sys-libs/libcxxabi-8.0.1 fails to compile

[ArniDagur]

Greetings,

For me, the package =sys-libs/libcxxabi-8.0.1 fails to compile with gentooLTO enabled, but when I comment out source make.conf.lto, it compiles and installs fine.

I have attached the build log below:

 * Package:    sys-libs/libcxxabi-8.0.1
 * Repository: gentoo
 * Maintainer: llvm@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux libunwind static-libs userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking libcxxabi-8.0.1.src.tar.xz to /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Unpacking libcxx-8.0.1.src.tar.xz to /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Source unpacked in /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Preparing source in /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
>>> Source prepared.
>>> Configuring source in /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
 * abi_x86_64.amd64: running multilib-minimal_abi_src_configure
>>> Working in BUILD_DIR: "/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64"
cmake -C /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_common_config.cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -DLIBCXXABI_LIBDIR_SUFFIX=64 -DLIBCXXABI_ENABLE_SHARED=ON -DLIBCXXABI_ENABLE_STATIC=yes -DLIBCXXABI_USE_LLVM_UNWINDER=yes -DLIBCXXABI_INCLUDE_TESTS=no -DLIBCXXABI_LIBCXX_INCLUDES=/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include -DLIBCXXABI_LIBUNWIND_INCLUDES=/usr/include -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_toolchain.cmake  /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src
loading initial cache file /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_common_config.cmake
-- The CXX compiler identification is GNU 9.2.0
-- The C compiler identification is GNU 9.2.0
-- Check for working CXX compiler: /usr/bin/x86_64-pc-linux-gnu-g++
-- Check for working CXX compiler: /usr/bin/x86_64-pc-linux-gnu-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /usr/bin/x86_64-pc-linux-gnu-gcc
-- Check for working C compiler: /usr/bin/x86_64-pc-linux-gnu-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring for standalone build.
-- Found LLVM_CONFIG_PATH as /usr/lib/llvm/8/bin/llvm-config
-- Linker detection: GNU ld
-- Performing Test C_SUPPORTS_FPIC
-- Performing Test C_SUPPORTS_FPIC - Success
-- Performing Test CXX_SUPPORTS_FPIC
-- Performing Test CXX_SUPPORTS_FPIC - Success
-- Building with -fPIC
-- Performing Test SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG
-- Performing Test SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG - Success
-- Performing Test C_SUPPORTS_WERROR_DATE_TIME
-- Performing Test C_SUPPORTS_WERROR_DATE_TIME - Success
-- Performing Test CXX_SUPPORTS_WERROR_DATE_TIME
-- Performing Test CXX_SUPPORTS_WERROR_DATE_TIME - Success
-- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW
-- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW - Failed
-- Performing Test CXX_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW
-- Performing Test CXX_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW - Failed
-- Performing Test CXX_SUPPORTS_CXX11
-- Performing Test CXX_SUPPORTS_CXX11 - Success
-- Performing Test LINKER_SUPPORTS_COLOR_DIAGNOSTICS
-- Performing Test LINKER_SUPPORTS_COLOR_DIAGNOSTICS - Failed
-- Performing Test C_SUPPORTS_FNO_FUNCTION_SECTIONS
-- Performing Test C_SUPPORTS_FNO_FUNCTION_SECTIONS - Success
-- Performing Test C_SUPPORTS_FFUNCTION_SECTIONS
-- Performing Test C_SUPPORTS_FFUNCTION_SECTIONS - Success
-- Performing Test CXX_SUPPORTS_FFUNCTION_SECTIONS
-- Performing Test CXX_SUPPORTS_FFUNCTION_SECTIONS - Success
-- Performing Test C_SUPPORTS_FDATA_SECTIONS
-- Performing Test C_SUPPORTS_FDATA_SECTIONS - Success
-- Performing Test CXX_SUPPORTS_FDATA_SECTIONS
-- Performing Test CXX_SUPPORTS_FDATA_SECTIONS - Success
CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:781 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_ENABLE_EH'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:782 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_ENABLE_RTTI'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:861 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_EXPORT_SYMBOLS_FOR_PLUGINS'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Looking for fopen in c
-- Looking for fopen in c - found
-- Looking for __gcc_personality_v0 in gcc_s
-- Looking for __gcc_personality_v0 in gcc_s - found
-- Performing Test LIBCXXABI_HAS_NODEFAULTLIBS_FLAG
-- Performing Test LIBCXXABI_HAS_NODEFAULTLIBS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_FUNWIND_TABLES
-- Performing Test LIBCXXABI_HAS_FUNWIND_TABLES - Success
-- Performing Test LIBCXXABI_HAS_NO_EXCEPTIONS_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EXCEPTIONS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_NO_RTTI_FLAG
-- Performing Test LIBCXXABI_HAS_NO_RTTI_FLAG - Success
-- Performing Test LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_HAS_NOSTDINCXX_FLAG
-- Performing Test LIBCXXABI_HAS_NOSTDINCXX_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WALL_FLAG
-- Performing Test LIBCXXABI_HAS_WALL_FLAG - Success
-- Performing Test LIBCXXABI_HAS_W_FLAG
-- Performing Test LIBCXXABI_HAS_W_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_FUNCTION_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_FUNCTION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_VARIABLE_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_VARIABLE_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_PARAMETER_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_PARAMETER_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_HAS_WSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSTRICT_OVERFLOW_FLAG
-- Performing Test LIBCXXABI_HAS_WSTRICT_OVERFLOW_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WWRITE_STRINGS_FLAG
-- Performing Test LIBCXXABI_HAS_WWRITE_STRINGS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WCHAR_SUBSCRIPTS_FLAG
