From 82fd88ea93e273f4b02580552f808b6305d1e840 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@koprulu.sector>
Date: Tue, 26 Mar 2024 19:01:21 +0000
Subject: gentoo auto-resync : 26:03:2024 - 19:01:20

---
 sys-devel/clang-common/Manifest                    |  10 +-
 .../clang-common/clang-common-15.0.7-r8.ebuild     | 185 +++++++++++++
 .../clang-common/clang-common-16.0.6-r3.ebuild     | 191 +++++++++++++
 .../clang-common/clang-common-17.0.6-r2.ebuild     | 295 --------------------
 .../clang-common/clang-common-17.0.6-r3.ebuild     | 295 ++++++++++++++++++++
 .../clang-common/clang-common-18.1.2-r1.ebuild     | 297 ---------------------
 .../clang-common/clang-common-18.1.2-r2.ebuild     | 297 +++++++++++++++++++++
 .../clang-common/clang-common-19.0.0.9999.ebuild   |   6 +-
 .../clang-common-19.0.0_pre20240322-r1.ebuild      | 296 ++++++++++++++++++++
 .../clang-common-19.0.0_pre20240322.ebuild         | 296 --------------------
 10 files changed, 1273 insertions(+), 895 deletions(-)
 create mode 100644 sys-devel/clang-common/clang-common-15.0.7-r8.ebuild
 create mode 100644 sys-devel/clang-common/clang-common-16.0.6-r3.ebuild
 delete mode 100644 sys-devel/clang-common/clang-common-17.0.6-r2.ebuild
 create mode 100644 sys-devel/clang-common/clang-common-17.0.6-r3.ebuild
 delete mode 100644 sys-devel/clang-common/clang-common-18.1.2-r1.ebuild
 create mode 100644 sys-devel/clang-common/clang-common-18.1.2-r2.ebuild
 create mode 100644 sys-devel/clang-common/clang-common-19.0.0_pre20240322-r1.ebuild
 delete mode 100644 sys-devel/clang-common/clang-common-19.0.0_pre20240322.ebuild

(limited to 'sys-devel/clang-common')

diff --git a/sys-devel/clang-common/Manifest b/sys-devel/clang-common/Manifest
index 07f28b2c51f6..75768c180aed 100644
--- a/sys-devel/clang-common/Manifest
+++ b/sys-devel/clang-common/Manifest
@@ -9,12 +9,14 @@ DIST llvm-project-18.1.2.src.tar.xz.sig 566 BLAKE2B 97c6b6b4a041316e70abd54ff715
 DIST llvm-project-6d3cec01a6c29fa4e51ba129fa13dbf55d2b928e.tar.gz 207700152 BLAKE2B 855720b7a9cc7b1d8fdf398394eb5c702dd615c04e7dad51c449cb1c2f46e75f2ccf2ee10fa3a3403d6aec29f557023a11bd8cdb525bc9c3d76c79f23cd15e82 SHA512 ff6269158e165907c69bd3e4d2d6b87b4f4670546b7e290d7e6665e7097ec887d71174fa37bf5e1755524317e8ae8f0c7c7e428049e8b553faa52c614f1f4490
 DIST llvm-project-f3cfe016c5d8429c0dccfa6f85442e2ea0d45a58.tar.gz 208184654 BLAKE2B abd35798f7c921866bb221cecc42aa94915271d0804acbf44dbe5640efb787ef9d928c329eacde768fac4292217ed4d3c4187fba02dd1c826059aeaa1bad33f0 SHA512 513f7278367114ba3fe3271e8a790b62adbca97d280968537e44e5df9a7afb467a5ca93480f4d4fb7c4d5c0734d00ab54559bf68c00f09a1fcff2fee492aa84f
 EBUILD clang-common-15.0.7-r7.ebuild 5462 BLAKE2B 098697c65115e672a1e878167997d820c93cad6a71c5a1dc17c731a031d37f20e50ef41e2f1d3238bc91065ba23bab5db4ab48e8274be9db3cb086ec6cdf7868 SHA512 7500bf0c4fde82b90aac68d09b95a49c241fae8b0d2340f7780e9baed1c85d855e45c4296a7daaa0b831a07f442e0be4faf6510a335fa5c979b3061e28fdb99d
+EBUILD clang-common-15.0.7-r8.ebuild 5481 BLAKE2B 581f6dcec8a01aef5d8121bc4051bfea0f1b414cb277fcb6ad750472662dd0a1597f048772c33a3e2f72f4f500f4b4f185b03460b2e7ace3b14a2ad22ae5be23 SHA512 49878c9bac0ea61b009863f45f0ee28a55c0937f49a0c91e4b9c9c884b5a3a9a3fa4128b049631304c31ad809a7d275bf992498f2736e64d78027c1a2f8addc0
 EBUILD clang-common-16.0.6-r2.ebuild 5694 BLAKE2B 18498071d0ca64d58e19ba1e11a42aa7bdf630f66b30aa80e4b72a9aa69f45723baea1da53462cb351075481ad1500544fbb3243ffd8aec16c04c526e2844723 SHA512 70736fa50d37a505b41b385ed0ecd5bca571e1a04d9bc66dfb010e5e1ab61aadaf26bdec17bb46d7a7850dcb90cbabdb173887c0f93fe94c78a460784bc04ab8
+EBUILD clang-common-16.0.6-r3.ebuild 5725 BLAKE2B fef6abf4d29c76572e1598efccb4c7cf32e1238b2cea63d5d01c83e057d52baa82ff70abcacad84121edaf5c06777ee4b13daf40bc57e221e7c3cabd0c3820b7 SHA512 bac47f80fedeeb88394f126a3393e94dba8cd9f464b446e0d8291d444c44d4879afb6db23c29404978ac6b84a8b2c4be7c3c334b3fbb5c9fb7712ab63effe0db
 EBUILD clang-common-17.0.6-r1.ebuild 8629 BLAKE2B 37c71ff17e805407826bd6ac8e040820c041b37754b9bc55ee67b9ff75bbc993cb4903f9d4018bfda5e37e7dd6d42ac2ea6e16c17a6f369d2fa3862da9607a79 SHA512 d6c8e2731cf29263cd1f17fd90257e9cd9bff372afa1e35f652197c3691ce879794b840a930c02b1ff394dac39d016f6362a86d4938740a65ef084d2ee4b5147
-EBUILD clang-common-17.0.6-r2.ebuild 8773 BLAKE2B 9dea244cea6a5ea2d15849e1f6b743a7582cd0a7ee96dfbbd914099b6090592e9766613177797b0a469427d2bdbd47d94af45b3d073602cc573ef3830b705020 SHA512 73221f17fae62df6b5f2264c9a12abf8b5cad4ffa19b42ca85a50f44201c186e66e55343ffd7c372257ba5b4971af31dbf312a0123d9658f10eaa04d68bf5af2
-EBUILD clang-common-18.1.2-r1.ebuild 8890 BLAKE2B 12e5d615ed30b0f69f8b65fb4eeeabb3db5498de6f9c88d738abbb6079fe5a3762a7aa88f1651646c194ae960e28738760d72b186cef2b6888a7d0bf39cbe937 SHA512 5837c3c0180bc695641fdadf96430485a19a305af5b56fbf5f833681dabe6960852f670678e3c7b6689100fb0022da814d8a95ce39347c6f91b2b25e7a4767ff
+EBUILD clang-common-17.0.6-r3.ebuild 8809 BLAKE2B b8f534730118e3553b3c02065da860b73608fc63a4e89090d3115afde69bdb590af4ab3d9218a7f19b55e13cb719992be7d3d643572ce7cb779aa362279b743f SHA512 7a5a8ca6c301e9a1bcefb0b4af014af1d41f77dc622a89075b6aac3413bf077f7e65f4ed6fba066e839fd1d94a7e9e7e306bf3ff7d0d3960f44cf43bcba190a1
+EBUILD clang-common-18.1.2-r2.ebuild 8926 BLAKE2B a14c560cede33e7aa1fc0b8b5d56c4ec15f0fc5f6675a192463223644fa444fb27ec49b30ddc405e618425505cff781c91a6d8ff833e332350030ecd93d79981 SHA512 8a01f5d53029bb993f5671dc95b82ed91a8daaf586f2cb53e1c4e050ff24888616d8d22f7028dee0b9c01422cc1103cfd83c1d1ad57b61df202e4b9579475eb0
