ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/1264] 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_INSTRUMENTED_WITH_ASAN= _LIBCPP_ABI_DEFINES= _LIBCPP_HARDENING_MODE_DEFAULT=_LIBCPP_HARDENING_MODE_NONE _LIBCPP_LIBC_PICOLIBC= _LIBCPP_LIBC_NEWLIB= _LIBCPP_LIBC_LLVM_LIBC= _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_HAS_THREAD_API_C11'
[2/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerGuardIntrinsic.o
[3/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerAtomicPass.o
[4/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.DemoteRegToStack.o
[5/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerExpectIntrinsic.o
[6/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.EscapeEnumerator.o
[7/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.InstSimplifyPass.o
[8/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.GlobalStatus.o
[9/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerWidenableCondition.o
[10/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.FlattenCFG.o
[11/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.EntryExitInstrumenter.o
[12/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.FunctionComparator.o
[13/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.GuardUtils.o
[14/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.InferAlignment.o
[15/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.FixIrreducible.o
[16/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.Float2Int.o
[17/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.InjectTLIMappings.o
[18/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.BDCE.o
[19/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.DropUnnecessaryAssumes.o
[20/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.IRNormalizer.o
[21/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopAccessAnalysisPrinter.o
[22/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.DCE.o
[23/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.Evaluator.o
[24/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopRotation.o
[25/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.DebugSSAUpdater.o
[26/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopInstSimplify.o
[27/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopUnrollAndJamPass.o
[28/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerConstantIntrinsics.o
[29/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.CallSiteSplitting.o
[30/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.DivRemPairs.o
[31/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.InductiveRangeCheckElimination.o
[32/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopBoundSplit.o
[33/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopSink.o
[34/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopTermFold.o
[35/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopPredication.o
[36/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopDataPrefetch.o
[37/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.JumpTableToSwitch.o
[38/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.GuardWidening.o
[39/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopPassManager.o
[40/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.GVNSink.o
[41/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopVersioningLICM.o
[42/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.CorrelatedValuePropagation.o
[43/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopDeletion.o
[44/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.InferAddressSpaces.o
[45/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.ConstantHoisting.o
[46/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopFuse.o
[47/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopSimplifyCFG.o
[48/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.EarlyCSE.o
[49/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopDistribute.o
[50/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopLoadElimination.o
[51/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.Debugify.o
[52/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.GVNHoist.o
[53/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.IndVarSimplify.o
[54/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopFlatten.o
[55/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopUnrollPass.o
[56/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.JumpThreading.o
[57/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.ConstraintElimination.o
[58/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.DFAJumpThreading.o
[59/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopIdiomRecognize.o
[60/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopInterchange.o
[61/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.DeadStoreElimination.o
[62/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.GVN.o
[63/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LICM.o
[64/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LowerMatrixIntrinsics.o
[65/1264] CXX obj/llvm/lib/Transforms/Utils/Utils.InlineFunction.o
[66/1264] CXX obj/llvm/lib/Transforms/Scalar/Scalar.LoopStrengthReduce.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.