gentoo resync : 04.07.2020

6 files changed, 503 insertions, 6 deletions

diff --git a/sys-devel/llvm/Manifest b/sys-devel/llvm/Manifest
index f9f84e926d84..9e059840939f 100644
--- a/sys-devel/llvm/Manifest
+++ b/sys-devel/llvm/Manifest
@@ -8,11 +8,13 @@ DIST llvm-8.0.1.src.tar.xz 30477608 BLAKE2B 4319c837b36111401e3b0f9659b8d875c894
 DIST llvm-9.0.0-manpages.tar.bz2 158546 BLAKE2B eed6235698a0b5993affe305f7fd22cd4cf444adf931275a1685f2049a5f17cf2933907577d9ce142348a3c579769b0436aa2b5a9a953958504125a8c3e83b7d SHA512 64c8d18061eb2870b379a1df485be0b61eac07cb10b3f97347b54b2ee326faa63437ca04466776be282e120dd3f6147e14fffdd38ca370db85748fe5eb54d764
 DIST llvmorg-10.0.0.tar.gz 120804856 BLAKE2B 6b0254f5b913398cdcf2b2ec1ff219888706d2b79d5296590934714e42ac79f6a6547941ac2b1d2c4e6313dd18b6c7068e748aa6ac033e49fccbf5d355aa8191 SHA512 baa182d62fef1851836013ae8a1a00861ea89769778d67fb97b407a9de664e6c85da2af9c5b3f75d2bf34ff6b00004e531ca7e4b3115a26c0e61c575cf2303a0
 DIST llvmorg-10.0.1-rc1.tar.gz 120834583 BLAKE2B 64244ebcb6f2c171c9f606e5eb0adff2794f06c9312a0ca627fb79c107c0c898ac242cf4e92523c3265fa717322601d7e3f4d178515fac95d03ee92312082b06 SHA512 f877f66046969a4055b166ad50ef876a9c8ecaf03e2cdd7c8e1a3348eb5f5180f222fa457b1f090a6660282a0d9f7a1d39cf09a04abe0dde0a6e1e10ccf15597
+DIST llvmorg-10.0.1-rc2.tar.gz 120883192 BLAKE2B d48f4ccb33691cd4997576a6d20b298455687515164f7d8dfa11ec32e197b58132c6bd549c1214c3b36982ef85e1018d4101e7afecee8d2ab67ad15d68c681bf SHA512 8e363d379a73e38ef570fb03d8243a21f37a48ef579a0f08118af4dac48060c0dc24e2bd8175f04241fa424e49b6c85723d2d3552bbe30dd165fe5fb43493325
 DIST llvmorg-9.0.1.tar.gz 113193320 BLAKE2B b86e405f2b8e00436045fd409fe19cdde75c797b1192c62a22b5ec75e6b4dc8e874a0f33008dc31562445e4cbe53a992b6f48c684255a6a1ef261e595b8b161f SHA512 fa88beeaae94b6d0cd9b5ba38658d0ffed8004035d7d8a4f95c3d31a709b88b581ae9bd7761333c8e5375c44b8f6be01768b5a3be901163159d7e6c43b71da59
-EBUILD llvm-10.0.0.ebuild 10579 BLAKE2B 04be48351a56d46e4b13357415364c9d20a5e3e6438ca587a40f1233ffabaeeb14013a03e1794409a80cf9578bed03e93c82baae5ebe82fab7b4a9d141abaab4 SHA512 b4f6e58592423642bc570e57112b80a2c3b5abee66118333fff8bb06e5c7bb447b6636d73c304ab424d2caf842ef709db846aa8758eb7b72d0253e7e4b979b6d
-EBUILD llvm-10.0.1.9999.ebuild 12448 BLAKE2B 8a548c876a5875cdb65094283ac71ea950466b4b9166d29b011f567a31039341ed6925551f4ebeb820a2cf768dab20bd20517a8733a711ad323c2c6b881d96bb SHA512 f675453ee5416e9191ca3a93fb98652bfa52750130c6d096bdfb0dd888e7e3b3b5d7de7598cd784441edef942ff056016ca8c26c4e07ac9af1ce800e889dfbf0
-EBUILD llvm-10.0.1_rc1.ebuild 11455 BLAKE2B 50602dcd5bea578a0f0cf4525cf8a83d381c3cfc71f639a90d686ffef95866842eb99a080aa0da0ee7cebdae2a6fa5e4c38dbedb684ad427dbcdc4e3931cba1e SHA512 0f006aaa87fe9aff85a8b2b18423dde7b1355b8b3ae240094c626930c8131312f358edf7a447f359aee1e404acd92d92013a8cc3850657108f2dbd35414529fa
