gentoo resync : 29.12.2022

4 files changed, 374 insertions, 0 deletions

diff --git a/sys-libs/llvm-libunwind/Manifest b/sys-libs/llvm-libunwind/Manifest
index 6315cf0cdab4..582b9e286080 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -1,11 +1,19 @@
 DIST llvm-gentoo-patchset-13.0.1.tar.xz 6288 BLAKE2B 899222b962486e924e4f8a2b574d285531a3f87af9385ff68c81db92aa224a0cde6d4ee049b5405056bedb4b232b50e1d5840024071a4a215f6311853304c92d SHA512 b2805337f1deca626768a44c5e7ac9ed16e0c31bead1647d44a493a8123c1b8e8f1c8ceee3536bcc6fa87fdd3fcec408229f701adf30eff07e7ef9889b847b01
+DIST llvm-project-14.0.5.src.tar.xz 105617748 BLAKE2B a68a6eb58302702f560d1204eb97d34b695eb5df417ccefb50117dbd641ba3c3dda9e64c04506e646dd40c1151eb60b12843e206996ef74b35b2841b8dabafda SHA512 db5a7ea1149988c2aab4ed634f14e00bb9a8042089350b811f875e295ced7b5add80a11b91cad80ba0ba9801261502644a720021506483c14dfb1bc24a7f54d5
+DIST llvm-project-14.0.5.src.tar.xz.sig 566 BLAKE2B ecf66df5d0acb382c9d441aee053404254fa4087d57130b04bb496af9cbb71c59e82f0938f44953d7fd777524781d13d1327b6c64065cf45b177bc3ea0e5c3f2 SHA512 a785e38f11863a46de8766ff4495a73173479cdbd95dc539804b0381a7a834a409713dbaf441272a9cc2963a3c7015c95dc6f0dcfa745e8d6047b1ad5feacff7
+DIST llvm-project-14.0.6.src.tar.xz 105618228 BLAKE2B ee67c5407df8cef493b9c0004f15e428f22a536a17e5f4e3eb29a003b8a8ec0abe0fa3e072591161d5f30ef7d8867c1ce34d1b341ad858e93c00263499941a99 SHA512 6fc6eeb60fac698702d1aac495fc0161eb7216a1f8db2020af8fccec5837831f7cc20dc2a169bf4f0b5f520748280b4a86621f3697d622aa58faaa45dbfaad13
+DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf0569c97b5ee4b1bd58eceb10e1879a30880c741c3d66bedd462c892309b688fb7b2673115a62d1f74d71ee375a578de9547f SHA512 b4a7b368532a7a4a24376cfa7db8f6d3478f6d4446474342fc00b474ecf466330cd0f16783209263c4c72d5fc7ddedfb11b95578842e700cfb7ee0bb34cc95d6
 DIST llvmorg-12.0.1.tar.gz 134259748 BLAKE2B f41de787bc73ff2edfda1b22cc8602be6f65f37dd9e4c8888533cfa8c3ccdcf4f108aaab9de23ab0ab987966eb160f2a553a0bdff99461e71ddd5bfcd086090d SHA512 6eb0dc18e2c25935fabfdfc48b0114be0939158dfdef7b85b395fe2e71042672446af0e68750aae003c9847d10d1f63316fe95d3df738d18f249174292b1b9e1
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 DIST llvmorg-14.0.1.tar.gz 158074615 BLAKE2B bf80366461580058494eb101646efcd1a8b55a66818a710c2eb8c649bf88c02fe4552cecf4c1c8637a64e7cee8d644bca31aafc804765ed18f2b5e2975dd6c92 SHA512 0a15aa9cfc978a7b03a1659a2affad65ede66d280f5c12bf0beaaf194cd7bdd57ff438b5f40e64c1e1b88f368de99be349e9d30b544d2bbe4a50f0ebed3307f2
 DIST llvmorg-14.0.3.tar.gz 158092596 BLAKE2B ef901df510ec6bc1242595ec330e9c9ee76e696b077d67a8d62b53608c3d18b2f2d7ea3150864e13d9b37a8ce899ebca946ebe72cbc4538700176e20859ddec2 SHA512 511e93fd9b1c414c38fe9e2649679ac0b16cb04f7f7838569d187b04c542a185e364d6db73e96465026e3b2533649eb75ac95507d12514af32b28bdfb66f2646
+DIST llvmorg-14.0.4.tar.gz 158088617 BLAKE2B 7fb894548dce72593a8639b4d0220d2499577f80d38b97600749c91a498c69dfbbe818cee35e4a76370795e55da7037543ea341ad7567a6f548893c67dce9e64 SHA512 e14e6c3a1915a96e9ddc609f16ca3a398ca6f7fd0a691dadaa24490078a661340e845cb2d18f3679de4f47300bb822c33ae69548af6a0370d55737831a28b959
 EBUILD llvm-libunwind-12.0.1.ebuild 3656 BLAKE2B cdf5e4e4f39ce47ac57ac43f287b5d6a42a61a79d988cdcd52823aadb0c1950abc85f5c1ba8276198e46357fc27f3ab7d06c0e7e9279a9a40e4dc7f4b936aac5 SHA512 c6477d4837e8e0d3ee6c035e0462e0a817752af214ff20ace3b8c3e377c749351cf78bf2ffec3d95085334f6b9a0a23e311f5a50109c390ad5bec60a0bef2dd5
