gentoo auto-resync : 19:04:2023 - 23:58:47

2 files changed, 521 insertions, 0 deletions

diff --git a/sys-devel/llvm/Manifest b/sys-devel/llvm/Manifest
index 6abb8d1b81d4..6b758f5ea331 100644
--- a/sys-devel/llvm/Manifest
+++ b/sys-devel/llvm/Manifest
@@ -1,6 +1,7 @@
 DIST llvm-14.0.6-manpages.tar.bz2 218186 BLAKE2B 4491296e490936a2d7b518e19a0ff6312b89abeef3fbe5da5d0b93bb2add1088ddf64a0b00ec8846062d19b1ad31e53eadee7ce03c9034aab554e183d1baccf6 SHA512 f8328dc2ec1e8d941d47e583ee31fae7bdcebb3f854b5c8a4a84bd19a79bf5427ad204012c81349bc05a291e41cf48e5129b4578bbd5d4490dd01e1c0b5823bf
 DIST llvm-15.0.7-manpages.tar.bz2 228425 BLAKE2B 573b030a32407cfe241fb2c8c62bed8e7c54f9daf4b8cffdd2d4e5ca2e40b5ec5ed3724475aedf77119be1a4d9de847a989e933d315e6d94908e407a19c98047 SHA512 86d5eeea2757b0a627c8d2d6e70a3265fc0207085f4e473cdd6e8b624c719625dead23fd1737742a1bea27b1c4631ef3e8e3041a1122a85fcb49859e5bfbee49
 DIST llvm-16.0.1-manpages.tar.bz2 243292 BLAKE2B febf892d91f16f1b320083563ebecd0632e26823e316c62d608f4445979423c597534e75191522202168d76e7aa355bbccff0378e0152e7a0ac14cb95ba7baaf SHA512 0183a421167d8d20bd60306a43d3c4069f87e73615102a7430c2a4bd057c96e7941c91b8d92cfe7b29f2691d517c4a5406052a3a818fcaf1356e0392397c1676
+DIST llvm-16.0.2-manpages.tar.bz2 245800 BLAKE2B f9672c11710d48d36f2a3508b6473746ad02223eeb9aa282929e2b7b8b89bf76d3c121c1df0ac78c66040b632e4090dad8e2baaf1d9862495eb991b1baa3f9ad SHA512 11183cc818500d7805831c79f77b279af27435304c3464d8f74b1f9dda915365e09d699d221e43f98f8bad8a14498d4a471dc13f9c3afe6d0eaaf7f59661a9fe
 DIST llvm-gentoo-patchset-14.0.6-r2.tar.xz 16120 BLAKE2B e12e522fdb7ba505693c679cb09cc8e00e6a954df195c86c2af4dbf1b68334a405b8dcc45f2e28b5e5e0b7e9d5eb7ba907337027927371b7a3b7784ff8aae7e0 SHA512 8a5ea71c30fc0727cc855dd812bbcb6d5f51c80c98eb3d5b80258d5c5eaab1310edc9d53ae63c2ca827abec68e2912c4b69ef0da351ff883fb30545a61e1d09c
 DIST llvm-gentoo-patchset-15.0.7.tar.xz 19300 BLAKE2B b70e81d744c2eba5cd851e7b690ce8979b3064973f522be7c93bfb541860000a4bc8b17219f8788dfc8a527217dd13946cf7836640698ddd3d4b3fde493dfbf8 SHA512 daffff6ae4a0874aff1a423b4bb36701ecb5a35a36ae91d4ed7fda58b83e50ffcdc30498c84be4711fd3e1f227bf312dbe930019203e0a131944439af2aa94f7
 DIST llvm-project-0be1fbac2a7797399c0970e3f4033288036b65f6.tar.gz 181527027 BLAKE2B f2f3b3a33b2a50f3b4f97df16a948e5ed5e642f737de8e852da164aefd3ed9af7bbd0fc1de9f7c9dbee6b9b8ebe11e52af8cc79b8a130cff405fc1238afe217d SHA512 946cd1435a26673c851bdda170864d0c362dfc14d1a7087fbe6303ac79e1821e9c53b72e92d15ad7180b1d6ea3bcc0458e7bec37acc3e8b8bcca8efbb9ff2387
@@ -10,10 +11,13 @@ 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-16.0.1.src.tar.xz 117990772 BLAKE2B 298189ce6d7245711e5bd3e03fa74d603dda5a458463ca0cb261fe6949290c46a70abbd1ad1c556e08da3adc5df577305e267c1135214b900d78502e39b46bc5 SHA512 98fc11c0ad90d5e5a2cb123b497b89a1583fe7f91b3ff05c335037801ef66cbfab08f6d2eff539f0da238e9685d4bc7a9fb2578e28864fc9e9357b84129cefaa
