reinit the tree, so we can have metadata

10 files changed, 672 insertions, 0 deletions

diff --git a/sys-libs/libcxxabi/Manifest b/sys-libs/libcxxabi/Manifest
new file mode 100644
index 000000000000..afdbd9316808
--- /dev/null
+++ b/sys-libs/libcxxabi/Manifest
@@ -0,0 +1,18 @@
+AUX libcxxabi-3.9.0-cmake-path.patch 1447 SHA256 8b4eb6a654c32ee8d2bedd1e7feaa7b0566a6d720b9d94fd5ead9c5cccbdb2fa SHA512 0466db8c0bfce67bda9a72ab953c327d7d7ddcf279aea7ecf02d121ec96f940ba76d390c35fb39ed5fb4fffdb66a412d6bd952d6e4a661494bf56e7aa7d6bc16 WHIRLPOOL 23b7e3c0079c34389bc6464d9f02847ecad2b0ed3bab714bb2a304fa3e8aea718d997eafbd218c08d8ef3e09c0379b0320114fb22cbf77451173f4ec1ac93e07
+AUX libcxxabi-3.9.0-test-unwind.patch 1110 SHA256 6bedf46f50f826291a8cb68b80b741701a6ae295100a5f893c2093956f546831 SHA512 b4ca3b35bc4e430fc7b7ff6bd6bad0306b30aec193275bc57d840e6643ffcf8cf6696eaf8b560d108f969a548cbb4688ce9d4e1bf649d60a98e7a9e280ed4763 WHIRLPOOL c68e7721a21c65b9c851625dd4159e72b730f07b5b615c94346904804129c204bd97b87186b3521c19808a70a6bc69a7ae9b849653f8c1b948098387fcae2365
+DIST libcxx-3.9.0.src.tar.xz 1198308 SHA256 d0b38d51365c6322f5666a2a8105785f2e114430858de4c25a86b49f227f5b06 SHA512 55d5c4adff378ee02b0b99d732bc9f326910f9e49ab8c320a588eccdd0362fe009bc9a6a4337d29faf6338420c91b10d0d7d67f66128268f01258d30502c4f4a WHIRLPOOL 3ee3519acfe95287a862a6c44e30ed52ced1204332913007797da4e4da40dfdc5991ae120f5686827cc208b559936da5bc5485dab75617bdd5cbbd9e95a6032a
+DIST libcxx-3.9.1.src.tar.xz 1209020 SHA256 25e615e428f60e651ed09ffd79e563864e3f4bc69a9e93ee41505c419d1a7461 SHA512 a5976e4096624a7307b3e43f4a22ac2dc74572226e0f57af9f3ef537a14c3cff1601b7042aef9dc40a0ee53ca76b08d72eb9c253dcf34f115d3153c302db7070 WHIRLPOOL cad439979570192b195338d752a24fb0ad8704c0c8efed3b6d7724437763eab7bc3b8baaf2f0e6fff55c6d9be211dff6f7baf18dec55e3a29ad3b8a423cefb1e
+DIST libcxx-4.0.1.src.tar.xz 1446380 SHA256 520a1171f272c9ff82f324d5d89accadcec9bc9f3c78de11f5575cdb99accc4c SHA512 91f3f397be606989be99865d0b279557f9afb93f7a74ed10c3a74f4440e38b5694ddf452bbf2f487cacd4391606dd5c7edfe5130f2de19e2acfd6cce619d028a WHIRLPOOL fe7c71e8dc2d17d14e94896837229c5ed872e7c04aea79a207e8fa98aa4539a7445e402b848d0c0d009f154f00d970159ad009d16bfdb9ae012ce5c7c6d9ba51
+DIST libcxx-5.0.0.src.tar.xz 1518940 SHA256 eae5981e9a21ef0decfcac80a1af584ddb064a32805f95a57c7c83a5eb28c9b1 SHA512 210749f6585d8fd39fc63a32dd85d68de4aa480c91915cbf419b9e8a3b300fa4624f03200ed963cecc8ab233777c36e8c522fa0762a2aa068bc65e6f48118328 WHIRLPOOL c791f6718e1c2a97fae26741284d861fc869721fca11b4ab4d3e9b4052ce17fca1fd99f945f406fdcdbfde43622cb7afe351e0268d773f6b42d1da2f5dc0f1f5
