[gentoo-commits] repo/gentoo:master commit in: sys-libs/libcxx/

[Michał Górny]

commit:     d98964c73596565cbab64a7689e2d5f95e6471fd
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Mon Jun 26 14:48:12 2017 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Jun 27 19:18:02 2017 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d98964c7

sys-libs/libcxx: Bump to 4.0.1

 sys-libs/libcxx/Manifest            |   1 +
 sys-libs/libcxx/libcxx-4.0.1.ebuild | 199 ++++++++++++++++++++++++++++++++++++
 2 files changed, 200 insertions(+)

diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 02075e1b46f..7a4869aee1d 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -3,3 +3,4 @@ DIST libcxx-3.8.1.src.tar.xz 1074164 SHA256 77d7f3784c88096d785bd705fa1bab7031ce
 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-4.0.0.src.tar.xz 1450376 SHA256 4f4d33c4ad69bf9e360eebe6b29b7b19486948b1a41decf89d4adec12473cf96 SHA512 6dad794c00919955e14710def169cdcde8a1743431479e993c4a6a3c87c2fd9f5dbd6e17542e524981eed0783dce70384c356b74ef3c6d70598c6ff03454b1dd WHIRLPOOL 2c5074087e306d100c96ae5b7175e1e1792f0317c7be6231692c80423ec716732c08293fe14fe6da5cd52d8709d6ce0a240009df24e717ab0eb9093ac7679af7
+DIST libcxx-4.0.1.src.tar.xz 1446380 SHA256 520a1171f272c9ff82f324d5d89accadcec9bc9f3c78de11f5575cdb99accc4c SHA512 91f3f397be606989be99865d0b279557f9afb93f7a74ed10c3a74f4440e38b5694ddf452bbf2f487cacd4391606dd5c7edfe5130f2de19e2acfd6cce619d028a WHIRLPOOL fe7c71e8dc2d17d14e94896837229c5ed872e7c04aea79a207e8fa98aa4539a7445e402b848d0c0d009f154f00d970159ad009d16bfdb9ae012ce5c7c6d9ba51

diff --git a/sys-libs/libcxx/libcxx-4.0.1.ebuild b/sys-libs/libcxx/libcxx-4.0.1.ebuild
new file mode 100644
index 00000000000..ce256df08e8
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-4.0.1.ebuild
@@ -0,0 +1,199 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+# Ninja provides better scalability and cleaner verbose output, and is used
+# throughout all LLVM projects.
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit cmake-multilib llvm python-any-r1 toolchain-funcs
+
+DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
+HOMEPAGE="http://libcxx.llvm.org/"
+SRC_URI="http://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="elibc_glibc elibc_musl +libcxxabi libcxxrt +libunwind +static-libs test"
+REQUIRED_USE="libunwind? ( || ( libcxxabi libcxxrt ) )
+	?? ( libcxxabi libcxxrt )"
+
+RDEPEND="
+	libcxxabi? ( ~sys-libs/libcxxabi-${PV}[libunwind=,static-libs?,${MULTILIB_USEDEP}] )
+	libcxxrt? ( sys-libs/libcxxrt[libunwind=,static-libs?,${MULTILIB_USEDEP}] )
+	!libcxxabi? ( !libcxxrt? ( >=sys-devel/gcc-4.7:=[cxx] ) )"
+# LLVM 4 required for llvm-config --cmakedir
+# clang-3.9.0 installs necessary target symlinks unconditionally
+# which removes the need for MULTILIB_USEDEP
+DEPEND="${RDEPEND}
+	test? ( >=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )
+	app-arch/xz-utils
+	>=sys-devel/llvm-4"
+
+S=${WORKDIR}/${P/_/}.src
+
+DOCS=( CREDITS.TXT )
+
+PATCHES=(
+	# Add link flag "-Wl,-z,defs" to avoid underlinking; this is needed in a
+	# out-of-tree build.
+	"${FILESDIR}/${PN}-3.9-cmake-link-flags.patch"
+)
+
+# 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
+
+	if ! use libcxxabi && ! use libcxxrt && ! 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
+	if tc-is-gcc && [[ $(gcc-version) < 4.7 ]] ; then
+		eerror "${PN} needs to be built with gcc-4.7 or later (or other"
+		eerror "conformant compilers). Please use gcc-config to switch to"
+		eerror "gcc-4.7 or later version."
+		die
+	fi
+}
+
+multilib_src_configure() {
+	local cxxabi cxxabi_incs
+	if use libcxxabi; then
+		cxxabi=libcxxabi
+		cxxabi_incs="${EPREFIX}/usr/include/libcxxabi"
+	elif use libcxxrt; then
+		cxxabi=libcxxrt
+		cxxabi_incs="${EPREFIX}/usr/include/libcxxrt"
+	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
+
+	# 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
+	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
+			# get the full library list out of 'pretend mode'
+			# and grep it for libclang_rt references
+			local args=( $($(tc-getCC) -### -x c - 2>&1 | tail -n 1) )
+			local i
+			for i in "${args[@]}"; do
+				if [[ ${i} == *libclang_rt* ]]; then
+					want_gcc_s=OFF
+					extra_libs+=( "${i}" )
+				fi
+			done
+		fi
+	fi
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DLIBCXX_LIBDIR_SUFFIX=${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=${want_gcc_s}
+		-DLIBCXX_INCLUDE_TESTS=$(usex test)
+		-DCMAKE_SHARED_LINKER_FLAGS="${extra_libs[*]} ${LDFLAGS}"
+	)
+
+	if use test; then
+		mycmakeargs+=(
+			# this can be any directory, it just needs to exist...
+			# FIXME: remove this once https://reviews.llvm.org/D25093 is merged
+			-DLLVM_MAIN_SRC_DIR="${T}"
+			-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-libcxx
+}
+
+# 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=$(usex libcxxabi "libc++abi.a" "$(usex libcxxrt "libcxxrt.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" "$(usex libcxxrt "libcxxrt.so" "libsupc++.a")")
+
+	mv "${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-utils_src_install
+	gen_shared_ldscript
+	use static-libs && gen_static_ldscript
+}
+
+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."
+}