From 0c100b7dd2b30e75b799d806df4ef899fd98e1ea Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@koprulu.sector>
Date: Sat, 16 Apr 2022 13:07:24 +0100
Subject: gentoo resync : 16.04.2022

---
 sys-libs/libcxx/Manifest                  |   3 +-
 sys-libs/libcxx/libcxx-14.0.0.9999.ebuild | 220 ------------------------------
 sys-libs/libcxx/libcxx-14.0.1.ebuild      | 220 ++++++++++++++++++++++++++++++
 3 files changed, 222 insertions(+), 221 deletions(-)
 delete mode 100644 sys-libs/libcxx/libcxx-14.0.0.9999.ebuild
 create mode 100644 sys-libs/libcxx/libcxx-14.0.1.ebuild

(limited to 'sys-libs/libcxx')

diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 8888c6cc2b38..1a4a61ee604b 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -9,11 +9,12 @@ DIST llvmorg-12.0.1.tar.gz 134259748 BLAKE2B f41de787bc73ff2edfda1b22cc8602be6f6
 DIST llvmorg-13.0.0.tar.gz 147270176 BLAKE2B 628f316b580e1edf3a58d4825b724df759e6ed2a4116802470c04562caefc392fa325c91f388036365a2e45a9595cca6d3557fab12984fc8bcfef29c9116d822 SHA512 8004c05d32b9720fb3391783621690c1df9bd1e97e72cbff9192ed88a84b0acd303b61432145fa917b5b5e548c8cee29b24ef8547dcc8677adf4816e7a8a0eb2
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 DIST llvmorg-14.0.0.tar.gz 158057350 BLAKE2B 7052684c620a5eaf52beeee4591adf58cfec9e64a5ee0b24f3d5849fd4df5b006e2906a839cb806ac69c33fab6013c58589b1d74e4fb8558758edcb7d5065064 SHA512 eb5acf96b5e2c59bd07579f7ebe73018b0dd6e2f2d9a5a3c7986320e88febd837d1084b9e5313a2264310342193044629d228337cc76dd2b8527dc0a8bdda999
+DIST llvmorg-14.0.1.tar.gz 158074615 BLAKE2B bf80366461580058494eb101646efcd1a8b55a66818a710c2eb8c649bf88c02fe4552cecf4c1c8637a64e7cee8d644bca31aafc804765ed18f2b5e2975dd6c92 SHA512 0a15aa9cfc978a7b03a1659a2affad65ede66d280f5c12bf0beaaf194cd7bdd57ff438b5f40e64c1e1b88f368de99be349e9d30b544d2bbe4a50f0ebed3307f2
 EBUILD libcxx-11.1.0.ebuild 6638 BLAKE2B 1c141e7dc80e2e4a47d7619500626458c931903c7efc1d5b1f3173ff927ec682b277ed0a932af1681df1416f499d98fd1e8c024ddd14d839a543bf42f673e896 SHA512 4d37e1d3077908dd49fd55b8422f12547848d58dede2b6f9be58d993862d71e47a45c6ce383677b46c178dbfd6c22559beb7f7745f3b589039208d63585174e2
 EBUILD libcxx-12.0.1.ebuild 6677 BLAKE2B 32a2f3bbff395d3c129cd4d168a8cb0ee1074c3fc164bf9a33f3287852c07af3e7443018b3fa31036f851cf5544bf80db0579ba2dfa2a3420801a6aef0dd6b05 SHA512 3820b6a249a36cf12ba72b4c4a3847ec035265ce23388dcdbc0547c5708737eee4cf449b14370badc13be3f79ecda2f3c788ac6c7f2f8063c3dd53b1e7b1bf62
 EBUILD libcxx-13.0.0.ebuild 6756 BLAKE2B c27aba7517136e19bdebd4f864958922000fd9d59791c0ae0407afffa5c39db21c3cbf2655532453679a54beddd46ad90df2a9482fed99501340f6b0073e264b SHA512 0516aed74ebe4cb170c2b3a975005f054e1227cdd8ae4807c7f1e6796055b09abce148a44425ffd12dde88eb8f638559e3a3dd6c7e29b1fe2bdc86123783f941
 EBUILD libcxx-13.0.1.ebuild 6781 BLAKE2B 6ada751bfe1f8e1980e4c20b2a45f237c6630deb4fbb695701b596af17b78391e6a2db99101371a6577f4d414933cf4143d0b60d29fd62e6ec8d6ef3f563b77d SHA512 9d389d1323e866d9b66881b215a2625eee8263a6df790ef5027462b0c3de5421d4ae6077d5861fdfe8adad9d66e34a12de754149e1a1764a42fd824b900c03ac
-EBUILD libcxx-14.0.0.9999.ebuild 6893 BLAKE2B d45f14e1ecf594063281916fdd8d63bca9fe910e2c51b7d9ca03d363bb1fe9ec06504af44fc61be1f848094ef76ea752ffe479553e9b990544482c69211bea67 SHA512 814773f6731309b31e46636e6e3ed9b4508ed60154eda14826015bf0da75ff4a2cebdacbb1e1535958d3af1d1f10b1e552126eb6aebed945f3a034d36d1b9e1e