 EBUILD clang-common-18.1.2.ebuild 8753 BLAKE2B 562cd03f515472d69eb0be89030066863ec8de6525420eeffab8388241f1d2a4896ec62df754dad5edf7d79061878019d6425cf6c433a27a8b2d69ef0db8f72b SHA512 1ad9a3c60a9d63aa0051e9bfba12c7d5596f443924c1afc122f8c47701f6bcd7109d663596faf284924fd117f80a97ec592ab8465beda03bd9c20a963376946a
-EBUILD clang-common-19.0.0.9999.ebuild 8774 BLAKE2B 441c37d7db6d4964fe8427af6631f4cdac92df372e66a4b43ea3558c153965152b060f1acef91f230f5a6e23fac08116bb09129cd1ee23ec0ecc636e332ef8d1 SHA512 29944fc4c718ddf998474b62f9022ac1505b9b4c011a0e957a2de6c801ccbf4b77d7c39a005cb8f310c51afb6b2f3fa7c99e9b408549f00146bced5883a2a1dd
+EBUILD clang-common-19.0.0.9999.ebuild 8810 BLAKE2B 48a14a93dcbbafd4a2cd62705c4c05bde2bc8c94e6bcc7455e401b0ce7e01bb3534beac8a84f865f66dff94a8c63f2113e468b09daa998f28d7bfa7542977a80 SHA512 0f34ca4bf18f937ca60be571dc14f8ae06ef5ba269c251e0f391f202b683070d7a96d76aa4df84e01f03a5be886cea82beee9f9fa4fb304aa0a258f20df0c597
 EBUILD clang-common-19.0.0_pre20240316.ebuild 8774 BLAKE2B 441c37d7db6d4964fe8427af6631f4cdac92df372e66a4b43ea3558c153965152b060f1acef91f230f5a6e23fac08116bb09129cd1ee23ec0ecc636e332ef8d1 SHA512 29944fc4c718ddf998474b62f9022ac1505b9b4c011a0e957a2de6c801ccbf4b77d7c39a005cb8f310c51afb6b2f3fa7c99e9b408549f00146bced5883a2a1dd
-EBUILD clang-common-19.0.0_pre20240322.ebuild 8774 BLAKE2B 441c37d7db6d4964fe8427af6631f4cdac92df372e66a4b43ea3558c153965152b060f1acef91f230f5a6e23fac08116bb09129cd1ee23ec0ecc636e332ef8d1 SHA512 29944fc4c718ddf998474b62f9022ac1505b9b4c011a0e957a2de6c801ccbf4b77d7c39a005cb8f310c51afb6b2f3fa7c99e9b408549f00146bced5883a2a1dd
+EBUILD clang-common-19.0.0_pre20240322-r1.ebuild 8810 BLAKE2B 48a14a93dcbbafd4a2cd62705c4c05bde2bc8c94e6bcc7455e401b0ce7e01bb3534beac8a84f865f66dff94a8c63f2113e468b09daa998f28d7bfa7542977a80 SHA512 0f34ca4bf18f937ca60be571dc14f8ae06ef5ba269c251e0f391f202b683070d7a96d76aa4df84e01f03a5be886cea82beee9f9fa4fb304aa0a258f20df0c597
 MISC metadata.xml 1248 BLAKE2B d9c542ec74a08857a87a42927feef909c343b5b672145e471ebc69753a3f93432d2ae93ed2659a67d504e2c5ff4212640e4208b173d96e5a173a1043766b66f8 SHA512 eb6d4be1dfbdf6b70b774d42493f6b3015472d5e4bba9386254f6e4ae92307169fe1ac6f0f613d452a9c21c6d61ed57ab50efb54813146983f4d6809b32ddacb
diff --git a/sys-devel/clang-common/clang-common-15.0.7-r8.ebuild b/sys-devel/clang-common/clang-common-15.0.7-r8.ebuild
new file mode 100644
index 000000000000..ddefc1b716bb
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-15.0.7-r8.ebuild
@@ -0,0 +1,185 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~ppc-macos ~x64-macos"
+IUSE="
+	default-compiler-rt default-libcxx default-lld llvm-libunwind
+	hardened stricter
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	EOF
+
+	# Baseline hardening (bug #851111)
+	# (-fstack-clash-protection is omitted because of a possible Clang bug,
+	# see bug #892537 and bug #865339.)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-Xarch_host -fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
+	/* __has_include is an extension, but it's fine, because this is only
+	for Clang anyway. */
+	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
+	# include <stdc-predef.h>
+	#endif
+	EOF
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+	#ifdef __clang__
+	# pragma clang system_header
+	#endif
+	#ifndef _FORTIFY_SOURCE
+	# if defined(__has_feature)
+	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
+	# else
+	#  define __GENTOO_HAS_FEATURE(x) 0
+	# endif
+	#
+	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
+	if use stricter; then
+		newins - gentoo-stricter.cfg <<-EOF
+			# This file increases the strictness of older clang versions
+			# to match the newest upstream version.
+
+			# clang-16 defaults
+			-Werror=implicit-function-declaration
+			-Werror=implicit-int
+			-Werror=incompatible-function-pointer-types
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			@gentoo-stricter.cfg
+		EOF
+	fi
+
+	local tool
+	for tool in clang{,++,-cpp}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+		EOF
+	done
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-16.0.6-r3.ebuild b/sys-devel/clang-common/clang-common-16.0.6-r3.ebuild
new file mode 100644
index 000000000000..2b4f5f8e714b
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-16.0.6-r3.ebuild
@@ -0,0 +1,191 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
+IUSE="
+	default-compiler-rt default-libcxx default-lld
+	bootstrap-prefix hardened llvm-libunwind
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-Xarch_host -fstack-clash-protection
+		-Xarch_host -fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
+	/* __has_include is an extension, but it's fine, because this is only
+	for Clang anyway. */
+	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
+	# include <stdc-predef.h>
+	#endif
+	EOF
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+	#ifdef __clang__
+	# pragma clang system_header
+	#endif
+	#ifndef _FORTIFY_SOURCE
+	# if defined(__has_feature)
+	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
+	# else
+	#  define __GENTOO_HAS_FEATURE(x) 0
+	# endif
+	#
+	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
+	local tool
+	for tool in clang{,++,-cpp}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+		EOF
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			# Gentoo Prefix on Darwin
+			-Wl,-search_paths_first
+			-Wl,-rpath,${EPREFIX}/usr/lib
+			-L ${EPREFIX}/usr/lib
+			-isystem ${EPREFIX}/usr/include
+			-isysroot ${EPREFIX}/MacOSX.sdk
+		EOF
+		if use bootstrap-prefix ; then
+			# bootstrap-prefix is only set during stage2 of bootstrapping
+			# Prefix, where EPREFIX is set to EPREFIX/tmp.
