gentoo resync : 20.03.2022

5 files changed, 455 insertions, 16 deletions

diff --git a/sys-devel/clang/Manifest b/sys-devel/clang/Manifest
index 7e23bdd51d91..d39c5ed2aab0 100644
--- a/sys-devel/clang/Manifest
+++ b/sys-devel/clang/Manifest
@@ -1,19 +1,22 @@
 DIST llvm-11.1.0-manpages.tar.bz2 191571 BLAKE2B d6f8e1390dd3e6e8bbcd66c0079ef89f2ff3479743499c36ab32f8bc8281631a96113df9a87f6284058365950f4df3c75dacfcc11920fc5ea7ef0233ba842b77 SHA512 2543e519f51cc7ecb51a732c658ec5d35c5225e30a677f24ead75e81fb1ab793a030e79f21d0b702a2cf6ab6da1a2cba839b49a98e1b0a36384e98076ed5c4b1
 DIST llvm-12.0.1-manpages.tar.bz2 191582 BLAKE2B a049cd305c257875d47e92d703c51aee8225854f999eddbd530c7a978704a981b05bc0819ba31a2f2a218d3569b078f0deb01b0eeb385966253b54a0fdc090d1 SHA512 9931a57f843709aed59193524fe980af695e4e23c8f53ec3cff308677ba4fc520ca58032b50b68440c7762305855317d9a705fe5ccbb543fb104f4deb5d10ea5
 DIST llvm-13.0.0-manpages.tar.bz2 202595 BLAKE2B 1a3a389e8c544675f7ba2692f92bb82a83beabd6c595211806ef7f473e1741ea633a773edf623011d3d011ef2ee7a1611fc9620fe921eeebe1b99c3b8b3a0652 SHA512 344139f3123169776e0fd603e605bbf537d15d80ff56ad60e66ed1639a9dec53a8ac5cd088c8e14c8b7a799b563268445562293ba1d4efeb8db438cbd9cb5fb0
+DIST llvm-13.0.1-manpages.tar.bz2 202187 BLAKE2B 32a761426dbe4c3c355d30660254305cd88b6d513faee04c78e370cea9d38761108a9be4c4b4ac39b6a74400af1f9d37ffd11ab05acd7340175c8d66845ae7d9 SHA512 9495e1daf588540fdb8b9ee905a9b6be4693bd70b7f42c8e8a0d667242fc24dc853c45918d3bc09d02f0761ad61541bc9749c1498e312da129abdab638a0d572
 DIST llvm-gentoo-patchset-11.1.0-1.tar.xz 4032 BLAKE2B e69138a422e315b31a3d9c11faa4ae1ddf1bf9092cee2db0de4d2adef81fd802973488293aab48b764402b51996893b17ca03249ef4620848a576d1f6cdb9698 SHA512 e1c5504dab6c5db9fdf4addfeb12316f22d0258717ba551a9b7b3ba37919491fb6011ac5cca1e793b7509d5c1c186bc6bc4213f7d6155d190612492b216f979b
 DIST llvm-gentoo-patchset-12.0.1.tar.xz 5280 BLAKE2B 963d005bc7b636570be90eb841ac5bcaeb927538cc7de27683167111a17d6496677c7517de2ecfaf14b5d8ac22bad357be490b8a2ed9aba502fd5f447ecc99e9 SHA512 fc7c38e671555751650299c3a8bee44d5c7f26e11b68d5538c507fb7fe9ff2d349bdcd43bce90a448a747f082d523b3849d6bcda5e3ae2e998edcb926d6aa249
 DIST llvm-gentoo-patchset-13.0.0.tar.xz 5012 BLAKE2B 6760c78c086aaf6629143fd920b0a2c68cad9278628fbea8164dfeb59db95984a5b5d6b3505b510c697e8c95bf8d2be782c6b73c01622d52f2da9b07ecff39e0 SHA512 7764d49343b795b6bebae64f646ba27e3e6cc2a20b8a1aee645ce0d8474633c34acfbb73c08546fee415755dd4ea5a98c1d84db5e394cf5f4fc802eb61148ab6
-DIST llvm-gentoo-patchset-13.0.1-rc3.tar.xz 4808 BLAKE2B d8ed3ae424914437413e2e8c029880072e93d79ca79b842ad59451df46594c9b0d73ee5d49d3b65c4c7a40c86b2e0d43501ef106aea7c481f22425a5245a3411 SHA512 10430a720b120a340a681fa435a7f050741c75270607e3f5214bf829313d274c11f019f1ac072857dc5d7f868e6eb013932d1c94446e8cb2e151ac818a081914
-DIST llvm-gentoo-patchset-9999-2.tar.xz 4064 BLAKE2B 4b29234f10ea4ab2609e83c71bcd5f968cd93abd275c13366146ca899bbc576d55a3364432cc7db353739f5da5762529436689b848857e839e230425d551265b SHA512 c0d40a81bd11dc6018d7b3789e4ca7e1cd784992d44fab8d750b8b5281db39ad9092d320d125cae93164d2dddc42177a173b6d5e4158e4b62d7507db877acb9e
