gentoo auto-resync : 10:06:2023 - 15:51:39

17 files changed, 998 insertions, 143 deletions

diff --git a/sys-libs/Manifest.gz b/sys-libs/Manifest.gz
index 0600c78088eb..9f9b0d4e60d4 100644
--- a/sys-libs/Manifest.gz
+++ b/sys-libs/Manifest.gz
diff --git a/sys-libs/compiler-rt-sanitizers/Manifest b/sys-libs/compiler-rt-sanitizers/Manifest
index 473d4e5a7830..cef41e388ca5 100644
--- a/sys-libs/compiler-rt-sanitizers/Manifest
+++ b/sys-libs/compiler-rt-sanitizers/Manifest
@@ -10,6 +10,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD compiler-rt-sanitizers-14.0.6.ebuild 6526 BLAKE2B 371b7d7bfbcacce1c04cf039b15f49bf5c8fb7de0352c4f477b92d1efe0c70442770ec0c6b60572cf5877b5c14492328cf727b2aa5c1dea761eb909aa1e1df6c SHA512 ee1f054abb9954eedd5b098afb1eb741cd2d7b1b329ef66ed3f25f8ed050227a31925852e3d893b0a9913e2ef2ac34efe89c66c19b562c586f7c0352a10a5814
@@ -21,4 +22,5 @@ EBUILD compiler-rt-sanitizers-16.0.5.ebuild 6550 BLAKE2B a3d856b59f3ad6ce433952a
 EBUILD compiler-rt-sanitizers-17.0.0.9999.ebuild 6249 BLAKE2B 036338e02f018bd9cb01036851fcee5af58f012e15c4fcb55a207e519d2b553e83f2871869681055a9c672b091126e95d52a1c50a605a94e27b866b22dd64732 SHA512 94a1deb4cbba26d0e1aa02333c2d3375349b059e1fe75f26368ab54d13b276c27ea377f4cce9b1cdf0a508add5ddae4886a59bbb24cd8bec61a7e5d03660746c
 EBUILD compiler-rt-sanitizers-17.0.0_pre20230526.ebuild 6249 BLAKE2B 036338e02f018bd9cb01036851fcee5af58f012e15c4fcb55a207e519d2b553e83f2871869681055a9c672b091126e95d52a1c50a605a94e27b866b22dd64732 SHA512 94a1deb4cbba26d0e1aa02333c2d3375349b059e1fe75f26368ab54d13b276c27ea377f4cce9b1cdf0a508add5ddae4886a59bbb24cd8bec61a7e5d03660746c
 EBUILD compiler-rt-sanitizers-17.0.0_pre20230602.ebuild 6249 BLAKE2B 036338e02f018bd9cb01036851fcee5af58f012e15c4fcb55a207e519d2b553e83f2871869681055a9c672b091126e95d52a1c50a605a94e27b866b22dd64732 SHA512 94a1deb4cbba26d0e1aa02333c2d3375349b059e1fe75f26368ab54d13b276c27ea377f4cce9b1cdf0a508add5ddae4886a59bbb24cd8bec61a7e5d03660746c
+EBUILD compiler-rt-sanitizers-17.0.0_pre20230609.ebuild 6249 BLAKE2B 036338e02f018bd9cb01036851fcee5af58f012e15c4fcb55a207e519d2b553e83f2871869681055a9c672b091126e95d52a1c50a605a94e27b866b22dd64732 SHA512 94a1deb4cbba26d0e1aa02333c2d3375349b059e1fe75f26368ab54d13b276c27ea377f4cce9b1cdf0a508add5ddae4886a59bbb24cd8bec61a7e5d03660746c
 MISC metadata.xml 1412 BLAKE2B 75675507000fa6a6b8182e6b45a08a2716ae7fb9a7e3428dc8420464e4c1d1bdb5bea62cc2f553c579de5a4faa752b35cb3529d980fb07a055ff4ddf6e752707 SHA512 f05ea5168b923db72f4f5b53e9b748ebbcdae9eff09d86323313055933b47fc0089e1b2d73cd997d73dcfb2dca032344955816425fbddc09d27ca751463aadbb
diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-17.0.0_pre20230609.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..f3ca3131c8d6
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-17.0.0_pre20230609.ebuild
@@ -0,0 +1,216 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit check-reqs cmake flag-o-matic llvm llvm.org python-any-r1
+
+DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="${LLVM_MAJOR}"
+KEYWORDS=""
+IUSE="+abi_x86_32 abi_x86_64 +clang +debug test"
+# base targets
+IUSE+=" +libfuzzer +memprof +orc +profile +xray"
+# sanitizer targets, keep in sync with config-ix.cmake
+# NB: ubsan, scudo deliberately match two entries
+SANITIZER_FLAGS=(
+	asan dfsan lsan msan hwasan tsan ubsan safestack cfi scudo
+	shadowcallstack gwp-asan
+)
+IUSE+=" ${SANITIZER_FLAGS[@]/#/+}"
+REQUIRED_USE="
+	|| ( ${SANITIZER_FLAGS[*]} libfuzzer orc profile xray )
+	test? (
+		cfi? ( ubsan )
+		gwp-asan? ( scudo )
+	)
+"
+RESTRICT="
+	!clang? ( test )
+	!test? ( test )
+"
+
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+	virtual/libcrypt[abi_x86_32(-)?,abi_x86_64(-)?]
+"
+BDEPEND="
+	>=dev-util/cmake-3.16
+	clang? ( sys-devel/clang )
+	elibc_glibc? ( net-libs/libtirpc )
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+		sys-libs/compiler-rt:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+LLVM_TEST_COMPONENTS=( llvm/lib/Testing/Support third-party )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]"
+}
+
+check_space() {
+	if use test; then
+		local CHECKREQS_DISK_BUILD=11G
+		check-reqs_pkg_pretend
+	fi
+}
+
+pkg_pretend() {
+	check_space
+}
+
+pkg_setup() {
+	check_space
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	sed -i -e 's:-Werror::' lib/tsan/go/buildgo.sh || die
+
+	local flag
+	for flag in "${SANITIZER_FLAGS[@]}"; do
+		if ! use "${flag}"; then
+			local cmake_flag=${flag/-/_}
+			sed -i -e "/COMPILER_RT_HAS_${cmake_flag^^}/s:TRUE:FALSE:" \
+				cmake/config-ix.cmake || die
+		fi
+	done
+
+	# TODO: fix these tests to be skipped upstream
+	if use asan && ! use profile; then
+		rm test/asan/TestCases/asan_and_llvm_coverage_test.cpp || die
+	fi
+	if use ubsan && ! use cfi; then
+		> test/cfi/CMakeLists.txt || die
+	fi
+
+	llvm.org_src_prepare
+}
+
+src_configure() {
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/compiler-rt_build
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	local flag want_sanitizer=OFF
+	for flag in "${SANITIZER_FLAGS[@]}"; do
+		if use "${flag}"; then
+			want_sanitizer=ON
+			break
+		fi
+	done
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_MAJOR}"
+		# use a build dir structure consistent with install
+		# this makes it possible to easily deploy test-friendly clang
+		-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		# builtins & crt installed by sys-libs/compiler-rt
+		-DCOMPILER_RT_BUILD_BUILTINS=OFF
+		-DCOMPILER_RT_BUILD_CRT=OFF
+		-DCOMPILER_RT_BUILD_LIBFUZZER=$(usex libfuzzer)
+		-DCOMPILER_RT_BUILD_MEMPROF=$(usex memprof)
+		-DCOMPILER_RT_BUILD_ORC=$(usex orc)
+		-DCOMPILER_RT_BUILD_PROFILE=$(usex profile)
+		-DCOMPILER_RT_BUILD_SANITIZERS="${want_sanitizer}"
+		-DCOMPILER_RT_BUILD_XRAY=$(usex xray)
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if use amd64; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=$(usex abi_x86_32)
