gentoo auto-resync : 11:10:2022 - 01:37:00

5 files changed, 572 insertions, 73 deletions

diff --git a/sys-devel/clang/Manifest b/sys-devel/clang/Manifest
index c1bbcc065d3e..947647f39954 100644
--- a/sys-devel/clang/Manifest
+++ b/sys-devel/clang/Manifest
@@ -11,11 +11,13 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-15.0.2.src.tar.xz 112071864 BLAKE2B 96f2884d6c1007260d71e5dd41951eed029e8f50ff78f3c90f7194df13e1d4fb80ab7705c51c45a3e6b2a7714a98d9c5919fc7064d1d5f7c675e65b9b4229b65 SHA512 a0e815369c15bb4f8e8aa0fede29c3d557fcc5c8f2b39d457c03f1ef1d860082a41027238571b2aee9a158a87eb118deb08dc2ba94ce750320837a84e9908b8c
 DIST llvm-project-15.0.2.src.tar.xz.sig 438 BLAKE2B 37a3a7fbc2d74db9060e85f04e159b475cf818c95a6fe2e9f5f038eb990f414d94833ecac2f9c826825a69b752876399e37e70e6934def06363f7ccb18be033a SHA512 cfe3bc400a64536ad9181c2ede7227a0953a8632fdc777d1ea1d9225c1fc4e699d90ce0b99e057ee5b87c1272d5810c4b52fb0cac167ddd2aad88f1f3ef46ee8
 DIST llvm-project-5a0722e0469894564dd9b0ee1d4f8c291d09c776.tar.gz 169164627 BLAKE2B c9a8672cac0faa747baa366545d21f91b50e7611e062eb95042cbccc2dc00b74f44c5c2fcccda49b44975320dfadca5916585766235a406dfbd7321afba03025 SHA512 bad4043fab0e4f9c633bc0aa74df1f1ea886f1d20c1c7a2704bd8317371cf6325e70a770623307d7a455e815cce8c5f00be1ed4ec3f06a7b69038a2784f73243
+DIST llvm-project-ebb258d3b0785f6dcc65e1f277d0690891ddc94d.tar.gz 168823463 BLAKE2B 111afe0f6ba6cef28c3d0162c9c650d15239f981949030768780ebe308418346d0ad367e0e58417832ae43e57b27bccaf56415f81e8221c6c5e78d1113f5617b SHA512 80351d7eeac77a15bf5613b289c71d718ecaccd8a6a4ea6736ed8bfc15c8154099c771564f99ea6c8b491f99bf1ca3a45fac977d638f6a03d7f7b42ba522fa20
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD clang-13.0.1.ebuild 11294 BLAKE2B 33760cbd488068389efed5c011b15288021d1f93a371d5114301a5f86e815b3a1e9ae21ed6304d90916778f2312db17339d85b6d76e5e8255614706ddc3a7cf6 SHA512 b49773a02c15c4e869682664bd5703d7e08f60be9558fdbd78da19be5d5a1158093729260106cffe4cd8a6295ba740e42cc43d07da00ed8ead14dc45899ce80a
 EBUILD clang-14.0.6-r1.ebuild 11719 BLAKE2B 743e26b68f15e8b4aa7acfe4f7abd095fe42a3ba6dafdff278d0bfe06f57679490e0940a1029f97d5cc3f6d4ac8b44ea63283bbad1052623ee0048fdbbeb54e0 SHA512 ec6da9dcbed9f078307e8265362a5b39dac9d97d8aadbba16395ee7ddb442d34d1d2a1e9e880da41dbdb51fcf3c741c33ac469e5f6ffa4d091adb4d1743fa12b
 EBUILD clang-15.0.2.ebuild 11810 BLAKE2B 0e7f4c3e3eb9d3f238afd87100fb8bae7c4a0bf9a4fac97b6bb95822e88adf83e608e2f2fe5fcfb6b67471e4e7357ac265f33707516d7b6f054ad37b0c1940f8 SHA512 b68c91b5c0e2af3e2edfe37bf2ec56f7a054255ffc414b8e019abc9746c4519ad7bbf489a3d3e22864afe5215e069a2f8955ca2d519df2cd977a570aba7a6a36
-EBUILD clang-15.0.3.9999.ebuild 11503 BLAKE2B 58219802a09130e892b4273edd049621b6b18ab85b5eff249f4ef5296b3cc76de0efb862e987c1608bac5af2e1df61e45649bafcb0d4806bfb4266634ea57d50 SHA512 273cee814fec10fdeaa9988491500ebcb4a47840c3d2b32948445355b52508bb011e0da814a25a341547fa5a59fd0d46f1cc2b6fd932bd9d775e1224b8f0b083