-- Performing Test LIBCXXABI_HAS_WCHAR_SUBSCRIPTS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG
-- Performing Test LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WMISSING_BRACES_FLAG
-- Performing Test LIBCXXABI_HAS_WMISSING_BRACES_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSHORTEN_64_TO_32_FLAG
-- Performing Test LIBCXXABI_HAS_WSHORTEN_64_TO_32_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WSIGN_CONVERSION_FLAG
-- Performing Test LIBCXXABI_HAS_WSIGN_CONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSIGN_COMPARE_FLAG
-- Performing Test LIBCXXABI_HAS_WSIGN_COMPARE_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSHADOW_FLAG
-- Performing Test LIBCXXABI_HAS_WSHADOW_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WCONVERSION_FLAG
-- Performing Test LIBCXXABI_HAS_WCONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WNEWLINE_EOF_FLAG
-- Performing Test LIBCXXABI_HAS_WNEWLINE_EOF_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WUNDEF_FLAG
-- Performing Test LIBCXXABI_HAS_WUNDEF_FLAG - Success
-- Performing Test LIBCXXABI_HAS_PEDANTIC_FLAG
-- Performing Test LIBCXXABI_HAS_PEDANTIC_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WERROR_FLAG
-- Performing Test LIBCXXABI_HAS_WERROR_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WNO_ERROR_FLAG
-- Performing Test LIBCXXABI_HAS_WNO_ERROR_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WX_FLAG
-- Performing Test LIBCXXABI_HAS_WX_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_WX_FLAG
-- Performing Test LIBCXXABI_HAS_NO_WX_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_EHSC_FLAG
-- Performing Test LIBCXXABI_HAS_EHSC_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_EHS_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EHS_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_EHA_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EHA_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_GR_FLAG
-- Performing Test LIBCXXABI_HAS_NO_GR_FLAG - Failed
-- Looking for dladdr in dl
-- Looking for dladdr in dl - found
-- Looking for pthread_once in pthread
-- Looking for pthread_once in pthread - found
-- Looking for __cxa_thread_atexit_impl in c
-- Looking for __cxa_thread_atexit_impl in c - found
-- Performing Test LIBCXXABI_SUPPORTS_WERROR_EQ_RETURN_TYPE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WERROR_EQ_RETURN_TYPE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_W_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_W_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WALL_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WALL_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WCHAR_SUBSCRIPTS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WCHAR_SUBSCRIPTS_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WCONVERSION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WCONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WMISMATCHED_TAGS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WMISMATCHED_TAGS_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WMISSING_BRACES_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WMISSING_BRACES_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WNEWLINE_EOF_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WNEWLINE_EOF_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_FUNCTION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_FUNCTION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSHADOW_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSHADOW_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSHORTEN_64_TO_32_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSHORTEN_64_TO_32_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_COMPARE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_COMPARE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_CONVERSION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_CONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_ALIASING_EQ_2_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_ALIASING_EQ_2_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_OVERFLOW_EQ_4_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_OVERFLOW_EQ_4_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_PARAMETER_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_PARAMETER_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_VARIABLE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_VARIABLE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WWRITE_STRINGS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WWRITE_STRINGS_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNDEF_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNDEF_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WNO_ERROR_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WNO_ERROR_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WX_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WX_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_PEDANTIC_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_PEDANTIC_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_FSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_FSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_EHSC_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_EHSC_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_FUNWIND_TABLES_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_FUNWIND_TABLES_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_NODEFAULTLIBS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_NODEFAULTLIBS_FLAG - Success
-- <<< Gentoo configuration >>>
Build type      RelWithDebInfo
Install path    /usr
Compiler flags:
C               -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -Werror=date-time -w -fdiagnostics-color -ffunction-sections -fdata-sections 
C++             -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections 
Linker flags:
Executable      -Wl,-O1 -Wl,--as-needed
Module          -Wl,-O1 -Wl,--as-needed -Wl,-z,nodelete
Shared          -Wl,-O1 -Wl,--as-needed -Wl,-z,defs -Wl,-z,nodelete