+			# Here we need to point it at the future lib dir of the stage3's
+			# EPREFIX.
+			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+				-Wl,-rpath,${EPREFIX}/../usr/lib
+			EOF
+		fi
+		cat >> "${ED}/etc/clang/clang++.cfg" <<-EOF || die
+			-lc++abi
+		EOF
+	fi
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-17.0.6-r2.ebuild b/sys-devel/clang-common/clang-common-17.0.6-r2.ebuild
deleted file mode 100644
index 987b7b40aa50..000000000000
--- a/sys-devel/clang-common/clang-common-17.0.6-r2.ebuild
+++ /dev/null
@@ -1,295 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit bash-completion-r1 llvm.org multilib
-
-DESCRIPTION="Common files shared between multiple slots of clang"
-HOMEPAGE="https://llvm.org/"
-
-LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
-SLOT="0"
-KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
-IUSE="
-	default-compiler-rt default-libcxx default-lld
-	bootstrap-prefix cet hardened llvm-libunwind
-"
-
-PDEPEND="
-	sys-devel/clang:*
-	default-compiler-rt? (
-		sys-devel/clang-runtime[compiler-rt]
-		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
-		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
-	)
-	!default-compiler-rt? ( sys-devel/gcc )
-	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
-	!default-libcxx? ( sys-devel/gcc )
-	default-lld? ( sys-devel/lld )
-	!default-lld? ( sys-devel/binutils )
-"
-IDEPEND="
-	!default-compiler-rt? ( sys-devel/gcc-config )
-	!default-libcxx? ( sys-devel/gcc-config )
-"
-
-LLVM_COMPONENTS=( clang/utils )
-llvm.org_set_globals
-
-pkg_pretend() {
-	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
-
-	local flag missing_flags=()
-	for flag in default-{compiler-rt,libcxx,lld}; do
-		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
-			missing_flags+=( "${flag}" )
-		fi
-	done
-
-	if [[ ${missing_flags[@]} ]]; then
-		eerror "It seems that you have the following flags set on sys-devel/clang:"
-		eerror
-		eerror "  ${missing_flags[*]}"
-		eerror
-		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
-		eerror "The build is being aborted to prevent breakage.  Please either set"
-		eerror "the respective flags on this ebuild, e.g.:"
-		eerror
-		eerror "  sys-devel/clang-common ${missing_flags[*]}"
-		eerror
-		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
-		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
-	fi
-}
-
-_doclang_cfg() {
-	local triple="${1}"
-
-	local tool
-	for tool in ${triple}-clang{,++}; do
-		newins - "${tool}.cfg" <<-EOF
-			# This configuration file is used by ${tool} driver.
-			@gentoo-common.cfg
-			@gentoo-common-ld.cfg
-		EOF
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
-			-lc++abi
-		EOF
-	fi
-
-	newins - "${triple}-clang-cpp.cfg" <<-EOF
-		# This configuration file is used by the ${triple}-clang-cpp driver.
-		@gentoo-common.cfg
-	EOF
-
-	# Install symlinks for triples with other vendor strings since some
-	# programs insist on mangling the triple.
-	local vendor
-	for vendor in gentoo pc unknown; do
-		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
-		for tool in clang{,++,-cpp}; do
-			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
-				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
-			fi
-		done
-	done
-}
-
-doclang_cfg() {
-	local triple="${1}"
-
-	_doclang_cfg ${triple}
-
-	# LLVM may have different arch names in some cases. For example in x86
-	# profiles the triple uses i686, but llvm will prefer i386 if invoked
-	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
-	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
-	#
-	# To make sure the correct triples are installed,
-	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
-	# and compare with CHOST values in profiles.
-
-	local abi=${triple%%-*}
-	case ${abi} in
-		armv4l|armv4t|armv5tel|armv6j|armv7a)
-			_doclang_cfg ${triple/${abi}/arm}
-			;;
-		i686)
-			_doclang_cfg ${triple/${abi}/i386}
-			;;
-		sparc)
-			_doclang_cfg ${triple/${abi}/sparcel}
-			;;
-		sparc64)
-			_doclang_cfg ${triple/${abi}/sparcv9}
-			;;
-	esac
-}
-
-src_install() {
-	newbashcomp bash-autocomplete.sh clang
-
-	insinto /etc/clang
-	newins - gentoo-runtimes.cfg <<-EOF
-		# This file is initially generated by sys-devel/clang-runtime.
-		# It is used to control the default runtimes using by clang.
-
-		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
-		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
-		--stdlib=$(usex default-libcxx libc++ libstdc++)
-		-fuse-ld=$(usex default-lld lld bfd)
-	EOF
-
-	newins - gentoo-gcc-install.cfg <<-EOF
-		# This file is maintained by gcc-config.
-		# It is used to specify the selected GCC installation.
-	EOF
-
-	newins - gentoo-common.cfg <<-EOF
-		# This file contains flags common to clang, clang++ and clang-cpp.
-		@gentoo-runtimes.cfg
-		@gentoo-gcc-install.cfg
-		@gentoo-hardened.cfg
-		# bug #870001
-		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
-	EOF
-
-	# clang-cpp does not like link args being passed to it when directly
-	# invoked, so use a separate configuration file.
-	newins - gentoo-common-ld.cfg <<-EOF
-		# This file contains flags common to clang and clang++
-		@gentoo-hardened-ld.cfg
-	EOF
-
-	# Baseline hardening (bug #851111)
-	newins - gentoo-hardened.cfg <<-EOF
-		# Some of these options are added unconditionally, regardless of
-		# USE=hardened, for parity with sys-devel/gcc.
-		-fstack-clash-protection
-		-fstack-protector-strong
-		-fPIE
-		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
-	EOF
-
-	if use amd64; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			-fcf-protection=$(usex cet full none)
-		EOF
-	fi
-
-	if use kernel_Darwin; then
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# There was -Wl,-z,relro here, but it's not supported on Mac
-			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
-		EOF
-	else
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# Some of these options are added unconditionally, regardless of
-			# USE=hardened, for parity with sys-devel/gcc.
-			-Wl,-z,relro
-			-Wl,-z,now
-		EOF
-	fi
-
-	dodir /usr/include/gentoo
-
-	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
-	/* __has_include is an extension, but it's fine, because this is only
-	for Clang anyway. */
-	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
-	# include <stdc-predef.h>
-	#endif
-	EOF
-
-	local fortify_level=$(usex hardened 3 2)
-	# We have to do this because glibc's headers warn if F_S is set
-	# without optimization and that would at the very least be very noisy
-	# during builds and at worst trigger many -Werror builds.