 EBUILD llvm-libunwind-13.0.1.ebuild 3810 BLAKE2B c215ba47340bda6a466f6ffcdf978d0d3ab4f4f1f456114f854f53dd3dd04d197ee235c4623d0a3d6e0f26022fef909be2ad04e93679ce357c396c94dc7d3a49 SHA512 96827c5f5838898ac368b79677b6e17fb0545a6a5239f8262622034843777ad4f071f9f80e3c33e0e1a2df334abcefbd7e867c5957d2bf72a1b8416b5b7ac714
 EBUILD llvm-libunwind-14.0.1.ebuild 3186 BLAKE2B e5412e6d38ce37d72640805ee3befc88ea3c0f8ae58e5f2dd2a779ac02cd51e55efe2392d3f7fc9ff1f9b2f135018527fa8e24504910c42e47d2186fa70375fb SHA512 7dc577c803526d2b6180bd1e2364789cf8ace3a7c121be1c38053f8505372b76ede20b97649aafd7ad1ebbc06c0dea405c40b0e39cb5dab139a045e047959e5d
 EBUILD llvm-libunwind-14.0.3.ebuild 3205 BLAKE2B 94ee3640bf57770f52d8bf0adb53ac5eec90884af970ad72e23d0208986a3801bb327a8cf791bd97c2e9414710201e7b61cc5d1d5aef16233b015bf9c4630b4a SHA512 46e2f37981fb1e6e454da41fdeba5d9c3a97173631caf4b619756a1b3bed6b3f4904a73d799ec5fc21a96b4cd46a92033d5fdc113a9be9707c2e1dbc2237b8c6
+EBUILD llvm-libunwind-14.0.4.ebuild 3201 BLAKE2B edf5edd0c5fcfc3b8162c2b8ccfedf1a9399f686e55c163bf953889b50bc713af56a695f988beb883c006d30f59ae762e1730d034b43bead972812b919ef6bbe SHA512 faa8233f6a9108e1444584a2ea2161afac36413db1663f904c09e0172089d5f1ce4f0aeb575ac92952ef6492f0f36fe0d5d6bc47f8609432bac40ec619f6cb1e
+EBUILD llvm-libunwind-14.0.5.ebuild 3205 BLAKE2B 94ee3640bf57770f52d8bf0adb53ac5eec90884af970ad72e23d0208986a3801bb327a8cf791bd97c2e9414710201e7b61cc5d1d5aef16233b015bf9c4630b4a SHA512 46e2f37981fb1e6e454da41fdeba5d9c3a97173631caf4b619756a1b3bed6b3f4904a73d799ec5fc21a96b4cd46a92033d5fdc113a9be9707c2e1dbc2237b8c6
+EBUILD llvm-libunwind-14.0.6.ebuild 3205 BLAKE2B 94ee3640bf57770f52d8bf0adb53ac5eec90884af970ad72e23d0208986a3801bb327a8cf791bd97c2e9414710201e7b61cc5d1d5aef16233b015bf9c4630b4a SHA512 46e2f37981fb1e6e454da41fdeba5d9c3a97173631caf4b619756a1b3bed6b3f4904a73d799ec5fc21a96b4cd46a92033d5fdc113a9be9707c2e1dbc2237b8c6
 EBUILD llvm-libunwind-15.0.0.9999.ebuild 3145 BLAKE2B 37362f37ade47d59ebee5c65337768677a280379541c8468fdd7b31927b4eb93c2576a46838bb320bd526aa2191828cd8f7ae502adafec594b172065f5b90c35 SHA512 132b91d72b419267ef51ef5be15393a882897587f6190d62a3c39b091ef97eaef06e8f1fe62e3d8303c0f23581604357a10bc7b958b5b71ec3316c1a1dcc5e54
 MISC metadata.xml 303 BLAKE2B ed0dbe1165e30ee5c3556aaf467abf212e198590a06c70f0de4e2c12060644df928c8f388fadfe776249a77dc000b40881d7254cfdc30f7a41209e2524136adb SHA512 5a69c07b9b1b37646d29a7287f1ba1c9150a5fae60df644266232871b5e4db41c0e8d102e8b873af2bdbf814935e8f8479e1534b8aa47d0ee31e971e2fa4dc50
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-14.0.4.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.4.ebuild
new file mode 100644
index 000000000000..b5d8a38918e6
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.4.ebuild
@@ -0,0 +1,122 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{8..10} )
+inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://github.com/llvm-mirror/libunwind"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="amd64 ~arm arm64 ~ppc ppc64 ~riscv ~sparc x86 ~x64-macos"
+IUSE="debug static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6
+"
+BDEPEND="
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${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
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	local use_compiler_rt=OFF
+	local libdir=$(get_libdir)
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	if tc-is-clang; then
+		local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
+		   ${LD_FLAGS} -print-libgcc-file-name)
+		if [[ ${compiler_rt} == *libclang_rt* ]]; then
+			use_compiler_rt=ON