-EBUILD clang-16.0.0.9999.ebuild 11474 BLAKE2B afa0b20ad7000c58b0bbb61cd1ce6fc135a46f9c72da44975990c37241fb155179fe1fbaeb0c5acc6b33ba01e64e0f43231c16af6762340284c55680e67810dd SHA512 960eb87d1d9dcab0ac983ba3d82d56249006af95a17fbdcb9ff8962074033c51c5a272a38940352104aa3db82b3c8da2520f665e78b55758a9e1715a40c94969
+EBUILD clang-15.0.3.9999.ebuild 11838 BLAKE2B 116a5c50e5f2c857503965a86461e77582dca7494523b15245ad8487bf12591aa5c5541697cfdee633711e08a4a043519277d51d8db6473257377d88229eff4c SHA512 71201c0bd1ab124adb908ce61e6862a2cf5a52b5132ad71f25782ff0463c9834b282c207768621ec3e321fbf0f9be88e1af4d654124a2b7ced5052bd1a31c9f7
+EBUILD clang-16.0.0.9999.ebuild 11809 BLAKE2B d39b4c36403a0c9c3efcc15efd0b55f16c31ed469d9b840ea75e5c98cdbad2647b130adee13b37b7db7220c9cdb4bbd444d940a64475ef5729f18f62d5823ccf SHA512 bb329d47ecae1eae9f7d745e4ebbd16a56f905bd6bab4a82242bb56a6ca8465a7230df29c6836a6b9346824a561407fdc0ef8e60e270c0b643ba6887f9fcbf17
 EBUILD clang-16.0.0_pre20221006.ebuild 11474 BLAKE2B afa0b20ad7000c58b0bbb61cd1ce6fc135a46f9c72da44975990c37241fb155179fe1fbaeb0c5acc6b33ba01e64e0f43231c16af6762340284c55680e67810dd SHA512 960eb87d1d9dcab0ac983ba3d82d56249006af95a17fbdcb9ff8962074033c51c5a272a38940352104aa3db82b3c8da2520f665e78b55758a9e1715a40c94969
-MISC metadata.xml 1419 BLAKE2B 67e54312c45894825e644eec3b17f9d788a31beb8d8acf9fd5dfb604a02e35f01a0825d71547716e78b8aad9d4f7ca4d7f6a9085afc3235e3e4ed16dd46d526e SHA512 04981d6d909c239a8183cff0cd87418d88a1b3bb4c3848a88cb82164d0c5e234ab766d9a3339293502543c3ce92f7ab4fa9c3202fb45833429511e0f9d9ad584
+EBUILD clang-16.0.0_pre20221010.ebuild 11809 BLAKE2B d39b4c36403a0c9c3efcc15efd0b55f16c31ed469d9b840ea75e5c98cdbad2647b130adee13b37b7db7220c9cdb4bbd444d940a64475ef5729f18f62d5823ccf SHA512 bb329d47ecae1eae9f7d745e4ebbd16a56f905bd6bab4a82242bb56a6ca8465a7230df29c6836a6b9346824a561407fdc0ef8e60e270c0b643ba6887f9fcbf17
+MISC metadata.xml 1501 BLAKE2B 961072eb205cc00521eaffed8068733579b0c688454fa55034cbf9c271065653374d2a6c5db403e3930907ebd84a02e4c46a24dd3835406fbdafdb8ecfb9a20e SHA512 d7708ee293d78af52ad61a5a5e51a2a8047092dd837805f27622b2d4915aec65e10fdcf9ae744ab535af5b50b4483ba1ef84d1cc8701545f7c7f0500bbe15260
diff --git a/sys-devel/clang/clang-15.0.3.9999.ebuild b/sys-devel/clang/clang-15.0.3.9999.ebuild
index 2c2ced462113..782f91b3a807 100644
--- a/sys-devel/clang/clang-15.0.3.9999.ebuild
+++ b/sys-devel/clang/clang-15.0.3.9999.ebuild
@@ -16,7 +16,7 @@ HOMEPAGE="https://llvm.org/"
 LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
 KEYWORDS=""
-IUSE="debug doc +pie +static-analyzer test xml"
+IUSE="debug doc +extra +pie +static-analyzer test xml"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 RESTRICT="!test? ( test )"
 
