ninja: Entering directory `out/gn'
[1/4708] AR lib/libLLVMCAS.a
[2/4708] AR lib/libLLVMAnalysis.a
[3/4708] 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'
[4/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GCMetadataPrinter.o
[5/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LibcallLoweringInfo.o
[6/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GCEmptyBasicBlocks.o
[7/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GCMetadata.o
[8/4708] CXX obj/llvm/lib/CodeGen/CodeGen.IntrinsicLowering.o
[9/4708] CXX obj/llvm/lib/CodeGen/CodeGen.EdgeBundles.o
[10/4708] CXX obj/llvm/lib/CodeGen/CodeGen.FuncletLayout.o
[11/4708] CXX obj/llvm/lib/CodeGen/LiveDebugValues/CodeGen.LiveDebugValues.o
[12/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LazyMachineBlockFrequencyInfo.o
[13/4708] CXX obj/llvm/lib/CodeGen/CodeGen.IndirectBrExpandPass.o
[14/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InsertCodePrefetch.o
[15/4708] CXX obj/llvm/lib/CodeGen/CodeGen.DeadMachineInstructionElim.o
[16/4708] CXX obj/llvm/lib/CodeGen/CodeGen.DetectDeadLanes.o
[17/4708] CXX obj/llvm/lib/CodeGen/CodeGen.EHContGuardTargets.o
[18/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InterferenceCache.o
[19/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LiveIntervalCalc.o
[20/4708] CXX obj/llvm/lib/CodeGen/CodeGen.FEntryInserter.o
[21/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LiveIntervalUnion.o
[22/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExpandReductions.o
[23/4708] CXX obj/llvm/lib/CodeGen/CodeGen.DroppedVariableStatsMIR.o
[24/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExpandPostRAPseudos.o
[25/4708] CXX obj/llvm/lib/CodeGen/CodeGen.JMCInstrumenter.o
[26/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExecutionDomainFix.o
[27/4708] CXX obj/llvm/lib/CodeGen/CodeGen.FaultMaps.o
[28/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InitUndef.o
[29/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ImplicitNullChecks.o
[30/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LatencyPriorityQueue.o
[31/4708] CXX obj/llvm/lib/CodeGen/CodeGen.CallingConvLower.o
[32/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LexicalScopes.o
[33/4708] CXX obj/llvm/lib/CodeGen/CodeGen.CriticalAntiDepBreaker.o
[34/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LiveInterval.o
[35/4708] CXX obj/llvm/lib/CodeGen/CodeGen.FinalizeISel.o
[36/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExpandVectorPredication.o
[37/4708] CXX obj/llvm/lib/CodeGen/CodeGen.HardwareLoops.o
[38/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExpandMemCmp.o
[39/4708] CXX obj/llvm/lib/CodeGen/CodeGen.KCFI.o
[40/4708] CXX obj/llvm/lib/CodeGen/CodeGen.CommandFlags.o
[41/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.Localizer.o
[42/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GlobalMerge.o
[43/4708] CXX obj/llvm/lib/CodeGen/CodeGen.EarlyIfConversion.o
[44/4708] CXX obj/llvm/lib/CodeGen/CodeGen.DFAPacketizer.o
[45/4708] CXX obj/llvm/lib/CodeGen/CodeGen.DwarfEHPrepare.o
[46/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ExpandIRInsts.o
[47/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GlobalMergeFunctions.o
[48/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.LoadStoreOpt.o
[49/4708] CXX obj/llvm/lib/CodeGen/CodeGen.Analysis.o
[50/4708] CXX obj/llvm/lib/CodeGen/CodeGen.FixupStatepointCallerSaved.o
[51/4708] CXX obj/llvm/lib/CodeGen/CodeGen.GCRootLowering.o
[52/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.RegBankSelect.o
[53/4708] CXX obj/llvm/lib/CodeGen/CodeGen.AtomicExpandPass.o
[54/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.MachineIRBuilder.o
[55/4708] CXX obj/llvm/lib/CodeGen/CodeGen.IfConversion.o
[56/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.Utils.o
[57/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InterleavedLoadCombinePass.o
[58/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.Legalizer.o
[59/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InlineSpiller.o
[60/4708] CXX obj/llvm/lib/CodeGen/CodeGen.InterleavedAccessPass.o
[61/4708] CXX obj/llvm/lib/CodeGen/CodeGen.CodeGenTargetMachineImpl.o
[62/4708] CXX obj/llvm/lib/CodeGen/CodeGen.ComplexDeinterleavingPass.o
[63/4708] CXX obj/llvm/lib/CodeGen/CodeGen.BasicTargetTransformInfo.o
[64/4708] CXX obj/llvm/lib/CodeGen/CodeGen.LiveDebugVariables.o
[65/4708] CXX obj/llvm/lib/CodeGen/LiveDebugValues/CodeGen.VarLocBasedImpl.o
[66/4708] CXX obj/llvm/lib/CodeGen/GlobalISel/GlobalISel.LegalizerHelper.o
[67/4708] CXX obj/llvm/lib/CodeGen/LiveDebugValues/CodeGen.InstrRefBasedImpl.o
[68/4708] CXX obj/llvm/lib/CodeGen/CodeGen.CodeGenPrepare.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.