-	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
-	#ifdef __clang__
-	# pragma clang system_header
-	#endif
-	#ifndef _FORTIFY_SOURCE
-	# if defined(__has_feature)
-	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
-	# else
-	#  define __GENTOO_HAS_FEATURE(x) 0
-	# endif
-	#
-	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
-	#  define __GENTOO_NOT_FREESTANDING 1
-	# else
-	#  define __GENTOO_NOT_FREESTANDING 0
-	# endif
-	#
-	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
-	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
-	#   define _FORTIFY_SOURCE ${fortify_level}
-	#  endif
-	# endif
-	# undef __GENTOO_HAS_FEATURE
-	# undef __GENTOO_NOT_FREESTANDING
-	#endif
-	EOF
-
-	if use hardened ; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-			-D_GLIBCXX_ASSERTIONS
-
-			# Analogue to GLIBCXX_ASSERTIONS
-			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
-			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
-			-D_LIBCPP_ENABLE_ASSERTIONS=1
-		EOF
-
-		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-		EOF
-	fi
-
-	# We only install config files for supported ABIs because unprefixed tools
-	# might be used for crosscompilation where e.g. PIE may not be supported.
-	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
-	local abi
-	for abi in $(get_all_abis); do
-		local abi_chost=$(get_abi_CHOST "${abi}")
-		doclang_cfg "${abi_chost}"
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-			# Gentoo Prefix on Darwin
-			-Wl,-search_paths_first
-			-Wl,-rpath,${EPREFIX}/usr/lib
-			-L ${EPREFIX}/usr/lib
-			-isystem ${EPREFIX}/usr/include
-			-isysroot ${EPREFIX}/MacOSX.sdk
-		EOF
-		if use bootstrap-prefix ; then
-			# bootstrap-prefix is only set during stage2 of bootstrapping
-			# Prefix, where EPREFIX is set to EPREFIX/tmp.
-			# Here we need to point it at the future lib dir of the stage3's
-			# EPREFIX.
-			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-				-Wl,-rpath,${EPREFIX}/../usr/lib
-			EOF
-		fi
-	fi
-}
-
-pkg_preinst() {
-	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
-	then
-		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
-		if [[ -n ${gcc_path} ]]; then
-			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
-				--gcc-install-dir="${gcc_path%%:*}"
-			EOF
-		fi
-	fi
-}
diff --git a/sys-devel/clang-common/clang-common-17.0.6-r3.ebuild b/sys-devel/clang-common/clang-common-17.0.6-r3.ebuild
new file mode 100644
index 000000000000..f6796cb95d4e
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-17.0.6-r3.ebuild
@@ -0,0 +1,295 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org multilib
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
+IUSE="
+	default-compiler-rt default-libcxx default-lld
+	bootstrap-prefix cet hardened llvm-libunwind
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+_doclang_cfg() {
+	local triple="${1}"
+
+	local tool
+	for tool in ${triple}-clang{,++}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+			@gentoo-common-ld.cfg
+		EOF
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
+			-lc++abi
+		EOF
+	fi
+
+	newins - "${triple}-clang-cpp.cfg" <<-EOF
+		# This configuration file is used by the ${triple}-clang-cpp driver.
+		@gentoo-common.cfg
+	EOF
+
+	# Install symlinks for triples with other vendor strings since some
+	# programs insist on mangling the triple.
+	local vendor
+	for vendor in gentoo pc unknown; do
+		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
+		for tool in clang{,++,-cpp}; do
+			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
+				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
+			fi
+		done
+	done
+}
+
+doclang_cfg() {
+	local triple="${1}"
+
+	_doclang_cfg ${triple}
+
+	# LLVM may have different arch names in some cases. For example in x86
+	# profiles the triple uses i686, but llvm will prefer i386 if invoked
+	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
+	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
+	#
+	# To make sure the correct triples are installed,
+	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
+	# and compare with CHOST values in profiles.
+
+	local abi=${triple%%-*}
+	case ${abi} in
+		armv4l|armv4t|armv5tel|armv6j|armv7a)
+			_doclang_cfg ${triple/${abi}/arm}
+			;;
+		i686)
+			_doclang_cfg ${triple/${abi}/i386}
+			;;
+		sparc)
+			_doclang_cfg ${triple/${abi}/sparcel}
+			;;
+		sparc64)
+			_doclang_cfg ${triple/${abi}/sparcv9}
+			;;
+	esac
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	EOF
+
+	# clang-cpp does not like link args being passed to it when directly
+	# invoked, so use a separate configuration file.
+	newins - gentoo-common-ld.cfg <<-EOF
+		# This file contains flags common to clang and clang++
+		@gentoo-hardened-ld.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-Xarch_host -fstack-clash-protection
+		-Xarch_host -fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	if use amd64; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-Xarch_host -fcf-protection=$(usex cet full none)
+		EOF
+	fi
+
+	if use kernel_Darwin; then
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# There was -Wl,-z,relro here, but it's not supported on Mac
+			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
+		EOF
+	else
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# Some of these options are added unconditionally, regardless of
+			# USE=hardened, for parity with sys-devel/gcc.
+			-Wl,-z,relro
+			-Wl,-z,now
+		EOF
+	fi
+
+	dodir /usr/include/gentoo
+
+	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
+	/* __has_include is an extension, but it's fine, because this is only
+	for Clang anyway. */
+	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
+	# include <stdc-predef.h>
+	#endif
+	EOF
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+	#ifdef __clang__
+	# pragma clang system_header
+	#endif
+	#ifndef _FORTIFY_SOURCE
+	# if defined(__has_feature)
+	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
+	# else
+	#  define __GENTOO_HAS_FEATURE(x) 0
+	# endif
+	#
+	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
+	#  define __GENTOO_NOT_FREESTANDING 1
+	# else
+	#  define __GENTOO_NOT_FREESTANDING 0
+	# endif
+	#
+	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	# undef __GENTOO_NOT_FREESTANDING
+	#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+		EOF
+	fi
+
+	# We only install config files for supported ABIs because unprefixed tools
+	# might be used for crosscompilation where e.g. PIE may not be supported.
+	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
+	local abi
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		doclang_cfg "${abi_chost}"
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			# Gentoo Prefix on Darwin
+			-Wl,-search_paths_first
+			-Wl,-rpath,${EPREFIX}/usr/lib
+			-L ${EPREFIX}/usr/lib
+			-isystem ${EPREFIX}/usr/include
+			-isysroot ${EPREFIX}/MacOSX.sdk
+		EOF
+		if use bootstrap-prefix ; then
+			# bootstrap-prefix is only set during stage2 of bootstrapping
+			# Prefix, where EPREFIX is set to EPREFIX/tmp.
+			# Here we need to point it at the future lib dir of the stage3's
+			# EPREFIX.