-- Configuring done
-- Generating done
-- Build files have been written to: /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64
>>> Source configured.
>>> Compiling source in /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
 * abi_x86_64.amd64: running multilib-minimal_abi_src_compile
>>> Working in BUILD_DIR: "/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64"
ninja -v -j8 -l0
[1/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_aux_runtime.cpp
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[15/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/stdlib_stdexcept.cpp
[16/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_personality.cpp
[17/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_thread_atexit.cpp
[18/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_exception.cpp
[19/22] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o -c /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_demangle.cpp
[20/22] : && /usr/bin/cmake -E remove lib64/libc++abi.a && /usr/bin/x86_64-pc-linux-gnu-ar qc lib64/libc++abi.a  src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o && /usr/bin/x86_64-pc-linux-gnu-ranlib lib64/libc++abi.a && :
[21/22] : && /usr/bin/x86_64-pc-linux-gnu-g++ -fPIC -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -Wl,-O1 -Wl,--as-needed -Wl,-z,defs -Wl,-z,nodelete  -nodefaultlibs -shared -Wl,-soname,libc++abi.so.1 -o lib64/libc++abi.so.1.0 src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib64:/usr/lib64/llvm/8/lib64" -lpthread -lc -lunwind && :
FAILED: lib64/libc++abi.so.1.0 
: && /usr/bin/x86_64-pc-linux-gnu-g++ -fPIC -march=native -pipe -falign-functions=32 -fdiagnostics-color=always -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=8 -fuse-linker-plugin -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -Wl,-O1 -Wl,--as-needed -Wl,-z,defs -Wl,-z,nodelete  -nodefaultlibs -shared -Wl,-soname,libc++abi.so.1 -o lib64/libc++abi.so.1.0 src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib64:/usr/lib64/llvm/8/lib64" -lpthread -lc -lunwind && :
/usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/temp/libc++abi.so.1.0.zxixJL.ltrans0.ltrans.o:(.data.rel.local.DW.ref.__gcc_personality_v0[DW.ref.__gcc_personality_v0]+0x0): undefined reference to `__gcc_personality_v0'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
 * ERROR: sys-libs/libcxxabi-8.0.1::gentoo failed (compile phase):
 *   ninja -v -j8 -l0 failed
 * 
 * Call stack:
 *     ebuild.sh, line  125:  Called src_compile
 *   environment, line 4384:  Called cmake-multilib_src_compile
 *   environment, line  931:  Called multilib-minimal_src_compile
 *   environment, line 2781:  Called multilib_foreach_abi 'multilib-minimal_abi_src_compile'
 *   environment, line 3025:  Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 2716:  Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 2714:  Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_compile'
 *   environment, line  596:  Called multilib-minimal_abi_src_compile
 *   environment, line 2775:  Called multilib_src_compile
 *   environment, line 3245:  Called cmake-utils_src_compile
 *   environment, line  951:  Called cmake-utils_src_make
 *   environment, line 1132:  Called _cmake_ninja_src_make
 *   environment, line  389:  Called eninja
 *   environment, line 1462:  Called die
 * The specific snippet of code:
 *       "$@" || die "${nonfatal_args[@]}" "${*} failed"
 * 
 * If you need support, post the output of `emerge --info '=sys-libs/libcxxabi-8.0.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-libs/libcxxabi-8.0.1::gentoo'`.
 * The complete build log is located at '/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/temp/build.log'.
 * The ebuild environment file is located at '/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/temp/environment'.
 * Working directory: '/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64'
 * S: '/sdb/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src'

