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commit: 9d299a398903a01b82022a880360d0a4b7b1e791 |
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Author: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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AuthorDate: Fri Aug 5 19:48:45 2022 +0000 |
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Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> |
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CommitDate: Fri Aug 5 19:50:00 2022 +0000 |
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URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9d299a39 |
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|
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sys-libs/libcxx: Add 16.* live ebuilds |
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|
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Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> |
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|
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sys-libs/libcxx/libcxx-16.0.0.9999.ebuild | 228 ++++++++++++++++++++++++++++++ |
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1 file changed, 228 insertions(+) |
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|
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diff --git a/sys-libs/libcxx/libcxx-16.0.0.9999.ebuild b/sys-libs/libcxx/libcxx-16.0.0.9999.ebuild |
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new file mode 100644 |
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index 000000000000..d95f996ca33b |
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--- /dev/null |
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+++ b/sys-libs/libcxx/libcxx-16.0.0.9999.ebuild |
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@@ -0,0 +1,228 @@ |
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+# Copyright 1999-2022 Gentoo Authors |
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+# Distributed under the terms of the GNU General Public License v2 |
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+ |
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+EAPI=8 |
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+ |
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+CMAKE_ECLASS=cmake |
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+PYTHON_COMPAT=( python3_{8..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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+ |
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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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+ |
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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="" |
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+IUSE="+clang +libcxxabi static-libs test" |
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+REQUIRED_USE="test? ( clang )" |
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+RESTRICT="!test? ( test )" |
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+ |
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+RDEPEND=" |
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+ libcxxabi? ( |
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+ ~sys-libs/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}] |
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+ ) |
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+ !libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] ) |
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+" |
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+# llvm-6 for new lit options |
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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=" |
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+ ${RDEPEND} |
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+ >=sys-devel/llvm-6 |
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+" |
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+BDEPEND=" |
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+ clang? ( |
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+ sys-devel/clang |
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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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+ >=dev-util/cmake-3.16 |
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+ sys-devel/gdb[python] |
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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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+ |
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+LLVM_COMPONENTS=( runtimes libcxx{,abi} llvm/{cmake,utils/llvm-lit} cmake ) |
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+LLVM_PATCHSET=9999-1 |
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+llvm.org_set_globals |
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+ |
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+python_check_deps() { |
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+ use test || return 0 |
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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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+ # Darwin Prefix builds do not have llvm installed yet, so rely on |
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+ # bootstrap-prefix to set the appropriate path vars to LLVM instead |
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+ # of using llvm_pkg_setup. |
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+ if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then |
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+ 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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+ if ! use libcxxabi && ! 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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+} |
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+ |
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+test_compiler() { |
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+ $(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \ |
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+ <<<'int main() { return 0; }' &>/dev/null |
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+} |
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+ |
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+src_configure() { |
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+ # note: we need to do this before multilib kicks in since it will |
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+ # alter the CHOST |
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+ local cxxabi cxxabi_incs |
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+ if use libcxxabi; then |
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+ cxxabi=system-libcxxabi |
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+ cxxabi_incs="${EPREFIX}/usr/include/c++/v1" |
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+ else |
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+ local gcc_inc="${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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+ multilib-minimal_src_configure |
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+} |
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+ |
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+multilib_src_configure() { |
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+ if use clang && ! tc-is-clang; then |
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+ # Only do this conditionally to allow overriding with |
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+ # e.g. CC=clang-13 in case of breakage |
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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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+ |
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+ # link against compiler-rt instead of libgcc if this is what clang does |
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+ local want_compiler_rt=OFF |
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+ if tc-is-clang; then |
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+ local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \ |
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+ ${LDFLAGS} -print-libgcc-file-name) |
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+ if [[ ${compiler_rt} == *libclang_rt* ]]; then |
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+ want_compiler_rt=ON |
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+ fi |
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+ fi |
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+ |
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+ # bootstrap: cmake is unhappy if compiler can't link to stdlib |
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+ local nolib_flags=( -nodefaultlibs -lc ) |
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+ if ! test_compiler; then |
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+ if test_compiler "${nolib_flags[@]}"; then |
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+ local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}" |
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+ ewarn "${CXX} seems to lack runtime, trying with ${nolib_flags[*]}" |
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+ fi |
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+ fi |
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+ |
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+ local libdir=$(get_libdir) |
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+ local mycmakeargs=( |
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+ -DCMAKE_CXX_COMPILER_TARGET="${CHOST}" |
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+ -DPython3_EXECUTABLE="${PYTHON}" |
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+ -DLLVM_ENABLE_RUNTIMES=libcxx |
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+ -DLLVM_INCLUDE_TESTS=OFF |
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+ -DLLVM_LIBDIR_SUFFIX=${libdir#lib} |
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+ |
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+ -DLIBCXX_ENABLE_SHARED=ON |
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+ -DLIBCXX_ENABLE_STATIC=$(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=$(usex elibc_musl) |
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+ -DLIBCXX_INCLUDE_BENCHMARKS=OFF |
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+ -DLIBCXX_INCLUDE_TESTS=$(usex test) |
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+ -DLIBCXX_USE_COMPILER_RT=${want_compiler_rt} |
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+ ) |
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+ |
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+ if use test; then |
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+ local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null) |
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+ [[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests" |
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+ |
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+ mycmakeargs+=( |
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+ -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit" |
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+ -DLLVM_LIT_ARGS="$(get_lit_flags)" |
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+ -DPython3_EXECUTABLE="${PYTHON}" |
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+ ) |
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+ fi |
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+ cmake_src_configure |
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+} |
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+ |
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+multilib_src_compile() { |
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+ cmake_src_compile |
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+ if [[ ${CHOST} != *-darwin* ]] ; then |
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+ gen_shared_ldscript |
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+ use static-libs && gen_static_ldscript |
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+ fi |
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+} |
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+ |
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+multilib_src_test() { |
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+ local -x LIT_PRESERVES_TMP=1 |
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+ cmake_build check-cxx |
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+} |
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+ |
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+multilib_src_install() { |
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+ cmake_src_install |
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+ # since we've replaced libc++.{a,so} with ldscripts, now we have to |
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+ # install the extra symlinks |
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+ if [[ ${CHOST} != *-darwin* ]] ; then |
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+ dolib.so lib/libc++_shared.so |
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+ use static-libs && dolib.a lib/libc++_static.a |
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+ fi |
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+} |
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+ |
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+# Usage: deps |
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+gen_ldscript() { |
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+ local output_format |
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+ output_format=$($(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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+ # Move it first. |
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+ mv lib/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=( |
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+ libc++_static.a |
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+ $(usex libcxxabi libc++abi.a libsupc++.a) |
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+ ) |
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+ # On Linux/glibc it does not link without libpthread or libdl. It is |
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+ # fine on FreeBSD. |
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+ use elibc_glibc && deps+=( libpthread.a libdl.a ) |
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+ |
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+ gen_ldscript "${deps[*]}" > lib/libc++.a || die |
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+} |
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+ |
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+gen_shared_ldscript() { |
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+ # Move it first. |
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+ mv lib/libc++{,_shared}.so || die |
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+ local deps=( |
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+ libc++_shared.so |
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+ # libsupc++ doesn't have a shared version |
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+ $(usex libcxxabi libc++abi.so libsupc++.a) |
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+ ) |
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+ |
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+ gen_ldscript "${deps[*]}" > lib/libc++.so || die |
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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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+} |