+DIST llvm-gentoo-patchset-13.0.1.tar.xz 6288 BLAKE2B 899222b962486e924e4f8a2b574d285531a3f87af9385ff68c81db92aa224a0cde6d4ee049b5405056bedb4b232b50e1d5840024071a4a215f6311853304c92d SHA512 b2805337f1deca626768a44c5e7ac9ed16e0c31bead1647d44a493a8123c1b8e8f1c8ceee3536bcc6fa87fdd3fcec408229f701adf30eff07e7ef9889b847b01
+DIST llvm-gentoo-patchset-9999-r3.tar.xz 4076 BLAKE2B 30bdf740606a1718ae45d850803385d425b656fbbe0250f587cad54f55272e3617d5ee0d04f534a58f87408b0a2dea322ebf1bb8cd653a2beba21d0bc5778c62 SHA512 2c7080ffd09d7dcf4c72a97044a5c63ab895250721d60270bc51c2095aef5f9039781892b4c0d14e942611686153f874a1f52a1c854bb8ca093383c08bdc005a
 DIST llvmorg-11.1.0.tar.gz 122776532 BLAKE2B ca842ff4afff8f44c82b5e7383962a9c45ca1c93b64fa4c6ebcd70a1d3849dbad2b8e4e24fba02d144c6266d7fab3607ebc6999b28c229cb35256cf40f26a985 SHA512 9a8ce022a935eed42fa71a224f2a207122aadcbef58ee855fdb4825f879e7d028e4dcff22c19b9d336db1c8bf63fb84372d44981acf84615f757e54306c92b81
 DIST llvmorg-12.0.1.tar.gz 134259748 BLAKE2B f41de787bc73ff2edfda1b22cc8602be6f65f37dd9e4c8888533cfa8c3ccdcf4f108aaab9de23ab0ab987966eb160f2a553a0bdff99461e71ddd5bfcd086090d SHA512 6eb0dc18e2c25935fabfdfc48b0114be0939158dfdef7b85b395fe2e71042672446af0e68750aae003c9847d10d1f63316fe95d3df738d18f249174292b1b9e1
 DIST llvmorg-13.0.0.tar.gz 147270176 BLAKE2B 628f316b580e1edf3a58d4825b724df759e6ed2a4116802470c04562caefc392fa325c91f388036365a2e45a9595cca6d3557fab12984fc8bcfef29c9116d822 SHA512 8004c05d32b9720fb3391783621690c1df9bd1e97e72cbff9192ed88a84b0acd303b61432145fa917b5b5e548c8cee29b24ef8547dcc8677adf4816e7a8a0eb2
-DIST llvmorg-13.0.1-rc3.tar.gz 147302323 BLAKE2B 9ac2f97568062d7dd618295a68d6e14898fcd69e2bb66290b999ceb8c12132371f4e9b59d8ba2b252e5e5cb249045676b24fc50c117b2afae20abab98f426582 SHA512 88a04ad02af2d41ec21c7a62bad21ee0e627b7276a16795875afd062ed29ac7fb4aadec5b5e48785a6502c9fd797a4b67d648a21f193c9f7602112870b10a3d1
+DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
+DIST llvmorg-14.0.0-rc4.tar.gz 158082013 BLAKE2B 0e717898d8f1ed160e525a68aba56a84b7d31856ea72fdb8fa02e863c5a2074245a38d4a4aa7d178beab1ea64aa92d0ba9dcad4373ebb03868070bf718112107 SHA512 a942848aa5042b97bab6d0d5bcee11ea2f85f1244d7eaadb8f7000bf104b2160e6034c04e3755501dd178bc99c26669cf4aca40edb4bba598fdde6bcf3f40ddc
 EBUILD clang-11.1.0.ebuild 11573 BLAKE2B adb4fc733f04605c63c711d3b9c9ce3358108efd013bcda58fe776dd5be0f978475dc686bfa2ca1c22bece3e13f60e412e33ebcd907e1e08d27932e254f6996a SHA512 a6fe29ca8c599f022147aae1fe8c0af8aacf33de2f02c19c9850bc06147f968cb579070c2a6763615cf04740c131719e17495b07b8f2ba9d32874587a2e20784
 EBUILD clang-12.0.1.ebuild 11726 BLAKE2B 2dca51da0a8683bac8cf7b0d3a45cbe97e829b6699b25c477245fa7c891b899ae2cdc40a0e628f4f3830fb18bfeb2ce5b9493651c6498c841986018f5ded69b6 SHA512 c7e81f72c28ea11e698ecfab7bc3075002503105df65d938a87079b1d28ced24dbce23fdb9acfbc7c2972d9dca69205f102635f5cba62110c02c8ac8bc8b8764
