Сравнение libcxxabi-14.0.6 с libcxxabi-15.0.7

/usr/portage/sys-libs/libcxxabi/libcxxabi-15.0.7.ebuild 2023-10-09 14:52:35.552368503 +0300
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EAPI=8
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PYTHON_COMPAT=( python3_{9..10} )
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inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs
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PYTHON_COMPAT=( python3_{9..11} )
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inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
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	toolchain-funcs
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DESCRIPTION="Low level support for a standard C++ library"
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HOMEPAGE="https://libcxxabi.llvm.org/"
......
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LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
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SLOT="0"
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KEYWORDS="amd64 arm arm64 ~riscv sparc x86 ~x64-macos"
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IUSE="+libunwind +static-libs test"
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IUSE="+clang +static-libs test"
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REQUIRED_USE="test? ( clang )"
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RESTRICT="!test? ( test )"
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RDEPEND="
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	libunwind? (
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		|| (
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			>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
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			>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
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		)
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	)
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# in 15.x, cxxabi.h is moving from libcxx to libcxxabi
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RDEPEND+="
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	!<sys-libs/libcxx-15
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"
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# llvm-6 for new lit options
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DEPEND="
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	${RDEPEND}
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	>=sys-devel/llvm-6
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	sys-devel/llvm:${LLVM_MAJOR}
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"
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BDEPEND="
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	clang? (
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		sys-devel/clang:${LLVM_MAJOR}
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	)
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	!test? (
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		${PYTHON_DEPS}
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	)
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	test? (
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		>=sys-devel/clang-3.9.0
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		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
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	)
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"
......
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	# darwin prefix builds do not have llvm installed yet, so rely on bootstrap-prefix
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	# to set the appropriate path vars to LLVM instead of using llvm_pkg_setup.
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	if [[ ${CHOST} != *-darwin* ]] || has_version sys-devel/llvm; then
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		llvm_pkg_setup
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		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
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	fi
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	python-any-r1_pkg_setup
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}
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multilib_src_configure() {
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	# link against compiler-rt instead of libgcc if we are using clang with libunwind
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	local want_compiler_rt=OFF
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	if use libunwind && [[ $(tc-get-c-rtlib) == compiler-rt ]]; then
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		want_compiler_rt=ON
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	if use clang; then
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		local -x CC=${CHOST}-clang
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		local -x CXX=${CHOST}-clang++
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		strip-unsupported-flags
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	fi
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	# link to compiler-rt
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	local use_compiler_rt=OFF
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	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
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	local libdir=$(get_libdir)
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	local mycmakeargs=(
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		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
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		-DPython3_EXECUTABLE="${PYTHON}"
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		-DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx"
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		-DLLVM_INCLUDE_TESTS=OFF
......
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		-DLIBCXXABI_ENABLE_SHARED=ON
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		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
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		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
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		-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
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		-DLIBCXXABI_USE_COMPILER_RT=${want_compiler_rt}
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		-DLIBCXXABI_USE_COMPILER_RT=${use_compiler_rt}
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		# upstream is omitting standard search path for this
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		# probably because gcc & clang are bundling their own unwind.h
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		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
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		-DLIBCXXABI_TARGET_TRIPLE="${CHOST}"
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		-DLIBCXX_LIBDIR_SUFFIX=
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		-DLIBCXX_ENABLE_SHARED=ON
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		-DLIBCXX_ENABLE_STATIC=OFF
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		-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
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		-DLIBCXX_CXX_ABI=libcxxabi
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		-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
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		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
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		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
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		-DLIBCXX_HAS_GCC_S_LIB=OFF
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		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
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		-DLIBCXX_INCLUDE_TESTS=OFF
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		-DLIBCXX_TARGET_TRIPLE="${CHOST}"
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	)
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	if use test; then
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		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
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		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
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		mycmakeargs+=(
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			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
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			-DLLVM_LIT_ARGS="$(get_lit_flags);--param=cxx_under_test=${clang_path}"
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			-DLLVM_LIT_ARGS="$(get_lit_flags)"
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			-DPython3_EXECUTABLE="${PYTHON}"
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		)
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	fi
......
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multilib_src_install() {
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	DESTDIR="${D}" cmake_build install-cxxabi
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}
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multilib_src_install_all() {
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	insinto /usr/include/libcxxabi
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	doins -r "${WORKDIR}"/libcxxabi/include/.
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}
Спасибо!