ninja: Entering directory `out/gn'
[1/8526] AR lib/liblldbVersion.a
[2/8526] AR lib/libLLVMCAS.a
[3/8526] ACTION //libcxx/include:write_config_site(//llvm/utils/gn/build/toolchain:unix)
FAILED: include/c++/v1/__config_site 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o include/c++/v1/__config_site ../../libcxx/include/__config_site.in _LIBCPP_ABI_FORCE_ITANIUM= _LIBCPP_ABI_FORCE_MICROSOFT= _LIBCPP_ABI_VERSION=1 _LIBCPP_ASSERTION_SEMANTIC_DEFAULT=_LIBCPP_ASSERTION_SEMANTIC_HARDENING_DEPENDENT _LIBCPP_EXTRA_SITE_DEFINES= _LIBCPP_HAS_FILESYSTEM=1 _LIBCPP_HAS_THREADS=1 _LIBCPP_HAS_MONOTONIC_CLOCK=1 _LIBCPP_HAS_MUSL_LIBC= _LIBCPP_HAS_THREAD_API_PTHREAD= _LIBCPP_HAS_THREAD_API_EXTERNAL= _LIBCPP_HAS_THREAD_API_WIN32= _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS= _LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS= _LIBCPP_NO_VCRUNTIME= _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION= _LIBCPP_HAS_RANDOM_DEVICE=1 _LIBCPP_HAS_LOCALIZATION=1 _LIBCPP_HAS_UNICODE=1 _LIBCPP_HAS_WIDE_CHARACTERS=1 _LIBCPP_HAS_TERMINAL=1 _LIBCPP_INSTRUMENTED_WITH_ASAN= _LIBCPP_ABI_DEFINES= _LIBCPP_HARDENING_MODE_DEFAULT=_LIBCPP_HARDENING_MODE_NONE _LIBCPP_LIBC_PICOLIBC= _LIBCPP_LIBC_NEWLIB= _LIBCPP_PSTL_BACKEND_LIBDISPATCH= _LIBCPP_PSTL_BACKEND_SERIAL= _LIBCPP_PSTL_BACKEND_STD_THREAD=1 _LIBCPP_ABI_NAMESPACE=__1 _LIBCPP_HAS_TIME_ZONE_DATABASE=1
Traceback (most recent call last):
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 122, in <module>
    sys.exit(main())
             ~~~~^^
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 75, in main
    if values[var] == "0":
       ~~~~~~^^^^^
KeyError: '_LIBCPP_LIBC_LLVM_LIBC'
[4/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.Line.o
[5/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.MachOObjectFormat.o
[6/8526] CXX obj/llvm/lib/Frontend/Directive/Directive.Spelling.o
[7/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.ObjectFormats.o
[8/8526] CXX obj/llvm/lib/Support/Support.ARMBuildAttributes.o
[9/8526] CXX obj/llvm/lib/Extensions/Extensions.Extensions.o
[10/8526] CXX obj/llvm/lib/LineEditor/LineEditor.LineEditor.o
[11/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.SymbolStringPool.o
[12/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.Formatters.o
[13/8526] CXX obj/llvm/lib/Support/Support.APSInt.o
[14/8526] CXX obj/llvm/lib/DebugInfo/MSF/MSF.MSFError.o
[15/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.OrcError.o
[16/8526] CXX obj/llvm/lib/Plugins/Plugins.PassPlugin.o
[17/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkFormat.o
[18/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugSymbolRVASubsection.o
[19/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugSubsection.o
[20/8526] CXX obj/llvm/lib/Remarks/Remarks.Remark.o
[21/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugSymbolsSubsection.o
[22/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugSubsectionRecord.o
[23/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeTableCollection.o
[24/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeHashing.o
[25/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugLinesSubsection.o
[26/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkStringTable.o
[27/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkStreamer.o
[28/8526] CXX obj/llvm/lib/Option/Option.Arg.o
[29/8526] CXX obj/llvm/lib/Option/Option.Option.o
[30/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugStringTableSubsection.o
[31/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.DebugSubsectionVisitor.o
[32/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.StringsAndChecksums.o
[33/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.OrcRTBridge.o
[34/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.AllocationActions.o
[35/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.RecordSerialization.o
[36/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.SymbolSerializer.o
[37/8526] CXX obj/llvm/lib/ExecutionEngine/Orc/Shared/Shared.SimpleRemoteEPCUtils.o
[38/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeRecordHelpers.o
[39/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeIndex.o
[40/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeIndexDiscovery.o
[41/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.MergingTypeTableBuilder.o
[42/8526] CXX obj/llvm/lib/Support/Support.APFixedPoint.o
[43/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.GlobalTypeTableBuilder.o
[44/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkSerializer.o
[45/8526] CXX obj/llvm/lib/Support/Support.ARMAttributeParser.o
[46/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.SymbolRecordMapping.o
[47/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.SimpleTypeSerializer.o
[48/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.LazyRandomTypeCollection.o
[49/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.EnumTables.o
[50/8526] CXX obj/llvm/lib/Option/Option.ArgList.o
[51/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.RecordName.o
[52/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.SymbolRecordHelpers.o
[53/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkParser.o
[54/8526] CXX obj/llvm/lib/DebugInfo/MSF/MSF.MappedBlockStream.o
[55/8526] CXX obj/llvm/lib/Remarks/Remarks.RemarkLinker.o
[56/8526] CXX obj/llvm/lib/Remarks/Remarks.YAMLRemarkParser.o
[57/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeStreamMerger.o
[58/8526] CXX obj/llvm/lib/Remarks/Remarks.YAMLRemarkSerializer.o
[59/8526] CXX obj/llvm/lib/DebugInfo/MSF/MSF.MSFBuilder.o
[60/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeDumpVisitor.o
[61/8526] CXX obj/llvm/lib/Remarks/Remarks.BitstreamRemarkSerializer.o
[62/8526] CXX obj/llvm/lib/Option/Option.OptTable.o
[63/8526] CXX obj/llvm/lib/Remarks/Remarks.BitstreamRemarkParser.o
[64/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.TypeRecordMapping.o
[65/8526] CXX obj/llvm/lib/DebugInfo/CodeView/CodeView.SymbolDumper.o
[66/8526] CXX obj/llvm/lib/Support/Support.APInt.o
[67/8526] CXX obj/llvm/lib/Support/Support.APFloat.o
[68/8526] CXX obj/llvm/lib/FileCheck/FileCheck.FileCheck.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.