[javashin]

cant reproduce

[javashin]

sys-libs/libcxxabi-8.0.1::gentoo was built with the following:
USE="libunwind static-libs -test" ABI_X86="32 (64) (-x32)"
CFLAGS="-march=native -mfpmath=both -funroll-loops -falign-functions=32 -fuse-ld=bfd -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -fuse-linker-plugin -fno-plt -fno-math-errno -fno-trapping-math -fno-stack-protector -pipe -Wl,-O2 -Wl,--as-needed,-z,now -Wl,--hash-style=gnu"
CXXFLAGS="-march=native -mfpmath=both -funroll-loops -falign-functions=32 -fuse-ld=bfd -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -fuse-linker-plugin -fno-plt -fno-math-errno -fno-trapping-math -fno-stack-protector -pipe -Wl,-O2 -Wl,--as-needed,-z,now -Wl,--hash-style=gnu"
FEATURES="userfetch preserve-libs parallel-fetch merge-sync news usersync pid-sandbox unmerge-logs ipc-sandbox assume-digests protect-owned config-protect-if-modified sandbox binpkg-dostrip binpkg-logs ebuild-locks fixlafiles usersandbox network-sandbox userpriv xattr sfperms binpkg-docompress multilib-strict unmerge-orphans unknown-features-warn strict distlocks"

[I] sys-libs/libcxxabi
Available versions: 6.0.1^t 7.1.0^t ()8.0.0^t ()8.0.1^t **9.0.0.9999l^t **10.0.0.9999l^t {+libunwind +static-libs test ABI_MIPS="n32 n64 o32" ABI_RISCV="lp64 lp64d" ABI_S390="32 64" ABI_X86="32 64 x32" ELIBC="musl"}
Installed versions: 8.0.1^t(07:29:13 PM 08/15/2019)(libunwind static-libs -test ABI_MIPS="-n32 -n64 -o32" ABI_RISCV="-lp64 -lp64d" ABI_S390="-32 -64" ABI_X86="32 64 -x32" ELIBC="-musl")
Homepage: https://libcxxabi.llvm.org/
Description: Low level support for a standard C++ library

emerged just now

[sophietheopossum]

hmmm... same problem experienced. javashin must have something we both don't have (other than good luck) i'll share my log in case it helps. javashin, could you post an emerge --info and maybe a build log too? perhaps there's a key difference with yours. it may be worth also checking that it isn't a hardware issue. this device is a dell latitude E6330 which comes with an intel i5-3320M.

i do notice javashin is compiling for 32 bit whereas we both seem to be going for 64 bit exclusively. gcc version or cflags does not appear to be the issue, however some other packages are higher versions on javashin's side