+			-DCAN_TARGET_x86_64=$(usex abi_x86_64)
+		)
+	fi
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+
+			# they are created during src_test()
+			-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_MAJOR}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_MAJOR}/bin/clang++"
+		)
+
+		# same flags are passed for build & tests, so we need to strip
+		# them down to a subset supported by clang
+		CC=${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang \
+		CXX=${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang++ \
+		strip-unsupported-flags
+	fi
+
+	if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
+		mycmakeargs+=(
+			# setting -isysroot is disabled with compiler-rt-prefix-paths.patch
+			# this allows adding arm64 support using SDK in EPREFIX
+			-DDARWIN_macosx_CACHED_SYSROOT="${EPREFIX}/MacOSX.sdk"
+			# Set version based on the SDK in EPREFIX
+			# This disables i386 for SDK >= 10.15
+			# Will error if has_use tsan and SDK < 10.12
+			-DDARWIN_macosx_OVERRIDE_SDK_VERSION="$(realpath ${EPREFIX}/MacOSX.sdk | sed -e 's/.*MacOSX\(.*\)\.sdk/\1/')"
+			# Use our libtool instead of looking it up with xcrun
+			-DCMAKE_LIBTOOL="${EPREFIX}/usr/bin/${CHOST}-libtool"
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local sys_dir=( "${EPREFIX}"/usr/lib/clang/${LLVM_MAJOR}/lib/* )
+		[[ -e ${sys_dir} ]] || die "Unable to find ${sys_dir}"
+		[[ ${#sys_dir[@]} -eq 1 ]] || die "Non-deterministic compiler-rt install: ${sys_dir[*]}"
+
+		# copy clang over since resource_dir is located relatively to binary
+		# therefore, we can put our new libraries in it
+		mkdir -p "${BUILD_DIR}"/lib/{llvm/${LLVM_MAJOR}/{bin,$(get_libdir)},clang/${LLVM_MAJOR}/include} || die
+		cp "${EPREFIX}"/usr/lib/llvm/${LLVM_MAJOR}/bin/clang{,++} \
+			"${BUILD_DIR}"/lib/llvm/${LLVM_MAJOR}/bin/ || die
+		cp "${EPREFIX}"/usr/lib/clang/${LLVM_MAJOR}/include/*.h \
+			"${BUILD_DIR}"/lib/clang/${LLVM_MAJOR}/include/ || die
+		cp "${sys_dir}"/*builtins*.a \
+			"${BUILD_DIR}/lib/clang/${LLVM_MAJOR}/lib/${sys_dir##*/}/" || die
+		# we also need LLVMgold.so for gold-based tests
+		if [[ -f ${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/LLVMgold.so ]]; then
+			ln -s "${EPREFIX}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/LLVMgold.so \
+				"${BUILD_DIR}"/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/ || die
+		fi
+	fi
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	# disable sandbox to have it stop clobbering LD_PRELOAD
+	local -x SANDBOX_ON=0
+	# wipe LD_PRELOAD to make ASAN happy
+	local -x LD_PRELOAD=
+
+	cmake_build check-all
+}
diff --git a/sys-libs/compiler-rt/Manifest b/sys-libs/compiler-rt/Manifest
index 81f7f8b9efe8..23746ff24ea5 100644
--- a/sys-libs/compiler-rt/Manifest
+++ b/sys-libs/compiler-rt/Manifest
@@ -10,6 +10,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD compiler-rt-14.0.6-r1.ebuild 4248 BLAKE2B 56b00f1c57cdaf1cd6dd7f15e13c714461001c0c2fb25e565c1677745e3fe6e61714e2f037814fef3eb32ef6866d517c391cb5f63c852ed132d74b1b5b7ef393 SHA512 31cd40fe6c58a6a653d36e99586230c7686ccb2bcdfa1c8ead4331dec2fd8dc53afc2a1e9bdf165dc5b4f7580c8cd25bc7a68acfa9c881fd775187bd82e28f11
@@ -21,4 +22,5 @@ EBUILD compiler-rt-16.0.5.ebuild 4244 BLAKE2B b4fa336d5147d1f452cfe2d423d86a7d3c
 EBUILD compiler-rt-17.0.0.9999.ebuild 4166 BLAKE2B cd26aafb9d796d914dd260347378d57ae3e94594a9f204a866bdd3ad261794c0b04e7caff1d0182fb9f4e462dbbc15132106c0118dfdec9b61adce7732da40d7 SHA512 68218eef7361276b938f7b3d5e44483337bdcd988c7dc8abccfa8b56501b6e8cfb6395b6054bbc69972cc3d5b238627ade3715bf9d9853f43b0e1152d6fee41a
 EBUILD compiler-rt-17.0.0_pre20230526.ebuild 4166 BLAKE2B cd26aafb9d796d914dd260347378d57ae3e94594a9f204a866bdd3ad261794c0b04e7caff1d0182fb9f4e462dbbc15132106c0118dfdec9b61adce7732da40d7 SHA512 68218eef7361276b938f7b3d5e44483337bdcd988c7dc8abccfa8b56501b6e8cfb6395b6054bbc69972cc3d5b238627ade3715bf9d9853f43b0e1152d6fee41a
 EBUILD compiler-rt-17.0.0_pre20230602.ebuild 4166 BLAKE2B cd26aafb9d796d914dd260347378d57ae3e94594a9f204a866bdd3ad261794c0b04e7caff1d0182fb9f4e462dbbc15132106c0118dfdec9b61adce7732da40d7 SHA512 68218eef7361276b938f7b3d5e44483337bdcd988c7dc8abccfa8b56501b6e8cfb6395b6054bbc69972cc3d5b238627ade3715bf9d9853f43b0e1152d6fee41a
+EBUILD compiler-rt-17.0.0_pre20230609.ebuild 4166 BLAKE2B cd26aafb9d796d914dd260347378d57ae3e94594a9f204a866bdd3ad261794c0b04e7caff1d0182fb9f4e462dbbc15132106c0118dfdec9b61adce7732da40d7 SHA512 68218eef7361276b938f7b3d5e44483337bdcd988c7dc8abccfa8b56501b6e8cfb6395b6054bbc69972cc3d5b238627ade3715bf9d9853f43b0e1152d6fee41a
 MISC metadata.xml 416 BLAKE2B 79a58249c94b605ba57f346c4e05b43853cf6cfb8bb65a4f4e3c44039cccfdb83dd31bfaaaf398bcbdc393efabdfc7ed186fe775976c46227e74decf2c8f4fb2 SHA512 ce30c79a575e5933effb1fec36f9a4ef02d9f97f312feb39c55a88cbda9a1bae1d7af2ec4ad5f66212cbb2cdbfb26f1a436689f16f410153c9d65eb010264c48
diff --git a/sys-libs/compiler-rt/compiler-rt-17.0.0_pre20230609.ebuild b/sys-libs/compiler-rt/compiler-rt-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..5bb8f9d050ac
--- /dev/null
+++ b/sys-libs/compiler-rt/compiler-rt-17.0.0_pre20230609.ebuild
@@ -0,0 +1,149 @@
+# 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 flag-o-matic llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="Compiler runtime library for clang (built-in part)"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="${LLVM_MAJOR}"
+KEYWORDS=""
+IUSE="+abi_x86_32 abi_x86_64 +clang +debug test"
+RESTRICT="!test? ( test ) !clang? ( test )"
+
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	>=dev-util/cmake-3.16
+	clang? ( sys-devel/clang )
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]"
+}
+
+pkg_pretend() {
+	if ! use clang && ! tc-is-clang; then
+		ewarn "Building using a compiler other than clang may result in broken atomics"
+		ewarn "library. Enable USE=clang unless you have a very good reason not to."