-EBUILD llvm-11.0.0.9999.ebuild 12249 BLAKE2B a811f27eb484b31f8cccba5432ec608be0e0b3fec02039fb89e0f585643128625846a90ef34fe566a493c1adf30e6707a42ee048df7b34eba9b2a9a895adc912 SHA512 e62dbebe58acaecfcd200af5ed68dfb853a28723e1c880769d0ada60478ea84d4abfc04e1e3af153383c5a3ff970d6e0371468b255b14d9a2d6ab2b099720d2f
+EBUILD llvm-10.0.0.ebuild 10755 BLAKE2B a9cd0916e9d9f750d4d004759dce1208643fc032e07a6642aa796a2fe432578e1866a8e3f879265895268ebe49a740f16df2dec5c95d06fbc0c5f4aecec84d2f SHA512 e224360bda7a170db324ecc797db08df22e3c12426d4445edba11a2ec811024688166dd8faf7ee6ddfac317abf8f1d72da433c15aaff44ab282508c4245eccfe
+EBUILD llvm-10.0.1.9999.ebuild 12625 BLAKE2B b3a38bdaf43ff15935f928cf75b664f80b038f5bfaf8e3a87c417fa73ec0098b03b341d0dbb757333b9bd692f23708bf74dcf2ee0861062181dd88015389b655 SHA512 5fc03257797fdc6b0ec3a254a4ca51ac9ac3df1abd777a5b37c8eb44189d37d51def4c243824ccee878f73efc64e43d5d2a9e651cf3b764a3ba786e620a4dacc
+EBUILD llvm-10.0.1_rc1.ebuild 11632 BLAKE2B f335286bf86b9c18b7d219a65b3ed54d47676939323fda1b420943da2deab141bc43d80bed9d83aea48824eaec15438d07854964a5a7db3ac41e4034b079623e SHA512 e9dede97e3d9d755fd518cf6bb7296bacd738a85e23abcadc4487abeb3ab4f7e380187c27114e0c64c4c0934f0414ca47e9c17e3cd9f317cae0d505ef858f4d0
+EBUILD llvm-10.0.1_rc2.ebuild 11632 BLAKE2B f335286bf86b9c18b7d219a65b3ed54d47676939323fda1b420943da2deab141bc43d80bed9d83aea48824eaec15438d07854964a5a7db3ac41e4034b079623e SHA512 e9dede97e3d9d755fd518cf6bb7296bacd738a85e23abcadc4487abeb3ab4f7e380187c27114e0c64c4c0934f0414ca47e9c17e3cd9f317cae0d505ef858f4d0
+EBUILD llvm-11.0.0.9999.ebuild 12456 BLAKE2B 15e4590aa8a1e9ee8a1c0fa65415802bf723725ecbc8ddd34a27a7c6d833d513ed8937268d3e004ee7afc2a1722302f72ed107ad1d714d789fb2191f83471155 SHA512 8a4348c9d61e06b069db1a09ee8ed6996d6875269a87ab1415d0eab23917eec3865dbb190352c813daaad620d7bd0c67d22cfac8818b329bc246af241cac74b2
 EBUILD llvm-8.0.1.ebuild 8423 BLAKE2B 229579ed2cd28987476612666617c61af49760ace9b4664a4419f2518990666d88a2c234d55f7f9c89d04e4a107b34cad50ce7866e4fa944829b0eb3f7473a2b SHA512 307e04c4dac29e8b3fef2a422d231883883384b23fc9d54c8f5f9e69b9f40fb3ea7950651cc15938e0ea92a12413db67996b87b59ec88cf3ba4661b6099602e7
 EBUILD llvm-9.0.1.ebuild 8454 BLAKE2B 33b4c7bdf4bc136d29f3f6f505799b11de31d33e393b51c9bafb121b0b8b347e86a5954ba6ba039cd6b39cb7c1a501d4747f51652351559c42ba0b84c4bae54b SHA512 f43a600265c1559e924a6f2ec97dffdacfae35df2cc3e3e874704c5ae179ba48d90fdd666411cdab500d171fa63b557538282545c7c4078867857e077c941a4c
 MISC metadata.xml 2563 BLAKE2B ca85030788fb213fc891d895238fd75562cdd25cc5fe4271d709cb1c00ef56b0e8b367dc70cc18f7d185d6fbdb57333e219a984220b60141d28fb4784b2cb94a SHA512 8de68ee7f964e6eb2613bd2ff584f834e0f5a3ae8b303b5f2f10fda718a87af9b8ddfc19399950fe4eb8be515930124ced8018190af0f69da7ec5fe8180a68a2
diff --git a/sys-devel/llvm/llvm-10.0.0.ebuild b/sys-devel/llvm/llvm-10.0.0.ebuild
index c36aefaa55f3..d5dfa7b4da31 100644
--- a/sys-devel/llvm/llvm-10.0.0.ebuild
+++ b/sys-devel/llvm/llvm-10.0.0.ebuild
@@ -31,7 +31,7 @@ ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 
 LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA BSD public-domain rc"
 SLOT="$(ver_cut 1)"
-KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
+KEYWORDS="amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
 IUSE="debug doc exegesis gold libedit +libffi ncurses test xar xml z3
 	kernel_Darwin ${ALL_LLVM_TARGETS[*]}"
 REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
@@ -344,6 +344,10 @@ multilib_src_configure() {
 		local CXXFLAGS="${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-utils_src_configure
diff --git a/sys-devel/llvm/llvm-10.0.1.9999.ebuild b/sys-devel/llvm/llvm-10.0.1.9999.ebuild
index 6bf2a545f962..0cbd220d5637 100644
--- a/sys-devel/llvm/llvm-10.0.1.9999.ebuild
+++ b/sys-devel/llvm/llvm-10.0.1.9999.ebuild
@@ -432,6 +432,10 @@ multilib_src_configure() {
 		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
diff --git a/sys-devel/llvm/llvm-10.0.1_rc1.ebuild b/sys-devel/llvm/llvm-10.0.1_rc1.ebuild
index 5ac7c6e2a8c3..bc805c1b4d35 100644
--- a/sys-devel/llvm/llvm-10.0.1_rc1.ebuild
+++ b/sys-devel/llvm/llvm-10.0.1_rc1.ebuild
@@ -397,6 +397,10 @@ multilib_src_configure() {
 		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
diff --git a/sys-devel/llvm/llvm-10.0.1_rc2.ebuild b/sys-devel/llvm/llvm-10.0.1_rc2.ebuild
new file mode 100644
index 000000000000..bc805c1b4d35
--- /dev/null
+++ b/sys-devel/llvm/llvm-10.0.1_rc2.ebuild
@@ -0,0 +1,477 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6..9} )
+inherit cmake llvm.org multilib-minimal pax-utils python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="https://llvm.org/"
+LLVM_COMPONENTS=( llvm )
+llvm.org_set_globals
+
+# Those are in lib/Targets, without explicit CMakeLists.txt mention
+ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC AVR )
+# Keep in sync with CMakeLists.txt
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore
+	"${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}" )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+
+# 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="$(ver_cut 1)"
+KEYWORDS=""
+IUSE="debug doc exegesis gold libedit +libffi ncurses test xar xml z3
+	kernel_Darwin ${ALL_LLVM_TARGETS[*]}"
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	sys-libs/zlib:0=[${MULTILIB_USEDEP}]
+	exegesis? ( dev-libs/libpfm:= )
+	gold? (
+		|| (
+			>=sys-devel/binutils-2.31.1-r4:*[plugins]
+			<sys-devel/binutils-2.31.1-r4:*[cxx]
+		)
+	)
+	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=[${MULTILIB_USEDEP}] )"
+DEPEND="${RDEPEND}
+	gold? ( sys-libs/binutils-libs )"
+BDEPEND="
+	dev-lang/perl
+	sys-devel/gnuconfig
+	kernel_Darwin? (
+		<sys-libs/libcxx-$(ver_cut 1-3).9999
+		>=sys-devel/binutils-apple-5.1
+	)
+	libffi? ( virtual/pkgconfig )
+	$(python_gen_any_dep '
+		dev-python/sphinx[${PYTHON_USEDEP}]
+		doc? ( dev-python/recommonmark[${PYTHON_USEDEP}] )
+	')"
+# There are no file collisions between these versions but having :0
+# installed means llvm-config there will take precedence.