 EBUILD libcxx-14.0.0.ebuild 6937 BLAKE2B 04722fb717fcf971cfad08599681619a1f003ef487ba73dded68aa1661a8ad64369f30844379750045e81df0959d5d3b2416e9fbe4b2f7faf7043456ed913abe SHA512 ae21926685648e200c8ad649d7172c70962b17fc447a6c5b0d7979d31a7fd3428f54ed43efb24ee1af1868ef059d7519a886b427b5cd18ce0489d7b3dee3cd04
+EBUILD libcxx-14.0.1.ebuild 6934 BLAKE2B 1a31c9fbee3e7ada37bfde446b90ce0aad7a9b30445a094b2ff52886e16aaedb1a09799f0fdb7aa99e80e4c3ac46e2cc75acd6247f48ad428d59f48d93272415 SHA512 f3b27537fc2f8448f92d15cd3220273a2ecd9dd46efe3b5ab3afd43d78de17ce0f3fa02b082b1943b96894a448fbc296d0b61d495204ef372ef1da8e71ad346d
 EBUILD libcxx-15.0.0.9999.ebuild 6893 BLAKE2B d45f14e1ecf594063281916fdd8d63bca9fe910e2c51b7d9ca03d363bb1fe9ec06504af44fc61be1f848094ef76ea752ffe479553e9b990544482c69211bea67 SHA512 814773f6731309b31e46636e6e3ed9b4508ed60154eda14826015bf0da75ff4a2cebdacbb1e1535958d3af1d1f10b1e552126eb6aebed945f3a034d36d1b9e1e
 MISC metadata.xml 622 BLAKE2B 33ff3f89844694f08cdcdb12d7098ad937041c31aa6f453fbd887bfebec688bc05552f9a39431daccd2b309a58c2fb75b04a6350410f90beb96f32c14ab3ca95 SHA512 8b3d12f8904c336cc35f31352014ffe247dd4475f143921cdd56e5396590ebd64fb700df64f76e83aece127d8ed39af5f45da086fa75fca841c9a5ad767cbed2
diff --git a/sys-libs/libcxx/libcxx-14.0.0.9999.ebuild b/sys-libs/libcxx/libcxx-14.0.0.9999.ebuild
deleted file mode 100644
index 0562667b5a4b..000000000000
--- a/sys-libs/libcxx/libcxx-14.0.0.9999.ebuild
+++ /dev/null
@@ -1,220 +0,0 @@
-# Copyright 1999-2022 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-CMAKE_ECLASS=cmake
-PYTHON_COMPAT=( python3_{8..10} )
-inherit cmake-multilib 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="+libcxxabi +libunwind static-libs test"
-REQUIRED_USE="libunwind? ( libcxxabi )"
-RESTRICT="!test? ( test )"
-
-RDEPEND="
-	libcxxabi? ( ~sys-libs/libcxxabi-${PV}[libunwind=,static-libs?,${MULTILIB_USEDEP}] )
-	!libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )"
-# llvm-6 for new lit options
-# clang-3.9.0 installs necessary target symlinks unconditionally
-# which removes the need for MULTILIB_USEDEP
-DEPEND="${RDEPEND}
-	>=sys-devel/llvm-6"
-BDEPEND="
-	${PYTHON_DEPS}
-	test? (
-		>=dev-util/cmake-3.16
-		>=sys-devel/clang-3.9.0
-		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_PATCHSET=9999-1
-llvm.org_set_globals
-
-python_check_deps() {
-	use test || return 0
-	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 dev-lang/llvm; then
-		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="${EPREFIX}/usr/include/libcxxabi"
-	else
-		local gcc_inc="${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() {
-	# we want -lgcc_s for unwinder, and for compiler runtime when using
-	# gcc, clang with gcc runtime (or any unknown compiler)
-	local extra_libs=() want_gcc_s=ON want_compiler_rt=OFF
-	if use libunwind; then
-		# work-around missing -lunwind upstream
-		extra_libs+=( -lunwind )
-		# if we're using libunwind and clang with compiler-rt, we want
-		# to link to compiler-rt instead of -lgcc_s
-		if tc-is-clang; then
-			local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
-			   ${LDFLAGS} -print-libgcc-file-name)
-			if [[ ${compiler_rt} == *libclang_rt* ]]; then
-				want_gcc_s=OFF
-				want_compiler_rt=ON
-				extra_libs+=( "${compiler_rt}" )
-			fi
-		fi
-	elif [[ ${CHOST} == *-darwin* ]] && tc-is-clang; then
-		# clang-based darwin prefix disables libunwind useflag during
-		# bootstrap, because libunwind is not in the prefix yet.
