ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/1330] AR lib/libLLVMCFGuard.a
[2/1330] 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'
[3/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CanonicalizeAliases.o
[4/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.DXILUpgrade.o
[5/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.GlobalSplit.o
[6/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CtorUtils.o
[7/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.ObjCARCExpand.o
[8/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.PGOForceFunctionAttrs.o
[9/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.RealtimeSanitizer.o
[10/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.InferFunctionAttrs.o
[11/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.LoopExtractor.o
[12/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.ControlFlowUtils.o
[13/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.ProvenanceAnalysis.o
[14/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.PtrState.o
[15/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CodeMoverUtils.o
[16/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.ObjCARC.o
[17/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.DependencyAnalysis.o
[18/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.KCFI.o
[19/1330] CXX obj/llvm/lib/Transforms/Scalar/Scalar.AnnotationRemarks.o
[20/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CanonicalizeFreezeInLoops.o
[21/1330] CXX obj/llvm/lib/Transforms/Scalar/Scalar.AlignmentFromAssumptions.o
[22/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.LowerAllowCheckPass.o
[23/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.ValueProfileCollector.o
[24/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineAtomicRMW.o
[25/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.ObjCARCContract.o
[26/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.SanitizerBinaryMetadata.o
[27/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.StripSymbols.o
[28/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.SampleContextTracker.o
[29/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.SCCP.o
[30/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.TypeSanitizer.o
[31/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.ThreadSanitizer.o
[32/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.PGOCtxProfFlattening.o
[33/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.MergeFunctions.o
[34/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.ModuleInliner.o
[35/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.NumericalStabilitySanitizer.o
[36/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.SampleProfileProbe.o
[37/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.SanitizerCoverage.o
[38/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.HotColdSplitting.o
[39/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.PGOCtxProfLowering.o
[40/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.MemProfInstrumentation.o
[41/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineLoadStoreAlloca.o
[42/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.PGOMemOPSizeOpt.o
[43/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CloneFunction.o
[44/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.Inliner.o
[45/1330] CXX obj/llvm/lib/Transforms/Utils/Utils.CodeExtractor.o
[46/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineCasts.o
[47/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.PartialInlining.o
[48/1330] CXX obj/llvm/lib/Transforms/Scalar/Scalar.ADCE.o
[49/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.ThinLTOBitcodeWriter.o
[50/1330] CXX obj/llvm/lib/Transforms/ObjCARC/ObjCARC.ObjCARCOpts.o
[51/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineAddSub.o
[52/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.SampleProfileMatcher.o
[53/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.HWAddressSanitizer.o
[54/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.IndirectCallPromotion.o
[55/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.InstrProfiling.o
[56/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineAndOrXor.o
[57/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.MemorySanitizer.o
[58/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.MemProfUse.o
[59/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.IROutliner.o
[60/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineCalls.o
[61/1330] CXX obj/llvm/lib/Transforms/InstCombine/InstCombine.InstCombineCompares.o
[62/1330] CXX obj/llvm/lib/Transforms/Instrumentation/Instrumentation.PGOInstrumentation.o
[63/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.LowerTypeTests.o
[64/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.WholeProgramDevirt.o
[65/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.SampleProfile.o
[66/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.OpenMPOpt.o
[67/1330] CXX obj/llvm/lib/Transforms/IPO/IPO.MemProfContextDisambiguation.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.