From ebc282ef4dfa408accac685565b8ee5f6faec119 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@koprulu.sector>
Date: Sun, 12 Feb 2023 09:56:54 +0000
Subject: gentoo auto-resync : 12:02:2023 - 09:56:54

---
 sys-devel/clang/Manifest                        |   9 +-
 sys-devel/clang/clang-16.0.0_pre20230107.ebuild | 473 ------------------------
 sys-devel/clang/clang-16.0.0_pre20230127.ebuild | 472 -----------------------
 sys-devel/clang/clang-16.0.0_rc2.ebuild         | 472 +++++++++++++++++++++++
 sys-devel/clang/clang-17.0.0_pre20230211.ebuild | 472 +++++++++++++++++++++++
 5 files changed, 949 insertions(+), 949 deletions(-)
 delete mode 100644 sys-devel/clang/clang-16.0.0_pre20230107.ebuild
 delete mode 100644 sys-devel/clang/clang-16.0.0_pre20230127.ebuild
 create mode 100644 sys-devel/clang/clang-16.0.0_rc2.ebuild
 create mode 100644 sys-devel/clang/clang-17.0.0_pre20230211.ebuild

(limited to 'sys-devel/clang')

diff --git a/sys-devel/clang/Manifest b/sys-devel/clang/Manifest
index d97119de4381..7c5e24a7cfa2 100644
--- a/sys-devel/clang/Manifest
+++ b/sys-devel/clang/Manifest
@@ -9,14 +9,15 @@ DIST llvm-project-15.0.7.src.tar.xz 110936452 BLAKE2B f3d277e2029157329e5be78b78
 DIST llvm-project-15.0.7.src.tar.xz.sig 566 BLAKE2B 47dc8c82d86237b80c6d85f83a6c9a6e9e174cf8e7f367b071e0cd9481d7cd408e991337c5624e07f3f370f26387c814f212808575ed1c1b58404d3e3836b7df SHA512 fc6891b440dd1175eb8df3790590af8d36bc92301660f84744ae15123475aeb900a151e6a8e7998ded27ec4d86871903ad0b89cd61164943054c2e3bc8d8beb2
 DIST llvm-project-16.0.0rc1.src.tar.xz 118364920 BLAKE2B 449fa321722e77d1a595d0f1f52a4e9492954d928355402f6e07e6c8a20e4ebfc03690ef8272b92eb5cdd58c97ca37fa6baf847d399e36a84e3ea7d94d1ea6ca SHA512 a24074ea8e21af49b0545f02bdec4727e8df841e59340dc189cc5a144a70fc6880e82381fba622ac62c7504f7bf394c916c773ee25904e8faf41eaedce6ae9e0
 DIST llvm-project-16.0.0rc1.src.tar.xz.sig 566 BLAKE2B 29a593f74b05ef6268f0b2ee5ebd810a244e7c6b27dd94f709b22bca8e6c8367f8321a6ec61f85476cd399f31519ac2a3c978014afae29490c1e70d26eb6c35f SHA512 dcca03d41ee3cc7d5b150184b03eb9f2e579603ce9cd5289360d1ca47169174afc26a85079cf096ec91e23f487f0b38bb6cd5fb7e5197530582155b16a5ce748
-DIST llvm-project-46d5a57801bc37e5ebb1a4d6b2acc0fa99c01e8d.tar.gz 180436731 BLAKE2B 51c30c3f11dd55a225b8ebe4ded752ce9e8eb58751e7458c29901dbdd3673f94892d337d111d696e779e3f7ef0bca6c7d79709e2072a4bf3a001d8813125d571 SHA512 ebbe0f8becac39d63433dcc3de474c40f1215fc8faab94fa2ba869d28e66b27e4fe088377bd7ae64575a6d7b07017b88bf92e5488a3185a753e647d8da352bbf
-DIST llvm-project-6dc85bd3fde7df2999fda07e9e9f2e83d52c6125.tar.gz 175208511 BLAKE2B cf87cf7e9bf7c74aab8ccda0f153369cb81798047fdd48025c3c7030857b128babbaafb667385a5c8e9916e16038b14fee39f1623d329471e73c39c2f2d7bbfa SHA512 e6dc0cacd6c079be8a00364e4c244782d764d9a8d514d65f9078427cb4a0c1663ff88761bfbc1e955a1a990451439110497c2cb7af7f56b2c91f2e9db4389894
+DIST llvm-project-16.0.0rc2.src.tar.xz 117917640 BLAKE2B 92c6b1daaa500339403dcf530efb23e1d869c7b9cd8677a6680e57d5d087fb54182f009d58bdda714b62a5866d7fe3b10deedc1e251fffdaae513706d95325af SHA512 c68bb7f2a8004666ecc5c55e89e2ca1252b384e6240a2b7c5588b74794ffc6ce93bb4b0db394abba6436cce04a6de301e80821aeda04d7aab49efb96b6f8cf40
+DIST llvm-project-16.0.0rc2.src.tar.xz.sig 566 BLAKE2B 35b2a8edf3392e1c0e9bf7f1a5e6e18fdda3d98a2164947cebf0c19d7d7c7a459901060345745dff794cf99bea243fec5cb625ca68d7c73d31ac01f18cbaa58c SHA512 4f6d43f00c3bce36c3a005441473fe37fe2ca97df4b8dd306045bd0d8bd14406ae7068a3dea54d4535eaa37b7ccca54b3f5b6f5aef70a7dfc23ed336d4ad408c
+DIST llvm-project-22fb66eb94b643c858c2beecbcfac438a7fa29ed.tar.gz 179795537 BLAKE2B aef57ef739c52a8f8b2b327a8f6d8cce4734d9704018fb43a21468e56748e5d5b3d2d47fb4e95fd72b2af9f2e4be88839553e26fd7da08df60c5cc0f51c001d4 SHA512 9ed093ef7dac4891660aafbc5cad66bddefa796bff4dd70c792cc636268742142d82b84520ac2f5a5963521d7b9e4325440763ce0c88937f89722f07d3acd4b8
 EBUILD clang-14.0.6-r1.ebuild 11939 BLAKE2B ef1d63a056e0a183ee377e041f78d04c05c90a1242cd860e118f24f195c53dcb79d758b80e1f8f29d46bb15a55fa804cd4f6b71415a08f3f23bca4003b708a09 SHA512 49059b0c924c23d72cd1db553d83114568b75e5cf485230ab4b70a8e62ed63fbe513c67cecfcb2d64826818af6d5e391bc8e056ae2162e1f36a25320c3d103d5
 EBUILD clang-15.0.7-r1.ebuild 12334 BLAKE2B 202bb7812b97a83f6391fa264d261905cb0b91cf28e68b83d3d793b4590b08278e960ce5f7810ea3042b99f90ca63ac758850ca61c312c87488bf9941ad5b248 SHA512 b5dee261a96ed7a514277743fb4a06907acedb553ed0a3c99171698240bfc6a7a19b8f6e0392e1b69b55a5b51e65ae96d1c9dc91b655d8de2f485b1b11a8dec5
 EBUILD clang-16.0.0.9999.ebuild 12029 BLAKE2B dbfa7cb9115b0f9e4c04a9cae79fe0834a7692deaf9b7a7b96164bba943de6efce94dbeeb4d940b1b8feca2ad400bd62b6c935fa686a28b6bd9e9245d7d988f0 SHA512 97d6102649a37c1dfc9876834f2a36ebc69042cfcf70924a35fa38fdb892401c481c18f426ecbbb94059fbda7cf52dc3c06b5c72ed4d18a619803e1c77900bff