 * Package:    sys-libs/libcxxabi-8.0.1
 * Repository: gentoo
 * Maintainer: llvm@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux libunwind static-libs userland_GNU
 * FEATURES:   ccache network-sandbox preserve-libs sandbox userpriv usersandbox
sys-libs/libcxxabi: 36 seconds average for 1 merge
2019-07-03T18:09:23 >>> sys-libs/libcxxabi: 36 seconds
�]0;emerge 12:23:12 1|5 libcxxabi 00:36 (root@o.possum)� * FEATURES='ipc-sandbox pid-sandbox unmerge-orphans userpriv unmerge-logs merge-sync config-protect-if-modified parallel-fetch unknown-features-warn network-sandbox news assume-digests binpkg-docompress candy ebuild-locks compress-build-logs protect-owned distlocks fail-clean metadata-transfer ccache preserve-libs binpkg-logs sfperms userfetch fixlafiles multilib-strict sandbox binpkg-dostrip parallel-install usersync strict usersandbox'
 * CFLAGS='-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu'
 * CXXFLAGS='-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu'
 * FFLAGS='-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu'
 * FCFLAGS='-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu'
 * F77FLAGS='-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu'
 * LDFLAGS='-Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32'
 * MAKEOPTS='-j5'
 * gcc (Gentoo 9.1.0-r1 p1.1) 9.1.0
 * Linux o.possum 5.2.5-gentoo #3 SMP PREEMPT Mon Sep 2 09:24:30 BST 2019 x86_64 Intel(R) Core(TM) i5-3320M CPU @ 2.60GHz GenuineIntel GNU/Linux
>>> Unpacking source...
>>> Unpacking libcxxabi-8.0.1.src.tar.xz to /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Unpacking libcxx-8.0.1.src.tar.xz to /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Source unpacked in /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work
>>> Preparing source in /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
 * abi_x86_64.amd64: running multilib-minimal_abi_src_configure
>>> Working in BUILD_DIR: "/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64"
cmake -C /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_common_config.cmake -G Ninja -DCMAKE_INSTALL_PREFIX=/usr -DLIBCXXABI_LIBDIR_SUFFIX=64 -DLIBCXXABI_ENABLE_SHARED=ON -DLIBCXXABI_ENABLE_STATIC=yes -DLIBCXXABI_USE_LLVM_UNWINDER=yes -DLIBCXXABI_INCLUDE_TESTS=no -DLIBCXXABI_LIBCXX_INCLUDES=/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include -DLIBCXXABI_LIBUNWIND_INCLUDES=/usr/include -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_toolchain.cmake  /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src
loading initial cache file /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64/gentoo_common_config.cmake
-- The CXX compiler identification is GNU 9.1.0
-- The C compiler identification is GNU 9.1.0
-- Check for working CXX compiler: /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++
-- Check for working CXX compiler: /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Check for working C compiler: /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-gcc
-- Check for working C compiler: /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Configuring for standalone build.
-- Found LLVM_CONFIG_PATH as /usr/lib/llvm/8/bin/llvm-config
-- Linker detection: GNU Gold
-- Performing Test C_SUPPORTS_FPIC
-- Performing Test C_SUPPORTS_FPIC - Success
-- Performing Test CXX_SUPPORTS_FPIC
-- Performing Test CXX_SUPPORTS_FPIC - Success
-- Building with -fPIC
-- Performing Test SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG
-- Performing Test SUPPORTS_FVISIBILITY_INLINES_HIDDEN_FLAG - Success
-- Performing Test C_SUPPORTS_WERROR_DATE_TIME
-- Performing Test C_SUPPORTS_WERROR_DATE_TIME - Success
-- Performing Test CXX_SUPPORTS_WERROR_DATE_TIME
-- Performing Test CXX_SUPPORTS_WERROR_DATE_TIME - Success
-- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW
-- Performing Test C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW - Failed
-- Performing Test CXX_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW
-- Performing Test CXX_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW - Failed
-- Performing Test CXX_SUPPORTS_CXX11
-- Performing Test CXX_SUPPORTS_CXX11 - Success
-- Performing Test LINKER_SUPPORTS_COLOR_DIAGNOSTICS
-- Performing Test LINKER_SUPPORTS_COLOR_DIAGNOSTICS - Failed
-- Performing Test C_SUPPORTS_FNO_FUNCTION_SECTIONS
-- Performing Test C_SUPPORTS_FNO_FUNCTION_SECTIONS - Success
-- Performing Test C_SUPPORTS_FFUNCTION_SECTIONS
-- Performing Test C_SUPPORTS_FFUNCTION_SECTIONS - Success
-- Performing Test CXX_SUPPORTS_FFUNCTION_SECTIONS
-- Performing Test CXX_SUPPORTS_FFUNCTION_SECTIONS - Success
-- Performing Test C_SUPPORTS_FDATA_SECTIONS
-- Performing Test C_SUPPORTS_FDATA_SECTIONS - Success
-- Performing Test CXX_SUPPORTS_FDATA_SECTIONS
-- Performing Test CXX_SUPPORTS_FDATA_SECTIONS - Success
CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:781 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_ENABLE_EH'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:782 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_ENABLE_RTTI'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/lib64/llvm/8/lib64/cmake/llvm/HandleLLVMOptions.cmake:861 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'LLVM_EXPORT_SYMBOLS_FOR_PLUGINS'.
Call Stack (most recent call first):
  cmake/Modules/HandleOutOfTreeLLVM.cmake:97 (include)
  cmake/Modules/HandleOutOfTreeLLVM.cmake:140 (configure_out_of_tree_llvm)
  CMakeLists.txt:29 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Looking for fopen in c
-- Looking for fopen in c - found
-- Looking for __gcc_personality_v0 in gcc_s
-- Looking for __gcc_personality_v0 in gcc_s - found
-- Performing Test LIBCXXABI_HAS_NODEFAULTLIBS_FLAG
-- Performing Test LIBCXXABI_HAS_NODEFAULTLIBS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_FUNWIND_TABLES
-- Performing Test LIBCXXABI_HAS_FUNWIND_TABLES - Success
-- Performing Test LIBCXXABI_HAS_NO_EXCEPTIONS_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EXCEPTIONS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_NO_RTTI_FLAG
-- Performing Test LIBCXXABI_HAS_NO_RTTI_FLAG - Success
-- Performing Test LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_HAS_FSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_HAS_NOSTDINCXX_FLAG
-- Performing Test LIBCXXABI_HAS_NOSTDINCXX_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WALL_FLAG
-- Performing Test LIBCXXABI_HAS_WALL_FLAG - Success
-- Performing Test LIBCXXABI_HAS_W_FLAG
-- Performing Test LIBCXXABI_HAS_W_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_FUNCTION_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_FUNCTION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_VARIABLE_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_VARIABLE_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WUNUSED_PARAMETER_FLAG