 EBUILD clang-13.0.0.ebuild 11288 BLAKE2B 6a49d6681c081e713e17679ea3ae1d87ee98a3229426a0f3e6d481c1a8fb78a00d267402687373ffcab3c48b4b8888fb8509779cb118ff63d4cb2f10306439e7 SHA512 e17c03e45d1c522e837e76f3ef5ebbbf6ec91c4b248cd874e4b0fe1dbb2f3ee4264fd318ebabb4d466929bd4f087922609356d3212ce696741e98faa2fd9ee47
-EBUILD clang-13.0.1.9999.ebuild 11224 BLAKE2B c5769810a83527aa2270af32f4e3e9dbc605ee91d7e21084b0987cb64f173166c4d3d9bdbbc664f15c0be201e79150274e3ff0fac257bf3dd024d643259783a8 SHA512 45fdaf62140809b0818862eb820bcbb43c40dd2d8072ca843c6b1b794752b21c6455cc4a46bc1bbabe3f2ccfdfea3a0d2ea8e04be5169501a372cb9459ffcde6
-EBUILD clang-13.0.1_rc3.ebuild 11227 BLAKE2B c7a26ebdcb348a63902b672c0a34b7d968e22a0e42a2b46a36e5da1870de2ae965091e2c12e6dd26cafe7195705a5aee57e20c1b5afd53ac1a6e553075141234 SHA512 97753487226691786ced7d613b804400e918f931c74e85196e6b5703f2e0a70fc49e745560c8485178edf63a3dc69e6ae0fdd57c6166ba3f172429d33043cd63
-EBUILD clang-14.0.0.9999.ebuild 11274 BLAKE2B 566f200c0b119de45cb0a4802d8dafb79188ed35e31d604594cc9d2d6ecc86642ead18c3ee945a746f5efe994c437d0d087b76c4ce031dc954c5db0d7fd575ee SHA512 035f6e47bfc469916da71047c8af3877fcbc727cfb2e68ffb159906327d6f4bd94d99bda62f04051205102fed002d43cafbdea3029a894023586be2366f5849d
+EBUILD clang-13.0.1.ebuild 11304 BLAKE2B d274cbb907b3ae41f3755146242a1da3f98dedf405b245056294294d71b6c3e521f81631b16c2c589d068766ae9c7f2b3dcd03100e052d842c22b81b8d83accc SHA512 5e367d1ede076032041c58cd8ef558e7c67a148c9a602f6bf17db7af355ce6eb3873973ae3f324da240d6ab6682e824909f059d3c5991daf6d98d258f8ea6a45
+EBUILD clang-14.0.0.9999.ebuild 11352 BLAKE2B 5f6e9f05b99f03b181b8ae341f614f9cf3c0b8c384e0e6fb9a2b8ba6c746112d88a1507f69685425f55f7d37a0577e90c6447fe04a675d993a379e870395c30d SHA512 137bd65b74ed4380c454bd153c81cc68fbd4d17f857e05256672e018c0fa82b0745f4042ea8630aba9cc62c19063c03df9b4c8c6158567e95709b9e7e7b63b9b
+EBUILD clang-14.0.0_rc4.ebuild 11352 BLAKE2B 5f6e9f05b99f03b181b8ae341f614f9cf3c0b8c384e0e6fb9a2b8ba6c746112d88a1507f69685425f55f7d37a0577e90c6447fe04a675d993a379e870395c30d SHA512 137bd65b74ed4380c454bd153c81cc68fbd4d17f857e05256672e018c0fa82b0745f4042ea8630aba9cc62c19063c03df9b4c8c6158567e95709b9e7e7b63b9b
+EBUILD clang-15.0.0.9999.ebuild 11352 BLAKE2B 5f6e9f05b99f03b181b8ae341f614f9cf3c0b8c384e0e6fb9a2b8ba6c746112d88a1507f69685425f55f7d37a0577e90c6447fe04a675d993a379e870395c30d SHA512 137bd65b74ed4380c454bd153c81cc68fbd4d17f857e05256672e018c0fa82b0745f4042ea8630aba9cc62c19063c03df9b4c8c6158567e95709b9e7e7b63b9b
 MISC metadata.xml 1337 BLAKE2B 5e4f7d63cd9f3b03600801cbe3b2963a1e6b2fb48e36fdb12862f467829222c182f5958d35b535d8fa8467ebaad05c9641cd645294706e3a0f4a078dc9c2f8cf SHA512 50c1a7c33414f9d6294873478f1017dfb21311b36c916e15a8b068cf2a968fe8d774b51515f61c3632d2b204f103cc7ae6853b14d582291087a0fb8e15c0b35a
diff --git a/sys-devel/clang/clang-13.0.1_rc3.ebuild b/sys-devel/clang/clang-13.0.1.ebuild
index ae93802425a4..2aa75d0f943a 100644
--- a/sys-devel/clang/clang-13.0.1_rc3.ebuild
+++ b/sys-devel/clang/clang-13.0.1.ebuild
@@ -15,7 +15,7 @@ HOMEPAGE="https://llvm.org/"
 
 LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="$(ver_cut 1)"
-KEYWORDS=""
+KEYWORDS="amd64 arm arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x64-macos"
 IUSE="debug default-compiler-rt default-libcxx default-lld
 	doc llvm-libunwind +static-analyzer test xml"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
@@ -45,7 +45,7 @@ PDEPEND="
 	default-lld? ( sys-devel/lld )"
 
 LLVM_COMPONENTS=( clang clang-tools-extra )
-LLVM_MANPAGES=build
+LLVM_MANPAGES=pregenerated
 LLVM_TEST_COMPONENTS=(
 	llvm/lib/Testing/Support
 	llvm/utils/{lit,llvm-lit,unittest}
diff --git a/sys-devel/clang/clang-14.0.0.9999.ebuild b/sys-devel/clang/clang-14.0.0.9999.ebuild
index 1de9a1a3a542..81598e69a80e 100644
--- a/sys-devel/clang/clang-14.0.0.9999.ebuild
+++ b/sys-devel/clang/clang-14.0.0.9999.ebuild
@@ -17,7 +17,7 @@ LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="$(ver_cut 1)"
 KEYWORDS=""
 IUSE="debug default-compiler-rt default-libcxx default-lld
-	doc llvm-libunwind +static-analyzer test xml"
+	doc llvm-libunwind +pie +static-analyzer test xml"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 RESTRICT="!test? ( test )"
 