-EBUILD clang-16.0.0_pre20230107.ebuild 12108 BLAKE2B 63f8b22b4f154bb3ad33259f56288eb67db50171a22e2446ccf951e5a7feb62a12db4c72a4296ad8d2f6254d1613d0a945d8f169e20a3865170d048d51e37b08 SHA512 03e64c79d0ed3ae47029a238fda98116b60f2f7a83f6a96dd639d31c1cbd30a7eb50d30a66d5642ab257bc6fa65b9eab2608c5f4af3505fb4e016b4d1c043a09
-EBUILD clang-16.0.0_pre20230127.ebuild 12029 BLAKE2B dbfa7cb9115b0f9e4c04a9cae79fe0834a7692deaf9b7a7b96164bba943de6efce94dbeeb4d940b1b8feca2ad400bd62b6c935fa686a28b6bd9e9245d7d988f0 SHA512 97d6102649a37c1dfc9876834f2a36ebc69042cfcf70924a35fa38fdb892401c481c18f426ecbbb94059fbda7cf52dc3c06b5c72ed4d18a619803e1c77900bff
 EBUILD clang-16.0.0_rc1.ebuild 12035 BLAKE2B 933bde95b6da71d5e0157e861e65022504bef6d7f500e514d051aadf35dea3adcafd88686e3746a9c9a4e9da73e1b228a60b43f89a599031d380336f6c285b84 SHA512 7132f1a2d846ba4061a59477f1ef14fa3fc40192c8d5fe24018a5edcd6ec5c4ee1688eaafad4ff44cb4ea95e67ad6c4d35f405aa486c4a94b232032d1bb6b696
+EBUILD clang-16.0.0_rc2.ebuild 12035 BLAKE2B 933bde95b6da71d5e0157e861e65022504bef6d7f500e514d051aadf35dea3adcafd88686e3746a9c9a4e9da73e1b228a60b43f89a599031d380336f6c285b84 SHA512 7132f1a2d846ba4061a59477f1ef14fa3fc40192c8d5fe24018a5edcd6ec5c4ee1688eaafad4ff44cb4ea95e67ad6c4d35f405aa486c4a94b232032d1bb6b696
 EBUILD clang-17.0.0.9999.ebuild 12029 BLAKE2B dbfa7cb9115b0f9e4c04a9cae79fe0834a7692deaf9b7a7b96164bba943de6efce94dbeeb4d940b1b8feca2ad400bd62b6c935fa686a28b6bd9e9245d7d988f0 SHA512 97d6102649a37c1dfc9876834f2a36ebc69042cfcf70924a35fa38fdb892401c481c18f426ecbbb94059fbda7cf52dc3c06b5c72ed4d18a619803e1c77900bff
 EBUILD clang-17.0.0_pre20230203.ebuild 12029 BLAKE2B dbfa7cb9115b0f9e4c04a9cae79fe0834a7692deaf9b7a7b96164bba943de6efce94dbeeb4d940b1b8feca2ad400bd62b6c935fa686a28b6bd9e9245d7d988f0 SHA512 97d6102649a37c1dfc9876834f2a36ebc69042cfcf70924a35fa38fdb892401c481c18f426ecbbb94059fbda7cf52dc3c06b5c72ed4d18a619803e1c77900bff
+EBUILD clang-17.0.0_pre20230211.ebuild 12029 BLAKE2B dbfa7cb9115b0f9e4c04a9cae79fe0834a7692deaf9b7a7b96164bba943de6efce94dbeeb4d940b1b8feca2ad400bd62b6c935fa686a28b6bd9e9245d7d988f0 SHA512 97d6102649a37c1dfc9876834f2a36ebc69042cfcf70924a35fa38fdb892401c481c18f426ecbbb94059fbda7cf52dc3c06b5c72ed4d18a619803e1c77900bff
 MISC metadata.xml 1600 BLAKE2B 8e49e099132445cf695e904acad8a699f3d8c4c1e4cd6ba9d0b97180dfa5b67e9c30b00d1e4cb6cd2f61b27f022accc8d6ee889c6569fc58fbc058186ad216fc SHA512 96b7cf4988ff1fd923ec87311caed458b64888b5acaaf20cc1ad893f2a963158f7f59398f9fd4f9e65cab3df265c0d002048ff874f7a76b94f36377bf9e8f5f6
diff --git a/sys-devel/clang/clang-16.0.0_pre20230107.ebuild b/sys-devel/clang/clang-16.0.0_pre20230107.ebuild
deleted file mode 100644
index f6e6fd239ce2..000000000000
--- a/sys-devel/clang/clang-16.0.0_pre20230107.ebuild
+++ /dev/null
@@ -1,473 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{9..11} )
-inherit cmake llvm llvm.org multilib multilib-minimal \
-	prefix python-single-r1 toolchain-funcs
-
-DESCRIPTION="C language family frontend for LLVM"
-HOMEPAGE="https://llvm.org/"
-
-# MSVCSetupApi.h: MIT
-# sorttable.js: MIT
-
-LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
-SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
-KEYWORDS="~loong"
-IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
-REQUIRED_USE="${PYTHON_REQUIRED_USE}"
-RESTRICT="!test? ( test )"
-
-DEPEND="
-	~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
-	static-analyzer? ( dev-lang/perl:* )
-	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
-"
-
-RDEPEND="
-	${PYTHON_DEPS}
-	${DEPEND}
-	>=sys-devel/clang-common-${PV}
-"
-BDEPEND="
-	${PYTHON_DEPS}
-	>=dev-util/cmake-3.16
-	doc? ( $(python_gen_cond_dep '
-		dev-python/recommonmark[${PYTHON_USEDEP}]
-		dev-python/sphinx[${PYTHON_USEDEP}]
-	') )
-	xml? ( virtual/pkgconfig )
-"
-PDEPEND="
-	~sys-devel/clang-runtime-${PV}
-	sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
-"
-
-LLVM_COMPONENTS=(
-	clang clang-tools-extra cmake
-	llvm/lib/Transforms/Hello
-)
-LLVM_MANPAGES=1
-LLVM_TEST_COMPONENTS=(
-	llvm/lib/Testing/Support
-	llvm/utils
-	third-party
-)
-LLVM_USE_TARGETS=llvm
-llvm.org_set_globals
-
-# Multilib notes:
-# 1. ABI_* flags control ABIs libclang* is built for only.
-# 2. clang is always capable of compiling code for all ABIs for enabled
-#    target. However, you will need appropriate crt* files (installed
-#    e.g. by sys-devel/gcc and sys-libs/glibc).
-# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
-#    in the current profile (i.e. alike supported by sys-devel/gcc).
-#
-# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
-# multilib clang* libraries (not runtime, not wrappers).