+	fi
+}
+
+pkg_setup() {
+	# Darwin Prefix builds do not have llvm installed yet, so rely on
+	# bootstrap-prefix to set the appropriate path vars to LLVM instead
+	# of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version sys-devel/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+test_compiler() {
+	$(tc-getCC) ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
+		<<<'int main() { return 0; }' &>/dev/null
+}
+
+src_configure() {
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/${P}_build
+
+	if use clang; then
+		# Only do this conditionally to allow overriding with
+		# e.g. CC=clang-13 in case of breakage
+		if ! tc-is-clang ; then
+			local -x CC=${CHOST}-clang
+			local -x CXX=${CHOST}-clang++
+		fi
+
+		strip-unsupported-flags
+	fi
+
+	if ! test_compiler; then
+		local nolib_flags=( -nodefaultlibs -lc )
+
+		if test_compiler "${nolib_flags[@]}"; then
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
+		elif test_compiler "${nolib_flags[@]}" -nostartfiles; then
+			# Avoiding -nostartfiles earlier on for bug #862540,
+			# and set available entry symbol for bug #862798.
+			nolib_flags+=( -nostartfiles -emain )
+
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		-DCOMPILER_RT_BUILD_LIBFUZZER=OFF
+		-DCOMPILER_RT_BUILD_MEMPROF=OFF
+		-DCOMPILER_RT_BUILD_ORC=OFF
+		-DCOMPILER_RT_BUILD_PROFILE=OFF
+		-DCOMPILER_RT_BUILD_SANITIZERS=OFF
+		-DCOMPILER_RT_BUILD_XRAY=OFF
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if use amd64; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=$(usex abi_x86_32)
+			-DCAN_TARGET_x86_64=$(usex abi_x86_64)
+		)
+	fi
+
+	if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
+		mycmakeargs+=(
+			# setting -isysroot is disabled with compiler-rt-prefix-paths.patch
+			# this allows adding arm64 support using SDK in EPREFIX
+			-DDARWIN_macosx_CACHED_SYSROOT="${EPREFIX}/MacOSX.sdk"
+			# Set version based on the SDK in EPREFIX.
+			# This disables i386 for SDK >= 10.15
+			-DDARWIN_macosx_OVERRIDE_SDK_VERSION="$(realpath ${EPREFIX}/MacOSX.sdk | sed -e 's/.*MacOSX\(.*\)\.sdk/\1/')"
+			# Use our libtool instead of looking it up with xcrun
+			-DCMAKE_LIBTOOL="${EPREFIX}/usr/bin/${CHOST}-libtool"
+		)
+	fi
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+
+			-DCOMPILER_RT_TEST_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang++"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-builtins
+}
diff --git a/sys-libs/libblockdev/Manifest b/sys-libs/libblockdev/Manifest
index e151b72bef65..0594097dbb59 100644
--- a/sys-libs/libblockdev/Manifest
+++ b/sys-libs/libblockdev/Manifest
@@ -1,6 +1,5 @@
 AUX libblockdev-2.28-sh_tests.patch 1552 BLAKE2B 3b26cf271a0cb2a0f51ecffe51c9caf9a0ac1c65aecb5adc845a2721f3ac7178df7c994b7647b4fa1bbfd27baf072325bffedf723555c39e164f7d7645163090 SHA512 11fc498db4ed1d3a9e5a9288e1137d64f7581cc7b2d265292f7a3899ef5cfc6d63138fef7f87695abd9d518fa1c74a8bd98ebb54038211eeb0afe7964d85c6c4
 DIST libblockdev-2.28.tar.gz 925698 BLAKE2B 63ac7ab5bd02c1ef1848d0b252e09fe721cfe86258f063b7bab616766cbc56311707dcb2dd3a1fadf0e0840187f121aa178fd5959500cd590b846238a9d3e36e SHA512 9e01c41db4f728c8e81e710c6bb4725bbe34b3a7de25ff7f57b7b88ca6b7b5debbe858947585d314770036b2c3c533f9f8ff3d038b7ca50eee3d18f9fbe0d392
 EBUILD libblockdev-2.28-r1.ebuild 3000 BLAKE2B 3aa70b52c0e0ff70de8b7f471d5fcaf8c7f99bc6a18a32ef0b714eb249c83186e0f85bce6c70c48bab906a6e62e76ca94293459042aea54dbfe6887b1371d765 SHA512 834a2bc93c7d9818132d4da6607e5259e79d2fe29e01dfd14881815a11d3ca116596d0d2e788af99a9ccb955731c4b9fb8c4f9ea51e17b81d20f0e3666036625
-EBUILD libblockdev-2.28.ebuild 2946 BLAKE2B 32bdefce84fc6146b8f03c8889c56c9e25478949071de9e16658ff0535262a3dc8991bd453624676899de2c9e4e9ed49f7a0514fb702417621ddc6b552f59939 SHA512 820425866314934210469b6154c99a932330421d382246b23baea433a39f773b4ca51756564a74f496d5ca0f45b9409e51b42cd18efb94e94abbd0d434b14940
 EBUILD libblockdev-9999.ebuild 2733 BLAKE2B b7dd95006279e4717687664c9fa6cff563cb0ff1b8500c0b962742c9b8a440ba51f2e4550cf251a3608c77c17d5bc7f8343372a89052d034b1801e91988044fe SHA512 e0b750ff1819f6de9500855ee87ca55287b7fff6266eda78f9f3c5cc35bb2ea10d2b1d894a8fad90003669144ae10ef533207a3af175aa456849696285792f94
 MISC metadata.xml 1233 BLAKE2B 68512209e8f458b5b52a9d82eb86c1c831837681b2976d5050c578c3b3fdb032640c4cc99da9621aae7c061ae8332825ea5010a8f1138fbbbc34e92fccbeddeb SHA512 eb47faef934a8eafe1beeea6f901ddd6b0e7202823f57b3848f6ef131b2a5ffc968740d980a68163696d3de34a98ebef8561e63d26ffe213a42e1022577a9270
diff --git a/sys-libs/libblockdev/libblockdev-2.28.ebuild b/sys-libs/libblockdev/libblockdev-2.28.ebuild
deleted file mode 100644
index b8a106eed80b..000000000000
--- a/sys-libs/libblockdev/libblockdev-2.28.ebuild
+++ /dev/null
@@ -1,132 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{9..11} )
-inherit autotools python-single-r1 xdg-utils
-
-DESCRIPTION="A library for manipulating block devices"
-HOMEPAGE="https://github.com/storaged-project/libblockdev"
-if [[ "${PV}" == *9999 ]] ; then
-	inherit git-r3
-	EGIT_REPO_URI="https://github.com/storaged-project/libblockdev.git"
-	BDEPEND="
-		sys-devel/autoconf-archive
-	"
-else
-	MY_PV="${PV}-1"
-	SRC_URI="https://github.com/storaged-project/${PN}/releases/download/${MY_PV}/${P}.tar.gz"
-	KEYWORDS="~alpha amd64 arm arm64 ~ia64 ~loong ~mips ppc ppc64 ~riscv sparc x86"
-fi
-LICENSE="LGPL-2+"
-SLOT="0"
-IUSE="bcache +cryptsetup device-mapper dmraid escrow gtk-doc introspection lvm kbd test +tools vdo"
-# Tests require root. In a future release, we may be able to run a smaller
-# subset with new run_tests.py arguments.
