commit:     9e934604db6d32b00c4cf11539d1d9acc293791e
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Sun Jan  1 11:58:00 2023 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sun Jan  1 20:59:19 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=9e934604

sys-libs/libcxx: Add 16.0.0_pre20230101 snapshot

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

 sys-libs/libcxx/Manifest                         |   1 +
 sys-libs/libcxx/libcxx-16.0.0_pre20230101.ebuild | 204 +++++++++++++++++++++++
 2 files changed, 205 insertions(+)

diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 60638138ce61..90966698a634 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -6,6 +6,7 @@ DIST llvm-project-15.0.5.src.tar.xz 110931004 BLAKE2B 
d751e3627ee26e60a1a037a4a6
 DIST llvm-project-15.0.5.src.tar.xz.sig 566 BLAKE2B 
a6e7204abc912045346a36f2b349e0829a4d5b9efcb230fb0c97caa38d5159ca17ffb47ce0485cbab276a4938ff3a5c05ef9f8b0b75f4c2028d870ee33023431
 SHA512 
312bc09b54408a9265f8102241089b0f674be0832dd5cb1998ff13dbccbe19324d7060ba2680457118dee96a1ff390b16282677ad825d7230008014ecebe47d5
 DIST llvm-project-15.0.6.src.tar.xz 112074576 BLAKE2B 
74b1aa967c95191fa492f06b3a21930842da0ccbd9995dd33b4c2cf07852bbedcae97041fd5966209b16c63b90c87cc02fb2e858eda13dd9cc0641edcede0f75
 SHA512 
3311d85f4e02610af52f06e83c8c6d2b93950d24324b831b7afc47c39a20a546d39683a14e1a315da87d226379042de900a3f36a0351053547482af9035ab949
 DIST llvm-project-15.0.6.src.tar.xz.sig 438 BLAKE2B 
3c97dbd55667f52dad964ef71257c36e3075794f5616cfd46de8bf874867e861bf45c0d56cff2d0ad5d4f1b5a1c9b3a395aedcc40bce545ce7f3c84ac75ae3da
 SHA512 
a184103d84f8197a709c6c067fa83ca9290cd06532c487ad2c1fefa423438a1ac3c7f88835a94e3c9f04876e8d5f09afabef15bd8605df38aec6a4118597090c
+DIST llvm-project-b20dd2b186fdc76828219b705a2b58f5830f4b9d.tar.gz 175044630 
BLAKE2B 
f9a955e8413b57067fb697792316fb0c1e3eac00b1af208ba5d29db01a9acc96b88c7edca12c43762b1425c71a716a7c74d5d7edad45a442f32ba73f88f548b6
 SHA512 
5133c32d7856c8280bfeb47c3e5a9c0d8c1c291aad29af93586523110f95b08e582ff416fc6be02241eabfe80c35ad4f0334de5ead2a41bc6504616b1c6fd15a
 DIST llvm-project-dfc20708bcdf7b4c4bea8595fc4ac8674634d5e6.tar.gz 174878013 
BLAKE2B 
9c37423ae2a85a9d4a17fba97733cf808ebc98fa1488fb02e8c3e23039511154a220184af1bc6950c857b7d3c528d01e3dde5441c18903f25a7d7b7781e08f9b
 SHA512 
146d6ab53cce257c21ae202b887bbb77b017f883cf26337bd3af29289cd828aabf95c528c6c192473c3cafb7e803940261f32a8fab6130deca01ccd5576c78eb
 DIST llvm-project-fb792ebaf2114ad11d673cf891ae560e2e604711.tar.gz 174312496 
BLAKE2B 
dd7f30b911ef5049e9e2bff7b2768e31b48b1f4c7acaf159f535fe3deb5aa6630fdf7857c83fffcda1119a38a52101490d2b6cb41cb295bb7dd85cde0445b7ee
 SHA512 
bef15e7d82a2faf8be24f784d3d34ff9b21c8f17256879587ea5471011a32a1eb885e1b020da55aa096f2e0b5fe4bcf9fe8f0f5b5d34f5f386c48899c68fb7d1
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 
2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b
 SHA512 
9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f