@@ -44,14 +44,17 @@ PDEPEND="
 	default-libcxx? ( >=sys-libs/libcxx-${PV} )
 	default-lld? ( sys-devel/lld )"
 
-LLVM_COMPONENTS=( clang clang-tools-extra )
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
 LLVM_MANPAGES=build
 LLVM_TEST_COMPONENTS=(
 	llvm/lib/Testing/Support
 	llvm/utils/{lit,llvm-lit,unittest}
 	llvm/utils/{UpdateTestChecks,update_cc_test_checks.py}
 )
-LLVM_PATCHSET=9999-2
+LLVM_PATCHSET=9999-r3
 LLVM_USE_TARGETS=llvm
 llvm.org_set_globals
 
@@ -80,7 +83,7 @@ src_prepare() {
 
 	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
 	eprefixify \
-		lib/Frontend/InitHeaderSearch.cpp \
+		lib/Lex/InitHeaderSearch.cpp \
 		lib/Driver/ToolChains/Darwin.cpp || die
 }
 
@@ -253,6 +256,7 @@ multilib_src_configure() {
 		-DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
 		-DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
 		-DCLANG_DEFAULT_LINKER=$(usex default-lld lld "")
+		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
 		-DCLANG_DEFAULT_UNWINDLIB=$(usex default-compiler-rt libunwind "")
 
 		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
diff --git a/sys-devel/clang/clang-13.0.1.9999.ebuild b/sys-devel/clang/clang-14.0.0_rc4.ebuild
index c9cdf6cd226b..81598e69a80e 100644
--- a/sys-devel/clang/clang-13.0.1.9999.ebuild
+++ b/sys-devel/clang/clang-14.0.0_rc4.ebuild
@@ -17,7 +17,7 @@ LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
 SLOT="$(ver_cut 1)"
 KEYWORDS=""
 IUSE="debug default-compiler-rt default-libcxx default-lld
-	doc llvm-libunwind +static-analyzer test xml"
+	doc llvm-libunwind +pie +static-analyzer test xml"
 REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 RESTRICT="!test? ( test )"
 
@@ -44,14 +44,17 @@ PDEPEND="
 	default-libcxx? ( >=sys-libs/libcxx-${PV} )
 	default-lld? ( sys-devel/lld )"
 
-LLVM_COMPONENTS=( clang clang-tools-extra )
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
 LLVM_MANPAGES=build
 LLVM_TEST_COMPONENTS=(
 	llvm/lib/Testing/Support
 	llvm/utils/{lit,llvm-lit,unittest}
 	llvm/utils/{UpdateTestChecks,update_cc_test_checks.py}
 )
-LLVM_PATCHSET=9999-2
+LLVM_PATCHSET=9999-r3
 LLVM_USE_TARGETS=llvm
 llvm.org_set_globals
 
@@ -80,7 +83,7 @@ src_prepare() {
 
 	# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
 	eprefixify \
-		lib/Frontend/InitHeaderSearch.cpp \
+		lib/Lex/InitHeaderSearch.cpp \
 		lib/Driver/ToolChains/Darwin.cpp || die
 }
 