-RESTRICT="!test? ( test ) test"
-
-RDEPEND="
-	>=dev-libs/glib-2.42.2
-	dev-libs/libbytesize
-	>=sys-apps/kmod-19
-	>=sys-apps/util-linux-2.27
-	>=sys-block/parted-3.1
-	cryptsetup? (
-		escrow? (
-			>=dev-libs/nss-3.18.0
-			dev-libs/volume_key
-		)
-		>=sys-fs/cryptsetup-1.6.7:=
-	)
-	device-mapper? ( sys-fs/lvm2 )
-	dmraid? (
-		sys-fs/dmraid
-		sys-fs/lvm2
-	)
-	lvm? (
-		sys-fs/lvm2
-		virtual/udev
-	)
-	vdo? ( dev-libs/libyaml )
-	${PYTHON_DEPS}
-"
-
-DEPEND="
-	${RDEPEND}
-"
-
-# TODO: relax libbytesize condition once it has gained py3.11 support
-BDEPEND+="
-	dev-util/gtk-doc-am
-	gtk-doc? ( dev-util/gtk-doc )
-	introspection? ( >=dev-libs/gobject-introspection-1.3.0 )
-	test? (
-		$(python_gen_cond_dep '
-			dev-libs/libbytesize[python,${PYTHON_USEDEP}]
-		' python3_{8..10} )
-		sys-block/targetcli-fb
-	)
-"
-
-REQUIRED_USE="${PYTHON_REQUIRED_USE}
-		escrow? ( cryptsetup )"
-
-pkg_setup() {
-	python-single-r1_pkg_setup
-}
-
-src_prepare() {
-	xdg_environment_reset #623992
-	default
-
-	# https://bugs.gentoo.org/744289
-	find -type f \( -name "Makefile.am" -o -name "configure.ac" \) -print0 \
-		| xargs --null sed "s@ -Werror@@" -i || die
-
-	eautoreconf
-}
-
-src_configure() {
-	local myeconfargs=(
-		--with-btrfs
-		--with-fs
-		--with-part
-		--with-python3
-		--without-mpath
-		--without-nvdimm
-		--without-python2
-		$(use_enable introspection)
-		$(use_enable test tests)
-		$(use_with bcache)
-		$(use_with cryptsetup crypto)
-		$(use_with device-mapper dm)
-		$(use_with dmraid)
-		$(use_with escrow)
-		$(use_with gtk-doc)
-		$(use_with kbd)
-		$(use_with lvm lvm)
-		$(use_with lvm lvm-dbus)
-		$(use_with tools)
-		$(use_with vdo)
-	)
-	econf "${myeconfargs[@]}"
-}
-
-src_test() {
-	# See http://storaged.org/libblockdev/ch03.html
-	# The 'check' target just does Pylint.
-	# ... but it needs root.
-	emake test
-}
-
-src_install() {
-	default
-	find "${ED}" -type f -name "*.la" -delete || die
-	# This is installed even with USE=-lvm, but libbd_lvm are omitted so it
-	# doesn't work at all.
-	if ! use lvm ; then
-		rm -f "${ED}"/usr/bin/lvm-cache-stats || die
-	fi
-	python_optimize #718576
-}
diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index c8dec63888cf..d49603741dc8 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -10,6 +10,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD libcxx-14.0.6.ebuild 6949 BLAKE2B 963ece6dbc81f876b8894dd2be0ab4fd5e555dcd09feaf014e30411150f43c9f401910741ded4ecaa05d35f0a2bcf3eb7ce519d4019f464075c31db0c9b6523c SHA512 4c73189a6b719bb10527000b30b83c8811aa462d51bc51bd5b2ff703184e01d8805f0b998479116a39e878ef7486c14e2bfef62bd62b1a20718906eb778a0228
@@ -22,4 +23,5 @@ EBUILD libcxx-16.0.5.ebuild 5294 BLAKE2B 83f9a04af5773a5dcf9f0ba430684e2527695b9
 EBUILD libcxx-17.0.0.9999.ebuild 5239 BLAKE2B 397730a8caf3ca40b19225c6742bc885608d0ed93b04857992564c5040d2bc2196718b0372b497289616d1b334fca9b5e48b1a87604618a4435570df67bf2db0 SHA512 0f6d63282362faf2e845d65ec7f027d38d4d7fc84bfcb4302951cfe279504742f28404da2286f9c5a7439f56a07c20912bfad9d43a42b5a17e9a8b141b06805b
 EBUILD libcxx-17.0.0_pre20230526.ebuild 5239 BLAKE2B 397730a8caf3ca40b19225c6742bc885608d0ed93b04857992564c5040d2bc2196718b0372b497289616d1b334fca9b5e48b1a87604618a4435570df67bf2db0 SHA512 0f6d63282362faf2e845d65ec7f027d38d4d7fc84bfcb4302951cfe279504742f28404da2286f9c5a7439f56a07c20912bfad9d43a42b5a17e9a8b141b06805b
 EBUILD libcxx-17.0.0_pre20230602.ebuild 5239 BLAKE2B 397730a8caf3ca40b19225c6742bc885608d0ed93b04857992564c5040d2bc2196718b0372b497289616d1b334fca9b5e48b1a87604618a4435570df67bf2db0 SHA512 0f6d63282362faf2e845d65ec7f027d38d4d7fc84bfcb4302951cfe279504742f28404da2286f9c5a7439f56a07c20912bfad9d43a42b5a17e9a8b141b06805b
+EBUILD libcxx-17.0.0_pre20230609.ebuild 5239 BLAKE2B 397730a8caf3ca40b19225c6742bc885608d0ed93b04857992564c5040d2bc2196718b0372b497289616d1b334fca9b5e48b1a87604618a4435570df67bf2db0 SHA512 0f6d63282362faf2e845d65ec7f027d38d4d7fc84bfcb4302951cfe279504742f28404da2286f9c5a7439f56a07c20912bfad9d43a42b5a17e9a8b141b06805b
 MISC metadata.xml 718 BLAKE2B 3cc1e43a6f1ada368cfc0bf8aaf49007f6792062b684ab9299b5180d778b158325b6931169b52dd14e85ae9ad6dc1a03be323b814fb920fe8434ad86425d699c SHA512 c2cef3e481c0c3db7de6de8c0a5aff42a1e7fe81155d99f1f0f0988f6d5ca041f787a27a2dde0073037d59e082e2f6da7eefe1303f1c1837ebc12e8e0d28729f
diff --git a/sys-libs/libcxx/libcxx-17.0.0_pre20230609.ebuild b/sys-libs/libcxx/libcxx-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..56140d06df64
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-17.0.0_pre20230609.ebuild
@@ -0,0 +1,204 @@
+# 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-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
+HOMEPAGE="https://libcxx.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+clang +libcxxabi static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	libcxxabi? (
+		~sys-libs/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]
+	)
+	!libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )
+"
+DEPEND="
+	${RDEPEND}
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=dev-util/cmake-3.16
+		sys-devel/gdb[python]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libcxx{,abi} llvm/{cmake,utils/llvm-lit} cmake )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# Darwin Prefix builds do not have llvm installed yet, so rely on
+	# bootstrap-prefix to set the appropriate path vars to LLVM instead
+	# of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version sys-devel/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+
+	if ! use libcxxabi && ! tc-is-gcc ; then
+		eerror "To build ${PN} against libsupc++, you have to use gcc. Other"
+		eerror "compilers are not supported. Please set CC=gcc and CXX=g++"
+		eerror "and try again."