diff --git a/sys-libs/libcxx/libcxx-16.0.0_pre20230101.ebuild 
b/sys-libs/libcxx/libcxx-16.0.0_pre20230101.ebuild
new file mode 100644
index 000000000000..1b03c27cafcf
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-16.0.0_pre20230101.ebuild
@@ -0,0 +1,204 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
+       toolchain-funcs
+
+DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
+HOMEPAGE="https://libcxx.llvm.org/";
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="+clang +libcxxabi static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+       libcxxabi? (
+               ~sys-libs/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]
+       )
+       !libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )
+"
+DEPEND="
+       ${RDEPEND}
+       sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+       clang? (
+               sys-devel/clang:${LLVM_MAJOR}
+       )
+       !test? (
+               ${PYTHON_DEPS}
+       )
+       test? (
+               >=dev-util/cmake-3.16
+               sys-devel/gdb[python]
+               $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+       )
+"
+
+LLVM_COMPONENTS=( runtimes libcxx{,abi} llvm/{cmake,utils/llvm-lit} cmake )
+llvm.org_set_globals
+
+python_check_deps() {
+       use test || return 0
+       python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+       # Darwin Prefix builds do not have llvm installed yet, so rely on
+       # bootstrap-prefix to set the appropriate path vars to LLVM instead
+       # of using llvm_pkg_setup.
+       if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then
+               LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+       fi
+       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
+}
+
+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=system-libcxxabi
+               cxxabi_incs="${EPREFIX}/usr/include/c++/v1"
+       else
+               local 
gcc_inc="${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() {
+       if use clang; then
+               local -x CC=${CHOST}-clang
+               local -x CXX=${CHOST}-clang++
+               strip-unsupported-flags
+       fi
+
+       # link to compiler-rt
+       local use_compiler_rt=OFF
+       [[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+       # bootstrap: cmake is unhappy if compiler can't link to stdlib
+       local nolib_flags=( -nodefaultlibs -lc )
+       if ! test_compiler; then
+               if test_compiler "${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=(
+               -DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+               -DPython3_EXECUTABLE="${PYTHON}"
+               -DLLVM_ENABLE_RUNTIMES=libcxx
+               -DLLVM_INCLUDE_TESTS=OFF
+               -DLLVM_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=$(usex elibc_musl)
+               -DLIBCXX_INCLUDE_BENCHMARKS=OFF
+               -DLIBCXX_INCLUDE_TESTS=$(usex test)
+               -DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}
+       )
+
+       if use test; then
+               mycmakeargs+=(
+                       -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+                       -DLLVM_LIT_ARGS="$(get_lit_flags)"
+                       -DPython3_EXECUTABLE="${PYTHON}"
+               )
+       fi
+       cmake_src_configure
+}
+
+multilib_src_compile() {
+       cmake_src_compile
+       if [[ ${CHOST} != *-darwin* ]] ; then
+               gen_shared_ldscript
+               use static-libs && gen_static_ldscript
+       fi
+}
+
+multilib_src_test() {
+       local -x LIT_PRESERVES_TMP=1
+       cmake_build check-cxx
+}
+
+multilib_src_install() {
+       cmake_src_install
+       # since we've replaced libc++.{a,so} with ldscripts, now we have to
+       # install the extra symlinks
+       if [[ ${CHOST} != *-darwin* ]] ; then
+               dolib.so lib/libc++_shared.so
+               use static-libs && dolib.a lib/libc++_static.a
+       fi
+}
+
+# Usage: deps
+gen_ldscript() {
+       local output_format
+       output_format=$($(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() {
+       # Move it first.
+       mv lib/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
+               $(usex libcxxabi libc++abi.a libsupc++.a)
+       )
+       # On Linux/glibc it does not link without libpthread or libdl. It is
+       # fine on FreeBSD.
+       use elibc_glibc && deps+=( libpthread.a libdl.a )
+
+       gen_ldscript "${deps[*]}" > lib/libc++.a || die
+}
+
+gen_shared_ldscript() {
+       # Move it first.
+       mv lib/libc++{,_shared}.so || die
+       local deps=(
+               libc++_shared.so
+               # libsupc++ doesn't have a shared version
+               $(usex libcxxabi libc++abi.so libsupc++.a)
+       )
+
+       gen_ldscript "${deps[*]}" > lib/libc++.so || die
+}

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