ninja: Entering directory `out/gn'
[1/7535] AR lib/libLLVMCodeGenTypes.a
[2/7535] 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'
[3/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.Hash.o
[4/7535] CXX obj/llvm/lib/DebugInfo/PDB/PDB.GenericError.o
[5/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.LookupResult.o
[6/7535] CXX obj/llvm/lib/Debuginfod/Debuginfod.HTTPClient.o
[7/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.Header.o
[8/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumLineNumbers.o
[9/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.LineTable.o
[10/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.DbiModuleDescriptor.o
[11/7535] CXX obj/llvm/lib/DebugInfo/PDB/PDB.IPDBSourceFile.o
[12/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeTypeBuiltin.o
[13/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.HashTable.o
[14/7535] CXX obj/llvm/lib/Debuginfod/Debuginfod.BuildIDFetcher.o
[15/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.InfoStreamBuilder.o
[16/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVSupport.o
[17/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.EnumTables.o
[18/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativePublicSymbol.o
[19/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.DbiModuleList.o
[20/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.DbiModuleDescriptorBuilder.o
[21/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.InfoStream.o
[22/7535] CXX obj/llvm/lib/Debuginfod/Debuginfod.HTTPServer.o
[23/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.FormatUtil.o
[24/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumSymbols.o
[25/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.InjectedSourceStream.o
[26/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.GlobalsStream.o
[27/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeLineNumber.o
[28/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeCompilandSymbol.o
[29/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVSourceLanguage.o
[30/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumTypes.o
[31/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumModules.o
[32/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeTypeArray.o
[33/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.InlineInfo.o
[34/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.MergedFunctionsInfo.o
[35/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeSymbolEnumerator.o
[36/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeRawSymbol.o
[37/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumInjectedSources.o
[38/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.ModuleDebugStream.o
[39/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeSourceFile.o
[40/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeEnumGlobals.o
[41/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeExeSymbol.o
[42/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NamedStreamMap.o
[43/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.DbiStream.o
[44/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.DbiStreamBuilder.o
[45/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeInlineSiteSymbol.o
[46/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeFunctionSymbol.o
[47/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.LinePrinter.o
[48/7535] CXX obj/llvm/lib/DebugInfo/GSYM/GSYM.ObjectFileTransformer.o
[49/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.GSIStreamBuilder.o
[50/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVObject.o
[51/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVSort.o
[52/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVLine.o
[53/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVRange.o
[54/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVLocation.o
[55/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVSymbol.o
[56/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.NativeSession.o
[57/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVType.o
[58/7535] CXX obj/llvm/lib/DebugInfo/PDB/Native/PDB.InputFile.o
[59/7535] CXX obj/llvm/lib/Debuginfod/Debuginfod.Debuginfod.o
[60/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVOptions.o
[61/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVReader.o
[62/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Readers/LogicalView.LVBinaryReader.o
[63/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Core/LogicalView.LVScope.o
[64/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Readers/LogicalView.LVDWARFReader.o
[65/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/LogicalView.LVReaderHandler.o
[66/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Readers/LogicalView.LVCodeViewReader.o
[67/7535] CXX obj/llvm/lib/DebugInfo/LogicalView/Readers/LogicalView.LVCodeViewVisitor.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.