+			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+				-Wl,-rpath,${EPREFIX}/../usr/lib
+			EOF
+		fi
+	fi
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-18.1.2-r1.ebuild b/sys-devel/clang-common/clang-common-18.1.2-r1.ebuild
deleted file mode 100644
index 085bc3ca2202..000000000000
--- a/sys-devel/clang-common/clang-common-18.1.2-r1.ebuild
+++ /dev/null
@@ -1,297 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit bash-completion-r1 llvm.org multilib
-
-DESCRIPTION="Common files shared between multiple slots of clang"
-HOMEPAGE="https://llvm.org/"
-
-LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
-SLOT="0"
-KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
-IUSE="
-	default-compiler-rt default-libcxx default-lld
-	bootstrap-prefix cet hardened llvm-libunwind
-"
-
-PDEPEND="
-	sys-devel/clang:*
-	default-compiler-rt? (
-		sys-devel/clang-runtime[compiler-rt]
-		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
-		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
-	)
-	!default-compiler-rt? ( sys-devel/gcc )
-	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
-	!default-libcxx? ( sys-devel/gcc )
-	default-lld? ( sys-devel/lld )
-	!default-lld? ( sys-devel/binutils )
-"
-IDEPEND="
-	!default-compiler-rt? ( sys-devel/gcc-config )
-	!default-libcxx? ( sys-devel/gcc-config )
-"
-
-LLVM_COMPONENTS=( clang/utils )
-llvm.org_set_globals
-
-pkg_pretend() {
-	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
-
-	local flag missing_flags=()
-	for flag in default-{compiler-rt,libcxx,lld}; do
-		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
-			missing_flags+=( "${flag}" )
-		fi
-	done
-
-	if [[ ${missing_flags[@]} ]]; then
-		eerror "It seems that you have the following flags set on sys-devel/clang:"
-		eerror
-		eerror "  ${missing_flags[*]}"
-		eerror
-		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
-		eerror "The build is being aborted to prevent breakage.  Please either set"
-		eerror "the respective flags on this ebuild, e.g.:"
-		eerror
-		eerror "  sys-devel/clang-common ${missing_flags[*]}"
-		eerror
-		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
-		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
-	fi
-}
-
-_doclang_cfg() {
-	local triple="${1}"
-
-	local tool
-	for tool in ${triple}-clang{,++}; do
-		newins - "${tool}.cfg" <<-EOF
-			# This configuration file is used by ${tool} driver.
-			@gentoo-common.cfg
-			@gentoo-common-ld.cfg
-		EOF
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
-			-lc++abi
-		EOF
-	fi
-
-	newins - "${triple}-clang-cpp.cfg" <<-EOF
-		# This configuration file is used by the ${triple}-clang-cpp driver.
-		@gentoo-common.cfg
-	EOF
-
-	# Install symlinks for triples with other vendor strings since some
-	# programs insist on mangling the triple.
-	local vendor
-	for vendor in gentoo pc unknown; do
-		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
-		for tool in clang{,++,-cpp}; do
-			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
-				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
-			fi
-		done
-	done
-}
-
-doclang_cfg() {
-	local triple="${1}"
-
-	_doclang_cfg ${triple}
-
-	# LLVM may have different arch names in some cases. For example in x86
-	# profiles the triple uses i686, but llvm will prefer i386 if invoked
-	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
-	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
-	#
-	# To make sure the correct triples are installed,
-	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
-	# and compare with CHOST values in profiles.
-
-	local abi=${triple%%-*}
-	case ${abi} in
-		armv4l|armv4t|armv5tel|armv6j|armv7a)
-			_doclang_cfg ${triple/${abi}/arm}
-			;;
-		i686)
-			_doclang_cfg ${triple/${abi}/i386}
-			;;
-		sparc)
-			_doclang_cfg ${triple/${abi}/sparcel}
-			;;
-		sparc64)
-			_doclang_cfg ${triple/${abi}/sparcv9}
-			;;
-	esac
-}
-
-src_install() {
-	newbashcomp bash-autocomplete.sh clang
-
-	insinto /etc/clang
-	newins - gentoo-runtimes.cfg <<-EOF
-		# This file is initially generated by sys-devel/clang-runtime.
-		# It is used to control the default runtimes using by clang.
-
-		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
-		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
-		--stdlib=$(usex default-libcxx libc++ libstdc++)
-		-fuse-ld=$(usex default-lld lld bfd)
-	EOF
-
-	newins - gentoo-gcc-install.cfg <<-EOF
-		# This file is maintained by gcc-config.
-		# It is used to specify the selected GCC installation.
-	EOF
-
-	newins - gentoo-common.cfg <<-EOF
-		# This file contains flags common to clang, clang++ and clang-cpp.
-		@gentoo-runtimes.cfg
-		@gentoo-gcc-install.cfg
-		@gentoo-hardened.cfg
-		# bug #870001
-		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
-	EOF
-
-	# clang-cpp does not like link args being passed to it when directly
-	# invoked, so use a separate configuration file.
-	newins - gentoo-common-ld.cfg <<-EOF
-		# This file contains flags common to clang and clang++
-		@gentoo-hardened-ld.cfg
-	EOF
-
-	# Baseline hardening (bug #851111)
-	newins - gentoo-hardened.cfg <<-EOF
-		# Some of these options are added unconditionally, regardless of
-		# USE=hardened, for parity with sys-devel/gcc.
-		-fstack-clash-protection
-		-fstack-protector-strong
-		-fPIE
-		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
-	EOF
-
-	if use amd64; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			-fcf-protection=$(usex cet full none)
-		EOF
-	fi
-
-	if use kernel_Darwin; then
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# There was -Wl,-z,relro here, but it's not supported on Mac
-			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
-		EOF
-	else
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# Some of these options are added unconditionally, regardless of
-			# USE=hardened, for parity with sys-devel/gcc.
-			-Wl,-z,relro
-			-Wl,-z,now
-		EOF
-	fi
-
-	dodir /usr/include/gentoo
-
-	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
-	/* __has_include is an extension, but it's fine, because this is only
-	for Clang anyway. */
-	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
-	# include <stdc-predef.h>
-	#endif
-	EOF
-
-	local fortify_level=$(usex hardened 3 2)
-	# We have to do this because glibc's headers warn if F_S is set
-	# without optimization and that would at the very least be very noisy
-	# during builds and at worst trigger many -Werror builds.
-	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
-	#ifdef __clang__
-	# pragma clang system_header
-	#endif
-	#ifndef _FORTIFY_SOURCE
-	# if defined(__has_feature)
-	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
-	# else
-	#  define __GENTOO_HAS_FEATURE(x) 0
-	# endif
-	#
-	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
-	#  define __GENTOO_NOT_FREESTANDING 1
-	# else
-	#  define __GENTOO_NOT_FREESTANDING 0
-	# endif
-	#
-	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
-	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
-	#   define _FORTIFY_SOURCE ${fortify_level}
-	#  endif
-	# endif
-	# undef __GENTOO_HAS_FEATURE
-	# undef __GENTOO_NOT_FREESTANDING
-	#endif
-	EOF
-
-	# TODO: Maybe -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST for
-	# non-hardened?
-	if use hardened ; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-			-D_GLIBCXX_ASSERTIONS
-
-			# Analogue to GLIBCXX_ASSERTIONS
-			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
-			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
-			-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE
-		EOF
-
-		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-		EOF
-	fi
-
-	# We only install config files for supported ABIs because unprefixed tools
-	# might be used for crosscompilation where e.g. PIE may not be supported.
-	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
-	local abi
-	for abi in $(get_all_abis); do
-		local abi_chost=$(get_abi_CHOST "${abi}")
-		doclang_cfg "${abi_chost}"
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-			# Gentoo Prefix on Darwin
-			-Wl,-search_paths_first
-			-Wl,-rpath,${EPREFIX}/usr/lib
-			-L ${EPREFIX}/usr/lib
-			-isystem ${EPREFIX}/usr/include
-			-isysroot ${EPREFIX}/MacOSX.sdk
-		EOF
-		if use bootstrap-prefix ; then
-			# bootstrap-prefix is only set during stage2 of bootstrapping
-			# Prefix, where EPREFIX is set to EPREFIX/tmp.
