sys-devel/gcc: add 15.0.0_pre20240929-r1 (backport two C++ patches)

Fixes Qt 5 header use and building FF.

Closes: https://bugs.gentoo.org/940529
Closes: https://bugs.gentoo.org/940542
Closes: https://bugs.gentoo.org/940545
Closes: https://bugs.gentoo.org/940580
Closes: https://bugs.gentoo.org/940589
Closes: https://bugs.gentoo.org/940590
Closes: https://bugs.gentoo.org/940591
Closes: https://bugs.gentoo.org/940607
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 54 insertions, 0 deletions

diff --git a/sys-devel/gcc/Manifest b/sys-devel/gcc/Manifest
index ee48104e040e..9b5a6230340d 100644
--- a/sys-devel/gcc/Manifest
+++ b/sys-devel/gcc/Manifest
@@ -31,6 +31,7 @@ DIST gcc-15-20240929.tar.xz 89549712 BLAKE2B 90b22ddf10f3c7f36f8a19e3a4436fed73b
 DIST gcc-15.0.0-musl-patches-2.tar.xz 3076 BLAKE2B 0073248fe4f7dd827980559017b5aa1fb5c4c46acc9ad5c410dc152fd1e44966d3066bf7152338573cb45b1c36027de5f0c519abd414d97a37bccef07f6a5281 SHA512 295f1a669020bbe2874e9b03afd46b5d083073b276fca3543f3767a2d74f35df81cf0a67abad50c200cf7a3af36ec98ff9977cb7d5c19f334af7d3bb1926a3de
 DIST gcc-15.0.0-patches-12.tar.xz 12980 BLAKE2B 325743e1d4264e80ce91e866bb3cbb9d0e72e186fee0d29e6dace6c48b975992dcd7081fe2a924519d5c1503dedc14a4b41f584dd7d97924664bcc6f6537a8bc SHA512 e18401c517b05e13c203b147f9ba6991c867a8c0a50a7e1a67ea497243d46cbbac674c3498651946f941423241d36b6bc55571a8131fc3604c92604be288f60d
 DIST gcc-15.0.0-patches-13.tar.xz 16480 BLAKE2B b3d9637972ac3644ba0191cb26aa2c9f624ead14816a6358db81745ef984af9de3c0c1f5576edc3045d877b3907a97566b468734baa2e6b2a351187d3e9ff80e SHA512 da368e83643fe2312655654be2de4824c3b5e7efaafbf2dcf63aafa48580cfe74e5394707c577d82e22336dbadd52414e31a597dc3565d0378f3ead5323b9b3c
+DIST gcc-15.0.0-patches-14.tar.xz 14764 BLAKE2B 3da7b4d81ea45ca1254ab9f290ca0c94cacb2d168aa0b3f6b0ef18193f911e204148b1790df9ddf7d1f6955777b3470030e73751fc7d1c0fd23bccfdee10fcbf SHA512 7133b5df5f07307f85a07b05fdc5f8166920aa93b13c1465812be572c7185b7fcf174cc36ddb2bc9fd2323dd010db9a42d35df9871f185794cd22bff57c43eb9
 DIST gcc-8.5.0-patches-4.tar.xz 18616 BLAKE2B 7594cbaea5daecf1a0b3d526c06aeba0a84c6da66aee2e105a51fda6be8d30a37ccc3814281b284a4582d892a1d556bca063551584edfc2525bed8ea5b6888e7 SHA512 1aa5742c361186637e7855f06feb1a4547e7d4d5de6e51f3d049e0ef3c19e2eff179465f52781739f59422035b7f8e4c0efa3844849f920f3c96acfdc37ca6a6
 DIST gcc-8.5.0.tar.xz 63841008 BLAKE2B aa81a1a730fd7371360f6abed6ba78b5843fd18c58d5de5687acc320741b9e430e85df3535a1ef7a26051409be8d2f0945f503e5968480d919103123a99d4b12 SHA512 92f599680e6b7fbce88bcdda810f468777d541e5fddfbb287f7977d51093de2a5178bd0e6a08dfe37090ea10a0508a43ccd00220041abbbec33f1179bfc174d8
 DIST gcc-9.5.0-patches-2.tar.xz 14324 BLAKE2B 1d3bf3e673108ad2fcdcb86daefb4603d1c9f6aa815e34d1591054d466b76d6f50cce124ab4760528c4951ea16eb00888a3e6485417f81ebf250548732df4a8e SHA512 a6d6f650aaf0bd193a17ac279649f0544a282cea295824384c59341c3000eac4b574b60e00dd427585d928f9768166abf85168b47772132790ad98854acacbbf
diff --git a/sys-devel/gcc/gcc-15.0.0_pre20240929-r1.ebuild b/sys-devel/gcc/gcc-15.0.0_pre20240929-r1.ebuild
new file mode 100644
index 000000000000..fe87c4b34719
--- /dev/null
+++ b/sys-devel/gcc/gcc-15.0.0_pre20240929-r1.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"
+TOOLCHAIN_HAS_TESTS=1
+PATCH_GCC_VER="15.0.0"
+PATCH_VER="14"
+MUSL_VER="2"
+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 ~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_user
+}