commit:     6774394914a149182995b5b988b6ac32c5f0ddf4
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Tue Sep 22 17:09:54 2020 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Sep 22 20:40:05 2020 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=67743949

sys-libs/libcxx: Bump to 11.0.0-rc3

Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 sys-libs/libcxx/Manifest                 |   1 +
 sys-libs/libcxx/libcxx-11.0.0_rc3.ebuild | 197 +++++++++++++++++++++++++++++++
 2 files changed, 198 insertions(+)

diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 8ceb9382992..990dc5965a2 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -2,4 +2,5 @@ DIST llvmorg-10.0.0.tar.gz 120804856 BLAKE2B 
6b0254f5b913398cdcf2b2ec1ff21988870
 DIST llvmorg-10.0.1.tar.gz 120880730 BLAKE2B 
30f19f56c4d1f6abcda5fec76256219d1e3c8a6ff1a1f152f94bfe362c07884339fe571ff7fe903ed3b3deb150b2fa868c387887a0dea2930dc08b81db71a5b1
 SHA512 
48078fff9293a87f1a973f3348f79506f04c3da774295f5eb67d74dd2d1aa94f0973f8ced3f4ab9e8339902071f82c603b43d5608ad7227046c4da769c5d2151
 DIST llvmorg-11.0.0-rc1.tar.gz 122688246 BLAKE2B 
10ff3f08ff3780abb1d86ac67942e6aac52ff5daf820a2e3d23d8b79dbade1c5b1d398d0a577028d2d7c8759ab9a8b552a0305b5750310a015585c06cdadf844
 SHA512 
09564ed903902a5795fffaa4679badc30bf49739889a48074b5ae2c93bd29000cfb36a650208d5cae5d74899bade066f84b4aa023fc852eec246ff67bf64a267
 DIST llvmorg-11.0.0-rc2.tar.gz 122728230 BLAKE2B 
7944adf41ec7cd82489666a0a38a857de628879d59a2e3bb566b67c18500092430db66ff214d45cb324128c874a74a72c367b452df3b88ec95b33c284dd35512
 SHA512 
25eb2879eb22e79a1e840ef24cf3f5eec602e947101db299393e06e3d09f2d1531eef214264636e1b511eafff7f51b1834d5a03976ccd088eb680745b147e9f3
+DIST llvmorg-11.0.0-rc3.tar.gz 122766783 BLAKE2B 
052fdc864fed52692141284ebdc41d52d21fbeaf24ac5ed3e67701537baa683bae61b1c06de68322e0578a27a1f5a8856088cdc001d2b8d34d2ec88ae65ff739
 SHA512 
a28ce74775373c63fe23b3116cd25db0efb95c6fdb60e56f2522659a404a59576f3d9429a109cb0f90534927259289aa1c712673f36f92272d642bf8dce5699f
 DIST llvmorg-9.0.1.tar.gz 113193320 BLAKE2B 
b86e405f2b8e00436045fd409fe19cdde75c797b1192c62a22b5ec75e6b4dc8e874a0f33008dc31562445e4cbe53a992b6f48c684255a6a1ef261e595b8b161f
 SHA512 
fa88beeaae94b6d0cd9b5ba38658d0ffed8004035d7d8a4f95c3d31a709b88b581ae9bd7761333c8e5375c44b8f6be01768b5a3be901163159d7e6c43b71da59

diff --git a/sys-libs/libcxx/libcxx-11.0.0_rc3.ebuild 
b/sys-libs/libcxx/libcxx-11.0.0_rc3.ebuild
new file mode 100644
index 00000000000..22c6462abd9
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-11.0.0_rc3.ebuild
@@ -0,0 +1,197 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{6..9} )
+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/";
+LLVM_COMPONENTS=( libcxx{,abi} llvm/{cmake/modules,utils/llvm-lit} )
+llvm.org_set_globals
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="elibc_glibc elibc_musl +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="
+       test? ( >=sys-devel/clang-3.9.0
+               $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
+
+DOCS=( CREDITS.TXT )
+
+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 && ! tc-is-gcc ; then
+               eerror "To build ${PN} against libsupc++, you have to use gcc. 
Other"
+               eerror "compilers are not supported. Please set CC=gcc and 
CXX=g++"
+               eerror "and try again."
+               die
+       fi
+}
+
+src_prepare() {
+       # Add link flag "-Wl,-z,defs" to avoid underlinking; this is needed in a
+       # out-of-tree build.
+       eapply "${FILESDIR}/${PN}-3.9-cmake-link-flags.patch"
+
+       llvm.org_src_prepare
+}
+
+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=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
+       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=(
+               -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=$(usex test)
+               -DLIBCXX_USE_COMPILER_RT=${want_compiler_rt}
+               -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}"
+               )
+       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
+       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."
+}

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