-			# Here we need to point it at the future lib dir of the stage3's
-			# EPREFIX.
-			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-				-Wl,-rpath,${EPREFIX}/../usr/lib
-			EOF
-		fi
-	fi
-}
-
-pkg_preinst() {
-	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
-	then
-		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
-		if [[ -n ${gcc_path} ]]; then
-			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
-				--gcc-install-dir="${gcc_path%%:*}"
-			EOF
-		fi
-	fi
-}
diff --git a/sys-devel/clang-common/clang-common-18.1.2-r2.ebuild b/sys-devel/clang-common/clang-common-18.1.2-r2.ebuild
new file mode 100644
index 000000000000..986593dfbbc2
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-18.1.2-r2.ebuild
@@ -0,0 +1,297 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org multilib
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
+IUSE="
+	default-compiler-rt default-libcxx default-lld
+	bootstrap-prefix cet hardened llvm-libunwind
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+_doclang_cfg() {
+	local triple="${1}"
+
+	local tool
+	for tool in ${triple}-clang{,++}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+			@gentoo-common-ld.cfg
+		EOF
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
+			-lc++abi
+		EOF
+	fi
+
+	newins - "${triple}-clang-cpp.cfg" <<-EOF
+		# This configuration file is used by the ${triple}-clang-cpp driver.
+		@gentoo-common.cfg
+	EOF
+
+	# Install symlinks for triples with other vendor strings since some
+	# programs insist on mangling the triple.
+	local vendor
+	for vendor in gentoo pc unknown; do
+		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
+		for tool in clang{,++,-cpp}; do
+			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
+				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
+			fi
+		done
+	done
+}
+
+doclang_cfg() {
+	local triple="${1}"
+
+	_doclang_cfg ${triple}
+
+	# LLVM may have different arch names in some cases. For example in x86
+	# profiles the triple uses i686, but llvm will prefer i386 if invoked
+	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
+	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
+	#
+	# To make sure the correct triples are installed,
+	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
+	# and compare with CHOST values in profiles.
+
+	local abi=${triple%%-*}
+	case ${abi} in
+		armv4l|armv4t|armv5tel|armv6j|armv7a)
+			_doclang_cfg ${triple/${abi}/arm}
+			;;
+		i686)
+			_doclang_cfg ${triple/${abi}/i386}
+			;;
+		sparc)
+			_doclang_cfg ${triple/${abi}/sparcel}
+			;;
+		sparc64)
+			_doclang_cfg ${triple/${abi}/sparcv9}
+			;;
+	esac
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	EOF
+
+	# clang-cpp does not like link args being passed to it when directly
+	# invoked, so use a separate configuration file.
+	newins - gentoo-common-ld.cfg <<-EOF
+		# This file contains flags common to clang and clang++
+		@gentoo-hardened-ld.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-Xarch_host -fstack-clash-protection
+		-Xarch_host -fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	if use amd64; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-Xarch_host -fcf-protection=$(usex cet full none)
+		EOF
+	fi
+
+	if use kernel_Darwin; then
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# There was -Wl,-z,relro here, but it's not supported on Mac
+			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
+		EOF
+	else
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# Some of these options are added unconditionally, regardless of
+			# USE=hardened, for parity with sys-devel/gcc.
+			-Wl,-z,relro
+			-Wl,-z,now
+		EOF
+	fi
+
+	dodir /usr/include/gentoo
+
+	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
+	/* __has_include is an extension, but it's fine, because this is only
+	for Clang anyway. */
+	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
+	# include <stdc-predef.h>
+	#endif
+	EOF
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+	#ifdef __clang__
+	# pragma clang system_header
+	#endif
+	#ifndef _FORTIFY_SOURCE
+	# if defined(__has_feature)
+	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
+	# else
+	#  define __GENTOO_HAS_FEATURE(x) 0
+	# endif
+	#
+	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
+	#  define __GENTOO_NOT_FREESTANDING 1
+	# else
+	#  define __GENTOO_NOT_FREESTANDING 0
+	# endif
+	#
+	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	# undef __GENTOO_NOT_FREESTANDING
+	#endif
+	EOF
+
+	# TODO: Maybe -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST for
+	# non-hardened?
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
+			-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+		EOF
+	fi
+
+	# We only install config files for supported ABIs because unprefixed tools
+	# might be used for crosscompilation where e.g. PIE may not be supported.
+	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
+	local abi
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		doclang_cfg "${abi_chost}"
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			# Gentoo Prefix on Darwin
+			-Wl,-search_paths_first
+			-Wl,-rpath,${EPREFIX}/usr/lib
+			-L ${EPREFIX}/usr/lib
+			-isystem ${EPREFIX}/usr/include
+			-isysroot ${EPREFIX}/MacOSX.sdk
+		EOF
+		if use bootstrap-prefix ; then
+			# bootstrap-prefix is only set during stage2 of bootstrapping
+			# Prefix, where EPREFIX is set to EPREFIX/tmp.
+			# Here we need to point it at the future lib dir of the stage3's
+			# EPREFIX.
+			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+				-Wl,-rpath,${EPREFIX}/../usr/lib
+			EOF
+		fi
+	fi
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-19.0.0.9999.ebuild b/sys-devel/clang-common/clang-common-19.0.0.9999.ebuild
index 290d4ee063fe..4cc526c1c3d1 100644
--- a/sys-devel/clang-common/clang-common-19.0.0.9999.ebuild
+++ b/sys-devel/clang-common/clang-common-19.0.0.9999.ebuild
@@ -168,15 +168,15 @@ src_install() {
 	newins - gentoo-hardened.cfg <<-EOF
 		# Some of these options are added unconditionally, regardless of
 		# USE=hardened, for parity with sys-devel/gcc.
-		-fstack-clash-protection
-		-fstack-protector-strong
+		-Xarch_host -fstack-clash-protection
+		-Xarch_host -fstack-protector-strong
 		-fPIE
 		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
 	EOF
 
 	if use amd64; then
 		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			-fcf-protection=$(usex cet full none)
+			-Xarch_host -fcf-protection=$(usex cet full none)
 		EOF
 	fi
 
diff --git a/sys-devel/clang-common/clang-common-19.0.0_pre20240322-r1.ebuild b/sys-devel/clang-common/clang-common-19.0.0_pre20240322-r1.ebuild
new file mode 100644
index 000000000000..4cc526c1c3d1
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-19.0.0_pre20240322-r1.ebuild
@@ -0,0 +1,296 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org multilib
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+IUSE="
+	default-compiler-rt default-libcxx default-lld
+	bootstrap-prefix cet hardened llvm-libunwind
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!default-lld? ( sys-devel/binutils )
+"
+IDEPEND="
+	!default-compiler-rt? ( sys-devel/gcc-config )
+	!default-libcxx? ( sys-devel/gcc-config )
+"
+
+LLVM_COMPONENTS=( clang/utils )
+llvm.org_set_globals
+
+pkg_pretend() {
+	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
+
+	local flag missing_flags=()
+	for flag in default-{compiler-rt,libcxx,lld}; do
+		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
+		eerror "The build is being aborted to prevent breakage.  Please either set"
+		eerror "the respective flags on this ebuild, e.g.:"
+		eerror
+		eerror "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+_doclang_cfg() {
+	local triple="${1}"
+
+	local tool
+	for tool in ${triple}-clang{,++}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+			@gentoo-common-ld.cfg
+		EOF
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
+			-lc++abi
+		EOF
+	fi
+
+	newins - "${triple}-clang-cpp.cfg" <<-EOF
+		# This configuration file is used by the ${triple}-clang-cpp driver.