+DIST libcxxabi-3.9.0.src.tar.xz 511324 SHA256 b037a92717856882e05df57221e087d7d595a2ae9f170f7bc1a23ec7a92c8019 SHA512 500207bfd59664bd42d920741d6b467c4b88569453742db6470af081c77be04894e097a14b8419e333b51abce484566366e35cbc3ed2607cd86dfc0ec0ddd0c5 WHIRLPOOL 7b2d3b022c4c539596ce7be0afac724df929f19fb80e6f5b14074e240fb252b04389fe121f987ceaf6f3567d59735238b2940546475e4107f3c32eb55a5f8a80
+DIST libcxxabi-3.9.1.src.tar.xz 510964 SHA256 920d8be32e6f5574a3fb293f93a31225eeba15086820fcb942155bf50dc029e2 SHA512 4f5603f1476b759c86d4784728fbdd212c59b30dc56d787c1834bf68a9cd83071fa22658d24e5a58beb94c0c656b0e4457d7da6e3048715dd36bd68380fc336e WHIRLPOOL 8ff9d0a2d5657e384f3b624fe514ae4074552c34672e8b7caeb4870d700e71913447af75d56021d393c6eebd45018e5e80b706747b1433d9ec608a1d5b0b3051
+DIST libcxxabi-4.0.1.src.tar.xz 515820 SHA256 8f08178989a06c66cd19e771ff9d8ca526dd4a23d1382d63e416c04ea9fa1b33 SHA512 e94315ba8a507d8481d70c33e7ab2d724d51726edb8412c70a1b5f59e3f15d5825f1502dc2db138b20e5293fb90a184050be94d5ac270fd7ce78b502efb9f86a WHIRLPOOL 8771bb1f5ac8cb1d22a4606bfd3b448e1e3b942be0d5639a7c8c36abcc550a59cf2e530558aeb486294b642fdcd10c56695b59d094bed41e0115980cb587c8af
+DIST libcxxabi-5.0.0.src.tar.xz 521524 SHA256 176918c7eb22245c3a5c56ef055e4d69f5345b4a98833e0e8cb1a19cab6b8911 SHA512 88f48a3232c220a7d22ee31121e5c2bd09b506177079a1ff567eeae213e24a9bb8bd13e59f0c6ca5ec995c60bf516e3c2507d342a149a2c4cef8aad7b4b330f8 WHIRLPOOL 13ca81abc08afd73b557d71dd0041851fedcecc2f525a902c92ba16f6693c1df3a88acceede5c15a2186ef78dea9187d3ffd3212ced5e07c852404a55626cc59
+EBUILD libcxxabi-3.9.0.ebuild 2627 SHA256 5d464837d65821e2467140188d2eb89ee27139fd6085e4215e95ea1c36e1c8fc SHA512 2cf85fde3b6ddb253b3be983ca10e0dfdc9abb4db3d0750953442a90f734ef4c7053c4a6bbd8aab7391e19e73deba3769c2aaaead54162535d545f25f21f6826 WHIRLPOOL 9d9d1d36d34f504ce2184064731673cd1bba0909da6ab302b4791c5e1e826113ca6a11082e68b1a8bec99f36dea3fc251b4b9d57d4542922a66119cee9a33b20
+EBUILD libcxxabi-3.9.1.ebuild 2646 SHA256 e2b66afa5832eb93692a7e1835458a3b185d11e200c03398e903b2d4d606ec67 SHA512 4849fbfe11876cb403d78852abd6df27a0dbeada69c15fd1af6e7a20d742fcca064b227592e3ac69e32546cef94c790f28d63d40c8522213a9910f0b625ea379 WHIRLPOOL 9ceaa5958dd457d1143ec014babeee8268f4021e1a0c46fe89bb133020fc2e072673ff88c9f2941b2378f8785afc97fd9936f84bf19d3e90ceb7fb385501cf68
+EBUILD libcxxabi-4.0.1.ebuild 2493 SHA256 aa3174509589fe01b8db0e8735fa77ea85de74febf2c82fce113bb1a361d5619 SHA512 528dc5eac2c834f320b1b24277af6cbd6468c0686b95116de1d6dd8dd188dbee899717921aa358e3e317f02067b6dffb8fd375090d5f29693bcb26fe7600be99 WHIRLPOOL 85d8c8a910d0cf274fb67cc8dd587fe0abb1007c689eacc63f4bb0fe287ed3bd4cc2cb7895248ab2db012425e763145b1561f8e7ca411ce74fdf3f719f8fb44e