@@ -194,42 +194,43 @@ get_distribution_components() {
 			clang-offload-bundler
 			clang-offload-packager
 			clang-offload-wrapper
-			clang-pseudo
 			clang-refactor
 			clang-repl
 			clang-rename
 			clang-scan-deps
 			diagtool
 			hmaptool
-
-			# extra tools
-			clang-apply-replacements
-			clang-change-namespace
-			clang-doc
-			clang-include-fixer
-			clang-move
-			clang-query
-			clang-reorder-fields
-			clang-tidy
-			clang-tidy-headers
-			clangd
-			find-all-symbols
-			modularize
-			pp-trace
 		)
 
-		if llvm_are_manpages_built; then
+		if use extra; then
 			out+=(
-				# manpages
-				docs-clang-man
-				docs-clang-tools-man
+				# extra tools
+				clang-apply-replacements
+				clang-change-namespace
+				clang-doc
+				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
 
-		use doc && out+=(
-			docs-clang-html
-			docs-clang-tools-html
-		)
+		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
@@ -292,13 +293,21 @@ multilib_src_configure() {
 				-DLLVM_BUILD_DOCS=ON
 				-DLLVM_ENABLE_SPHINX=ON
 				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-				-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
 				-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+=(
-			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
 			-DCLANG_INCLUDE_DOCS=${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
@@ -346,9 +355,14 @@ multilib_src_compile() {
 multilib_src_test() {
 	# respect TMPDIR!
 	local -x LIT_PRESERVES_TMP=1
-	cmake_build check-clang
-	multilib_is_native_abi &&
-		cmake_build check-clang-tools check-clangd
+	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() {
@@ -361,7 +375,9 @@ 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
-	mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
+	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
@@ -403,7 +419,7 @@ multilib_src_install() {
 	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_is_native_abi; then
+	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
@@ -431,9 +447,11 @@ pkg_postinst() {
 
 	elog "You can find additional utility scripts in:"
 	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
-	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"
+	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() {
diff --git a/sys-devel/clang/clang-16.0.0.9999.ebuild b/sys-devel/clang/clang-16.0.0.9999.ebuild
index b7c83aeab989..1c5cd8a186b1 100644
--- a/sys-devel/clang/clang-16.0.0.9999.ebuild
+++ b/sys-devel/clang/clang-16.0.0.9999.ebuild
@@ -16,7 +16,7 @@ HOMEPAGE="https://llvm.org/"
 LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
 KEYWORDS=""
-IUSE="debug doc +pie +static-analyzer test xml"
+IUSE="debug doc +extra +pie +static-analyzer test xml"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 RESTRICT="!test? ( test )"
 
@@ -193,42 +193,43 @@ get_distribution_components() {
 			clang-format
 			clang-offload-bundler
 			clang-offload-packager
-			clang-pseudo
 			clang-refactor
 			clang-repl
 			clang-rename
 			clang-scan-deps
 			diagtool
 			hmaptool
-
-			# extra tools
-			clang-apply-replacements
-			clang-change-namespace
-			clang-doc
-			clang-include-fixer
-			clang-move
-			clang-query
-			clang-reorder-fields
-			clang-tidy
-			clang-tidy-headers
-			clangd
-			find-all-symbols
-			modularize
-			pp-trace
 		)
 
-		if llvm_are_manpages_built; then
+		if use extra; then
 			out+=(
-				# manpages
-				docs-clang-man
-				docs-clang-tools-man
+				# extra tools
+				clang-apply-replacements
+				clang-change-namespace
+				clang-doc
+				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
 