@@ -253,6 +256,7 @@ multilib_src_configure() {
 		-DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
 		-DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
 		-DCLANG_DEFAULT_LINKER=$(usex default-lld lld "")
+		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
 		-DCLANG_DEFAULT_UNWINDLIB=$(usex default-compiler-rt libunwind "")
 
 		-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
@@ -262,6 +266,7 @@ multilib_src_configure() {
 	)
 	use test && mycmakeargs+=(
 		-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+		-DLLVM_EXTERNAL_LIT="${BUILD_DIR}/bin/llvm-lit"
 		-DLLVM_LIT_ARGS="$(get_lit_flags)"
 	)
 
diff --git a/sys-devel/clang/clang-15.0.0.9999.ebuild b/sys-devel/clang/clang-15.0.0.9999.ebuild
new file mode 100644
index 000000000000..81598e69a80e
--- /dev/null
+++ b/sys-devel/clang/clang-15.0.0.9999.ebuild
@@ -0,0 +1,427 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{8..10} )
+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="$(ver_cut 1)"
+KEYWORDS=""
+IUSE="debug default-compiler-rt default-libcxx default-lld
+	doc llvm-libunwind +pie +static-analyzer test xml"
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	~sys-devel/llvm-${PV}:${SLOT}=[debug=,${MULTILIB_USEDEP}]
+	static-analyzer? ( dev-lang/perl:* )
+	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+	${PYTHON_DEPS}"
+
+DEPEND="${RDEPEND}"
+BDEPEND="
+	>=dev-util/cmake-3.16
+	doc? ( dev-python/sphinx )
+	xml? ( virtual/pkgconfig )
+	${PYTHON_DEPS}"
+PDEPEND="
+	sys-devel/clang-common
+	~sys-devel/clang-runtime-${PV}
+	default-compiler-rt? (
+		=sys-libs/compiler-rt-${PV%_*}*
+		llvm-libunwind? ( sys-libs/llvm-libunwind )
+		!llvm-libunwind? ( sys-libs/libunwind )
+	)
+	default-libcxx? ( >=sys-libs/libcxx-${PV} )
+	default-lld? ( sys-devel/lld )"
+
+LLVM_COMPONENTS=(
+	clang clang-tools-extra cmake
+	llvm/lib/Transforms/Hello
+)
+LLVM_MANPAGES=build
+LLVM_TEST_COMPONENTS=(
+	llvm/lib/Testing/Support
+	llvm/utils/{lit,llvm-lit,unittest}
+	llvm/utils/{UpdateTestChecks,update_cc_test_checks.py}
+)
+LLVM_PATCHSET=9999-r3
+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=${SLOT} llvm_pkg_setup
+	python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	# create extra parent dir for relative CLANG_RESOURCE_DIR access
+	mkdir -p x/y || die
+	BUILD_DIR=${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 ${l} in
+					# meta-targets
+					clang-libraries|distribution)
+						continue
+						;;
+					# headers for clang-tidy static library
+					clang-tidy-headers)
+						continue
+						;;
+					# tools
+					clang|clangd|clang-*)
+						;;
+					# static libraries
+					clang*|findAllSymbols)
+						continue
+						;;
+					# conditional to USE=doc
+					docs-clang-html|docs-clang-tools-html)
+						use doc || continue
+						;;
+				esac
+
+				all_targets+=( "${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
+
+		# 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-wrapper
+			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
+			clangd
+			find-all-symbols
+			modularize
+			pp-trace
+		)
+
+		if llvm_are_manpages_built; then
+			out+=(
+				# manpages
+				docs-clang-man
+				docs-clang-tools-man
+			)
+		fi
+
+		use doc && out+=(
+			docs-clang-html
+			docs-clang-tools-html
+		)
+
+		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 llvm_version=$(llvm-config --version) || die
+	local clang_version=$(ver_cut 1-3 "${llvm_version}")
+
+	local mycmakeargs=(
+		-DLLVM_CMAKE_PATH="${EPREFIX}/usr/lib/llvm/${SLOT}/$(get_libdir)/cmake/llvm"
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
+		-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
+		# relative to bindir
+		-DCLANG_RESOURCE_DIR="../../../../lib/clang/${clang_version}"