-
-pkg_setup() {
-	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
-	python-single-r1_pkg_setup
-}
-
-src_prepare() {
-	# create extra parent dir for relative CLANG_RESOURCE_DIR access
-	mkdir -p x/y || die
-	BUILD_DIR=${WORKDIR}/x/y/clang
-
-	llvm.org_src_prepare
-
-	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
-	eprefixify \
-		lib/Lex/InitHeaderSearch.cpp \
-		lib/Driver/ToolChains/Darwin.cpp || die
-
-	if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
-		sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
-	fi
-}
-
-check_distribution_components() {
-	if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
-		local all_targets=() my_targets=() l
-		cd "${BUILD_DIR}" || die
-
-		while read -r l; do
-			if [[ ${l} == install-*-stripped:* ]]; then
-				l=${l#install-}
-				l=${l%%-stripped*}
-
-				case ${l} in
-					# meta-targets
-					clang-libraries|distribution)
-						continue
-						;;
-					# tools
-					clang|clangd|clang-*)
-						;;
-					# static libraries
-					clang*|findAllSymbols)
-						continue
-						;;
-					# conditional to USE=doc
-					docs-clang-html|docs-clang-tools-html)
-						use doc || continue
-						;;
-				esac
-
-				all_targets+=( "${l}" )
-			fi
-		done < <(${NINJA} -t targets all)
-
-		while read -r l; do
-			my_targets+=( "${l}" )
-		done < <(get_distribution_components $"\n")
-
-		local add=() remove=()
-		for l in "${all_targets[@]}"; do
-			if ! has "${l}" "${my_targets[@]}"; then
-				add+=( "${l}" )
-			fi
-		done
-		for l in "${my_targets[@]}"; do
-			if ! has "${l}" "${all_targets[@]}"; then
-				remove+=( "${l}" )
-			fi
-		done
-
-		if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
-			eqawarn "get_distribution_components() is outdated!"
-			eqawarn "   Add: ${add[*]}"
-			eqawarn "Remove: ${remove[*]}"
-		fi
-		cd - >/dev/null || die
-	fi
-}
-
-get_distribution_components() {
-	local sep=${1-;}
-
-	local out=(
-		# common stuff
-		clang-cmake-exports
-		clang-headers
-		clang-resource-headers
-		libclang-headers
-
-		aarch64-resource-headers
-		arm-common-resource-headers
-		arm-resource-headers
-		core-resource-headers
-		cuda-resource-headers
-		hexagon-resource-headers
-		hip-resource-headers
-		hlsl-resource-headers
-		mips-resource-headers
-		opencl-resource-headers
-		openmp-resource-headers
-		ppc-htm-resource-headers
-		ppc-resource-headers
-		riscv-resource-headers
-		systemz-resource-headers
-		utility-resource-headers
-		ve-resource-headers
-		webassembly-resource-headers
-		windows-resource-headers
-		x86-resource-headers
-
-		# libs
-		clang-cpp
-		libclang
-	)
-
-	if multilib_is_native_abi; then
-		out+=(
-			# common stuff
-			bash-autocomplete
-			libclang-python-bindings
-
-			# tools
-			c-index-test
-			clang
-			clang-format
-			clang-offload-bundler
-			clang-offload-packager
-			clang-refactor
-			clang-repl
-			clang-rename
-			clang-scan-deps
-			diagtool
-			hmaptool
-
-			# needed for cross-compiling Clang
-			clang-tblgen
-		)
-
-		if use extra; then
-			out+=(
-				# extra tools
-				clang-apply-replacements
-				clang-change-namespace
-				clang-doc
-				clang-include-cleaner
-				clang-include-fixer
-				clang-move
-				clang-pseudo
-				clang-query
-				clang-reorder-fields
-				clang-tidy
-				clang-tidy-headers
-				clangd
-				find-all-symbols
-				modularize
-				pp-trace
-			)
-		fi
-
-		if llvm_are_manpages_built; then
-			out+=( docs-clang-man )
-			use extra && out+=( docs-clang-tools-man )
-		fi
-
-		if use doc; then
-			out+=( docs-clang-html )
-			use extra && out+=( docs-clang-tools-html )
-		fi
-
-		use static-analyzer && out+=(
-			clang-check
-			clang-extdef-mapping
-			scan-build
-			scan-build-py
-			scan-view
-		)
-	fi
-
-	printf "%s${sep}" "${out[@]}"
-}
-
-multilib_src_configure() {
-	local mycmakeargs=(
-		-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
-		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
-		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
-		-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
-		# relative to bindir
-		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
-
-		-DBUILD_SHARED_LIBS=OFF
-		-DCLANG_LINK_CLANG_DYLIB=ON
-		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
-		-DCLANG_INCLUDE_TESTS=$(usex test)
-
-		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
-
-		-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
-		# libgomp support fails to find headers without explicit -I
-		# furthermore, it provides only syntax checking
-		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
-
-		# disable using CUDA to autodetect GPU, just build for all
-		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
-
-		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
-
-		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
-		-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
-
-		-DPython3_EXECUTABLE="${PYTHON}"
-	)
-
-	if ! use elibc_musl; then
-		mycmakeargs+=(
-			-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
-		)
-	fi
-
-	use test && mycmakeargs+=(
-		-DLLVM_BUILD_TESTS=ON
-		-DLLVM_LIT_ARGS="$(get_lit_flags)"
-	)
-
-	if multilib_is_native_abi; then
-		local build_docs=OFF
-		if llvm_are_manpages_built; then
-			build_docs=ON
-			mycmakeargs+=(
-				-DLLVM_BUILD_DOCS=ON
-				-DLLVM_ENABLE_SPHINX=ON
-				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-				-DSPHINX_WARNINGS_AS_ERRORS=OFF
-			)
-			if use extra; then
-				mycmakeargs+=(
-					-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
-				)
-			fi
-		fi
-		mycmakeargs+=(
-			-DCLANG_INCLUDE_DOCS=${build_docs}
-
-			# Hack to install clang-tblgen: https://reviews.llvm.org/D141092
-			-DLLVM_BUILD_UTILS=ON
-		)
-	fi
-	if multilib_native_use extra; then
-		mycmakeargs+=(
-			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
-			-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
-		)
-	else
-		mycmakeargs+=(
-			-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
-		)
-	fi
-
-	if [[ -n ${EPREFIX} ]]; then
-		mycmakeargs+=(
-			-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
-		)
-	fi
-
-	if tc-is-cross-compiler; then
-		has_version -b sys-devel/clang:${LLVM_MAJOR} ||
-			die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
-		local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
-		mycmakeargs+=(
-			-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
-			-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
-		)
-	fi
-
-	# LLVM can have very high memory consumption while linking,
-	# exhausting the limit on 32-bit linker executable
-	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
-
-	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
-	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
-	cmake_src_configure
-
-	multilib_is_native_abi && check_distribution_components
-}
-
-multilib_src_compile() {
-	cmake_build distribution
-
-	# provide a symlink for tests
-	if [[ ! -L ${WORKDIR}/lib/clang ]]; then
-		mkdir -p "${WORKDIR}"/lib || die
-		ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
-	fi
-}
-
-multilib_src_test() {
-	# respect TMPDIR!