+		@gentoo-common.cfg
+	EOF
+
+	# Install symlinks for triples with other vendor strings since some
+	# programs insist on mangling the triple.
+	local vendor
+	for vendor in gentoo pc unknown; do
+		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
+		for tool in clang{,++,-cpp}; do
+			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
+				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
+			fi
+		done
+	done
+}
+
+doclang_cfg() {
+	local triple="${1}"
+
+	_doclang_cfg ${triple}
+
+	# LLVM may have different arch names in some cases. For example in x86
+	# profiles the triple uses i686, but llvm will prefer i386 if invoked
+	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
+	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
+	#
+	# To make sure the correct triples are installed,
+	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
+	# and compare with CHOST values in profiles.
+
+	local abi=${triple%%-*}
+	case ${abi} in
+		armv4l|armv4t|armv5tel|armv6j|armv7a)
+			_doclang_cfg ${triple/${abi}/arm}
+			;;
+		i686)
+			_doclang_cfg ${triple/${abi}/i386}
+			;;
+		sparc)
+			_doclang_cfg ${triple/${abi}/sparcel}
+			;;
+		sparc64)
+			_doclang_cfg ${triple/${abi}/sparcv9}
+			;;
+	esac
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	EOF
+
+	# clang-cpp does not like link args being passed to it when directly
+	# invoked, so use a separate configuration file.
+	newins - gentoo-common-ld.cfg <<-EOF
+		# This file contains flags common to clang and clang++
+		@gentoo-hardened-ld.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-Xarch_host -fstack-clash-protection
+		-Xarch_host -fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	if use amd64; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			-Xarch_host -fcf-protection=$(usex cet full none)
+		EOF
+	fi
+
+	if use kernel_Darwin; then
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# There was -Wl,-z,relro here, but it's not supported on Mac
+			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
+		EOF
+	else
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# Some of these options are added unconditionally, regardless of
+			# USE=hardened, for parity with sys-devel/gcc.
+			-Wl,-z,relro
+			-Wl,-z,now
+		EOF
+	fi
+
+	dodir /usr/include/gentoo
+
+	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
+	/* __has_include is an extension, but it's fine, because this is only
+	for Clang anyway. */
+	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
+	# include <stdc-predef.h>
+	#endif
+	EOF
+
+	local fortify_level=$(usex hardened 3 2)
+	# We have to do this because glibc's headers warn if F_S is set
+	# without optimization and that would at the very least be very noisy
+	# during builds and at worst trigger many -Werror builds.
+	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
+	#ifdef __clang__
+	# pragma clang system_header
+	#endif
+	#ifndef _FORTIFY_SOURCE
+	# if defined(__has_feature)
+	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
+	# else
+	#  define __GENTOO_HAS_FEATURE(x) 0
+	# endif
+	#
+	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
+	#  define __GENTOO_NOT_FREESTANDING 1
+	# else
+	#  define __GENTOO_NOT_FREESTANDING 0
+	# endif
+	#
+	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	# undef __GENTOO_NOT_FREESTANDING
+	#endif
+	EOF
+
+	# TODO: Maybe -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST for
+	# non-hardened?
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
+			-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+		EOF
+	fi
+
+	# We only install config files for supported ABIs because unprefixed tools
+	# might be used for crosscompilation where e.g. PIE may not be supported.
+	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
+	local abi
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		doclang_cfg "${abi_chost}"
+	done
+
+	if use kernel_Darwin; then
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			# Gentoo Prefix on Darwin
+			-Wl,-search_paths_first
+			-Wl,-rpath,${EPREFIX}/usr/lib
+			-L ${EPREFIX}/usr/lib
+			-isystem ${EPREFIX}/usr/include
+			-isysroot ${EPREFIX}/MacOSX.sdk
+		EOF
+		if use bootstrap-prefix ; then
+			# bootstrap-prefix is only set during stage2 of bootstrapping
+			# Prefix, where EPREFIX is set to EPREFIX/tmp.
+			# Here we need to point it at the future lib dir of the stage3's
+			# EPREFIX.
+			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+				-Wl,-rpath,${EPREFIX}/../usr/lib
+			EOF
+		fi
+	fi
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
+		if [[ -n ${gcc_path} ]]; then
+			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
+				--gcc-install-dir="${gcc_path%%:*}"
+			EOF
+		fi
+	fi
+}
diff --git a/sys-devel/clang-common/clang-common-19.0.0_pre20240322.ebuild b/sys-devel/clang-common/clang-common-19.0.0_pre20240322.ebuild
deleted file mode 100644
index 290d4ee063fe..000000000000
--- a/sys-devel/clang-common/clang-common-19.0.0_pre20240322.ebuild
+++ /dev/null
@@ -1,296 +0,0 @@
-# Copyright 1999-2024 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit bash-completion-r1 llvm.org multilib
-
-DESCRIPTION="Common files shared between multiple slots of clang"
-HOMEPAGE="https://llvm.org/"
-
-LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
-SLOT="0"
-IUSE="
-	default-compiler-rt default-libcxx default-lld
-	bootstrap-prefix cet hardened llvm-libunwind
-"
-
-PDEPEND="
-	sys-devel/clang:*
-	default-compiler-rt? (
-		sys-devel/clang-runtime[compiler-rt]
-		llvm-libunwind? ( sys-libs/llvm-libunwind[static-libs] )
-		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
-	)
-	!default-compiler-rt? ( sys-devel/gcc )
-	default-libcxx? ( >=sys-libs/libcxx-${PV}[static-libs] )
-	!default-libcxx? ( sys-devel/gcc )
-	default-lld? ( sys-devel/lld )
-	!default-lld? ( sys-devel/binutils )
-"
-IDEPEND="
-	!default-compiler-rt? ( sys-devel/gcc-config )
-	!default-libcxx? ( sys-devel/gcc-config )
-"
-
-LLVM_COMPONENTS=( clang/utils )
-llvm.org_set_globals
-
-pkg_pretend() {
-	[[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return
-
-	local flag missing_flags=()
-	for flag in default-{compiler-rt,libcxx,lld}; do
-		if ! use "${flag}" && has_version "sys-devel/clang[${flag}]"; then
-			missing_flags+=( "${flag}" )
-		fi
-	done
-
-	if [[ ${missing_flags[@]} ]]; then
-		eerror "It seems that you have the following flags set on sys-devel/clang:"
-		eerror
-		eerror "  ${missing_flags[*]}"
-		eerror
-		eerror "The default runtimes are now set via flags on sys-devel/clang-common."