+		die
+	fi
+}
+
+test_compiler() {
+	$(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \
+		<<<'int main() { return 0; }' &>/dev/null
+}
+
+src_configure() {
+	# note: we need to do this before multilib kicks in since it will
+	# alter the CHOST
+	local cxxabi cxxabi_incs
+	if use libcxxabi; then
+		cxxabi=system-libcxxabi
+		cxxabi_incs="${EPREFIX}/usr/include/c++/v1"
+	else
+		local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)"
+		cxxabi=libsupc++
+		cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}"
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	# bootstrap: cmake is unhappy if compiler can't link to stdlib
+	local nolib_flags=( -nodefaultlibs -lc )
+	if ! test_compiler; then
+		if test_compiler "${nolib_flags[@]}"; then
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CXX} seems to lack runtime, trying with ${nolib_flags[*]}"
+		fi
+	fi
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES=libcxx
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXX_CXX_ABI=${cxxabi}
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs}
+		# we're using our own mechanism for generating linker scripts
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		-DLIBCXX_INCLUDE_TESTS=$(usex test)
+		-DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}
+	)
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_compile() {
+	cmake_src_compile
+	if [[ ${CHOST} != *-darwin* ]] ; then
+		gen_shared_ldscript
+		use static-libs && gen_static_ldscript
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-cxx
+}
+
+multilib_src_install() {
+	cmake_src_install
+	# since we've replaced libc++.{a,so} with ldscripts, now we have to
+	# install the extra symlinks
+	if [[ ${CHOST} != *-darwin* ]] ; then
+		dolib.so lib/libc++_shared.so
+		use static-libs && dolib.a lib/libc++_static.a
+	fi
+}
+
+# Usage: deps
+gen_ldscript() {
+	local output_format
+	output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
+	[[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
+
+	cat <<-END_LDSCRIPT
+/* GNU ld script
+   Include missing dependencies
+*/
+${output_format}
+GROUP ( $@ )
+END_LDSCRIPT
+}
+
+gen_static_ldscript() {
+	# Move it first.
+	mv lib/libc++{,_static}.a || die
+	# Generate libc++.a ldscript for inclusion of its dependencies so that
+	# clang++ -stdlib=libc++ -static works out of the box.
+	local deps=(
+		libc++_static.a
+		$(usex libcxxabi libc++abi.a libsupc++.a)
+	)
+	# On Linux/glibc it does not link without libpthread or libdl. It is
+	# fine on FreeBSD.
+	use elibc_glibc && deps+=( libpthread.a libdl.a )
+
+	gen_ldscript "${deps[*]}" > lib/libc++.a || die
+}
+
+gen_shared_ldscript() {
+	# Move it first.
+	mv lib/libc++{,_shared}.so || die
+	local deps=(
+		libc++_shared.so
+		# libsupc++ doesn't have a shared version
+		$(usex libcxxabi libc++abi.so libsupc++.a)
+	)
+
+	gen_ldscript "${deps[*]}" > lib/libc++.so || die
+}
diff --git a/sys-libs/libcxxabi/Manifest b/sys-libs/libcxxabi/Manifest
index 4a7c043633ea..82b7906b3a05 100644
--- a/sys-libs/libcxxabi/Manifest
+++ b/sys-libs/libcxxabi/Manifest
@@ -8,6 +8,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD libcxxabi-14.0.6.ebuild 3385 BLAKE2B 4de1316298a9ca1fab72d50484e01346b51a9d14eade701ebcb65100984a63b5bbf3cbea8640dc30e665539cf4af4edd5e1cf4efe7761c6e7cd050ba3d82c3ec SHA512 e23fbcd217ab40c2250bb4ab1fbd7845f9619d0333d2177b20051f9fded815c6b49f806201bf8a023db71287ec73c7ba6b4fa85a1256bef8c7861a2a4f480c31
@@ -19,4 +20,5 @@ EBUILD libcxxabi-16.0.5.ebuild 2922 BLAKE2B deb13575bf9827c2e53b9e9d6179c4cb1db4
 EBUILD libcxxabi-17.0.0.9999.ebuild 2867 BLAKE2B 1565024272821f5db0817703d3c344ef2286c0f8cfd09756a9b9ee75482cb89b618b302162bb1cd6b9a4fab3d5e716853fef94015d254a44bd282c50b2b945cc SHA512 b7d17ef8afb5d4415377a9f2b4c9e6a0defec0262c5c8d730036a1c25e8eb2c8fa79c3d67adef58f33b905d43b80d61934dccf1121b7d0669d6e14905655f421
 EBUILD libcxxabi-17.0.0_pre20230526.ebuild 2867 BLAKE2B 1565024272821f5db0817703d3c344ef2286c0f8cfd09756a9b9ee75482cb89b618b302162bb1cd6b9a4fab3d5e716853fef94015d254a44bd282c50b2b945cc SHA512 b7d17ef8afb5d4415377a9f2b4c9e6a0defec0262c5c8d730036a1c25e8eb2c8fa79c3d67adef58f33b905d43b80d61934dccf1121b7d0669d6e14905655f421
 EBUILD libcxxabi-17.0.0_pre20230602.ebuild 2867 BLAKE2B 1565024272821f5db0817703d3c344ef2286c0f8cfd09756a9b9ee75482cb89b618b302162bb1cd6b9a4fab3d5e716853fef94015d254a44bd282c50b2b945cc SHA512 b7d17ef8afb5d4415377a9f2b4c9e6a0defec0262c5c8d730036a1c25e8eb2c8fa79c3d67adef58f33b905d43b80d61934dccf1121b7d0669d6e14905655f421
+EBUILD libcxxabi-17.0.0_pre20230609.ebuild 2867 BLAKE2B 1565024272821f5db0817703d3c344ef2286c0f8cfd09756a9b9ee75482cb89b618b302162bb1cd6b9a4fab3d5e716853fef94015d254a44bd282c50b2b945cc SHA512 b7d17ef8afb5d4415377a9f2b4c9e6a0defec0262c5c8d730036a1c25e8eb2c8fa79c3d67adef58f33b905d43b80d61934dccf1121b7d0669d6e14905655f421
 MISC metadata.xml 557 BLAKE2B 4f6b0acb7cfdf74971a6fd96051d9f9020141c6117333a8de42bd043935b7bff8d9942faabdf3b1c94597c460393f64eb7d3f7b7d49f39ecfd0094de460f563e SHA512 67a812ef768e681ae77ef6e13bccffcbe53b41e94901f0558b3c7acaf896605ca670c4bb5a690bd9afa3b5a76271341710520a6abc0024c18f437fabde20e847
diff --git a/sys-libs/libcxxabi/libcxxabi-17.0.0_pre20230609.ebuild b/sys-libs/libcxxabi/libcxxabi-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..16f40d6829fa
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-17.0.0_pre20230609.ebuild
@@ -0,0 +1,116 @@
+# 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-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+clang static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+# in 15.x, cxxabi.h is moving from libcxx to libcxxabi
+RDEPEND+="
+	!<sys-libs/libcxx-15
+"
+DEPEND="
+	${RDEPEND}
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libcxx{abi,} llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# darwin prefix builds do not have llvm installed yet, so rely on bootstrap-prefix
