From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <gentoo-commits+bounces-1208922-garchives=archives.gentoo.org@lists.gentoo.org> Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 1078A13835A for <garchives@archives.gentoo.org>; Wed, 23 Sep 2020 10:35:55 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 51FA5E0858; Wed, 23 Sep 2020 10:35:54 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [IPv6:2001:470:ea4a:1:5054:ff:fec7:86e4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 2DF43E0858 for <gentoo-commits@lists.gentoo.org>; Wed, 23 Sep 2020 10:35:54 +0000 (UTC) Received: from oystercatcher.gentoo.org (unknown [IPv6:2a01:4f8:202:4333:225:90ff:fed9:fc84]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTPS id 3351F340D1B for <gentoo-commits@lists.gentoo.org>; Wed, 23 Sep 2020 10:35:53 +0000 (UTC) Received: from localhost.localdomain (localhost [IPv6:::1]) by oystercatcher.gentoo.org (Postfix) with ESMTP id DB506379 for <gentoo-commits@lists.gentoo.org>; Wed, 23 Sep 2020 10:35:51 +0000 (UTC) From: "Michał Górny" <mgorny@gentoo.org> To: gentoo-commits@lists.gentoo.org Content-Transfer-Encoding: 8bit Content-type: text/plain; charset=UTF-8 Reply-To: gentoo-dev@lists.gentoo.org, "Michał Górny" <mgorny@gentoo.org> Message-ID: <1600857337.dbe0cf7452b23a2991254be1f8f05c883e36a533.mgorny@gentoo> Subject: [gentoo-commits] repo/gentoo:master commit in: sys-libs/libcxx/ X-VCS-Repository: repo/gentoo X-VCS-Files: sys-libs/libcxx/Manifest sys-libs/libcxx/libcxx-11.0.0_rc1.ebuild sys-libs/libcxx/libcxx-11.0.0_rc2.ebuild X-VCS-Directories: sys-libs/libcxx/ X-VCS-Committer: mgorny X-VCS-Committer-Name: Michał Górny X-VCS-Revision: dbe0cf7452b23a2991254be1f8f05c883e36a533 X-VCS-Branch: master Date: Wed, 23 Sep 2020 10:35:51 +0000 (UTC) Precedence: bulk List-Post: <mailto:gentoo-commits@lists.gentoo.org> List-Help: <mailto:gentoo-commits+help@lists.gentoo.org> List-Unsubscribe: <mailto:gentoo-commits+unsubscribe@lists.gentoo.org> List-Subscribe: <mailto:gentoo-commits+subscribe@lists.gentoo.org> List-Id: Gentoo Linux mail <gentoo-commits.gentoo.org> X-BeenThere: gentoo-commits@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-Archives-Salt: eae424e4-3a62-40bf-bf92-a55c22ad3e6f X-Archives-Hash: 27a44824e85b1fd713b17c0f6b9f4b54 commit: dbe0cf7452b23a2991254be1f8f05c883e36a533 Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Wed Sep 23 10:34:27 2020 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Wed Sep 23 10:35:37 2020 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=dbe0cf74 sys-libs/libcxx: Remove old 11.0.0 RCs Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> sys-libs/libcxx/Manifest | 2 - sys-libs/libcxx/libcxx-11.0.0_rc1.ebuild | 197 ------------------------------- sys-libs/libcxx/libcxx-11.0.0_rc2.ebuild | 197 ------------------------------- 3 files changed, 396 deletions(-) diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest index 990dc5965a2..dff4b05ec63 100644 --- a/sys-libs/libcxx/Manifest +++ b/sys-libs/libcxx/Manifest @@ -1,6 +1,4 @@ DIST llvmorg-10.0.0.tar.gz 120804856 BLAKE2B 6b0254f5b913398cdcf2b2ec1ff219888706d2b79d5296590934714e42ac79f6a6547941ac2b1d2c4e6313dd18b6c7068e748aa6ac033e49fccbf5d355aa8191 SHA512 baa182d62fef1851836013ae8a1a00861ea89769778d67fb97b407a9de664e6c85da2af9c5b3f75d2bf34ff6b00004e531ca7e4b3115a26c0e61c575cf2303a0 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_rc1.ebuild b/sys-libs/libcxx/libcxx-11.0.0_rc1.ebuild deleted file mode 100644 index 22c6462abd9..00000000000 --- a/sys-libs/libcxx/libcxx-11.0.0_rc1.ebuild +++ /dev/null @@ -1,197 +0,0 @@ -# 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 (${PN}) is mainly intended as a replacement for the C++" - elog "standard library when using clang." - elog "To use it, instead of libstdc++, use:" - elog " clang++ -stdlib=libc++" - elog "to compile your C++ programs." -} diff --git a/sys-libs/libcxx/libcxx-11.0.0_rc2.ebuild b/sys-libs/libcxx/libcxx-11.0.0_rc2.ebuild deleted file mode 100644 index 22c6462abd9..00000000000 --- a/sys-libs/libcxx/libcxx-11.0.0_rc2.ebuild +++ /dev/null @@ -1,197 +0,0 @@ -# Copyright 1999-2020 Gentoo Authors -# Distributed under the terms of the GNU General Public License v2 - -EAPI=7 - -CMAKE_ECLASS=cmake -PYTHON_COMPAT=( python3_{6..9} ) -inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs - -DESCRIPTION="New implementation of the C++ standard library, targeting C++11" -HOMEPAGE="https://libcxx.llvm.org/" -LLVM_COMPONENTS=( libcxx{,abi} llvm/{cmake/modules,utils/llvm-lit} ) -llvm.org_set_globals - -LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )" -SLOT="0" -KEYWORDS="" -IUSE="elibc_glibc elibc_musl +libcxxabi +libunwind +static-libs test" -REQUIRED_USE="libunwind? ( libcxxabi )" -RESTRICT="!test? ( test )" - -RDEPEND=" - libcxxabi? ( ~sys-libs/libcxxabi-${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." -}