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commit: 9a40afcacf984698fb0749752dc7a8cd90f0abc9 |
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Author: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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AuthorDate: Wed Jan 3 21:47:22 2018 +0000 |
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Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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CommitDate: Wed Jan 3 22:21:43 2018 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9a40afca |
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|
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sys-libs/libcxx: Add a live ebuild for 6.0 branch |
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|
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sys-libs/libcxx/libcxx-6.0.9999.ebuild | 210 +++++++++++++++++++++++++++++++++ |
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1 file changed, 210 insertions(+) |
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|
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diff --git a/sys-libs/libcxx/libcxx-6.0.9999.ebuild b/sys-libs/libcxx/libcxx-6.0.9999.ebuild |
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new file mode 100644 |
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index 00000000000..803726e9d93 |
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--- /dev/null |
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+++ b/sys-libs/libcxx/libcxx-6.0.9999.ebuild |
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@@ -0,0 +1,210 @@ |
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+# Copyright 1999-2018 Gentoo Foundation |
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+# Distributed under the terms of the GNU General Public License v2 |
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+ |
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+EAPI=6 |
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+ |
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+# Ninja provides better scalability and cleaner verbose output, and is used |
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+# throughout all LLVM projects. |
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+: ${CMAKE_MAKEFILE_GENERATOR:=ninja} |
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+# (needed due to CMAKE_BUILD_TYPE != Gentoo) |
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+CMAKE_MIN_VERSION=3.7.0-r1 |
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+EGIT_REPO_URI="https://git.llvm.org/git/libcxx.git |
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+ https://github.com/llvm-mirror/libcxx.git" |
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+EGIT_BRANCH="release_60" |
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+PYTHON_COMPAT=( python2_7 ) |
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+ |
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+[[ ${PV} == *9999 ]] && SCM="git-r3" || SCM="" |
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+ |
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+inherit ${SCM} cmake-multilib llvm python-any-r1 toolchain-funcs |
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+ |
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+DESCRIPTION="New implementation of the C++ standard library, targeting C++11" |
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+HOMEPAGE="https://libcxx.llvm.org/" |
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+if [[ ${PV} != *9999 ]] ; then |
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+ SRC_URI="https://llvm.org/releases/${PV}/${P}.src.tar.xz" |
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+ S="${WORKDIR}/${P}.src" |
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+else |
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+ SRC_URI="" |
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+fi |
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+ |
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+LICENSE="|| ( UoI-NCSA MIT )" |
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+SLOT="0" |
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+if [[ ${PV} != *9999 ]] ; then |
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+ KEYWORDS="~amd64 ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux" |
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+else |
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+ KEYWORDS="" |
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+fi |
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+IUSE="elibc_glibc elibc_musl +libcxxabi libcxxrt +libunwind +static-libs test" |
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+REQUIRED_USE="libunwind? ( || ( libcxxabi libcxxrt ) ) |
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+ ?? ( libcxxabi libcxxrt )" |
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+RESTRICT="!test? ( test )" |
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+ |
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+RDEPEND=" |
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+ libcxxabi? ( ~sys-libs/libcxxabi-${PV}[libunwind=,static-libs?,${MULTILIB_USEDEP}] ) |
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+ libcxxrt? ( sys-libs/libcxxrt[libunwind=,static-libs?,${MULTILIB_USEDEP}] ) |
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+ !libcxxabi? ( !libcxxrt? ( >=sys-devel/gcc-4.7:=[cxx] ) )" |
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+# LLVM 4 required for llvm-config --cmakedir |
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+# clang-3.9.0 installs necessary target symlinks unconditionally |
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+# which removes the need for MULTILIB_USEDEP |
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+DEPEND="${RDEPEND} |
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+ test? ( >=sys-devel/clang-3.9.0 |
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+ $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') ) |
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+ app-arch/xz-utils |
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+ >=sys-devel/llvm-4" |
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+ |
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+DOCS=( CREDITS.TXT ) |
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+ |
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+PATCHES=( |
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+ # Add link flag "-Wl,-z,defs" to avoid underlinking; this is needed in a |
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+ # out-of-tree build. |
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+ "${FILESDIR}/${PN}-3.9-cmake-link-flags.patch" |
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+) |
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+ |
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+# least intrusive of all |
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+CMAKE_BUILD_TYPE=RelWithDebInfo |
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+ |
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+python_check_deps() { |
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+ has_version "dev-python/lit[${PYTHON_USEDEP}]" |
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+} |
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+ |
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+pkg_setup() { |
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+ llvm_pkg_setup |
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+ use test && python-any-r1_pkg_setup |
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+ |
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+ if ! use libcxxabi && ! use libcxxrt && ! tc-is-gcc ; then |
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+ eerror "To build ${PN} against libsupc++, you have to use gcc. Other" |
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+ eerror "compilers are not supported. Please set CC=gcc and CXX=g++" |
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+ eerror "and try again." |
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+ die |
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+ fi |
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+ if tc-is-gcc && [[ $(gcc-version) < 4.7 ]] ; then |
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+ eerror "${PN} needs to be built with gcc-4.7 or later (or other" |
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+ eerror "conformant compilers). Please use gcc-config to switch to" |
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+ eerror "gcc-4.7 or later version." |
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+ die |
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+ fi |
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+} |
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+ |
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+multilib_src_configure() { |
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+ local cxxabi cxxabi_incs |
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+ if use libcxxabi; then |
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+ cxxabi=libcxxabi |
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+ cxxabi_incs="${EPREFIX}/usr/include/libcxxabi" |
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+ elif use libcxxrt; then |
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+ cxxabi=libcxxrt |
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+ cxxabi_incs="${EPREFIX}/usr/include/libcxxrt" |
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+ else |
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+ local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)" |