 DIST llvm-project-16.0.1.src.tar.xz.sig 566 BLAKE2B 06c03d789e63ab30bba4c56ba9ec91400d804448482d6a7fd395252b3b9166a5ee7a42a94c2074aa0d1809a3327f993d8932211f3fc05ad281db64c17b2a7094 SHA512 f42db28eb8280db06b1c78fa7a7aaea3a79499cecee1a64ce18c49b90c755b3a78fc93f01d1855887c7918ccc927c3b6147cfc916520f05d4cef65381ca6fe60
+DIST llvm-project-16.0.2.src.tar.xz 117995768 BLAKE2B b329b2b123428f3a966a96f074a75520f07d12fc13ec755403cff2346b23195e6a0c05ca9e789b4cf5b4b3557a922bd41d8dffb6056ee33fbbf2b81001511fae SHA512 4ca76aaaca8812a06a94071e7444a3213d85dca51ea86f6125f854776f69a3e088a92d0621e3911e526f280b35bfb778fb3742c6010d3ed1eba605c08720377c
+DIST llvm-project-16.0.2.src.tar.xz.sig 566 BLAKE2B 8243748ac27e4eec3cc011371e179e19f1005336f07d956fd358f649d1429c8d0ea22ecc376b1dec9fe3db971467ad1dd63e97bb089885d0e1994eeab26b6fd7 SHA512 dbe9367a259954a38f2369b2f226726162090227f1a5ae8c8809eaae47cad7b3b26c754633e6e5c54cacd6360a504d7ba4c659d9232c1648388d657a2aaad10c
 DIST llvm-project-5c60a08c696c0420ddc5fdad5b8e50a7528cb3bf.tar.gz 182291041 BLAKE2B f5997611e0293df515d4494d14895cc8fbe22b536f5c419e4ad7d098acbf2b1046ceb332d865eacdae0b7fa1a77b78090551976835dd1b95b5270c9f6e12e410 SHA512 6cda8e55b4fc70e94838c772c56213c811affda96fb98a03d432348f995a313447d0e0e84533350e1fda3162d82633b260ccd8e3b1d59d3216187b44dc5556fb
 EBUILD llvm-14.0.6-r2.ebuild 12389 BLAKE2B 549b4e1c7feceb40c7e5aaa624925ec08627c84236c460f85a044621dc388cfca248f8a311c657a3b3dadbd367472f3c820a635c14246f74fdac98dd2ddf6fd1 SHA512 8559954b641fc007c92d4b3e2fcc129bdd812f974dccf37d74f61cb9d7414e28cbb41d7088767356035b972c1e417561770a89169676841e762e62644c6d0323
 EBUILD llvm-15.0.7.ebuild 12558 BLAKE2B 1f73f500a38ee4e96438a5e478781a562d48e10d550cd6c5beaf37a754ead1f0bedb121be78c6bee229f694cb085ee665f7b33a44eacba0d6eeaa42b545f6ca7 SHA512 92dd8f7f8554ee24978ef4e1409f5356a95455d2b5006da0a5dbf27cc277962916a0e93d2f7630a0eb3a9f3a1167eb9aeec0a319de3637c5762a7c391d3f5330
 EBUILD llvm-16.0.1.ebuild 12490 BLAKE2B 95b6ae05f64728668134ff348e5d084346285425e57c69a7345a44f85c832523b1219a76c3b2c6274e190b869569be3f91d9e5c0298e13167f3e6e0e8d676f66 SHA512 eec238ccb340ad901e130d984349ee4a9788bec4cd7def73a6c946becd1b86b74ee044e39cda48f892017a06e2a381a0424caaf44d073a51c64625c3b45411ba
+EBUILD llvm-16.0.2.ebuild 12490 BLAKE2B 95b6ae05f64728668134ff348e5d084346285425e57c69a7345a44f85c832523b1219a76c3b2c6274e190b869569be3f91d9e5c0298e13167f3e6e0e8d676f66 SHA512 eec238ccb340ad901e130d984349ee4a9788bec4cd7def73a6c946becd1b86b74ee044e39cda48f892017a06e2a381a0424caaf44d073a51c64625c3b45411ba