+EBUILD libcxxabi-5.0.0.ebuild 2323 SHA256 38c748918bf659d70f25a002769b85a80ffd84b9a3346754531213031789d808 SHA512 540a980d884a5c1e7aaf627a855a6a9f64e8fe8ef89513ed10fbc56aeff77d160a91467c79348a3538273da1f3786695ade4c18a644aa46d97333ec411f26584 WHIRLPOOL 0e7fcc14aca06d4ba1d196a6b71400691913f69594cf60e09db58092ddcf3f8e5c92028488013622d030441ccd1011c00da75f9cd1f111c3202555da1dc2f142
+EBUILD libcxxabi-5.0.9999.ebuild 2481 SHA256 3f0a931405eda8ac9439671c27067f2a30757e4bfee77463a3a374ed5110456d SHA512 5ab1ef9d6ca1be4f39e4e56923e216dc9fba5bdfa7c5e75b2da3253036272f230d3c24d4a074ce33a86d9431582d532a670919414e0b2b50128f942a47d4d635 WHIRLPOOL 2b974d8daeac1c438827045d023b0b15d687f59145036befaa8a0830d3faaa400ece03a839869ac201aec947661032d105f110e502417b8499b0cd52c3d082c9
+EBUILD libcxxabi-9999.ebuild 2487 SHA256 cc359c7f99f186a022f93678a52161bb9b45d2bf999509c4a7b153d05d00c0cf SHA512 6d7c0fe386a53c087ca672b9ab7664cef0e931b2ca60aeb1d0a15dc1eab930d1ad4a472066008e3d015c175577d95858de64187acee83a7a799ed114fdcea2ed WHIRLPOOL aecf3e7b7103f1fb8afda2e38d3fabbda21ed01b3c38a8961b8f710a8183d57810a0ae0423eda1a979bd3338164e9fa8bcb5708af78b262e13d62a0a7bca4b3a
+MISC ChangeLog 963 SHA256 f60b92e35ac35a26e2c18b5cc1f24a7dead4b7a48580ba755ab1714458cdcd48 SHA512 1a91034c34d963dc0ddd6e2d80e98f7f682135e5879c0a4c06700265b03bba7b71e0f5d8078291dda1b4bcdc3615d67c042ab7e24d9ad0aa58c17b9ab43e607b WHIRLPOOL 4cb1b6c8e316f148d739ed54687708b5666748f4aeb925bb77d28bb92eb1971778e08b27c176168faabc51e1e2815fbb028e28f9e49ca34f0f6da478bd50eda1
+MISC metadata.xml 350 SHA256 19efe268c0747e237a6e9f54dde3471b5b562fa6d7f698853bc09a06aa1b0460 SHA512 317dd7b59a711dd0461b5369f7e31ea196882b018e047e1dbae8077274d06cb68542c8762efb852cce0b8021bedea69c19aa0c124b9414a36cf1a9c00e0b9703 WHIRLPOOL 0f5edd5b7c2c2bed62c5a69286bf2f8f465b31716a8670549717b10f1f78a5b529d225244869ca2fc5680ccf043208905e1e34508dc4f74c639572d938db9d6e
diff --git a/sys-libs/libcxxabi/files/libcxxabi-3.9.0-cmake-path.patch b/sys-libs/libcxxabi/files/libcxxabi-3.9.0-cmake-path.patch
new file mode 100644
index 000000000000..b80c0f572208
--- /dev/null
+++ b/sys-libs/libcxxabi/files/libcxxabi-3.9.0-cmake-path.patch
@@ -0,0 +1,34 @@
+From 8d4d9af454a985d8c10ffdb0c56e87efec25ddff Mon Sep 17 00:00:00 2001
+From: Logan Chien <tzuhsiang.chien@gmail.com>
+Date: Mon, 3 Oct 2016 11:08:17 +0000
+Subject: [PATCH] [CMake] Fix libc++abi standalone cmake build.
+
+The cmake files install directory has been changed to
+${prefix}/lib/cmake/llvm since r259821.  Searching cmake modules in
+${prefix}/share/llvm/cmake will result in fatal errors.