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+ cxxabi=libsupc++ |
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+ cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}" |
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+ fi |
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+ |
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+ # we want -lgcc_s for unwinder, and for compiler runtime when using |
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+ # gcc, clang with gcc runtime (or any unknown compiler) |
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+ local extra_libs=() want_gcc_s=ON |
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+ if use libunwind; then |
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+ # work-around missing -lunwind upstream |
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+ extra_libs+=( -lunwind ) |
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+ # if we're using libunwind and clang with compiler-rt, we want |
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+ # to link to compiler-rt instead of -lgcc_s |
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+ if tc-is-clang; then |
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+ # get the full library list out of 'pretend mode' |
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+ # and grep it for libclang_rt references |
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+ local args=( $($(tc-getCC) -### -x c - 2>&1 | tail -n 1) ) |
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+ local i |
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+ for i in "${args[@]}"; do |
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+ if [[ ${i} == *libclang_rt* ]]; then |
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+ want_gcc_s=OFF |
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+ extra_libs+=( "${i}" ) |
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+ fi |
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+ done |
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+ fi |
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+ fi |
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+ |
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+ local libdir=$(get_libdir) |
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+ local mycmakeargs=( |
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+ -DLIBCXX_LIBDIR_SUFFIX=${libdir#lib} |
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+ -DLIBCXX_ENABLE_SHARED=ON |
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+ -DLIBCXX_ENABLE_STATIC=$(usex static-libs) |
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+ -DLIBCXX_CXX_ABI=${cxxabi} |
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+ -DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs} |
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+ # we're using our own mechanism for generating linker scripts |
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+ -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF |
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+ -DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl) |
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+ -DLIBCXX_HAS_GCC_S_LIB=${want_gcc_s} |
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+ -DLIBCXX_INCLUDE_TESTS=$(usex test) |
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+ -DCMAKE_SHARED_LINKER_FLAGS="${extra_libs[*]} ${LDFLAGS}" |
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+ ) |
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+ |
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+ if use test; then |
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+ mycmakeargs+=( |
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+ -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit" |
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+ -DLLVM_LIT_ARGS="-vv" |
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+ ) |
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+ fi |
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+ cmake-utils_src_configure |
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+} |
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+ |
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+multilib_src_test() { |
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+ local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null) |
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+ |
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+ [[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests" |
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+ sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die |
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+ |
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+ cmake-utils_src_make check-libcxx |
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+} |
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+ |
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+# Usage: deps |
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+gen_ldscript() { |
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+ local output_format |
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+ output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
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+ [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
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+ |
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+ cat <<-END_LDSCRIPT |
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+/* GNU ld script |
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+ Include missing dependencies |
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+*/ |
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+${output_format} |
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+GROUP ( $@ ) |
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+END_LDSCRIPT |
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+} |
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+ |
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+gen_static_ldscript() { |
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+ local libdir=$(get_libdir) |
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+ local cxxabi_lib=$(usex libcxxabi "libc++abi.a" "$(usex libcxxrt "libcxxrt.a" "libsupc++.a")") |
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+ |
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+ # Move it first. |
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+ mv "${ED}/usr/${libdir}/libc++.a" "${ED}/usr/${libdir}/libc++_static.a" || die |
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+ # Generate libc++.a ldscript for inclusion of its dependencies so that |
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+ # clang++ -stdlib=libc++ -static works out of the box. |
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+ local deps="libc++_static.a ${cxxabi_lib} $(usex libunwind libunwind.a libgcc_eh.a)" |
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+ # On Linux/glibc it does not link without libpthread or libdl. It is |
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+ # fine on FreeBSD. |
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+ use elibc_glibc && deps+=" libpthread.a libdl.a" |
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+ |
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+ gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.a" || die |
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+} |
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+ |
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+gen_shared_ldscript() { |
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+ local libdir=$(get_libdir) |
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+ # libsupc++ doesn't have a shared version |
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+ local cxxabi_lib=$(usex libcxxabi "libc++abi.so" "$(usex libcxxrt "libcxxrt.so" "libsupc++.a")") |
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+ |
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+ mv "${ED}/usr/${libdir}/libc++.so" "${ED}/usr/${libdir}/libc++_shared.so" || die |
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+ local deps="libc++_shared.so ${cxxabi_lib} $(usex libunwind libunwind.so libgcc_s.so)" |
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+ |
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+ gen_ldscript "${deps}" > "${ED}/usr/${libdir}/libc++.so" || die |
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+} |
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+ |
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+multilib_src_install() { |
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+ cmake-utils_src_install |
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+ gen_shared_ldscript |
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+ use static-libs && gen_static_ldscript |
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+} |
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+ |
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+pkg_postinst() { |
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+ elog "This package (${PN}) is mainly intended as a replacement for the C++" |
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+ elog "standard library when using clang." |
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+ elog "To use it, instead of libstdc++, use:" |
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+ elog " clang++ -stdlib=libc++" |
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+ elog "to compile your C++ programs." |
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+} |