 EBUILD llvm-16.0.3.9999.ebuild 12399 BLAKE2B d18e5df615286b2e89b9b4c8eb8b79984c20cc5022545f713d92df70bf5f404edc380d5175dd767fcd7957653a5bd0ba5a3ed602c7d7f3c2dea0a06eda7f7a4e SHA512 c0af4a0925717b1d8783383b543425f558a249056d8424d71d441e365867c24d6a8b243632d4c4f9685242d4f1b671591448553c5dde5acea1563e02381aa3a5
 EBUILD llvm-17.0.0.9999.ebuild 12757 BLAKE2B 0f9e50da2e9a963ad952b87b2194a6b47ee97fe75eb8a660cd1bc2e0d2c1ce6b780cac0778abb2095b86a575a4f432ecb8cf7a533f297514cfb13bb34a2b5856 SHA512 f55bebe64915822516013e30a5fb911b1be967ca96931373ea7cbaed5e6fcaf3e593016848803c5d57c89ac9aa58a2ca1ce6fef0ac9bb9d3dfc1a0028e64426a
 EBUILD llvm-17.0.0_pre20230325.ebuild 12572 BLAKE2B 8cb52862e845d3b05271be7a94d5c3a2d955959ccb5d4bda87ca152a37746ddc848060e1d69e79daa0a1a06d3da745baeda7301f6790aee39e66a9c92a01f1cb SHA512 d0b022959fcf70ca0ab5320b11ae55ababd302fa0e62afc13b3ba519620c26e12b922449008b5d8dd2d7dc397b9d39bc79787f5d10aa0bc55410db28c9a39a9c
diff --git a/sys-devel/llvm/llvm-16.0.2.ebuild b/sys-devel/llvm/llvm-16.0.2.ebuild
new file mode 100644
index 000000000000..164977c556dc
--- /dev/null
+++ b/sys-devel/llvm/llvm-16.0.2.ebuild
@@ -0,0 +1,517 @@
+# 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.org multilib-minimal pax-utils python-any-r1 \
+	toolchain-funcs flag-o-matic
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="https://llvm.org/"
+
+# Additional licenses:
+# 1. OpenBSD regex: Henry Spencer's license ('rc' in Gentoo) + BSD.
+# 2. xxhash: BSD.
+# 3. MD5 code: public-domain.
+# 4. ConvertUTF.h: TODO.
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA BSD public-domain rc"
+SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~ppc-macos ~x64-macos"
+IUSE="
+	+binutils-plugin debug doc exegesis libedit +libffi ncurses test xar
+	xml z3 zstd
+"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	sys-libs/zlib:0=[${MULTILIB_USEDEP}]
+	exegesis? ( dev-libs/libpfm:= )
+	libedit? ( dev-libs/libedit:0=[${MULTILIB_USEDEP}] )
+	libffi? ( >=dev-libs/libffi-3.0.13-r1:0=[${MULTILIB_USEDEP}] )
+	ncurses? ( >=sys-libs/ncurses-5.9-r3:0=[${MULTILIB_USEDEP}] )
+	xar? ( app-arch/xar )
+	xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+	z3? ( >=sci-mathematics/z3-4.7.1:0=[${MULTILIB_USEDEP}] )
+	zstd? ( app-arch/zstd:=[${MULTILIB_USEDEP}] )
+"
+DEPEND="
+	${RDEPEND}
+	binutils-plugin? ( sys-libs/binutils-libs )
+"
+BDEPEND="
+	${PYTHON_DEPS}
+	dev-lang/perl
+	>=dev-util/cmake-3.16
+	sys-devel/gnuconfig
+	kernel_Darwin? (
+		<sys-libs/libcxx-${LLVM_VERSION}.9999
+		>=sys-devel/binutils-apple-5.1
+	)
+	doc? ( $(python_gen_any_dep '
+		dev-python/recommonmark[${PYTHON_USEDEP}]
+		dev-python/sphinx[${PYTHON_USEDEP}]
+	') )
+	libffi? ( virtual/pkgconfig )
+"
+# There are no file collisions between these versions but having :0
+# installed means llvm-config there will take precedence.