-- Performing Test LIBCXXABI_HAS_WUNUSED_PARAMETER_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_HAS_WSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSTRICT_OVERFLOW_FLAG
-- Performing Test LIBCXXABI_HAS_WSTRICT_OVERFLOW_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WWRITE_STRINGS_FLAG
-- Performing Test LIBCXXABI_HAS_WWRITE_STRINGS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WCHAR_SUBSCRIPTS_FLAG
-- Performing Test LIBCXXABI_HAS_WCHAR_SUBSCRIPTS_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG
-- Performing Test LIBCXXABI_HAS_WMISMATCHED_TAGS_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WMISSING_BRACES_FLAG
-- Performing Test LIBCXXABI_HAS_WMISSING_BRACES_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSHORTEN_64_TO_32_FLAG
-- Performing Test LIBCXXABI_HAS_WSHORTEN_64_TO_32_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WSIGN_CONVERSION_FLAG
-- Performing Test LIBCXXABI_HAS_WSIGN_CONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSIGN_COMPARE_FLAG
-- Performing Test LIBCXXABI_HAS_WSIGN_COMPARE_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WSHADOW_FLAG
-- Performing Test LIBCXXABI_HAS_WSHADOW_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WCONVERSION_FLAG
-- Performing Test LIBCXXABI_HAS_WCONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WNEWLINE_EOF_FLAG
-- Performing Test LIBCXXABI_HAS_WNEWLINE_EOF_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_WUNDEF_FLAG
-- Performing Test LIBCXXABI_HAS_WUNDEF_FLAG - Success
-- Performing Test LIBCXXABI_HAS_PEDANTIC_FLAG
-- Performing Test LIBCXXABI_HAS_PEDANTIC_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WERROR_FLAG
-- Performing Test LIBCXXABI_HAS_WERROR_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WNO_ERROR_FLAG
-- Performing Test LIBCXXABI_HAS_WNO_ERROR_FLAG - Success
-- Performing Test LIBCXXABI_HAS_WX_FLAG
-- Performing Test LIBCXXABI_HAS_WX_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_WX_FLAG
-- Performing Test LIBCXXABI_HAS_NO_WX_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_EHSC_FLAG
-- Performing Test LIBCXXABI_HAS_EHSC_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_EHS_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EHS_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_EHA_FLAG
-- Performing Test LIBCXXABI_HAS_NO_EHA_FLAG - Failed
-- Performing Test LIBCXXABI_HAS_NO_GR_FLAG
-- Performing Test LIBCXXABI_HAS_NO_GR_FLAG - Failed
-- Looking for dladdr in dl
-- Looking for dladdr in dl - found
-- Looking for pthread_once in pthread
-- Looking for pthread_once in pthread - found
-- Looking for __cxa_thread_atexit_impl in c
-- Looking for __cxa_thread_atexit_impl in c - found
-- Performing Test LIBCXXABI_SUPPORTS_WERROR_EQ_RETURN_TYPE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WERROR_EQ_RETURN_TYPE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_W_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_W_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WALL_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WALL_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WCHAR_SUBSCRIPTS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WCHAR_SUBSCRIPTS_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WCONVERSION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WCONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WMISMATCHED_TAGS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WMISMATCHED_TAGS_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WMISSING_BRACES_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WMISSING_BRACES_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WNEWLINE_EOF_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WNEWLINE_EOF_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_FUNCTION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_FUNCTION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSHADOW_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSHADOW_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSHORTEN_64_TO_32_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSHORTEN_64_TO_32_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_COMPARE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_COMPARE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_CONVERSION_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSIGN_CONVERSION_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_ALIASING_EQ_2_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_ALIASING_EQ_2_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_OVERFLOW_EQ_4_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WSTRICT_OVERFLOW_EQ_4_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_PARAMETER_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_PARAMETER_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_VARIABLE_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNUSED_VARIABLE_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WWRITE_STRINGS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WWRITE_STRINGS_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WUNDEF_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WUNDEF_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WNO_ERROR_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WNO_ERROR_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_WX_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_WX_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_PEDANTIC_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_PEDANTIC_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_FSTRICT_ALIASING_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_FSTRICT_ALIASING_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_EHSC_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_EHSC_FLAG - Failed
-- Performing Test LIBCXXABI_SUPPORTS_FUNWIND_TABLES_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_FUNWIND_TABLES_FLAG - Success
-- Performing Test LIBCXXABI_SUPPORTS_NODEFAULTLIBS_FLAG
-- Performing Test LIBCXXABI_SUPPORTS_NODEFAULTLIBS_FLAG - Success
-- <<< Gentoo configuration >>>
Build type      RelWithDebInfo
Install path    /usr
Compiler flags:
C               -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -Werror=date-time -w -fdiagnostics-color -ffunction-sections -fdata-sections 
C++             -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections 
Linker flags:
Executable      -Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32
Module          -Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,-z,nodelete
Shared          -Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,-z,defs -Wl,-z,nodelete