+
+This commit fixes the out-of-tree build by changing the CMake module
+search path to: "$(llvm-config --obj-root)/lib/cmake/llvm"
+
+
+git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@283100 91177308-0d34-0410-b5e6-96231b3b80d8
+---
+ CMakeLists.txt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a33cf48..e75c0b8 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -49,7 +49,7 @@ if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+     set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
+     set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
+     set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
+-    set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
++    set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm")
+     set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py")
+   else()
+     message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
+-- 
+2.10.1
+
diff --git a/sys-libs/libcxxabi/files/libcxxabi-3.9.0-test-unwind.patch b/sys-libs/libcxxabi/files/libcxxabi-3.9.0-test-unwind.patch
new file mode 100644
index 000000000000..1005cb7d133e
--- /dev/null
+++ b/sys-libs/libcxxabi/files/libcxxabi-3.9.0-test-unwind.patch
@@ -0,0 +1,37 @@
+From fff85c801ae564a09479e1e8e4cf81977536c550 Mon Sep 17 00:00:00 2001
+From: Petr Hosek <phosek@chromium.org>
+Date: Mon, 8 Aug 2016 22:09:54 +0000
+Subject: [PATCH] Do not depend on unwind when building standalone
+
+When libcxxabi is being built standalone, unwind dependency is not
+available, so do not use it even when LLVM unwinder is being
+requested.
+
+Differential Revision: https://reviews.llvm.org/D23228
+
+git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@278058 91177308-0d34-0410-b5e6-96231b3b80d8
+---
+ test/CMakeLists.txt | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
+index 31b5d1d..3a489bf 100644
+--- a/test/CMakeLists.txt
++++ b/test/CMakeLists.txt
+@@ -36,10 +36,9 @@ endif()
+ 
+ if (NOT LIBCXXABI_BUILT_STANDALONE)
+   list(APPEND LIBCXXABI_TEST_DEPS cxx)
+-endif()
+-
+-if (LIBCXXABI_USE_LLVM_UNWINDER)
+-  list(APPEND LIBCXXABI_TEST_DEPS unwind)
++  if (LIBCXXABI_USE_LLVM_UNWINDER)
++    list(APPEND LIBCXXABI_TEST_DEPS unwind)
++  endif()
+ endif()
+ 
+ add_lit_testsuite(check-libcxxabi "Running libcxxabi tests"
+-- 
+2.10.1
+
diff --git a/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild b/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild
new file mode 100644
index 000000000000..9e89b462247b
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-3.9.0.ebuild
@@ -0,0 +1,98 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+# also needs libcxx sources for headers
+SRC_URI="https://llvm.org/releases/${PV}/${P}.src.tar.xz
+	https://llvm.org/releases/${PV}/${P/abi/}.src.tar.xz"
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="elibc_musl libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-3.9.0
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+S=${WORKDIR}/${P}.src
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	use test && python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# backport cmake path fix for llvm-3.9+
+	eapply "${FILESDIR}/${P}-cmake-path.patch"
+	# kill stray unwind test dep in stand-alone builds
+	eapply "${FILESDIR}/${P}-test-unwind.patch"
+}
+
+src_configure() {
+	NATIVE_LIBDIR=$(get_libdir)
+	cmake-multilib_src_configure
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLLVM_LIBDIR_SUFFIX=${NATIVE_LIBDIR#lib}
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLLVM_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx-${PV}.src/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+		# this only needs to exist, it does not have to make sense
+		-DLIBCXXABI_LIBUNWIND_SOURCES="${T}"
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
+		)
+	fi
+	if use elibc_musl; then
+		local -x CPPFLAGS="${CPPFLAGS} -D_LIBCPP_HAS_MUSL_LIBC=1"
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/libcxxabi-3.9.1.ebuild b/sys-libs/libcxxabi/libcxxabi-3.9.1.ebuild
new file mode 100644
index 000000000000..57cba7ebc6f2
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-3.9.1.ebuild
@@ -0,0 +1,98 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+# also needs libcxx sources for headers
+SRC_URI="https://llvm.org/releases/${PV}/${P}.src.tar.xz
+	https://llvm.org/releases/${PV}/${P/abi/}.src.tar.xz"
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="amd64 ~arm64 x86"
+IUSE="elibc_musl libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-3.9.0
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+S=${WORKDIR}/${P}.src
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	use test && python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# backport cmake path fix for llvm-3.9+
+	eapply "${FILESDIR}/${PN}-3.9.0-cmake-path.patch"
+	# kill stray unwind test dep in stand-alone builds
+	eapply "${FILESDIR}/${PN}-3.9.0-test-unwind.patch"
+}
+
+src_configure() {
+	NATIVE_LIBDIR=$(get_libdir)
+	cmake-multilib_src_configure
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLLVM_LIBDIR_SUFFIX=${NATIVE_LIBDIR#lib}
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLLVM_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx-${PV}.src/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+		# this only needs to exist, it does not have to make sense
+		-DLIBCXXABI_LIBUNWIND_SOURCES="${T}"