+RDEPEND="
+	${RDEPEND}
+	!sys-devel/llvm:0
+"
+PDEPEND="
+	sys-devel/llvm-common
+	sys-devel/llvm-toolchain-symlinks:${LLVM_MAJOR}
+	binutils-plugin? ( >=sys-devel/llvmgold-${LLVM_MAJOR} )
+"
+
+LLVM_COMPONENTS=( llvm cmake )
+LLVM_TEST_COMPONENTS=( third-party )
+LLVM_MANPAGES=1
+LLVM_USE_TARGETS=provide
+llvm.org_set_globals
+
+python_check_deps() {
+	use doc || return 0
+
+	python_has_version -b "dev-python/recommonmark[${PYTHON_USEDEP}]" &&
+	python_has_version -b "dev-python/sphinx[${PYTHON_USEDEP}]"
+}
+
+check_uptodate() {
+	local prod_targets=(
+		$(sed -n -e '/set(LLVM_ALL_TARGETS/,/)/p' CMakeLists.txt \
+			| tail -n +2 | head -n -1)
+	)
+	local all_targets=(
+		lib/Target/*/
+	)
+	all_targets=( "${all_targets[@]#lib/Target/}" )
+	all_targets=( "${all_targets[@]%/}" )
+
+	local exp_targets=() i
+	for i in "${all_targets[@]}"; do
+		has "${i}" "${prod_targets[@]}" || exp_targets+=( "${i}" )
+	done
+
+	if [[ ${exp_targets[*]} != ${ALL_LLVM_EXPERIMENTAL_TARGETS[*]} ]]; then
+		eqawarn "ALL_LLVM_EXPERIMENTAL_TARGETS is outdated!"
+		eqawarn "    Have: ${ALL_LLVM_EXPERIMENTAL_TARGETS[*]}"
+		eqawarn "Expected: ${exp_targets[*]}"
+		eqawarn
+	fi
+
+	if [[ ${prod_targets[*]} != ${ALL_LLVM_PRODUCTION_TARGETS[*]} ]]; then
+		eqawarn "ALL_LLVM_PRODUCTION_TARGETS is outdated!"
+		eqawarn "    Have: ${ALL_LLVM_PRODUCTION_TARGETS[*]}"
+		eqawarn "Expected: ${prod_targets[*]}"
+	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 ${l} in
+					# shared libs
+					LLVM|LLVMgold)
+						;;
+					# TableGen lib + deps
+					LLVMDemangle|LLVMSupport|LLVMTableGen)
+						;;
+					# static libs
+					LLVM*)
+						continue
+						;;
+					# meta-targets
+					distribution|llvm-libraries)
+						continue
+						;;
+					# used only w/ USE=doc
+					docs-llvm-html)
+						use doc || continue
+						;;
+				esac
+
+				all_targets+=( "${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: ${remove[*]}"
+		fi
+		cd - >/dev/null || die
+	fi
+}
+
+src_prepare() {
+	# disable use of SDK on OSX, bug #568758
+	sed -i -e 's/xcrun/false/' utils/lit/lit/util.py || die
+
+	# Update config.guess to support more systems
+	cp "${BROOT}/usr/share/gnuconfig/config.guess" cmake/ || die
+
+	# Verify that the ebuild is up-to-date
+	check_uptodate
+
+	llvm.org_src_prepare
+}
+
+get_distribution_components() {
+	local sep=${1-;}
+
+	local out=(
+		# shared libs
+		LLVM
+		LTO
+		Remarks
+
+		# tools
+		llvm-config
+
+		# common stuff
+		cmake-exports
+		llvm-headers
+
+		# libraries needed for clang-tblgen
+		LLVMDemangle
+		LLVMSupport
+		LLVMTableGen
+	)
+
+	if multilib_is_native_abi; then
+		out+=(
+			# utilities
+			llvm-tblgen
+			FileCheck
+			llvm-PerfectShuffle
+			count
+			not
+			yaml-bench
+			UnicodeNameMappingGenerator
+
+			# tools
+			bugpoint
+			dsymutil
+			llc
+			lli
+			lli-child-target
+			llvm-addr2line
+			llvm-ar
+			llvm-as
+			llvm-bcanalyzer
+			llvm-bitcode-strip
+			llvm-c-test
+			llvm-cat
+			llvm-cfi-verify
+			llvm-config
+			llvm-cov
+			llvm-cvtres
+			llvm-cxxdump
+			llvm-cxxfilt
+			llvm-cxxmap
+			llvm-debuginfo-analyzer
+			llvm-debuginfod
+			llvm-debuginfod-find
+			llvm-diff
+			llvm-dis
+			llvm-dlltool
+			llvm-dwarfdump
+			llvm-dwarfutil
+			llvm-dwp
+			llvm-exegesis
+			llvm-extract
+			llvm-gsymutil
+			llvm-ifs
+			llvm-install-name-tool