-	local -x LIT_PRESERVES_TMP=1
-	local test_targets=( check-clang )
-	if multilib_native_use extra; then
-		test_targets+=(
-			check-clang-tools
-			check-clangd
-		)
-	fi
-	cmake_build "${test_targets[@]}"
-}
-
-src_install() {
-	MULTILIB_WRAPPED_HEADERS=(
-		/usr/include/clang/Config/config.h
-	)
-
-	multilib-minimal_src_install
-
-	# Move runtime headers to /usr/lib/clang, where they belong
-	mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
-	# move (remaining) wrapped headers back
-	if use extra; then
-		mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
-	fi
-	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
-
-	# Apply CHOST and version suffix to clang tools
-	local clang_tools=( clang clang++ clang-cl clang-cpp )
-	local abi i
-
-	# cmake gives us:
-	# - clang-X
-	# - clang -> clang-X
-	# - clang++, clang-cl, clang-cpp -> clang
-	# we want to have:
-	# - clang-X
-	# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
-	# - clang, clang++, clang-cl, clang-cpp -> clang*-X
-	# also in CHOST variant
-	for i in "${clang_tools[@]:1}"; do
-		rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
-		dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
-		dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}"
-	done
-
-	# now create target symlinks for all supported ABIs
-	for abi in $(get_all_abis); do
-		local abi_chost=$(get_abi_CHOST "${abi}")
-		for i in "${clang_tools[@]}"; do
-			dosym "${i}-${LLVM_MAJOR}" \
-				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
-			dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
-				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
-		done
-	done
-}
-
-multilib_src_install() {
-	DESTDIR=${D} cmake_build install-distribution
-
-	# move headers to /usr/include for wrapping & ABI mismatch checks
-	# (also drop the version suffix from runtime headers)
-	rm -rf "${ED}"/usr/include || die
-	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
-	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
-	if multilib_native_use extra; then
-		# don't wrap clang-tidy headers, the list is too long
-		# (they're fine for non-native ABI but enabling the targets is problematic)
-		mv "${ED}"/usr/include/clang-tidy "${T}/" || die
-	fi
-}
-
-multilib_src_install_all() {
-	python_fix_shebang "${ED}"
-	if use static-analyzer; then
-		python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
-	fi
-
-	docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
-	llvm_install_manpages
-	# match 'html' non-compression
-	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
-	# +x for some reason; TODO: investigate
-	use static-analyzer && fperms a-x "/usr/lib/llvm/${LLVM_MAJOR}/share/man/man1/scan-build.1"
-}
-
-pkg_postinst() {
-	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
-		eselect compiler-shadow update all
-	fi
-
-	elog "You can find additional utility scripts in:"
-	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
-	if use extra; then
-		elog "Some of them are vim integration scripts (with instructions inside)."
-		elog "The run-clang-tidy.py script requires the following additional package:"
-		elog "  dev-python/pyyaml"
-	fi
-}
-
-pkg_postrm() {
-	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
-		eselect compiler-shadow clean all
-	fi
-}
diff --git a/sys-devel/clang/clang-16.0.0_pre20230127.ebuild b/sys-devel/clang/clang-16.0.0_pre20230127.ebuild
deleted file mode 100644
index b45257440e78..000000000000
--- a/sys-devel/clang/clang-16.0.0_pre20230127.ebuild
+++ /dev/null
@@ -1,472 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{9..11} )
-inherit cmake llvm llvm.org multilib multilib-minimal \
-	prefix python-single-r1 toolchain-funcs
-
-DESCRIPTION="C language family frontend for LLVM"
-HOMEPAGE="https://llvm.org/"
-
-# MSVCSetupApi.h: MIT
-# sorttable.js: MIT
-
-LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
-SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
-KEYWORDS=""
-IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
-REQUIRED_USE="${PYTHON_REQUIRED_USE}"
-RESTRICT="!test? ( test )"
-
-DEPEND="
-	~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
-	static-analyzer? ( dev-lang/perl:* )
-	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
-"
-
-RDEPEND="
-	${PYTHON_DEPS}
-	${DEPEND}
-	>=sys-devel/clang-common-${PV}
-"
-BDEPEND="
-	${PYTHON_DEPS}
-	>=dev-util/cmake-3.16
-	doc? ( $(python_gen_cond_dep '
-		dev-python/recommonmark[${PYTHON_USEDEP}]
-		dev-python/sphinx[${PYTHON_USEDEP}]
-	') )
-	xml? ( virtual/pkgconfig )
-"
-PDEPEND="
-	~sys-devel/clang-runtime-${PV}
-	sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
-"
-
-LLVM_COMPONENTS=(
-	clang clang-tools-extra cmake
-	llvm/lib/Transforms/Hello
-)
-LLVM_MANPAGES=1
-LLVM_TEST_COMPONENTS=(
-	llvm/lib/Testing
-	llvm/utils
-	third-party
-)
-LLVM_USE_TARGETS=llvm
-llvm.org_set_globals
-
-# Multilib notes:
-# 1. ABI_* flags control ABIs libclang* is built for only.
-# 2. clang is always capable of compiling code for all ABIs for enabled
-#    target. However, you will need appropriate crt* files (installed
-#    e.g. by sys-devel/gcc and sys-libs/glibc).
-# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
-#    in the current profile (i.e. alike supported by sys-devel/gcc).
-#
-# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
-# multilib clang* libraries (not runtime, not wrappers).
-
-pkg_setup() {
-	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
-	python-single-r1_pkg_setup
-}
-
-src_prepare() {
-	# create extra parent dir for relative CLANG_RESOURCE_DIR access
-	mkdir -p x/y || die
-	BUILD_DIR=${WORKDIR}/x/y/clang
-
-	llvm.org_src_prepare
-
-	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
-	eprefixify \
-		lib/Lex/InitHeaderSearch.cpp \
-		lib/Driver/ToolChains/Darwin.cpp || die
-
-	if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
-		sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
-	fi
-}
-
-check_distribution_components() {
-	if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
-		local all_targets=() my_targets=() l
-		cd "${BUILD_DIR}" || die
-
-		while read -r l; do
-			if [[ ${l} == install-*-stripped:* ]]; then
-				l=${l#install-}
-				l=${l%%-stripped*}
-
-				case ${l} in
-					# meta-targets
-					clang-libraries|distribution)
-						continue
-						;;
-					# tools
-					clang|clangd|clang-*)
-						;;
-					# static libraries
-					clang*|findAllSymbols)
-						continue
-						;;
-					# conditional to USE=doc
-					docs-clang-html|docs-clang-tools-html)
-						use doc || continue
-						;;
-				esac
-
-				all_targets+=( "${l}" )
-			fi
-		done < <(${NINJA} -t targets all)
-
-		while read -r l; do
-			my_targets+=( "${l}" )
-		done < <(get_distribution_components $"\n")
-
-		local add=() remove=()
-		for l in "${all_targets[@]}"; do
-			if ! has "${l}" "${my_targets[@]}"; then
-				add+=( "${l}" )
-			fi
-		done
-		for l in "${my_targets[@]}"; do
-			if ! has "${l}" "${all_targets[@]}"; then
-				remove+=( "${l}" )
-			fi
-		done
-
-		if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
-			eqawarn "get_distribution_components() is outdated!"