-- Configuring done
-- Generating done
-- Build files have been written to: /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64
>>> Source configured.
>>> Compiling source in /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src ...
 * abi_x86_64.amd64: running multilib-minimal_abi_src_compile
>>> Working in BUILD_DIR: "/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64"
ninja -v -j5 -l0
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[2/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_default_handlers.cpp
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[13/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/stdlib_stdexcept.cpp
[14/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/fallback_malloc.cpp
[15/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/private_typeinfo.cpp
[16/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/stdlib_new_delete.cpp
[17/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_personality.cpp
[18/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_thread_atexit.cpp
[19/22] /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -DHAVE___CXA_THREAD_ATEXIT_IMPL -DLIBCXXABI_USE_LLVM_UNWINDER -D_LIBCPP_DISABLE_EXTERN_TEMPLATE -D_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS -D_LIBCXXABI_BUILDING_LIBRARY -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/include -I/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxx/include  -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -fPIC   -nostdinc++ -Werror=return-type -W -Wall -Wchar-subscripts -Wconversion -Wmissing-braces -Wunused-function -Wshadow -Wsign-compare -Wsign-conversion -Wstrict-aliasing=2 -Wstrict-overflow=4 -Wunused-parameter -Wunused-variable -Wwrite-strings -Wundef -Wno-error -pedantic -fstrict-aliasing -funwind-tables -D_DEBUG -std=c++11 -MD -MT src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o -MF src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o.d -o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o -c /var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src/src/cxa_exception.cpp
[20/22] : && /usr/bin/cmake -E remove lib64/libc++abi.a && /usr/bin/x86_64-pc-linux-gnu-ar qc lib64/libc++abi.a  src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o && /usr/bin/x86_64-pc-linux-gnu-ranlib lib64/libc++abi.a && :
[21/22] : && /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -fPIC -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,-z,defs -Wl,-z,nodelete  -nodefaultlibs -shared -Wl,-soname,libc++abi.so.1 -o lib64/libc++abi.so.1.0 src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib64:/usr/lib64/llvm/8/lib64" -lpthread -lc -lunwind && :
FAILED: lib64/libc++abi.so.1.0 
: && /usr/lib64/ccache/bin/x86_64-pc-linux-gnu-g++ -fPIC -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,--hash-style=gnu -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -w -fdiagnostics-color -ffunction-sections -fdata-sections  -Wl,--hash-style=gnu -O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -flto=4 -fuse-linker-plugin -march=native -pipe -falign-functions=32 -Wl,-z,defs -Wl,-z,nodelete  -nodefaultlibs -shared -Wl,-soname,libc++abi.so.1 -o lib64/libc++abi.so.1.0 src/CMakeFiles/cxxabi_objects.dir/cxa_aux_runtime.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_default_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_demangle.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception_storage.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_guard.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_handlers.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_unexpected.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_vector.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_virtual.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_stdexcept.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/abort_message.cpp.o src/CMakeFiles/cxxabi_objects.dir/fallback_malloc.cpp.o src/CMakeFiles/cxxabi_objects.dir/private_typeinfo.cpp.o src/CMakeFiles/cxxabi_objects.dir/stdlib_new_delete.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_exception.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_personality.cpp.o src/CMakeFiles/cxxabi_objects.dir/cxa_thread_atexit.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib64:/usr/lib64/llvm/8/lib64" -lpthread -lc -lunwind && :
/var/tmp/portage/sys-libs/libcxxabi-8.0.1/temp/libc++abi.so.1.0.7LmiNs.ltrans0.ltrans.o:<artificial>:DW.ref.__gcc_personality_v0: error: undefined reference to '__gcc_personality_v0'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
 * ERROR: sys-libs/libcxxabi-8.0.1::gentoo failed (compile phase):
 *   ninja -v -j5 -l0 failed
 * 
 * Call stack:
 *     ebuild.sh, line  125:  Called src_compile
 *   environment, line 5533:  Called cmake-multilib_src_compile
 *   environment, line 2084:  Called multilib-minimal_src_compile
 *   environment, line 3934:  Called multilib_foreach_abi 'multilib-minimal_abi_src_compile'
 *   environment, line 4178:  Called multibuild_foreach_variant '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 3869:  Called _multibuild_run '_multilib_multibuild_wrapper' 'multilib-minimal_abi_src_compile'
 *   environment, line 3867:  Called _multilib_multibuild_wrapper 'multilib-minimal_abi_src_compile'
 *   environment, line 1749:  Called multilib-minimal_abi_src_compile
 *   environment, line 3928:  Called multilib_src_compile
 *   environment, line 4398:  Called cmake-utils_src_compile
 *   environment, line 2104:  Called cmake-utils_src_make
 *   environment, line 2285:  Called _cmake_ninja_src_make
 *   environment, line 1542:  Called eninja
 *   environment, line 2615:  Called die
 * The specific snippet of code:
 *       "$@" || die "${nonfatal_args[@]}" "${*} failed"
 * 
 * If you need support, post the output of `emerge --info '=sys-libs/libcxxabi-8.0.1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-libs/libcxxabi-8.0.1::gentoo'`.
 * The complete build log is located at '/var/log/portage/sys-libs:libcxxabi-8.0.1:20190916-112311.log.gz'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-libs/libcxxabi-8.0.1/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src-abi_x86_64.amd64'
 * S: '/var/tmp/portage/sys-libs/libcxxabi-8.0.1/work/libcxxabi-8.0.1.src'