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DPython3_EXECUTABLE="${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
+		-DLIBUNWIND_TARGET_TRIPLE="${CHOST}"
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${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="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		# meh, we need to override the compiler explicitly
+		sed -e "/%{cxx}/s@, '.*'@, '${clang_path}'@" \
+			-i "${BUILD_DIR}"/libunwind/test/lit.site.cfg || die
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-14.0.5.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.5.ebuild
new file mode 100644
index 000000000000..b1b3c2dc140d
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.5.ebuild
@@ -0,0 +1,122 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{8..10} )
+inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://github.com/llvm-mirror/libunwind"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~x64-macos"
+IUSE="debug static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6
+"
+BDEPEND="
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${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
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	local use_compiler_rt=OFF
+	local libdir=$(get_libdir)
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	if tc-is-clang; then
+		local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
+		   ${LD_FLAGS} -print-libgcc-file-name)
+		if [[ ${compiler_rt} == *libclang_rt* ]]; then
+			use_compiler_rt=ON
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DPython3_EXECUTABLE="${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
+		-DLIBUNWIND_TARGET_TRIPLE="${CHOST}"
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${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="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		# meh, we need to override the compiler explicitly
+		sed -e "/%{cxx}/s@, '.*'@, '${clang_path}'@" \
+			-i "${BUILD_DIR}"/libunwind/test/lit.site.cfg || die
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6.ebuild
new file mode 100644
index 000000000000..b1b3c2dc140d
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-14.0.6.ebuild
@@ -0,0 +1,122 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{8..10} )
+inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://github.com/llvm-mirror/libunwind"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~x64-macos"
+IUSE="debug static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6
+"
+BDEPEND="
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${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
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	local use_compiler_rt=OFF
+	local libdir=$(get_libdir)
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	if tc-is-clang; then
+		local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
+		   ${LD_FLAGS} -print-libgcc-file-name)
+		if [[ ${compiler_rt} == *libclang_rt* ]]; then
+			use_compiler_rt=ON
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DPython3_EXECUTABLE="${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
+		-DLIBUNWIND_TARGET_TRIPLE="${CHOST}"
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${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="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		# meh, we need to override the compiler explicitly
+		sed -e "/%{cxx}/s@, '.*'@, '${clang_path}'@" \
+			-i "${BUILD_DIR}"/libunwind/test/lit.site.cfg || die
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}