+RDEPEND="${RDEPEND}
+	!sys-devel/llvm:0"
+PDEPEND="sys-devel/llvm-common
+	gold? ( >=sys-devel/llvmgold-${SLOT} )"
+
+PATCHES=(
+	# Fix linking to dylib and .a libs simultaneously
+	"${FILESDIR}"/10.0.1/0001-llvm-Avoid-linking-llvm-cfi-verify-to-duplicate-libs.patch
+	"${FILESDIR}"/10.0.1/0002-llvm-Disable-linking-llvm-exegesis-to-dylib.patch
+)
+
+python_check_deps() {
+	if use doc; then
+		has_version -b "dev-python/recommonmark[${PYTHON_USEDEP}]" ||
+			return 1
+	fi
+	has_version -b "dev-python/sphinx[${PYTHON_USEDEP}]"
+}
+
+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 ${l} in
+					# shared libs
+					LLVM|LLVMgold)
+						;;
+					# TableGen lib + deps
+					LLVMDemangle|LLVMSupport|LLVMTableGen)
+						;;
+					# static libs
+					LLVM*)
+						continue
+						;;
+					# meta-targets
+					distribution|llvm-libraries)
+						continue
+						;;
+					# used only w/ USE=doc
+					docs-llvm-html)
+						continue
+						;;
+				esac
+
+				all_targets+=( "${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: ${remove[*]}"
+		fi
+		cd - >/dev/null || die
+	fi
+}
+
+src_prepare() {
+	# Fix llvm-config for shared linking and sane flags
+	# https://bugs.gentoo.org/show_bug.cgi?id=565358
+	eapply "${FILESDIR}"/9999/0007-llvm-config-Clean-up-exported-values-update-for-shar.patch
+
+	# 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 "${BROOT}/usr/share/gnuconfig/config.guess" cmake/ || die
+
+	# manpages don't use markdown
+	if ! use doc; then
+		sed -i -e '/source_parsers/d' docs/conf.py || die
+	fi
+
+	llvm.org_src_prepare
+}
+
+# Is LLVM being linked against libc++?
+is_libcxx_linked() {
+	local code='#include <ciso646>
+#if defined(_LIBCPP_VERSION)
+	HAVE_LIBCXX
+#endif
+'
+	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1
+
+	[[ ${out} == *HAVE_LIBCXX* ]]
+}
+
+get_distribution_components() {
+	local sep=${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
+
+			# tools
+			bugpoint
+			dsymutil
+			llc
+			lli
+			lli-child-target
+			llvm-addr2line
+			llvm-ar
+			llvm-as
+			llvm-bcanalyzer
+			llvm-c-test
+			llvm-cat
+			llvm-cfi-verify
+			llvm-config
+			llvm-cov
+			llvm-cvtres
+			llvm-cxxdump
+			llvm-cxxfilt
+			llvm-cxxmap
+			llvm-diff
+			llvm-dis
+			llvm-dlltool
+			llvm-dwarfdump
+			llvm-dwp
+			llvm-elfabi
+			llvm-exegesis
+			llvm-extract
+			llvm-ifs
+			llvm-install-name-tool
+			llvm-jitlink
+			llvm-lib
+			llvm-link
+			llvm-lipo
+			llvm-lto
+			llvm-lto2
+			llvm-mc
+			llvm-mca
+			llvm-modextract
+			llvm-mt
+			llvm-nm
+			llvm-objcopy
+			llvm-objdump
+			llvm-opt-report
+			llvm-pdbutil
+			llvm-profdata
+			llvm-ranlib
+			llvm-rc
+			llvm-readelf
+			llvm-readobj
+			llvm-reduce
+			llvm-rtdyld
+			llvm-size
+			llvm-split
+			llvm-stress
+			llvm-strings
+			llvm-strip
+			llvm-symbolizer
+			llvm-undname
+			llvm-xray
+			obj2yaml
+			opt
+			sancov
+			sanstats
+			verify-uselistorder
+			yaml2obj
+
+			# python modules
+			opt-viewer
+
+			# manpages
+			docs-dsymutil-man
+			docs-llvm-dwarfdump-man
+			docs-llvm-man
+		)
+		use doc && out+=(
+			docs-llvm-html
+		)
+
+		use gold && out+=(
+			LLVMgold
+		)
+	fi
+
+	printf "%s${sep}" "${out[@]}"
+}
+
+multilib_src_configure() {
+	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/${SLOT}"
+		-DLLVM_LIBDIR_SUFFIX=${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_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_HOST_TRIPLE="${CHOST}"
+
+		-DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
+		-DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
+		# used only for llvm-objdump tool
+		-DHAVE_LIBXAR=$(multilib_native_usex xar 1 0)
+
+		# disable OCaml bindings (now in dev-ml/llvm-ocaml)
+		-DOCAMLFIND=NO
+	)
+
+	if is_libcxx_linked; 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.