-			eqawarn "   Add: ${add[*]}"
-			eqawarn "Remove: ${remove[*]}"
-		fi
-		cd - >/dev/null || die
-	fi
-}
-
-get_distribution_components() {
-	local sep=${1-;}
-
-	local out=(
-		# common stuff
-		clang-cmake-exports
-		clang-headers
-		clang-resource-headers
-		libclang-headers
-
-		aarch64-resource-headers
-		arm-common-resource-headers
-		arm-resource-headers
-		core-resource-headers
-		cuda-resource-headers
-		hexagon-resource-headers
-		hip-resource-headers
-		hlsl-resource-headers
-		mips-resource-headers
-		opencl-resource-headers
-		openmp-resource-headers
-		ppc-htm-resource-headers
-		ppc-resource-headers
-		riscv-resource-headers
-		systemz-resource-headers
-		utility-resource-headers
-		ve-resource-headers
-		webassembly-resource-headers
-		windows-resource-headers
-		x86-resource-headers
-
-		# libs
-		clang-cpp
-		libclang
-	)
-
-	if multilib_is_native_abi; then
-		out+=(
-			# common stuff
-			bash-autocomplete
-			libclang-python-bindings
-
-			# tools
-			amdgpu-arch
-			c-index-test
-			clang
-			clang-format
-			clang-offload-bundler
-			clang-offload-packager
-			clang-refactor
-			clang-repl
-			clang-rename
-			clang-scan-deps
-			diagtool
-			hmaptool
-			nvptx-arch
-
-			# needed for cross-compiling Clang
-			clang-tblgen
-		)
-
-		if use extra; then
-			out+=(
-				# extra tools
-				clang-apply-replacements
-				clang-change-namespace
-				clang-doc
-				clang-include-cleaner
-				clang-include-fixer
-				clang-move
-				clang-pseudo
-				clang-query
-				clang-reorder-fields
-				clang-tidy
-				clang-tidy-headers
-				clangd
-				find-all-symbols
-				modularize
-				pp-trace
-			)
-		fi
-
-		if llvm_are_manpages_built; then
-			out+=( docs-clang-man )
-			use extra && out+=( docs-clang-tools-man )
-		fi
-
-		if use doc; then
-			out+=( docs-clang-html )
-			use extra && out+=( docs-clang-tools-html )
-		fi
-
-		use static-analyzer && out+=(
-			clang-check
-			clang-extdef-mapping
-			scan-build
-			scan-build-py
-			scan-view
-		)
-	fi
-
-	printf "%s${sep}" "${out[@]}"
-}
-
-multilib_src_configure() {
-	local mycmakeargs=(
-		-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
-		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
-		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
-		-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
-		# relative to bindir
-		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
-
-		-DBUILD_SHARED_LIBS=OFF
-		-DCLANG_LINK_CLANG_DYLIB=ON
-		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
-		-DCLANG_INCLUDE_TESTS=$(usex test)
-
-		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
-
-		-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
-		# libgomp support fails to find headers without explicit -I
-		# furthermore, it provides only syntax checking
-		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
-
-		# disable using CUDA to autodetect GPU, just build for all
-		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
-
-		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
-
-		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
-		-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
-
-		-DPython3_EXECUTABLE="${PYTHON}"
-	)
-
-	if ! use elibc_musl; then
-		mycmakeargs+=(
-			-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
-		)
-	fi
-
-	use test && mycmakeargs+=(
-		-DLLVM_BUILD_TESTS=ON
-		-DLLVM_LIT_ARGS="$(get_lit_flags)"
-	)
-
-	if multilib_is_native_abi; then
-		local build_docs=OFF
-		if llvm_are_manpages_built; then
-			build_docs=ON
-			mycmakeargs+=(
-				-DLLVM_BUILD_DOCS=ON
-				-DLLVM_ENABLE_SPHINX=ON
-				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-				-DSPHINX_WARNINGS_AS_ERRORS=OFF
-			)
-			if use extra; then
-				mycmakeargs+=(
-					-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
-				)
-			fi
-		fi
-		mycmakeargs+=(
-			-DCLANG_INCLUDE_DOCS=${build_docs}
-		)
-	fi
-	if multilib_native_use extra; then
-		mycmakeargs+=(
-			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
-			-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
-		)
-	else
-		mycmakeargs+=(
-			-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
-		)
-	fi
-
-	if [[ -n ${EPREFIX} ]]; then
-		mycmakeargs+=(
-			-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
-		)
-	fi
-
-	if tc-is-cross-compiler; then
-		has_version -b sys-devel/clang:${LLVM_MAJOR} ||
-			die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
-		local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
-		mycmakeargs+=(
-			-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
-			-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
-		)
-	fi
-
-	# LLVM can have very high memory consumption while linking,
-	# exhausting the limit on 32-bit linker executable
-	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
-
-	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
-	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
-	cmake_src_configure
-
-	multilib_is_native_abi && check_distribution_components
-}
-
-multilib_src_compile() {
-	cmake_build distribution
-
-	# provide a symlink for tests
-	if [[ ! -L ${WORKDIR}/lib/clang ]]; then
-		mkdir -p "${WORKDIR}"/lib || die
-		ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
-	fi
-}
-
-multilib_src_test() {
-	# respect TMPDIR!
-	local -x LIT_PRESERVES_TMP=1
-	local test_targets=( check-clang )
-	if multilib_native_use extra; then
-		test_targets+=(
-			check-clang-tools
-			check-clangd
-		)
-	fi
-	cmake_build "${test_targets[@]}"
-}
-
-src_install() {
-	MULTILIB_WRAPPED_HEADERS=(
-		/usr/include/clang/Config/config.h
-	)
-
-	multilib-minimal_src_install
-
-	# Move runtime headers to /usr/lib/clang, where they belong
-	mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
-	# move (remaining) wrapped headers back
-	if use extra; then
-		mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
-	fi
-	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
-
-	# Apply CHOST and version suffix to clang tools
-	local clang_tools=( clang clang++ clang-cl clang-cpp )
-	local abi i
-
-	# cmake gives us:
-	# - clang-X
-	# - clang -> clang-X
-	# - clang++, clang-cl, clang-cpp -> clang
-	# we want to have:
-	# - clang-X
-	# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
-	# - clang, clang++, clang-cl, clang-cpp -> clang*-X
-	# also in CHOST variant
-	for i in "${clang_tools[@]:1}"; do
-		rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
-		dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
-		dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}"
-	done
-
-	# now create target symlinks for all supported ABIs
-	for abi in $(get_all_abis); do
-		local abi_chost=$(get_abi_CHOST "${abi}")
-		for i in "${clang_tools[@]}"; do
-			dosym "${i}-${LLVM_MAJOR}" \
-				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
-			dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
-				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
-		done
-	done
-}
-
-multilib_src_install() {
-	DESTDIR=${D} cmake_build install-distribution
-
-	# move headers to /usr/include for wrapping & ABI mismatch checks
-	# (also drop the version suffix from runtime headers)
-	rm -rf "${ED}"/usr/include || die
-	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
-	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
-	if multilib_native_use extra; then
-		# don't wrap clang-tidy headers, the list is too long
-		# (they're fine for non-native ABI but enabling the targets is problematic)
-		mv "${ED}"/usr/include/clang-tidy "${T}/" || die
-	fi
-}
-
-multilib_src_install_all() {
-	python_fix_shebang "${ED}"
-	if use static-analyzer; then
-		python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
-	fi
-
-	docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
-	llvm_install_manpages
-	# match 'html' non-compression
-	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
-	# +x for some reason; TODO: investigate
-	use static-analyzer && fperms a-x "/usr/lib/llvm/${LLVM_MAJOR}/share/man/man1/scan-build.1"
-}
-
-pkg_postinst() {
-	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
-		eselect compiler-shadow update all
-	fi
-
-	elog "You can find additional utility scripts in:"
-	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
-	if use extra; then
-		elog "Some of them are vim integration scripts (with instructions inside)."