-		# override the default, though, because clang based libcxx
-		# should never use gcc_s on Darwin.
-		want_gcc_s=OFF
-		# compiler_rt is not available in EPREFIX during bootstrap,
-		# so we cannot link to it yet anyway, so keep the defaults
-		# of want_compiler_rt=OFF and extra_libs=()
-	fi
-
-	# bootstrap: cmake is unhappy if compiler can't link to stdlib
-	local nolib_flags=( -nodefaultlibs -lc )
-	if ! test_compiler; then
-		if test_compiler "${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=(
-		-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_HAS_GCC_S_LIB=${want_gcc_s}
-		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
-		-DLIBCXX_INCLUDE_TESTS=$(usex test)
-		-DLIBCXX_USE_COMPILER_RT=${want_compiler_rt}
-		-DLIBCXX_HAS_ATOMIC_LIB=${want_gcc_s}
-		-DLIBCXX_TARGET_TRIPLE="${CHOST}"
-		-DCMAKE_SHARED_LINKER_FLAGS="${extra_libs[*]} ${LDFLAGS}"
-	)
-
-	if use test; then
-		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
-		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
-
-		mycmakeargs+=(
-			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-			-DLLVM_LIT_ARGS="$(get_lit_flags);--param=cxx_under_test=${clang_path}"
-			-DLIBCXX_LINK_TESTS_WITH_SHARED_LIBCXXABI=ON
-			-DPython3_EXECUTABLE="${PYTHON}"
-		)
-	fi
-	cmake_src_configure
-}
-
-multilib_src_test() {
-	local -x LIT_PRESERVES_TMP=1
-	cmake_build check-cxx
-}
-
-# Usage: deps
-gen_ldscript() {
-	local output_format
-	output_format=$($(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 ( $@ )
-END_LDSCRIPT
-}
-
-gen_static_ldscript() {
-	local libdir=$(get_libdir)
-	local cxxabi_lib=$(usex libcxxabi "libc++abi.a" "libsupc++.a")
-
-	# Move it first.
-	mv "${ED}/usr/${libdir}/libc++.a" "${ED}/usr/${libdir}/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 ${cxxabi_lib} $(usex libunwind libunwind.a libgcc_eh.a)"
-	# On Linux/glibc it does not link without libpthread or libdl. It is
-	# fine on FreeBSD.
-	use elibc_glibc && deps+=" libpthread.a libdl.a"
-
-	gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.a" || die
-}
-
-gen_shared_ldscript() {
-	local libdir=$(get_libdir)
-	# libsupc++ doesn't have a shared version
-	local cxxabi_lib=$(usex libcxxabi "libc++abi.so" "libsupc++.a")
-
-	mv "${ED}/usr/${libdir}/libc++.so" "${ED}/usr/${libdir}/libc++_shared.so" || die
-	local deps="libc++_shared.so ${cxxabi_lib} $(usex libunwind libunwind.so libgcc_s.so)"
-
-	gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.so" || die
-}
-
-multilib_src_install() {
-	cmake_src_install
-	if [[ ${CHOST} != *-darwin* ]] ; then
-		gen_shared_ldscript
-		use static-libs && gen_static_ldscript
-	fi
-}
-
-pkg_postinst() {
-	elog "This package (${PN}) is mainly intended as a replacement for the C++"
-	elog "standard library when using clang."
-	elog "To use it, instead of libstdc++, use:"
-	elog "    clang++ -stdlib=libc++"
-	elog "to compile your C++ programs."