[javashin]

Hi @prototype99 here is my new system with some minor changes in Cflags and Still compiles fine I cant live without clang i use it to compile chromium firefox and some others big apps >>>

sys-libs/libcxxabi-8.0.1::gentoo was built with the following: USE="libunwind static-libs -test" ABI_X86="32 (64) (-x32)" CFLAGS="-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -fuse-linker-plugin -march=native -mfpmath=sse+387 -falign-functions=32 -flimit-function-alignment -fuse-ld=bfd -fno-plt -fno-math-errno -fno-trapping-math -fno-stack-protector -pipe -Wl,-O2 -Wl,--as-needed,-z,now -Wl,--hash-style=gnu" CXXFLAGS="-O3 -fgraphite-identity -floop-nest-optimize -fdevirtualize-at-ltrans -fipa-pta -fno-semantic-interposition -fuse-linker-plugin -march=native -mfpmath=sse+387 -falign-functions=32 -flimit-function-alignment -fuse-ld=bfd -fno-plt -fno-math-errno -fno-trapping-math -fno-stack-protector -pipe -Wl,-O2 -Wl,--as-needed,-z,now -Wl,--hash-style=gnu" FEATURES="fixlafiles preserve-libs ebuild-locks parallel-fetch sandbox unmerge-logs xattr pid-sandbox ipc-sandbox sfperms userpriv distlocks network-sandbox binpkg-logs usersync assume-digests news unmerge-orphans strict binpkg-dostrip unknown-features-warn buildpkg usersandbox protect-owned multilib-strict merge-sync config-protect-if-modified userfetch binpkg-docompress"

here is my emerge --info >>>
https://gist.github.com/javashin/9c0b6cc9b688e5e307eed68f011da903

[elsandosgrande]

https://gist.github.com/elsandosgrande/5701ce25f9db5842e3f199245c66e1f2

Even by using the gold linker, I could not recreate the error. @ArniDagur, I plead you to share your emerge --info output and your make.conf contents! @prototype99, you as well.

[ArniDagur]

@elsandosgrande I don't have this problem anymore.

[sophietheopossum]

alright! as far as i understand they apply from the top downwards. i didn't say yet because i wanted to try some further testing, but i was also able to compile by commenting the source line.
global: https://raw.githubusercontent.com/prototype99/prototype99/master/profiles/default/make.defaults
laptop specific tweaks: https://raw.githubusercontent.com/prototype99/prototype99/master/profiles/default/linux/amd64/17.0/systemd/laptop/make.defaults
local: https://raw.githubusercontent.com/prototype99/prototype99/master/profiles-local/make.conf

what did you do to fix it?

[ArniDagur]

I don't recall that I did anything specific, or even which machine this was on.

[sophietheopossum]

huh, perhaps it truly is to do with certain hardware. I'm going to test some install scripts on an amd machine so i'll see if it behaves any differently