283ad3a2ebfebbb5245bffb09c2532318325c4c16f4206df5cede6758fe1031c55e64dfb9b9ea08ef2c1e90af
 DIST gcc-14-20241221.tar.xz 88198252 BLAKE2B 7491c2e1c8885e201859143bdf5cae95af4c0db77709ec7d761ad535df30042f5deb8488ba7c508de3673e4b0f2af1de8d17476f39cd47b745ddccec6a9e4470 SHA512 91fe1e1d1f8e8fad64930a2eadf942a542bd42f841fceb49f475bccac00f04692b8cd38821ea9ee05f78b5c51001d8bd39df5f71f3a3d89aab8980019cea9be8
 DIST gcc-14-20250301.tar.xz 88230928 BLAKE2B 2b65e7cccbf431a74df73adac53995873e78240d7abd97e9c9c576806c389b3c1abb6d47710a25a26f2ee399de750a07c3fb7916a580875d08a3a83354d89c1c SHA512 6b2afe19ce95a595307ae10b89054927116d33b499f1ef8233936d719271c04cb8f66890068ef2252c59ab0276dd0e6210990cb88abdfb4965818c25949f431e
 DIST gcc-14-20250419.tar.xz 88251960 BLAKE2B b9d8312ac8dd9dd82128ff872e379f3426b4464e940ebd7748e53d6cd41e5a0f936f01ffdd3beb308a693ce98d3c323206ec67006de0735a430534b21899ae6d SHA512 44cd816dc61d4cf9925be47b75c5ddfc791dbfb43cc56a82e3a46673e8a2753d69f8b9230d68399c4b232c2daab85622168998f2dab767bb78c2292613dd6643

sys-devel/gcc/gcc-13.3.1_p20250522-r1.ebuild

@@ -0,0 +1,69 @@
+# 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="13.3.0"
+MUSL_GCC_VER="13.2.0"
+PATCH_VER="5"
+MUSL_VER="2"
+PYTHON_COMPAT=( python3_{10..14} )
+
+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 ~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
+}