-		use doc && out+=(
-			docs-clang-html
-			docs-clang-tools-html
-		)
+		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
@@ -291,13 +292,21 @@ multilib_src_configure() {
 				-DLLVM_BUILD_DOCS=ON
 				-DLLVM_ENABLE_SPHINX=ON
 				-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-				-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
 				-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+=(
-			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
 			-DCLANG_INCLUDE_DOCS=${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
@@ -345,9 +354,14 @@ multilib_src_compile() {
 multilib_src_test() {
 	# respect TMPDIR!
 	local -x LIT_PRESERVES_TMP=1
-	cmake_build check-clang
-	multilib_is_native_abi &&
-		cmake_build check-clang-tools check-clangd
+	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() {
@@ -360,7 +374,9 @@ 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
-	mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
+	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
@@ -402,7 +418,7 @@ multilib_src_install() {
 	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_is_native_abi; then
+	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
@@ -430,9 +446,11 @@ pkg_postinst() {
 
 	elog "You can find additional utility scripts in:"
 	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
-	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"
+	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() {
diff --git a/sys-devel/clang/clang-16.0.0_pre20221010.ebuild b/sys-devel/clang/clang-16.0.0_pre20221010.ebuild
new file mode 100644
index 000000000000..1c5cd8a186b1
--- /dev/null
+++ b/sys-devel/clang/clang-16.0.0_pre20221010.ebuild
@@ -0,0 +1,460 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..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 +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[${PYTHON_USEDEP}]
+	') )
+	xml? ( virtual/pkgconfig )
+"
+PDEPEND="
+	sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
+	~sys-devel/clang-runtime-${PV}
+"
+
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
+LLVM_MANPAGES=1
+LLVM_TEST_COMPONENTS=(
+	llvm/lib/Testing/Support
+	llvm/utils/{lit,llvm-lit,unittest}
+	llvm/utils/{UpdateTestChecks,update_cc_test_checks.py}
+)
+LLVM_PATCHSET=9999-r4
+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
+}
+
+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
+		)
+
+		if use extra; then
+			out+=(
+				# extra tools
+				clang-apply-replacements
+				clang-change-namespace
+				clang-doc
+				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=(
+		-DLLVM_CMAKE_PATH="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/cmake/llvm"
+		-DCMAKE_INSTALL_PREFIX="${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/${LLVM_VERSION}"
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DCLANG_LINK_CLANG_DYLIB=ON
+		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
+
+		-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+		-DLLVM_BUILD_TESTS=$(usex test)
+
+		# these are not propagated reliably, so redefine them
+		-DLLVM_ENABLE_EH=ON
+		-DLLVM_ENABLE_RTTI=ON
+
+		-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="${PYTHON}"
+	)
+	use test && mycmakeargs+=(
+		-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+		-DLLVM_EXTERNAL_LIT="${BUILD_DIR}/bin/llvm-lit"
+		-DLLVM_LIT_ARGS="$(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
+		[[ -x "/usr/bin/clang-tblgen" ]] \
+			|| die "/usr/bin/clang-tblgen not found or usable"
+		mycmakeargs+=(
+			-DCMAKE_CROSSCOMPILING=ON
+			-DCLANG_TABLEGEN=/usr/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/metadata.xml b/sys-devel/clang/metadata.xml
index 9eff0810e614..565650790b47 100644
--- a/sys-devel/clang/metadata.xml
+++ b/sys-devel/clang/metadata.xml
@@ -30,6 +30,7 @@ Conformance with C/C++/ObjC and their variants</longdescription>
 		<flag name="default-compiler-rt">Use compiler-rt instead of libgcc as the default rtlib for clang</flag>
 		<flag name="default-libcxx">Use libc++ instead of libstdc++ as the default stdlib for clang</flag>
 		<flag name="default-lld">Use lld as the default linker for clang</flag>
+		<flag name="extra">Build extra tools (clangd, clang-tidy and a few more)</flag>
 		<flag name="static-analyzer">Install the Clang static analyzer</flag>
 	</use>
 	<upstream>