-		elog "The run-clang-tidy.py script requires the following additional package:"
-		elog "  dev-python/pyyaml"
-	fi
-}
-
-pkg_postrm() {
-	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
-		eselect compiler-shadow clean all
-	fi
-}
diff --git a/sys-devel/clang/clang-16.0.0_rc2.ebuild b/sys-devel/clang/clang-16.0.0_rc2.ebuild
new file mode 100644
index 000000000000..c89f4249a8ad
--- /dev/null
+++ b/sys-devel/clang/clang-16.0.0_rc2.ebuild
@@ -0,0 +1,472 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit cmake llvm llvm.org multilib multilib-minimal \
+	prefix python-single-r1 toolchain-funcs
+
+DESCRIPTION="C language family frontend for LLVM"
+HOMEPAGE="https://llvm.org/"
+
+# MSVCSetupApi.h: MIT
+# sorttable.js: MIT
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
+SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
+KEYWORDS="~loong"
+IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
+	static-analyzer? ( dev-lang/perl:* )
+	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	${DEPEND}
+	>=sys-devel/clang-common-${PV}
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	>=dev-util/cmake-3.16
+	doc? ( $(python_gen_cond_dep '
+		dev-python/recommonmark[${PYTHON_USEDEP}]
+		dev-python/sphinx[${PYTHON_USEDEP}]
+	') )
+	xml? ( virtual/pkgconfig )
+"
+PDEPEND="
+	~sys-devel/clang-runtime-${PV}
+	sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
+"
+
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
+LLVM_MANPAGES=1
+LLVM_TEST_COMPONENTS=(
+	llvm/lib/Testing
+	llvm/utils
+	third-party
+)
+LLVM_USE_TARGETS=llvm
+llvm.org_set_globals
+
+# Multilib notes:
+# 1. ABI_* flags control ABIs libclang* is built for only.
+# 2. clang is always capable of compiling code for all ABIs for enabled
+#    target. However, you will need appropriate crt* files (installed
+#    e.g. by sys-devel/gcc and sys-libs/glibc).
+# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
+#    in the current profile (i.e. alike supported by sys-devel/gcc).
+#
+# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
+# multilib clang* libraries (not runtime, not wrappers).
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	# create extra parent dir for relative CLANG_RESOURCE_DIR access
+	mkdir -p x/y || die
+	BUILD_DIR=${WORKDIR}/x/y/clang
+
+	llvm.org_src_prepare
+
+	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
+	eprefixify \
+		lib/Lex/InitHeaderSearch.cpp \
+		lib/Driver/ToolChains/Darwin.cpp || die
+
+	if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
+		sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
+	fi
+}
+
+check_distribution_components() {
+	if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
+		local all_targets=() my_targets=() l
+		cd "${BUILD_DIR}" || die
+
+		while read -r l; do
+			if [[ ${l} == install-*-stripped:* ]]; then
+				l=${l#install-}
+				l=${l%%-stripped*}
+
+				case ${l} in
+					# meta-targets
+					clang-libraries|distribution)
+						continue
+						;;
+					# tools
+					clang|clangd|clang-*)
+						;;
+					# static libraries
+					clang*|findAllSymbols)
+						continue
+						;;
+					# conditional to USE=doc
+					docs-clang-html|docs-clang-tools-html)
+						use doc || continue
+						;;
+				esac
+
+				all_targets+=( "${l}" )
+			fi
+		done < <(${NINJA} -t targets all)
+
+		while read -r l; do
+			my_targets+=( "${l}" )
+		done < <(get_distribution_components $"\n")
+
+		local add=() remove=()
+		for l in "${all_targets[@]}"; do
+			if ! has "${l}" "${my_targets[@]}"; then
+				add+=( "${l}" )
+			fi
+		done
+		for l in "${my_targets[@]}"; do
+			if ! has "${l}" "${all_targets[@]}"; then
+				remove+=( "${l}" )
+			fi
+		done
+
+		if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
+			eqawarn "get_distribution_components() is outdated!"
+			eqawarn "   Add: ${add[*]}"
+			eqawarn "Remove: ${remove[*]}"
+		fi
+		cd - >/dev/null || die
+	fi
+}
+
+get_distribution_components() {
+	local sep=${1-;}
+
+	local out=(
+		# common stuff
+		clang-cmake-exports
+		clang-headers
+		clang-resource-headers
+		libclang-headers
+
+		aarch64-resource-headers
+		arm-common-resource-headers
+		arm-resource-headers
+		core-resource-headers
+		cuda-resource-headers
+		hexagon-resource-headers
+		hip-resource-headers
+		hlsl-resource-headers
+		mips-resource-headers
+		opencl-resource-headers
+		openmp-resource-headers
+		ppc-htm-resource-headers
+		ppc-resource-headers
+		riscv-resource-headers
+		systemz-resource-headers
+		utility-resource-headers
+		ve-resource-headers
+		webassembly-resource-headers
+		windows-resource-headers
+		x86-resource-headers
+
+		# libs
+		clang-cpp
+		libclang
+	)
+
+	if multilib_is_native_abi; then
+		out+=(
+			# common stuff
+			bash-autocomplete
+			libclang-python-bindings
+
+			# tools
+			amdgpu-arch
+			c-index-test
+			clang
+			clang-format
+			clang-offload-bundler
+			clang-offload-packager
+			clang-refactor
+			clang-repl
+			clang-rename
+			clang-scan-deps
+			diagtool
+			hmaptool
+			nvptx-arch
+
+			# needed for cross-compiling Clang
+			clang-tblgen
+		)
+
+		if use extra; then
+			out+=(
+				# extra tools
+				clang-apply-replacements
+				clang-change-namespace
+				clang-doc
+				clang-include-cleaner
+				clang-include-fixer
+				clang-move
+				clang-pseudo
+				clang-query
+				clang-reorder-fields
+				clang-tidy
+				clang-tidy-headers
+				clangd
+				find-all-symbols
+				modularize
+				pp-trace
+			)
+		fi
+
+		if llvm_are_manpages_built; then
+			out+=( docs-clang-man )
+			use extra && out+=( docs-clang-tools-man )
+		fi
+
+		if use doc; then
+			out+=( docs-clang-html )
+			use extra && out+=( docs-clang-tools-html )
+		fi
+
+		use static-analyzer && out+=(
+			clang-check
+			clang-extdef-mapping
+			scan-build
+			scan-build-py
+			scan-view
+		)
+	fi
+
+	printf "%s${sep}" "${out[@]}"
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
+		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+		-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
+		# relative to bindir
+		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DCLANG_LINK_CLANG_DYLIB=ON
+		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
+		-DCLANG_INCLUDE_TESTS=$(usex test)
+
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+
+		-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
+		# libgomp support fails to find headers without explicit -I
+		# furthermore, it provides only syntax checking
+		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
+
+		# disable using CUDA to autodetect GPU, just build for all
+		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
+
+		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
+
+		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
+		-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if ! use elibc_musl; then
+		mycmakeargs+=(
+			-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
+		)
+	fi
+
+	use test && mycmakeargs+=(
+		-DLLVM_BUILD_TESTS=ON
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	if multilib_is_native_abi; then
+		local build_docs=OFF
+		if llvm_are_manpages_built; then
+			build_docs=ON
+			mycmakeargs+=(
+				-DLLVM_BUILD_DOCS=ON
+				-DLLVM_ENABLE_SPHINX=ON
+				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+				-DSPHINX_WARNINGS_AS_ERRORS=OFF
+			)
+			if use extra; then
+				mycmakeargs+=(
+					-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
+				)
+			fi
+		fi
+		mycmakeargs+=(
+			-DCLANG_INCLUDE_DOCS=${build_docs}
+		)
+	fi
+	if multilib_native_use extra; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
+			-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
+		)
+	else
+		mycmakeargs+=(