-		eerror "The build is being aborted to prevent breakage.  Please either set"
-		eerror "the respective flags on this ebuild, e.g.:"
-		eerror
-		eerror "  sys-devel/clang-common ${missing_flags[*]}"
-		eerror
-		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
-		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
-	fi
-}
-
-_doclang_cfg() {
-	local triple="${1}"
-
-	local tool
-	for tool in ${triple}-clang{,++}; do
-		newins - "${tool}.cfg" <<-EOF
-			# This configuration file is used by ${tool} driver.
-			@gentoo-common.cfg
-			@gentoo-common-ld.cfg
-		EOF
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die
-			-lc++abi
-		EOF
-	fi
-
-	newins - "${triple}-clang-cpp.cfg" <<-EOF
-		# This configuration file is used by the ${triple}-clang-cpp driver.
-		@gentoo-common.cfg
-	EOF
-
-	# Install symlinks for triples with other vendor strings since some
-	# programs insist on mangling the triple.
-	local vendor
-	for vendor in gentoo pc unknown; do
-		local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
-		for tool in clang{,++,-cpp}; do
-			if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then
-				dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg"
-			fi
-		done
-	done
-}
-
-doclang_cfg() {
-	local triple="${1}"
-
-	_doclang_cfg ${triple}
-
-	# LLVM may have different arch names in some cases. For example in x86
-	# profiles the triple uses i686, but llvm will prefer i386 if invoked
-	# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
-	# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
-	#
-	# To make sure the correct triples are installed,
-	# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
-	# and compare with CHOST values in profiles.
-
-	local abi=${triple%%-*}
-	case ${abi} in
-		armv4l|armv4t|armv5tel|armv6j|armv7a)
-			_doclang_cfg ${triple/${abi}/arm}
-			;;
-		i686)
-			_doclang_cfg ${triple/${abi}/i386}
-			;;
-		sparc)
-			_doclang_cfg ${triple/${abi}/sparcel}
-			;;
-		sparc64)
-			_doclang_cfg ${triple/${abi}/sparcv9}
-			;;
-	esac
-}
-
-src_install() {
-	newbashcomp bash-autocomplete.sh clang
-
-	insinto /etc/clang
-	newins - gentoo-runtimes.cfg <<-EOF
-		# This file is initially generated by sys-devel/clang-runtime.
-		# It is used to control the default runtimes using by clang.
-
-		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
-		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
-		--stdlib=$(usex default-libcxx libc++ libstdc++)
-		-fuse-ld=$(usex default-lld lld bfd)
-	EOF
-
-	newins - gentoo-gcc-install.cfg <<-EOF
-		# This file is maintained by gcc-config.
-		# It is used to specify the selected GCC installation.
-	EOF
-
-	newins - gentoo-common.cfg <<-EOF
-		# This file contains flags common to clang, clang++ and clang-cpp.
-		@gentoo-runtimes.cfg
-		@gentoo-gcc-install.cfg
-		@gentoo-hardened.cfg
-		# bug #870001
-		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
-	EOF
-
-	# clang-cpp does not like link args being passed to it when directly
-	# invoked, so use a separate configuration file.
-	newins - gentoo-common-ld.cfg <<-EOF
-		# This file contains flags common to clang and clang++
-		@gentoo-hardened-ld.cfg
-	EOF
-
-	# Baseline hardening (bug #851111)
-	newins - gentoo-hardened.cfg <<-EOF
-		# Some of these options are added unconditionally, regardless of
-		# USE=hardened, for parity with sys-devel/gcc.
-		-fstack-clash-protection
-		-fstack-protector-strong
-		-fPIE
-		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
-	EOF
-
-	if use amd64; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			-fcf-protection=$(usex cet full none)
-		EOF
-	fi
-
-	if use kernel_Darwin; then
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# There was -Wl,-z,relro here, but it's not supported on Mac
-			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
-		EOF
-	else
-		newins - gentoo-hardened-ld.cfg <<-EOF
-			# Some of these options are added unconditionally, regardless of
-			# USE=hardened, for parity with sys-devel/gcc.
-			-Wl,-z,relro
-			-Wl,-z,now
-		EOF
-	fi
-
-	dodir /usr/include/gentoo
-
-	cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die
-	/* __has_include is an extension, but it's fine, because this is only
-	for Clang anyway. */
-	#if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__)
-	# include <stdc-predef.h>
-	#endif
-	EOF
-
-	local fortify_level=$(usex hardened 3 2)
-	# We have to do this because glibc's headers warn if F_S is set
-	# without optimization and that would at the very least be very noisy
-	# during builds and at worst trigger many -Werror builds.
-	cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die
-	#ifdef __clang__
-	# pragma clang system_header
-	#endif
-	#ifndef _FORTIFY_SOURCE
-	# if defined(__has_feature)
-	#  define __GENTOO_HAS_FEATURE(x) __has_feature(x)
-	# else
-	#  define __GENTOO_HAS_FEATURE(x) 0
-	# endif
-	#
-	# if defined(__STDC_HOSTED__) && __STDC_HOSTED__ == 1
-	#  define __GENTOO_NOT_FREESTANDING 1
-	# else
-	#  define __GENTOO_NOT_FREESTANDING 0
-	# endif
-	#
-	# if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 && __GENTOO_NOT_FREESTANDING > 0
-	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
-	#   define _FORTIFY_SOURCE ${fortify_level}
-	#  endif
-	# endif
-	# undef __GENTOO_HAS_FEATURE
-	# undef __GENTOO_NOT_FREESTANDING
-	#endif
-	EOF
-
-	# TODO: Maybe -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST for
-	# non-hardened?
-	if use hardened ; then
-		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-			-D_GLIBCXX_ASSERTIONS
-
-			# Analogue to GLIBCXX_ASSERTIONS
-			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
-			# https://libcxx.llvm.org/Hardening.html#using-hardened-mode
-			-D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE
-		EOF
-
-		cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die
-			# Options below are conditional on USE=hardened.
-		EOF
-	fi
-
-	# We only install config files for supported ABIs because unprefixed tools
-	# might be used for crosscompilation where e.g. PIE may not be supported.
-	# See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685.
-	local abi
-	for abi in $(get_all_abis); do
-		local abi_chost=$(get_abi_CHOST "${abi}")
-		doclang_cfg "${abi_chost}"
-	done
-
-	if use kernel_Darwin; then
-		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-			# Gentoo Prefix on Darwin
-			-Wl,-search_paths_first
-			-Wl,-rpath,${EPREFIX}/usr/lib
-			-L ${EPREFIX}/usr/lib
-			-isystem ${EPREFIX}/usr/include
-			-isysroot ${EPREFIX}/MacOSX.sdk
-		EOF
-		if use bootstrap-prefix ; then
-			# bootstrap-prefix is only set during stage2 of bootstrapping
-			# Prefix, where EPREFIX is set to EPREFIX/tmp.
-			# Here we need to point it at the future lib dir of the stage3's
-			# EPREFIX.
-			cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
-				-Wl,-rpath,${EPREFIX}/../usr/lib
-			EOF
-		fi
-	fi
-}
-
-pkg_preinst() {
-	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
-	then
-		local gcc_path=$(gcc-config --get-lib-path 2>/dev/null)
-		if [[ -n ${gcc_path} ]]; then
-			cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF
-				--gcc-install-dir="${gcc_path%%:*}"
-			EOF
-		fi
-	fi
-}
-- 
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