+			llvm-jitlink
+			llvm-jitlink-executor
+			llvm-lib
+			llvm-libtool-darwin
+			llvm-link
+			llvm-lipo
+			llvm-lto
+			llvm-lto2
+			llvm-mc
+			llvm-mca
+			llvm-ml
+			llvm-modextract
+			llvm-mt
+			llvm-nm
+			llvm-objcopy
+			llvm-objdump
+			llvm-opt-report
+			llvm-otool
+			llvm-pdbutil
+			llvm-profdata
+			llvm-profgen
+			llvm-ranlib
+			llvm-rc
+			llvm-readelf
+			llvm-readobj
+			llvm-reduce
+			llvm-remark-size-diff
+			llvm-remarkutil
+			llvm-rtdyld
+			llvm-sim
+			llvm-size
+			llvm-split
+			llvm-stress
+			llvm-strings
+			llvm-strip
+			llvm-symbolizer
+			llvm-tapi-diff
+			llvm-tli-checker
+			llvm-undname
+			llvm-windres
+			llvm-xray
+			obj2yaml
+			opt
+			sancov
+			sanstats
+			split-file
+			verify-uselistorder
+			yaml2obj
+
+			# python modules
+			opt-viewer
+		)
+
+		if llvm_are_manpages_built; then
+			out+=(
+				# manpages
+				docs-dsymutil-man
+				docs-llvm-dwarfdump-man
+				docs-llvm-man
+			)
+		fi
+		use doc && out+=(
+			docs-llvm-html
+		)
+
+		use binutils-plugin && out+=(
+			LLVMgold
+		)
+	fi
+
+	printf "%s${sep}" "${out[@]}"
+}
+
+multilib_src_configure() {
+	tc-is-gcc && filter-lto # GCC miscompiles LLVM, bug #873670
+
+	local ffi_cflags ffi_ldflags
+	if use libffi; then
+		ffi_cflags=$($(tc-getPKG_CONFIG) --cflags-only-I libffi)
+		ffi_ldflags=$($(tc-getPKG_CONFIG) --libs-only-L libffi)
+	fi
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		# disable appending VCS revision to the version to improve
+		# direct cache hit ratio
+		-DLLVM_APPEND_VC_REV=OFF
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+		-DBUILD_SHARED_LIBS=OFF
+		-DLLVM_BUILD_LLVM_DYLIB=ON
+		-DLLVM_LINK_LLVM_DYLIB=ON
+		-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
+
+		# cheap hack: LLVM combines both anyway, and the only difference
+		# is that the former list is explicitly verified at cmake time
+		-DLLVM_TARGETS_TO_BUILD=""
+		-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
+		-DLLVM_INCLUDE_BENCHMARKS=OFF
+		-DLLVM_INCLUDE_TESTS=$(usex test)
+		-DLLVM_BUILD_TESTS=$(usex test)
+
+		-DLLVM_ENABLE_FFI=$(usex libffi)
+		-DLLVM_ENABLE_LIBEDIT=$(usex libedit)
+		-DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+		-DLLVM_ENABLE_LIBXML2=$(usex xml)
+		-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
+		-DLLVM_ENABLE_LIBPFM=$(usex exegesis)
+		-DLLVM_ENABLE_EH=ON
+		-DLLVM_ENABLE_RTTI=ON
+		-DLLVM_ENABLE_Z3_SOLVER=$(usex z3)
+		-DLLVM_ENABLE_ZSTD=$(usex zstd)
+
+		-DLLVM_HOST_TRIPLE="${CHOST}"
+
+		-DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
+		-DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
+		# used only for llvm-objdump tool
+		-DLLVM_HAVE_LIBXAR=$(multilib_native_usex xar 1 0)
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+
+		# disable OCaml bindings (now in dev-ml/llvm-ocaml)
+		-DOCAMLFIND=NO
+	)
+
+	local suffix=
+	if [[ -n ${EGIT_VERSION} && ${EGIT_BRANCH} != release/* ]]; then
+		# the ABI of the main branch is not stable, so let's include
+		# the commit id in the SOVERSION to contain the breakage
+		suffix+="git${EGIT_VERSION::8}"
+	fi
+	if [[ $(tc-get-cxx-stdlib) == libc++ ]]; then
+		# Smart hack: alter version suffix -> SOVERSION when linking
+		# against libc++. This way we won't end up mixing LLVM libc++
+		# libraries with libstdc++ clang, and the other way around.