+			-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
+		)
+	fi
+
+	if [[ -n ${EPREFIX} ]]; then
+		mycmakeargs+=(
+			-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
+		)
+	fi
+
+	if tc-is-cross-compiler; then
+		has_version -b sys-devel/clang:${LLVM_MAJOR} ||
+			die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
+		local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
+		mycmakeargs+=(
+			-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
+			-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
+		)
+	fi
+
+	# LLVM can have very high memory consumption while linking,
+	# exhausting the limit on 32-bit linker executable
+	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake_src_configure
+
+	multilib_is_native_abi && check_distribution_components
+}
+
+multilib_src_compile() {
+	cmake_build distribution
+
+	# provide a symlink for tests
+	if [[ ! -L ${WORKDIR}/lib/clang ]]; then
+		mkdir -p "${WORKDIR}"/lib || die
+		ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	local test_targets=( check-clang )
+	if multilib_native_use extra; then
+		test_targets+=(
+			check-clang-tools
+			check-clangd
+		)
+	fi
+	cmake_build "${test_targets[@]}"
+}
+
+src_install() {
+	MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/clang/Config/config.h
+	)
+
+	multilib-minimal_src_install
+
+	# Move runtime headers to /usr/lib/clang, where they belong
+	mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
+	# move (remaining) wrapped headers back
+	if use extra; then
+		mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
+	fi
+	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
+
+	# Apply CHOST and version suffix to clang tools
+	local clang_tools=( clang clang++ clang-cl clang-cpp )
+	local abi i
+
+	# cmake gives us:
+	# - clang-X
+	# - clang -> clang-X
+	# - clang++, clang-cl, clang-cpp -> clang
+	# we want to have:
+	# - clang-X
+	# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
+	# - clang, clang++, clang-cl, clang-cpp -> clang*-X
+	# also in CHOST variant
+	for i in "${clang_tools[@]:1}"; do
+		rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
+		dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
+		dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}"
+	done
+
+	# now create target symlinks for all supported ABIs
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		for i in "${clang_tools[@]}"; do
+			dosym "${i}-${LLVM_MAJOR}" \
+				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
+			dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
+				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
+		done
+	done
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-distribution
+
+	# move headers to /usr/include for wrapping & ABI mismatch checks
+	# (also drop the version suffix from runtime headers)
+	rm -rf "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
+	if multilib_native_use extra; then
+		# don't wrap clang-tidy headers, the list is too long
+		# (they're fine for non-native ABI but enabling the targets is problematic)
+		mv "${ED}"/usr/include/clang-tidy "${T}/" || die
+	fi
+}
+
+multilib_src_install_all() {
+	python_fix_shebang "${ED}"
+	if use static-analyzer; then
+		python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
+	fi
+
+	docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+	llvm_install_manpages
+	# match 'html' non-compression
+	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
+	# +x for some reason; TODO: investigate
+	use static-analyzer && fperms a-x "/usr/lib/llvm/${LLVM_MAJOR}/share/man/man1/scan-build.1"
+}
+
+pkg_postinst() {
+	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow update all
+	fi
+
+	elog "You can find additional utility scripts in:"
+	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
+	if use extra; then
+		elog "Some of them are vim integration scripts (with instructions inside)."
+		elog "The run-clang-tidy.py script requires the following additional package:"
+		elog "  dev-python/pyyaml"
+	fi
+}
+
+pkg_postrm() {
+	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow clean all
+	fi
+}
diff --git a/sys-devel/clang/clang-17.0.0_pre20230211.ebuild b/sys-devel/clang/clang-17.0.0_pre20230211.ebuild
new file mode 100644
index 000000000000..b45257440e78
--- /dev/null
+++ b/sys-devel/clang/clang-17.0.0_pre20230211.ebuild
@@ -0,0 +1,472 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit cmake llvm llvm.org multilib multilib-minimal \
+	prefix python-single-r1 toolchain-funcs
+
+DESCRIPTION="C language family frontend for LLVM"
+HOMEPAGE="https://llvm.org/"
+
+# MSVCSetupApi.h: MIT
+# sorttable.js: MIT
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
+SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
+KEYWORDS=""
+IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
+	static-analyzer? ( dev-lang/perl:* )
+	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+"
+
+RDEPEND="
+	${PYTHON_DEPS}
+	${DEPEND}
+	>=sys-devel/clang-common-${PV}
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	>=dev-util/cmake-3.16
+	doc? ( $(python_gen_cond_dep '
+		dev-python/recommonmark[${PYTHON_USEDEP}]
+		dev-python/sphinx[${PYTHON_USEDEP}]
+	') )
+	xml? ( virtual/pkgconfig )
+"
+PDEPEND="
+	~sys-devel/clang-runtime-${PV}
+	sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
+"
+
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
+LLVM_MANPAGES=1
+LLVM_TEST_COMPONENTS=(
+	llvm/lib/Testing
+	llvm/utils
+	third-party
+)
+LLVM_USE_TARGETS=llvm
+llvm.org_set_globals
+
+# Multilib notes:
+# 1. ABI_* flags control ABIs libclang* is built for only.
+# 2. clang is always capable of compiling code for all ABIs for enabled
+#    target. However, you will need appropriate crt* files (installed
+#    e.g. by sys-devel/gcc and sys-libs/glibc).
+# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
+#    in the current profile (i.e. alike supported by sys-devel/gcc).
+#
+# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
+# multilib clang* libraries (not runtime, not wrappers).
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	# create extra parent dir for relative CLANG_RESOURCE_DIR access
+	mkdir -p x/y || die
+	BUILD_DIR=${WORKDIR}/x/y/clang
+
+	llvm.org_src_prepare
+
+	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
+	eprefixify \
+		lib/Lex/InitHeaderSearch.cpp \
+		lib/Driver/ToolChains/Darwin.cpp || die
+
+	if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
+		sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
+	fi
+}
+
+check_distribution_components() {
+	if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
+		local all_targets=() my_targets=() l
+		cd "${BUILD_DIR}" || die
+
+		while read -r l; do
+			if [[ ${l} == install-*-stripped:* ]]; then
+				l=${l#install-}
+				l=${l%%-stripped*}
+
+				case ${l} in
+					# meta-targets
+					clang-libraries|distribution)
+						continue
+						;;
+					# tools
+					clang|clangd|clang-*)
+						;;
+					# static libraries
+					clang*|findAllSymbols)
+						continue
+						;;
+					# conditional to USE=doc
+					docs-clang-html|docs-clang-tools-html)
+						use doc || continue
+						;;
+				esac
+
+				all_targets+=( "${l}" )
+			fi
+		done < <(${NINJA} -t targets all)
+
+		while read -r l; do
+			my_targets+=( "${l}" )
+		done < <(get_distribution_components $"\n")
+
+		local add=() remove=()
+		for l in "${all_targets[@]}"; do
+			if ! has "${l}" "${my_targets[@]}"; then
+				add+=( "${l}" )
+			fi
+		done
+		for l in "${my_targets[@]}"; do
+			if ! has "${l}" "${all_targets[@]}"; then
+				remove+=( "${l}" )
+			fi
+		done
+
+		if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
+			eqawarn "get_distribution_components() is outdated!"