+		mycmakeargs+=(
+			-DLLVM_VERSION_SUFFIX="libcxx"
+		)
+	fi
+
+#	Note: go bindings have no CMake rules at the moment
+#	but let's kill the check in case they are introduced
+#	if ! multilib_is_native_abi || ! use go; then
+		mycmakeargs+=(
+			-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
+		)
+#	fi
+
+	use test && mycmakeargs+=(
+		-DLLVM_LIT_ARGS="$(get_lit_flags)"
+	)
+
+	if multilib_is_native_abi; then
+		mycmakeargs+=(
+			-DLLVM_BUILD_DOCS=ON
+			-DLLVM_ENABLE_OCAMLDOC=OFF
+			-DLLVM_ENABLE_SPHINX=ON
+			-DLLVM_ENABLE_DOXYGEN=OFF
+			-DLLVM_INSTALL_UTILS=ON
+			-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
+			-DLLVM_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
+			-DSPHINX_WARNINGS_AS_ERRORS=OFF
+		)
+		use gold && mycmakeargs+=(
+			-DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
+		)
+	fi
+
+	if tc-is-cross-compiler; then
+		local tblgen="${EPREFIX}/usr/lib/llvm/${SLOT}/bin/llvm-tblgen"
+		[[ -x "${tblgen}" ]] \
+			|| die "${tblgen} not found or usable"
+		mycmakeargs+=(
+			-DCMAKE_CROSSCOMPILING=ON
+			-DLLVM_TABLEGEN="${tblgen}"
+		)
+	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="${CPPFLAGS} -DNDEBUG"
+	cmake_src_configure
+
+	multilib_is_native_abi && check_distribution_components
+}
+
+multilib_src_compile() {
+	cmake_src_compile
+
+	pax-mark m "${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 "${BUILD_DIR}"/unittests/Support/SupportTests
+	fi
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check
+}
+
+src_install() {
+	local MULTILIB_CHOST_TOOLS=(
+		/usr/lib/llvm/${SLOT}/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/${SLOT}/include || die
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-distribution
+
+	# move headers to /usr/include for wrapping
+	rm -rf "${ED}"/usr/include || die
+	mv "${ED}"/usr/lib/llvm/${SLOT}/include "${ED}"/usr/include || die
+
+	LLVM_LDPATHS+=( "${EPREFIX}/usr/lib/llvm/${SLOT}/$(get_libdir)" )
+}
+
+multilib_src_install_all() {
+	local revord=$(( 9999 - ${SLOT} ))
+	newenvd - "60llvm-${revord}" <<-_EOF_
+		PATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
+		# we need to duplicate it in ROOTPATH for Portage to respect...
+		ROOTPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/bin"
+		MANPATH="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
+		LDPATH="$( IFS=:; echo "${LLVM_LDPATHS[*]}" )"
+	_EOF_
+
+	docompress "/usr/lib/llvm/${SLOT}/share/man"
+}
+
+pkg_postinst() {
+	elog "You can find additional opt-viewer utility scripts in:"
+	elog "  ${EROOT}/usr/lib/llvm/${SLOT}/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)"
+}
diff --git a/sys-devel/llvm/llvm-11.0.0.9999.ebuild b/sys-devel/llvm/llvm-11.0.0.9999.ebuild
index e005e516f322..08addcf459df 100644
--- a/sys-devel/llvm/llvm-11.0.0.9999.ebuild
+++ b/sys-devel/llvm/llvm-11.0.0.9999.ebuild
@@ -183,7 +183,9 @@ src_prepare() {
 
 	# manpages don't use markdown
 	if ! use doc; then
-		sed -i -e '/source_parsers/d' docs/conf.py || die
+		sed -e "s:, 'recommonmark'::" \
+			-e '/markdown/d' \
+			-i docs/conf.py || die
 	fi
 
 	# Verify that the live ebuild is up-to-date
@@ -428,6 +430,10 @@ multilib_src_configure() {
 		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