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
+		)
+	fi
+	if use elibc_musl; then
+		local -x CPPFLAGS="${CPPFLAGS} -D_LIBCPP_HAS_MUSL_LIBC=1"
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/libcxxabi-4.0.1.ebuild b/sys-libs/libcxxabi/libcxxabi-4.0.1.ebuild
new file mode 100644
index 000000000000..860d240849b4
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-4.0.1.ebuild
@@ -0,0 +1,94 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib llvm python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+SRC_URI="https://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz
+	https://releases.llvm.org/${PV/_//}/libcxx-${PV/_/}.src.tar.xz"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="+libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+# LLVM 4 required for llvm-config --cmakedir
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-4
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+S=${WORKDIR}/${P/_/}.src
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	default
+
+	mv libcxx-* libcxx || die
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+		# this only needs to exist, it does not have to make sense
+		# FIXME: remove this once https://reviews.llvm.org/D25314 is merged
+		-DLIBCXXABI_LIBUNWIND_SOURCES="${T}"
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
+		)
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/libcxxabi-5.0.0.ebuild b/sys-libs/libcxxabi/libcxxabi-5.0.0.ebuild
new file mode 100644
index 000000000000..edbb3a871a65
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-5.0.0.ebuild
@@ -0,0 +1,91 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib llvm python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+SRC_URI="https://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz
+	https://releases.llvm.org/${PV/_//}/libcxx-${PV/_/}.src.tar.xz"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="+libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+# LLVM 4 required for llvm-config --cmakedir
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-4
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+S=${WORKDIR}/${P/_/}.src
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	default
+
+	mv libcxx-* libcxx || die
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
+		)
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/libcxxabi-5.0.9999.ebuild b/sys-libs/libcxxabi/libcxxabi-5.0.9999.ebuild
new file mode 100644
index 000000000000..1f5409df9c9d
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-5.0.9999.ebuild
@@ -0,0 +1,96 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib git-r3 llvm python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/libcxxabi.git
+	https://github.com/llvm-mirror/libcxxabi.git"
+EGIT_BRANCH="release_50"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+# LLVM 4 required for llvm-config --cmakedir
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-4
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	# we need the headers
+	git-r3_fetch "https://git.llvm.org/git/libcxx.git
+		https://github.com/llvm-mirror/libcxx.git"
+	git-r3_fetch
+
+	git-r3_checkout https://llvm.org/git/libcxx.git \
+		"${WORKDIR}"/libcxx
+	git-r3_checkout
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLIT_COMMAND="${EPREFIX}"/usr/bin/lit
+		)
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/libcxxabi-9999.ebuild b/sys-libs/libcxxabi/libcxxabi-9999.ebuild
new file mode 100644
index 000000000000..c2be84f86a22
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-9999.ebuild
@@ -0,0 +1,96 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib git-r3 llvm python-any-r1
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/libcxxabi.git
+	https://github.com/llvm-mirror/libcxxabi.git"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+libunwind +static-libs test"
+
+RDEPEND="
+	libunwind? (
+		|| (
+			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
+			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
+		)
+	)"
+# LLVM 4 required for llvm-config --cmakedir
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-4
+	test? ( >=sys-devel/clang-3.9.0
+		~sys-libs/libcxx-${PV}[libcxxabi(-)]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	# we need the headers
+	git-r3_fetch "https://git.llvm.org/git/libcxx.git
+		https://github.com/llvm-mirror/libcxx.git"
+	git-r3_fetch
+
+	git-r3_checkout https://llvm.org/git/libcxx.git \
+		"${WORKDIR}"/libcxx
+	git-r3_checkout
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="-vv"
+		)
+	fi
+	cmake-utils_src_configure
+}
+
+multilib_src_test() {
+	local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+
+	[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+	sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
+
+	cmake-utils_src_make check-libcxxabi
+}
+
+multilib_src_install_all() {
+	insinto /usr/include/libcxxabi
+	doins -r include/.
+}
diff --git a/sys-libs/libcxxabi/metadata.xml b/sys-libs/libcxxabi/metadata.xml
new file mode 100644
index 000000000000..78c7d7d981b6
--- /dev/null
+++ b/sys-libs/libcxxabi/metadata.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>llvm@gentoo.org</email>
+	</maintainer>
+	<use>
+		<flag name="libunwind">Use libunwind instead of libgcc_s for stack unwinding, thus avoiding dependency on gcc</flag>
+	</use>
+</pkgmetadata>