+			eqawarn "   Add: ${add[*]}"
+			eqawarn "Remove: ${remove[*]}"
+		fi
+		cd - >/dev/null || die
+	fi
+}
+
+get_distribution_components() {
+	local sep=${1-;}
+
+	local out=(
+		# common stuff
+		clang-cmake-exports
+		clang-headers
+		clang-resource-headers
+		libclang-headers
+
+		aarch64-resource-headers
+		arm-common-resource-headers
+		arm-resource-headers
+		core-resource-headers
+		cuda-resource-headers
+		hexagon-resource-headers
+		hip-resource-headers
+		hlsl-resource-headers
+		mips-resource-headers
+		opencl-resource-headers
+		openmp-resource-headers
+		ppc-htm-resource-headers
+		ppc-resource-headers
+		riscv-resource-headers
+		systemz-resource-headers
+		utility-resource-headers
+		ve-resource-headers
+		webassembly-resource-headers
+		windows-resource-headers
+		x86-resource-headers
+
+		# libs
+		clang-cpp
+		libclang
+	)
+
+	if multilib_is_native_abi; then
+		out+=(
+			# common stuff
+			bash-autocomplete
+			libclang-python-bindings
+
+			# tools
+			amdgpu-arch
+			c-index-test
+			clang
+			clang-format
+			clang-offload-bundler
+			clang-offload-packager
+			clang-refactor
+			clang-repl
+			clang-rename
+			clang-scan-deps
+			diagtool
+			hmaptool
+			nvptx-arch
+
+			# needed for cross-compiling Clang
+			clang-tblgen
+		)
+
+		if use extra; then
+			out+=(
+				# extra tools
+				clang-apply-replacements
+				clang-change-namespace
+				clang-doc
+				clang-include-cleaner
+				clang-include-fixer
+				clang-move
+				clang-pseudo
+				clang-query
+				clang-reorder-fields
+				clang-tidy
+				clang-tidy-headers
+				clangd
+				find-all-symbols
+				modularize
+				pp-trace
+			)
+		fi
+
+		if llvm_are_manpages_built; then
+			out+=( docs-clang-man )
+			use extra && out+=( docs-clang-tools-man )
+		fi
+
+		if use doc; then
+			out+=( docs-clang-html )
+			use extra && out+=( docs-clang-tools-html )
+		fi
+
+		use static-analyzer && out+=(
+			clang-check
+			clang-extdef-mapping
+			scan-build
+			scan-build-py
+			scan-view
+		)
+	fi
+
+	printf "%s${sep}" "${out[@]}"
+}
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
+		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+		-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
+		# relative to bindir
+		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DCLANG_LINK_CLANG_DYLIB=ON
+		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
+		-DCLANG_INCLUDE_TESTS=$(usex test)
+
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+
+		-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
+		# libgomp support fails to find headers without explicit -I
+		# furthermore, it provides only syntax checking
+		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
+
+		# disable using CUDA to autodetect GPU, just build for all
+		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
+
+		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
+
+		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
+		-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if ! use elibc_musl; then
+		mycmakeargs+=(
+			-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
+		)
+	fi
+
+	use test && mycmakeargs+=(
+		-DLLVM_BUILD_TESTS=ON
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	if multilib_is_native_abi; then
+		local build_docs=OFF
+		if llvm_are_manpages_built; then
+			build_docs=ON
+			mycmakeargs+=(
+				-DLLVM_BUILD_DOCS=ON
+				-DLLVM_ENABLE_SPHINX=ON
+				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+				-DSPHINX_WARNINGS_AS_ERRORS=OFF
+			)
+			if use extra; then
+				mycmakeargs+=(
+					-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
+				)
+			fi
+		fi
+		mycmakeargs+=(
+			-DCLANG_INCLUDE_DOCS=${build_docs}
+		)
+	fi
+	if multilib_native_use extra; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
+			-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
+		)
+	else
+		mycmakeargs+=(
+			-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
+		)
+	fi
+
+	if [[ -n ${EPREFIX} ]]; then
+		mycmakeargs+=(
+			-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
+		)
+	fi
+
+	if tc-is-cross-compiler; then
+		has_version -b sys-devel/clang:${LLVM_MAJOR} ||
+			die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
+		local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
+		mycmakeargs+=(
+			-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
+			-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
+		)
+	fi
+
+	# LLVM can have very high memory consumption while linking,
+	# exhausting the limit on 32-bit linker executable
+	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake_src_configure
+
+	multilib_is_native_abi && check_distribution_components
+}
+
+multilib_src_compile() {
+	cmake_build distribution
+
+	# provide a symlink for tests
+	if [[ ! -L ${WORKDIR}/lib/clang ]]; then
+		mkdir -p "${WORKDIR}"/lib || die
+		ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	local test_targets=( check-clang )
+	if multilib_native_use extra; then
+		test_targets+=(
+			check-clang-tools
+			check-clangd
+		)
+	fi
+	cmake_build "${test_targets[@]}"
+}
+
+src_install() {
+	MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/clang/Config/config.h
+	)
+
+	multilib-minimal_src_install
+
+	# Move runtime headers to /usr/lib/clang, where they belong
+	mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
+	# move (remaining) wrapped headers back
+	if use extra; then
+		mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
+	fi
+	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
+
+	# Apply CHOST and version suffix to clang tools
+	local clang_tools=( clang clang++ clang-cl clang-cpp )
+	local abi i
+
+	# cmake gives us:
+	# - clang-X
+	# - clang -> clang-X
+	# - clang++, clang-cl, clang-cpp -> clang
+	# we want to have:
+	# - clang-X
+	# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
+	# - clang, clang++, clang-cl, clang-cpp -> clang*-X
+	# also in CHOST variant
+	for i in "${clang_tools[@]:1}"; do
+		rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
+		dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
+		dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}"
+	done
+
+	# now create target symlinks for all supported ABIs
+	for abi in $(get_all_abis); do
+		local abi_chost=$(get_abi_CHOST "${abi}")
+		for i in "${clang_tools[@]}"; do
+			dosym "${i}-${LLVM_MAJOR}" \
+				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
+			dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
+				"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
+		done
+	done
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-distribution
+
+	# move headers to /usr/include for wrapping & ABI mismatch checks
+	# (also drop the version suffix from runtime headers)
+	rm -rf "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
+	if multilib_native_use extra; then
+		# don't wrap clang-tidy headers, the list is too long
+		# (they're fine for non-native ABI but enabling the targets is problematic)
+		mv "${ED}"/usr/include/clang-tidy "${T}/" || die
+	fi
+}
+
+multilib_src_install_all() {
+	python_fix_shebang "${ED}"
+	if use static-analyzer; then
+		python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
+	fi
+
+	docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+	llvm_install_manpages
+	# match 'html' non-compression
+	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
+	# +x for some reason; TODO: investigate
+	use static-analyzer && fperms a-x "/usr/lib/llvm/${LLVM_MAJOR}/share/man/man1/scan-build.1"
+}
+
+pkg_postinst() {
+	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow update all
+	fi
+
+	elog "You can find additional utility scripts in:"
+	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
+	if use extra; then
+		elog "Some of them are vim integration scripts (with instructions inside)."
+		elog "The run-clang-tidy.py script requires the following additional package:"
+		elog "  dev-python/pyyaml"
+	fi
+}
+
+pkg_postrm() {
+	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow clean all
+	fi
+}
-- 
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