+	# to set the appropriate path vars to LLVM instead of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version sys-devel/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx"
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+		-DLIBCXXABI_USE_COMPILER_RT=${use_compiler_rt}
+
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_compile() {
+	cmake_build cxxabi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-cxxabi
+}
+
+multilib_src_install() {
+	DESTDIR="${D}" cmake_build install-cxxabi
+}
diff --git a/sys-libs/libomp/Manifest b/sys-libs/libomp/Manifest
index d2565c286afb..a30fc3a39319 100644
--- a/sys-libs/libomp/Manifest
+++ b/sys-libs/libomp/Manifest
@@ -11,6 +11,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD libomp-14.0.6-r1.ebuild 3917 BLAKE2B d92540af690dd622122ad1a4ed2548afa141f1254fbe9a9b3d34286b36f0fa70ccaf915f218c1bea8c68377ea20724db9443d365e2e5f290707f444d3ff47ca5 SHA512 433ae63716103af5aa493c7dbae43f10003cac95abaae579dcb61cba6390da4b9b3fc921e410ba899719bd170fa153a7b3d66c8776c37fd074066173c1fea160
@@ -23,4 +24,5 @@ EBUILD libomp-16.0.5.ebuild 3993 BLAKE2B 12ea9bf058a78f1a4439ee65528a592b0fed0a1
 EBUILD libomp-17.0.0.9999.ebuild 3921 BLAKE2B 2aa5aa2719a4f9a7f244cd92fb819d0fafc81d7f806d1b295c583159e0884c14c04bf1188d8c9e315c4cd2e1d3940311cd4e80f03e501958cd3b38e1c0567ab9 SHA512 c6f7bbf7296b24154a170c47044851c7331564af58cdca813ac13903535e49438c9165c8c811e72ad18e0a2db4e890f9dce163f6f07b0b1d60a473e455402b00
 EBUILD libomp-17.0.0_pre20230526.ebuild 3921 BLAKE2B 2aa5aa2719a4f9a7f244cd92fb819d0fafc81d7f806d1b295c583159e0884c14c04bf1188d8c9e315c4cd2e1d3940311cd4e80f03e501958cd3b38e1c0567ab9 SHA512 c6f7bbf7296b24154a170c47044851c7331564af58cdca813ac13903535e49438c9165c8c811e72ad18e0a2db4e890f9dce163f6f07b0b1d60a473e455402b00
 EBUILD libomp-17.0.0_pre20230602.ebuild 3921 BLAKE2B 2aa5aa2719a4f9a7f244cd92fb819d0fafc81d7f806d1b295c583159e0884c14c04bf1188d8c9e315c4cd2e1d3940311cd4e80f03e501958cd3b38e1c0567ab9 SHA512 c6f7bbf7296b24154a170c47044851c7331564af58cdca813ac13903535e49438c9165c8c811e72ad18e0a2db4e890f9dce163f6f07b0b1d60a473e455402b00
+EBUILD libomp-17.0.0_pre20230609.ebuild 3921 BLAKE2B 2aa5aa2719a4f9a7f244cd92fb819d0fafc81d7f806d1b295c583159e0884c14c04bf1188d8c9e315c4cd2e1d3940311cd4e80f03e501958cd3b38e1c0567ab9 SHA512 c6f7bbf7296b24154a170c47044851c7331564af58cdca813ac13903535e49438c9165c8c811e72ad18e0a2db4e890f9dce163f6f07b0b1d60a473e455402b00
 MISC metadata.xml 963 BLAKE2B fdea4545db21492049061b85eaa7038965183e10aceae7c41daadc1ce10e7e1bcb2e86344659787ee244360b50b51c99e1a348d3acd2185dac80097541a00dd7 SHA512 c279f8e9c2463dc3f6e02856e520105d6f3321b633439bfe7409bfd6e7e43f1450053dc4f6663492caf7077caf3f4ab0f5cf0161631639e3aefa9ff985dc476f
diff --git a/sys-libs/libomp/libomp-17.0.0_pre20230609.ebuild b/sys-libs/libomp/libomp-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..0da07fface9a
--- /dev/null
+++ b/sys-libs/libomp/libomp-17.0.0_pre20230609.ebuild
@@ -0,0 +1,151 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{9..11} )
+inherit flag-o-matic cmake-multilib linux-info llvm llvm.org
+inherit python-single-r1 toolchain-funcs
+
+DESCRIPTION="OpenMP runtime library for LLVM/clang compiler"
+HOMEPAGE="https://openmp.llvm.org"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0/${LLVM_SOABI}"
+KEYWORDS=""
+IUSE="
+	+debug gdb-plugin hwloc offload ompt test
+	llvm_targets_AMDGPU llvm_targets_NVPTX
+"
+REQUIRED_USE="
+	gdb-plugin? ( ${PYTHON_REQUIRED_USE} )
+"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	gdb-plugin? ( ${PYTHON_DEPS} )
+	hwloc? ( >=sys-apps/hwloc-2.5:0=[${MULTILIB_USEDEP}] )
+	offload? (
+		dev-libs/libffi:=[${MULTILIB_USEDEP}]
+		~sys-devel/llvm-${PV}[${MULTILIB_USEDEP}]
+		llvm_targets_AMDGPU? ( dev-libs/rocr-runtime:= )
+	)
+"
+# tests:
+# - dev-python/lit provides the test runner
+# - sys-devel/llvm provide test utils (e.g. FileCheck)
+# - sys-devel/clang provides the compiler to run tests
+DEPEND="
+	${RDEPEND}
+"
+BDEPEND="
+	dev-lang/perl
+	offload? (
+		llvm_targets_AMDGPU? ( sys-devel/clang )
+		llvm_targets_NVPTX? ( sys-devel/clang )
+		virtual/pkgconfig
+	)
+	test? (
+		${PYTHON_DEPS}
+		$(python_gen_cond_dep '
+			dev-python/lit[${PYTHON_USEDEP}]
+		')
+		sys-devel/clang
+	)
+"
+
+LLVM_COMPONENTS=( openmp cmake llvm/include )
+llvm.org_set_globals
+
+kernel_pds_check() {
+	if use kernel_linux && kernel_is -lt 4 15 && kernel_is -ge 4 13; then
+		local CONFIG_CHECK="~!SCHED_PDS"
+		local ERROR_SCHED_PDS="\
+PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels >= 4.13-pf11
+< 4.14-pf9) do not implement sched_yield() call which may result in horrible
+performance problems with libomp. If you are using one of the specified
+kernel versions, you may want to disable the PDS scheduler."
+
+		check_extra_config
+	fi
+}
+
+pkg_pretend() {
+	kernel_pds_check
+}
+
+pkg_setup() {
+	use offload && LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	if use gdb-plugin || use test; then
+		python-single-r1_pkg_setup
+	fi
+}
+
+multilib_src_configure() {
+	# LTO causes issues in other packages building, #870127
+	filter-lto
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	local build_omptarget=OFF
+	# upstream disallows building libomptarget when sizeof(void*) != 8
+	if use offload &&
+		"$(tc-getCC)" ${CFLAGS} ${CPPFLAGS} -c -x c - -o /dev/null \
+		<<-EOF &>/dev/null
+			int test[sizeof(void *) == 8 ? 1 : -1];
+		EOF
+	then
+		build_omptarget=ON
+	fi
+
+	local libdir="$(get_libdir)"
+	local mycmakeargs=(
+		-DOPENMP_LIBDIR_SUFFIX="${libdir#lib}"
+
+		-DLIBOMP_USE_HWLOC=$(usex hwloc)
+		-DLIBOMP_OMPD_GDB_SUPPORT=$(multilib_native_usex gdb-plugin)
+		-DLIBOMP_OMPT_SUPPORT=$(usex ompt)
+
+		-DOPENMP_ENABLE_LIBOMPTARGET=${build_omptarget}
+