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DCLANG_LINK_CLANG_DYLIB=ON
+		-DLLVM_DISTRIBUTION_COMPONENTS=$(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=$(usex !xml)
+		# libgomp support fails to find headers without explicit -I
+		# furthermore, it provides only syntax checking
+		-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
+
+		# disable using CUDA to autodetect GPU, just build for all
+		-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
+
+		# override default stdlib and rtlib
+		-DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
+		-DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
+		-DCLANG_DEFAULT_LINKER=$(usex default-lld lld "")
+		-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
+		-DCLANG_DEFAULT_UNWINDLIB=$(usex default-compiler-rt libunwind "")
+
+		-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"
+				-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
+				-DSPHINX_WARNINGS_AS_ERRORS=OFF
+			)
+		fi
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
+			-DCLANG_INCLUDE_DOCS=${build_docs}
+			-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" "${WORKDIR}"/lib/clang || die
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-clang
+	multilib_is_native_abi &&
+		cmake_build check-clang-tools check-clangd
+}
+
+src_install() {
+	MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/clang/Config/config.h
+	)
+
+	multilib-minimal_src_install
+
+	# Move runtime headers to /usr/lib/clang, where they belong
+	mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
+	# move (remaining) wrapped headers back
+	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${SLOT}/include || die
+
+	# Apply CHOST and version suffix to clang tools
+	# note: we use two version components here (vs 3 in runtime path)
+	local llvm_version=$(llvm-config --version) || die
+	local clang_version=$(ver_cut 1 "${llvm_version}")
+	local clang_full_version=$(ver_cut 1-3 "${llvm_version}")
+	local clang_tools=( clang clang++ clang-cl clang-cpp )
+	local abi i
+
+	# cmake gives us:
+	# - clang-X
+	# - clang -> clang-X
+	# - clang++, clang-cl, clang-cpp -> clang
+	# we want to have:
+	# - clang-X
+	# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
+	# - clang, clang++, clang-cl, clang-cpp -> clang*-X
+	# also in CHOST variant
+	for i in "${clang_tools[@]:1}"; do
+		rm "${ED}/usr/lib/llvm/${SLOT}/bin/${i}" || die
+		dosym "clang-${clang_version}" "/usr/lib/llvm/${SLOT}/bin/${i}-${clang_version}"
+		dosym "${i}-${clang_version}" "/usr/lib/llvm/${SLOT}/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 "${i}-${clang_version}" \
+				"/usr/lib/llvm/${SLOT}/bin/${abi_chost}-${i}-${clang_version}"
+			dosym "${abi_chost}-${i}-${clang_version}" \
+				"/usr/lib/llvm/${SLOT}/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 "${ED}"/usr/lib/llvm/${SLOT}/include "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${SLOT}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
+}
+
+multilib_src_install_all() {
+	python_fix_shebang "${ED}"
+	if use static-analyzer; then
+		python_optimize "${ED}"/usr/lib/llvm/${SLOT}/share/scan-view
+	fi
+
+	docompress "/usr/lib/llvm/${SLOT}/share/man"
+	llvm_install_manpages
+	# match 'html' non-compression
+	use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
+	# +x for some reason; TODO: investigate
+	use static-analyzer && fperms a-x "/usr/lib/llvm/${SLOT}/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 "  ${EROOT}/usr/lib/llvm/${SLOT}/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"
+}
+
+pkg_postrm() {
+	if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
+		eselect compiler-shadow clean all
+	fi
+}