ninja: Entering directory `out/gn'
[1/6778] AR lib/libLLVMCoverage.a
[2/6778] 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'
[3/6778] LINK obj/llvm/unittests/BinaryFormat/BinaryFormatTests
[4/6778] LINK obj/llvm/unittests/Remarks/RemarksTests
[5/6778] LINK obj/llvm/unittests/DebugInfo/Symbolizer/DebugInfoSymbolizerTests
[6/6778] LINK obj/llvm/unittests/InterfaceStub/InterfaceStubTests
[7/6778] LINK obj/llvm/unittests/Debuginfod/DebuginfodTests
[8/6778] LINK obj/llvm/unittests/DebugInfo/BTF/DebugInfoBTFTests
[9/6778] LINK ./bin/llvm-ctxprof-util
[10/6778] LINK obj/llvm/unittests/Object/ObjectTests
[11/6778] LINK obj/llvm/unittests/ObjectYAML/ObjectYAMLTests
[12/6778] LINK ./bin/llvm-profdata
[13/6778] LINK obj/llvm/unittests/DebugInfo/PDB/DebugInfoPDBTests
[14/6778] LINK obj/llvm/unittests/ObjCopy/ObjCopyTests
[15/6778] LINK ./bin/llvm-cov
[16/6778] CXX obj/llvm/unittests/Support/SupportTests.CRCTest.o
[17/6778] CXX obj/llvm/unittests/Support/SupportTests.MD5Test.o
[18/6778] CXX obj/llvm/unittests/Support/SupportTests.ELFAttributeParserTest.o
[19/6778] CXX obj/llvm/unittests/Support/SupportTests.MemoryBufferRefTest.o
[20/6778] CXX obj/llvm/unittests/Support/SupportTests.ErrnoTest.o
[21/6778] CXX obj/llvm/unittests/Support/SupportTests.ConvertEBCDICTest.o
[22/6778] CXX obj/llvm/unittests/Support/SupportTests.Format.o
[23/6778] CXX obj/llvm/unittests/Support/SupportTests.DJBTest.o
[24/6778] CXX obj/llvm/unittests/Support/SupportTests.FSUniqueIDTest.o
[25/6778] CXX obj/llvm/unittests/Support/SupportTests.CachePruningTest.o
[26/6778] CXX obj/llvm/unittests/Support/SupportTests.ManagedStatic.o
[27/6778] CXX obj/llvm/unittests/Support/SupportTests.BlockFrequencyTest.o
[28/6778] CXX obj/llvm/unittests/Support/SupportTests.GenericDomTreeTest.o
[29/6778] CXX obj/llvm/unittests/Support/SupportTests.CompressionTest.o
[30/6778] CXX obj/llvm/unittests/Support/SupportTests.DebugTest.o
[31/6778] CXX obj/llvm/unittests/Support/SupportTests.ExtensibleRTTITest.o
[32/6778] CXX obj/llvm/unittests/Support/SupportTests.DebugCounterTest.o
[33/6778] CXX obj/llvm/unittests/Support/SupportTests.CSKYAttributeParserTest.o
[34/6778] CXX obj/llvm/unittests/Support/SupportTests.InstructionCostTest.o
[35/6778] CXX obj/llvm/unittests/Support/SupportTests.EndianStreamTest.o
[36/6778] CXX obj/llvm/unittests/Support/SupportTests.ErrorOrTest.o
[37/6778] CXX obj/llvm/unittests/Support/SupportTests.ExponentialBackoffTest.o
[38/6778] CXX obj/llvm/unittests/Support/SupportTests.Chrono.o
[39/6778] CXX obj/llvm/unittests/Support/SupportTests.IndexedAccessorTest.o
[40/6778] CXX obj/llvm/unittests/Support/SupportTests.EndianTest.o
[41/6778] CXX obj/llvm/unittests/Support/SupportTests.DivisionByConstantTest.o
[42/6778] CXX obj/llvm/unittests/Support/SupportTests.LockFileManagerTest.o
[43/6778] CXX obj/llvm/unittests/Support/SupportTests.LineIteratorTest.o
[44/6778] CXX obj/llvm/unittests/Support/SupportTests.CheckedArithmeticTest.o
[45/6778] CXX obj/llvm/unittests/Support/SupportTests.MatchersTest.o
[46/6778] CXX obj/llvm/unittests/Support/SupportTests.InterleavedRangeTest.o
[47/6778] CXX obj/llvm/unittests/Support/SupportTests.CrashRecoveryTest.o
[48/6778] CXX obj/llvm/unittests/Support/SupportTests.FileOutputBufferTest.o
[49/6778] CXX obj/llvm/unittests/Support/SupportTests.BranchProbabilityTest.o
[50/6778] CXX obj/llvm/unittests/Support/SupportTests.Caching.o
[51/6778] CXX obj/llvm/unittests/Support/SupportTests.Casting.o
[52/6778] CXX obj/llvm/unittests/Support/SupportTests.DebugLogTest.o
[53/6778] CXX obj/llvm/unittests/Support/SupportTests.IntegerInclusiveIntervalTest.o
[54/6778] CXX obj/llvm/unittests/Support/SupportTests.GlobPatternTest.o
[55/6778] CXX obj/llvm/unittests/Support/SupportTests.FileCollectorTest.o
[56/6778] CXX obj/llvm/unittests/Support/SupportTests.JobserverTest.o
[57/6778] CXX obj/llvm/unittests/Support/SupportTests.LEB128Test.o
[58/6778] CXX obj/llvm/unittests/Support/SupportTests.DataExtractorTest.o
[59/6778] CXX obj/llvm/unittests/Support/SupportTests.ConvertUTFTest.o
[60/6778] CXX obj/llvm/unittests/Support/SupportTests.KnownBitsTest.o
[61/6778] CXX obj/llvm/unittests/Support/SupportTests.FormatVariadicTest.o
[62/6778] CXX obj/llvm/unittests/Support/SupportTests.BinaryStreamTest.o
[63/6778] CXX obj/llvm/unittests/Support/SupportTests.JSONTest.o
[64/6778] CXX obj/llvm/unittests/Support/SupportTests.HashBuilderTest.o
[65/6778] CXX obj/llvm/unittests/Support/SupportTests.ErrorTest.o
[66/6778] CXX obj/llvm/unittests/Support/SupportTests.CommandLineTest.o
[67/6778] CXX obj/llvm/unittests/Support/SupportTests.MathExtrasTest.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.