+		# do not install libgomp.so & libiomp5.so aliases
+		-DLIBOMP_INSTALL_ALIASES=OFF
+		# disable unnecessary hack copying stuff back to srcdir
+		-DLIBOMP_COPY_EXPORTS=OFF
+		# prevent trying to access the GPU
+		-DLIBOMPTARGET_AMDGPU_ARCH=LIBOMPTARGET_AMDGPU_ARCH-NOTFOUND
+	)
+
+	if [[ ${build_omptarget} == ON ]]; then
+		if has "${CHOST%%-*}" aarch64 powerpc64le x86_64; then
+			mycmakeargs+=(
+				-DLIBOMPTARGET_BUILD_AMDGPU_PLUGIN=$(usex llvm_targets_AMDGPU)
+				-DLIBOMPTARGET_BUILD_CUDA_PLUGIN=$(usex llvm_targets_NVPTX)
+			)
+		else
+			mycmakeargs+=(
+				-DLIBOMPTARGET_BUILD_AMDGPU_PLUGIN=OFF
+				-DLIBOMPTARGET_BUILD_CUDA_PLUGIN=OFF
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=(
+		# this project does not use standard LLVM cmake macros
+		-DOPENMP_LLVM_LIT_EXECUTABLE="${EPREFIX}/usr/bin/lit"
+		-DOPENMP_LIT_ARGS="$(get_lit_flags)"
+
+		-DOPENMP_TEST_C_COMPILER="$(type -P "${CHOST}-clang")"
+		-DOPENMP_TEST_CXX_COMPILER="$(type -P "${CHOST}-clang++")"
+	)
+	addpredict /dev/nvidiactl
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-libomp
+}
diff --git a/sys-libs/liburing/Manifest b/sys-libs/liburing/Manifest
index 4c08cf671393..cfb9592ded2e 100644
--- a/sys-libs/liburing/Manifest
+++ b/sys-libs/liburing/Manifest
@@ -5,9 +5,10 @@ AUX liburing-2.3-remove-error-from-error_h-for-portability.patch 4160 BLAKE2B 02
 DIST liburing-2.1.tar.bz2 120806 BLAKE2B 3a09d1504150ed1c111f064187d868fd86ec7c3dbf661f73999f7fbb9c945b528f7ab2e0cfff5d270a1a977f04deedc7c790b6df8708ef2884fbf28c1a9ffd1b SHA512 a658454869b01752b5e499c4f0b50c342a8ff63b3dd1a473a96f9fad03f22a6e4d2354b0e658a4e7e50ea27440a84ee274856b3687803583bc80cb4bc45aec71
 DIST liburing-2.2.tar.bz2 172733 BLAKE2B 19ae8a356e4fdc296bfb3ff121b777bd7c970388b31686aac5c531508e807360d58220bc27f9c62c55bd76ca687013acfceb3fa8a2162b615561f637cc50ffe1 SHA512 55b935a90c108be54393a5ab341b56e40ad8d506360fe15b3dcde5ee263356f11080f8614efdc4253f6318ea35d808ec47a9dbfc6b9f6cc2e04f7f1a75c3f621
 DIST liburing-2.3.tar.bz2 197929 BLAKE2B 94ae2a79522fbac13c071ad752f5cbfae3e3b3dd6b35da24e5c756ba47a7b304e5bcb18391ca23fc2edafeb2dbcdcf143fd2cda71656396ac34248159a964fb7 SHA512 341aa13d3b560617f3710291945ec2fe35d828e0b67ee3a97555fd4eb3d2042a7f9e722080d8ebb45aa74a2ca4ef58db1e8a10c351e951a604da007ba69d2738
+DIST liburing-2.4.tar.bz2 213774 BLAKE2B 3e6c28842db6ee10e38df297e392803e0ff40ccfea774b2c473ba63b5583e760371bf0ce8e34ca4311e2bef69eee81b2b50b5e906bb328d5b321488136fc61e0 SHA512 45b5123739280835c88c1addcf99a3210a91c6e1b3e0c5a20fd4cf3ff55db5fd1475b0351806be2e86fedfa313200eecac6a9a6f410a9eca7e451081fd8eec96
 EBUILD liburing-2.1-r2.ebuild 1724 BLAKE2B 900c92124e14b809a698f48b81536e4b6c37e6629169fcb0b668cefb51cdcba84d7555a3eff957b0bd1b9c37bb2f4005d9c2bae569b6a1b852043c77614f3d02 SHA512 385c3f5f1d2d5bc38463d758d317ce58ee57261b80e039772a3a050d4aa870dcd80f4a7d5247e6036aea777494edf40af6669438ea4ef9b1cad87144437789aa
 EBUILD liburing-2.2.ebuild 1574 BLAKE2B 78ebce489d9b427f0832118b0e752cc8cb033a7b98bbb056b85222d69e355d01ca3c3ae3e1a9d9afbad14f0aaa4cdead017a580fc32734adb8097e0bd43f4854 SHA512 84002d4a80e24bc4516170a720f10a15d7fa94e5a7a1831c38be7e109bcc0f90423cfd9097569be4b3af45be366ea1c537fb9626012fda502377fea0438d6b83
 EBUILD liburing-2.3-r4.ebuild 2142 BLAKE2B 22748487fd62608752ef8e0dda645e74c948d664818e8f755449bc53c4213f15ba83f00d4aebded5cf82da62e0f5989f4b7de18afc992ba6f3b1c4b9bb4952bf SHA512 7364fd68ba42e0eb970f52f6bb4fefa26a029378164c283ac88b251ccaab5c242c3c4cea5f0f1449bcb2f6a9eb0ba73ac477ee4f5b819f311cc78ad946c38220
-EBUILD liburing-2.3.ebuild 1581 BLAKE2B d67499bcdff891ee3d5883f01dd1250c5357551719cab3aa1b52ec69083acdbe2ef28c29acdab92223ace87440309c7357cc663542270a04889fc558457dc034 SHA512 1820e0094a1830a73d404c052fd22e6fdc9dbc264dcb3b351f8d672caebbb8ab42a9cb318fd33e098ba4d2f2781bd35d903527883bd1af7b581e779e5882dde0
+EBUILD liburing-2.4.ebuild 1896 BLAKE2B 443616eb7133f1887f69373deefc21af17dea96774a15457f906fe269f3e2c6f1bac9b929cc68684d3a3326f46fd10f1fca8efb2ef2f5c43e320a111c34346c8 SHA512 20253472f8bd1fb541cac0f21aaec4d6b3f1106ff9e61bc82370d7f6d65388739dc4246b53c6171156647b70af6c11d88d6993160e8d8088f0cce648156055ee
 EBUILD liburing-9999.ebuild 1896 BLAKE2B 443616eb7133f1887f69373deefc21af17dea96774a15457f906fe269f3e2c6f1bac9b929cc68684d3a3326f46fd10f1fca8efb2ef2f5c43e320a111c34346c8 SHA512 20253472f8bd1fb541cac0f21aaec4d6b3f1106ff9e61bc82370d7f6d65388739dc4246b53c6171156647b70af6c11d88d6993160e8d8088f0cce648156055ee
 MISC metadata.xml 326 BLAKE2B 7c133a6dbb4ab4b537c0741ec9f3cd525c0803040950ee93e4c1cbc848c7618074471cc1a18ca07d6963c06252c83b66df0811ebae4c0cf9d7782f66ca5aa14a SHA512 1aacf941a9fa57429468fdfc8f546f559c5d483988ba5c6b0f4ed0fe5913f85d218b2a9eec83bae1d11a71eed36a37e76ccedc192697fbe9763fd0b09b2dcfd7
diff --git a/sys-libs/liburing/liburing-2.3.ebuild b/sys-libs/liburing/liburing-2.4.ebuild
index 60a614906d8e..ecb77ed5b823 100644
--- a/sys-libs/liburing/liburing-2.3.ebuild
+++ b/sys-libs/liburing/liburing-2.4.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -12,14 +12,15 @@ if [[ "${PV}" == *9999 ]] ; then
 	EGIT_REPO_URI="https://github.com/axboe/liburing.git"
 else
 	SRC_URI="https://git.kernel.dk/cgit/${PN}/snapshot/${P}.tar.bz2"
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86"
+	QA_PKGCONFIG_VERSION=${PV}
 fi
 LICENSE="MIT"
 SLOT="0/2" # liburing.so major version
 
-IUSE="static-libs"
+IUSE="examples static-libs test"
 # fsync test hangs forever
-RESTRICT="test"
+RESTRICT="!test? ( test )"
 
 # At least installed headers need <linux/*>, bug #802516
 DEPEND=">=sys-kernel/linux-headers-5.1"
@@ -28,10 +29,11 @@ RDEPEND="${DEPEND}"
 src_prepare() {
 	default
 
-	if [[ "${PV}" != *9999 ]] ; then
-		# Make sure pkgconfig files contain the correct version
-		# bug #809095 and #833895
-		sed -i "/^Version:/s@[[:digit:]\.]\+@${PV}@" ${PN}.spec || die
+	if ! use examples; then
