sys-devel/gcc: add 15.0.0_pre20240512

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

sys-devel/gcc/Manifest

@@ -24,6 +24,7 @@ DIST gcc-14.1.0-patches-1.tar.xz 11584 BLAKE2B d483f4e3324acdc26b9837028d5e20ad0
 DIST gcc-14.1.0.tar.xz 92265736 BLAKE2B 7efd6574b8bca081de6e31480ec0565c6d7fb773383e8e1fdcc17e35bba2bf44b3f4f995cdbcccd001689926e96a6563ef3d099902fe3b37ab09dcf553ab0596 SHA512 e9e224f2b26646fcf038d28dfa08b94c623bc57941f99894a321d01c600f7c68aff6b8837fd25e73e540de1f8de5606e98694a62cdcdfb525ce768b3ef6879ea
 DIST gcc-15-20240428.tar.xz 87999896 BLAKE2B 83e53e5a93166c741bd61f1642539823f9eef5859f89c85493cfe0be412251950c07b3704e8a983c61e00fd4b0e0027f7333867f9b4245ba45d6f606ce56953d SHA512 69aedb59fd4d9ec59b7a71098bcf330ec0515e7a51e7510d237e086e7c042526aaa52a702783b6121ee7c9133345c8234d5d2fcd89459d7ae8a1a1e09c42cce8
 DIST gcc-15-20240505.tar.xz 88033016 BLAKE2B ba6469602b31024e9d8025159d3595edac6060a2e406c9bf1db1317badddc7fa3a1c9b3b13448fda86c1db1d6ad0fc9a9151611ef944fe6521996d9d62980c33 SHA512 8a15f0e4335aaa0685cfb84943ea0a53c279b92f01736d819f42bcc98e51b2a0ee28f64b08a30da14b08f5ab4ff8ae7785e0ab28e782138b6d9726b8667b89ba
+DIST gcc-15-20240512.tar.xz 88076192 BLAKE2B 43f7ffbe0e7a101040ac8eda9ae0b877cc0ceee84e4b4a3f630023cb2d70893390b0a5d2cb83a0b192f3ece89cb4a88902d84178c91ac69d27f0631e4508dc25 SHA512 f4bb318933a2646cccb0db24ba0d943b5e89982cbf132db3a2124a2c621533791ba6561308cd3979a7135c2e4521f3a423614fede47eb9dd073b3501cf3bad09
 DIST gcc-15.0.0-musl-patches-1.tar.xz 3596 BLAKE2B 48fddc723ec8282cc2704c795a50fb37a46738a555151e0430180dda61d039fe96b29a6c3e8a543386d69690302bf46dfc89aad572082b7e47c928c0ccefdeb0 SHA512 e43284d02e25b77b911ce90d57520897751e86c631bdd6beb7d2e4429000156801b8c11bd9a737ec11bc966812f13ae44b88c1893645f8e6c6f8dfddc636ec39
 DIST gcc-15.0.0-patches-1.tar.xz 11588 BLAKE2B 0623914dcf3ee0d44c729776cebbecfe92b256039a48c91e3fc16a27254a9c40436a1b6ea7fa9285914b153af861ea98ab845515169af204eeea0243c890a652 SHA512 7d3bcb1adcfa79c1672737125539fc0583f9c74eb8da0301ea0e441c68afeb7e1dbcbdffbf18e03b2515b4f23822a39e339298cf88ea94b93f5fc22b497cd545
 DIST gcc-8.5.0-patches-4.tar.xz 18616 BLAKE2B 7594cbaea5daecf1a0b3d526c06aeba0a84c6da66aee2e105a51fda6be8d30a37ccc3814281b284a4582d892a1d556bca063551584edfc2525bed8ea5b6888e7 SHA512 1aa5742c361186637e7855f06feb1a4547e7d4d5de6e51f3d049e0ef3c19e2eff179465f52781739f59422035b7f8e4c0efa3844849f920f3c96acfdc37ca6a6

sys-devel/gcc/gcc-15.0.0_pre20240512.ebuild

@@ -0,0 +1,53 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+TOOLCHAIN_PATCH_DEV="sam"
+PATCH_GCC_VER="15.0.0"
+PATCH_VER="1"
+MUSL_VER="1"
+MUSL_GCC_VER="15.0.0"
+PYTHON_COMPAT=( python3_{10..12} )
+
+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 ~ia64 ~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}"
+	BDEPEND="amd64? ( >=${CATEGORY}/binutils-2.30[cet(-)?] )"
+fi
+
+src_prepare() {
+	local p upstreamed_patches=(
+		# add them here
+	)
+	for p in "${upstreamed_patches[@]}"; do
+		rm -v "${WORKDIR}/patch/${p}" || die
+	done
+
+	toolchain_src_prepare
+
+	eapply_user
+}