-}
diff --git a/sys-libs/libcxx/libcxx-14.0.1.ebuild b/sys-libs/libcxx/libcxx-14.0.1.ebuild
new file mode 100644
index 000000000000..60e533aec52c
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-14.0.1.ebuild
@@ -0,0 +1,220 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{8..10} )
+inherit cmake-multilib 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="~amd64 ~arm ~arm64 ~riscv ~x86 ~x64-macos"
+IUSE="+libcxxabi +libunwind static-libs test"
+REQUIRED_USE="libunwind? ( libcxxabi )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	libcxxabi? ( ~sys-libs/libcxxabi-${PV}[libunwind=,static-libs?,${MULTILIB_USEDEP}] )
+	!libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )"
+# llvm-6 for new lit options
+# clang-3.9.0 installs necessary target symlinks unconditionally
+# which removes the need for MULTILIB_USEDEP
+DEPEND="${RDEPEND}
+	>=sys-devel/llvm-6"
+BDEPEND="
+	${PYTHON_DEPS}
+	test? (
+		>=dev-util/cmake-3.16
+		>=sys-devel/clang-3.9.0
+		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_PATCHSET=9999-1
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	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 dev-lang/llvm; then
+		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="${EPREFIX}/usr/include/libcxxabi"
+	else
+		local gcc_inc="${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() {
+	# we want -lgcc_s for unwinder, and for compiler runtime when using
+	# gcc, clang with gcc runtime (or any unknown compiler)
+	local extra_libs=() want_gcc_s=ON want_compiler_rt=OFF
+	if use libunwind; then
+		# work-around missing -lunwind upstream
+		extra_libs+=( -lunwind )
+		# if we're using libunwind and clang with compiler-rt, we want
+		# to link to compiler-rt instead of -lgcc_s
+		if tc-is-clang; then
+			local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
+			   ${LDFLAGS} -print-libgcc-file-name)
+			if [[ ${compiler_rt} == *libclang_rt* ]]; then
+				want_gcc_s=OFF
+				want_compiler_rt=ON
+				extra_libs+=( "${compiler_rt}" )
+			fi
+		fi
+	elif [[ ${CHOST} == *-darwin* ]] && tc-is-clang; then
+		# clang-based darwin prefix disables libunwind useflag during
+		# bootstrap, because libunwind is not in the prefix yet.
+		# override the default, though, because clang based libcxx
+		# should never use gcc_s on Darwin.
+		want_gcc_s=OFF
+		# compiler_rt is not available in EPREFIX during bootstrap,
+		# so we cannot link to it yet anyway, so keep the defaults
+		# of want_compiler_rt=OFF and extra_libs=()
+	fi
+
+	# bootstrap: cmake is unhappy if compiler can't link to stdlib
+	local nolib_flags=( -nodefaultlibs -lc )
+	if ! test_compiler; then
+		if test_compiler "${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=(
+		-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_HAS_GCC_S_LIB=${want_gcc_s}
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		-DLIBCXX_INCLUDE_TESTS=$(usex test)
+		-DLIBCXX_USE_COMPILER_RT=${want_compiler_rt}
+		-DLIBCXX_HAS_ATOMIC_LIB=${want_gcc_s}
+		-DLIBCXX_TARGET_TRIPLE="${CHOST}"
+		-DCMAKE_SHARED_LINKER_FLAGS="${extra_libs[*]} ${LDFLAGS}"
+	)
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags);--param=cxx_under_test=${clang_path}"
+			-DLIBCXX_LINK_TESTS_WITH_SHARED_LIBCXXABI=ON
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-cxx
+}
+
+# Usage: deps
+gen_ldscript() {
+	local output_format
+	output_format=$($(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 ( $@ )
+END_LDSCRIPT
+}
+
+gen_static_ldscript() {
+	local libdir=$(get_libdir)
+	local cxxabi_lib=$(usex libcxxabi "libc++abi.a" "libsupc++.a")
+
+	# Move it first.
+	mv "${ED}/usr/${libdir}/libc++.a" "${ED}/usr/${libdir}/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 ${cxxabi_lib} $(usex libunwind libunwind.a libgcc_eh.a)"
+	# On Linux/glibc it does not link without libpthread or libdl. It is
+	# fine on FreeBSD.
+	use elibc_glibc && deps+=" libpthread.a libdl.a"
+
+	gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.a" || die
+}
+
+gen_shared_ldscript() {
+	local libdir=$(get_libdir)
+	# libsupc++ doesn't have a shared version
+	local cxxabi_lib=$(usex libcxxabi "libc++abi.so" "libsupc++.a")
+
+	mv "${ED}/usr/${libdir}/libc++.so" "${ED}/usr/${libdir}/libc++_shared.so" || die
+	local deps="libc++_shared.so ${cxxabi_lib} $(usex libunwind libunwind.so libgcc_s.so)"
+
+	gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.so" || die
+}
+
+multilib_src_install() {
+	cmake_src_install
+	if [[ ${CHOST} != *-darwin* ]] ; then
+		gen_shared_ldscript
+		use static-libs && gen_static_ldscript
+	fi
+}
+
+pkg_postinst() {
+	elog "This package (${PN}) is mainly intended as a replacement for the C++"
+	elog "standard library when using clang."
+	elog "To use it, instead of libstdc++, use:"
+	elog "    clang++ -stdlib=libc++"
+	elog "to compile your C++ programs."
+}
-- 
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