+		sed -e '/examples/d' Makefile -i || die
+	fi
+	if ! use test; then
+		sed -e '/test/d' Makefile -i || die
 	fi
 
 	multilib_copy_sources
@@ -63,5 +65,19 @@ multilib_src_install_all() {
 }
 
 multilib_src_test() {
-	emake V=1 runtests
+	local disabled_tests=(
+		accept.c
+		fpos.c
+		io_uring_register.c
+		link-timeout.c
+		read-before-exit.c
+		recv-msgall-stream.c
+	)
+	local disabled_test
+	for disabled_test in "${disabled_tests[@]}"; do
+		sed -i "/\s*${disabled_test}/d" test/Makefile \
+			|| die "Failed to remove ${disabled_test}"
+	done
+
+	emake -C test V=1 runtests
 }
diff --git a/sys-libs/llvm-libunwind/Manifest b/sys-libs/llvm-libunwind/Manifest
index de7592942abd..8ad4621884df 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -8,6 +8,7 @@ DIST llvm-project-16.0.4.src.tar.xz 117996332 BLAKE2B 2ea3ef25290ce6180d271e42fb
 DIST llvm-project-16.0.4.src.tar.xz.sig 566 BLAKE2B 43cb2147f12f98f864797158e8efcfed9c6780fae3b5c71c0f1aea19a4131ee91c36bdf5b10e44f478f2370c8d22a9038038ecd607f25a95f2d3e33628eb9ac0 SHA512 c902d1b652e6e144fcf74f550539f56665475b6bdf673ba5bf2f1731c3bb8f5717ed56433d488c54bbf2f429b432da84e0bfb4b5fb5f2b7fa208b4f24f682be7
 DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afbca5cddc6fbad6c9728726f7158f290ab87d464ff657e89e1c8fc3c474362cc865ff13c5d55ef758c848ea3e660d732cb2fdefa SHA512 7008e7e9c8c2246fe98ba3f0c0fa91e41c88c4da427bf1cfdcce7ef57e5ea838efe7c58c523a7d1708e70d64a4338afe16d06fba2fc7ac5a6c19ca3d6ee41e99
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
+DIST llvm-project-62c0bdabfa32f6e32b17b45425b15309db340dfb.tar.gz 190948645 BLAKE2B f41d8ea32e189ef4641e42628fb516e307c9a6fcf65af537eb9fc0d3186591b062c5e85c9e935511ef706f28c6994a774a4e3f36ff54d79aaac7b293a6168625 SHA512 55a4cbfec3a496c1918aa614e5bdee368e4d0b6641c946d8bf8b828ab4bf4d9b29dbe96401a172079d70f924f5e513428fe990c65b556a0a860802cb13f5e3a0
 DIST llvm-project-a2684acfb61d40f441e240035d7f1ba50da637c8.tar.gz 184900914 BLAKE2B fb1f836738415a640bc84283722f6a7355a06bc8ac05b544dd4ad4ac9552dcf70040b82b0493c5b4485b28610412279ec0adcf467e71915167aa7d010c08216e SHA512 c08ff8abc166399e692d3166ccf65eb4b647893cba8ffc10bcda815bc914a944855bac036d6349f6d820a6ff43d5417170e6ff8620d97a2a144a0898e95d09e3
 DIST llvm-project-f9753ef1893c3d953a0244e7935d3997499b079a.tar.gz 185505236 BLAKE2B 570a8937788027ee2cef0dad6be693c57b4a5634c0c1fc2bc1c2f534fb4ae00203f14b1bcf0a0f241e7e1e8c25120dc6ea7ede2a10bed397e1cc377318ebe7a0 SHA512 c12eade7c9790ec2a790017b1451a15f0ff7d1b60879f08a448edcb4f162703650b244fdc2fc284335dff4b2a37ef5d488e0d771abee79b49cac94b9e478f010
 EBUILD llvm-libunwind-14.0.6-r1.ebuild 3161 BLAKE2B ba7b19ed2bc77b52eee0b04d938541d2eb4053b65a641e55e54ebac85adcd432fa60b2b484003890bc96be83d61410bb58c2f3a86f12a7c574044a8e10427db9 SHA512 11854f9ef2a552a96e51c618958e553d4cd4affc78312845a223d0fe6d2ff62e8f8b2b3c29ad4a093b08a6df63b230f21b9ef6b63440058322f6a00f160df3e4
@@ -19,4 +20,5 @@ EBUILD llvm-libunwind-16.0.5.ebuild 3045 BLAKE2B e0704cc1c6a743ecd3c073df9456f7a
 EBUILD llvm-libunwind-17.0.0.9999.ebuild 2979 BLAKE2B 6c50c9b69b0cc8fa3799e9506b5d45946ea2606dc53d0925976633c2209f6148653e8b12bc31b76f56c4963d64b27971aec00c9e4da89d0489a76d1ba61a9f37 SHA512 e09e4bdbd8af6a470894c5950d81edf7574eba7c56f922c5447777247fa886dde958b8ee13257ca40cd7cee8af9f91fd6b9c11cf42a53b48bee0aacb469270ee
 EBUILD llvm-libunwind-17.0.0_pre20230526.ebuild 2979 BLAKE2B 6c50c9b69b0cc8fa3799e9506b5d45946ea2606dc53d0925976633c2209f6148653e8b12bc31b76f56c4963d64b27971aec00c9e4da89d0489a76d1ba61a9f37 SHA512 e09e4bdbd8af6a470894c5950d81edf7574eba7c56f922c5447777247fa886dde958b8ee13257ca40cd7cee8af9f91fd6b9c11cf42a53b48bee0aacb469270ee
 EBUILD llvm-libunwind-17.0.0_pre20230602.ebuild 2979 BLAKE2B 6c50c9b69b0cc8fa3799e9506b5d45946ea2606dc53d0925976633c2209f6148653e8b12bc31b76f56c4963d64b27971aec00c9e4da89d0489a76d1ba61a9f37 SHA512 e09e4bdbd8af6a470894c5950d81edf7574eba7c56f922c5447777247fa886dde958b8ee13257ca40cd7cee8af9f91fd6b9c11cf42a53b48bee0aacb469270ee
+EBUILD llvm-libunwind-17.0.0_pre20230609.ebuild 2979 BLAKE2B 6c50c9b69b0cc8fa3799e9506b5d45946ea2606dc53d0925976633c2209f6148653e8b12bc31b76f56c4963d64b27971aec00c9e4da89d0489a76d1ba61a9f37 SHA512 e09e4bdbd8af6a470894c5950d81edf7574eba7c56f922c5447777247fa886dde958b8ee13257ca40cd7cee8af9f91fd6b9c11cf42a53b48bee0aacb469270ee
 MISC metadata.xml 438 BLAKE2B 2a36fbbc59e137056029c62aef6d167d9c82531c2582d7bad5cb13cc36e5c4c9518ffe8c56d06bbcfd97ad22eda71a8b776f3984195f53d06cf45659b438dc00 SHA512 4f18b054072d00e5440faa31a59f9ef587d035b5f25e30913f0b1449debee967fa794fae2548e87db3fb2177ce853ab075e1f11f3cc763f5d7fdf06147108845
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-17.0.0_pre20230609.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-17.0.0_pre20230609.ebuild
new file mode 100644
index 000000000000..51cf06f1cda3
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-17.0.0_pre20230609.ebuild
@@ -0,0 +1,123 @@
+# 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-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://llvm.org/docs/ExceptionHandling.html"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+clang +debug static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libunwind libcxx llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( libcxxabi llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+
+	# https://github.com/llvm/llvm-project/issues/56825
+	# also separately bug #863917
+	filter-lto
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES="libunwind"
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
+		-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
+		-DLIBUNWIND_INCLUDE_TESTS=$(usex test)
+		-DLIBUNWIND_INSTALL_HEADERS=ON
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_ENABLE_RUNTIMES="libunwind;libcxxabi;libcxx"
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}