+		suffix+="+libcxx"
+		mycmakeargs+=(
+			-DLLVM_ENABLE_LIBCXX=ON
+		)
+	fi
+	mycmakeargs+=(
+		-DLLVM_VERSION_SUFFIX="${suffix}"
+	)
+
+	use test && mycmakeargs+=(
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	if multilib_is_native_abi; then
+		local build_docs=OFF
+		if llvm_are_manpages_built; then
+			build_docs=ON
+			mycmakeargs+=(
+				-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+				-DLLVM_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+				-DSPHINX_WARNINGS_AS_ERRORS=OFF
+			)
+		fi
+
+		mycmakeargs+=(
+			-DLLVM_BUILD_DOCS=${build_docs}
+			-DLLVM_ENABLE_OCAMLDOC=OFF
+			-DLLVM_ENABLE_SPHINX=${build_docs}
+			-DLLVM_ENABLE_DOXYGEN=OFF
+			-DLLVM_INSTALL_UTILS=ON
+		)
+		use binutils-plugin && mycmakeargs+=(
+			-DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
+		)
+	fi
+
+	# workaround BMI bug in gcc-7 (fixed in 7.4)
+	# https://bugs.gentoo.org/649880
+	# apply only to x86, https://bugs.gentoo.org/650506
+	if tc-is-gcc && [[ ${MULTILIB_ABI_FLAG} == abi_x86* ]] &&
+			[[ $(gcc-major-version) -eq 7 && $(gcc-minor-version) -lt 4 ]]
+	then
+		local CFLAGS="${CFLAGS} -mno-bmi"
+		local CXXFLAGS="${CXXFLAGS} -mno-bmi"
+	fi
+
+	# LLVM can have very high memory consumption while linking,
+	# exhausting the limit on 32-bit linker executable
+	use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+	cmake_src_configure
+
+	grep -q -E "^CMAKE_PROJECT_VERSION_MAJOR(:.*)?=${LLVM_MAJOR}$" \
+			CMakeCache.txt ||
+		die "Incorrect version, did you update _LLVM_MASTER_MAJOR?"
+	multilib_is_native_abi && check_distribution_components
+}
+
+multilib_src_compile() {
+	tc-env_build cmake_build distribution
+
+	pax-mark m "${BUILD_DIR}"/bin/llvm-rtdyld
+	pax-mark m "${BUILD_DIR}"/bin/lli
+	pax-mark m "${BUILD_DIR}"/bin/lli-child-target
+
+	if use test; then
+		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/Orc/OrcJITTests
+		pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/MCJIT/MCJITTests
+		pax-mark m "${BUILD_DIR}"/unittests/Support/SupportTests
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check
+}
+
+src_install() {
+	local MULTILIB_CHOST_TOOLS=(
+		/usr/lib/llvm/${LLVM_MAJOR}/bin/llvm-config
+	)
+
+	local MULTILIB_WRAPPED_HEADERS=(
+		/usr/include/llvm/Config/llvm-config.h
+	)
+
+	local LLVM_LDPATHS=()
+	multilib-minimal_src_install
+
+	# move wrapped headers back
+	mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-distribution
+
+	# move headers to /usr/include for wrapping
+	rm -rf "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
+
+	LLVM_LDPATHS+=( "${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)" )
+}
+
+multilib_src_install_all() {
+	local revord=$(( 9999 - ${LLVM_MAJOR} ))
+	newenvd - "60llvm-${revord}" <<-_EOF_
+		PATH="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin"
+		# we need to duplicate it in ROOTPATH for Portage to respect...
+		ROOTPATH="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin"
+		MANPATH="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+		LDPATH="$( IFS=:; echo "${LLVM_LDPATHS[*]}" )"
+	_EOF_
+
+	docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
+	llvm_install_manpages
+}
+
+pkg_postinst() {
+	elog "You can find additional opt-viewer utility scripts in:"
+	elog "  ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/opt-viewer"
+	elog "To use these scripts, you will need Python along with the following"
+	elog "packages:"
+	elog "  dev-python/pygments (for opt-viewer)"
+	elog "  dev-python/pyyaml (for all of them)"
+}