ninja: Entering directory `out/gn'
[1/4343] AR lib/libLLVMFrontendDriver.a
[2/4343] 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'
[3/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetSubtargetInfo.o
[4/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StaticDataAnnotator.o
[5/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetOptionsImpl.o
[6/4343] CXX obj/llvm/lib/CodeGen/CodeGen.SpillPlacement.o
[7/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackMapLivenessAnalysis.o
[8/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StaticDataSplitter.o
[9/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetSchedule.o
[10/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetFrameLoweringImpl.o
[11/4343] CXX obj/llvm/lib/CodeGen/CodeGen.WasmEHPrepare.o
[12/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SDNodeInfo.o
[13/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TailDuplication.o
[14/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGAddressAnalysis.o
[15/4343] CXX obj/llvm/lib/CodeGen/CodeGen.XRayInstrumentation.o
[16/4343] CXX obj/llvm/lib/CodeGen/CodeGen.UnreachableBlockElim.o
[17/4343] CXX obj/llvm/lib/CodeGen/CodeGen.SjLjEHPrepare.o
[18/4343] CXX obj/llvm/lib/CodeGen/CodeGen.WindowsSecureHotPatching.o
[19/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.ScheduleDAGVLIW.o
[20/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.ResourcePriorityQueue.o
[21/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeTypesGeneric.o
[22/4343] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.AsmPrinterInlineAsm.o
[23/4343] CXX obj/llvm/lib/CodeGen/CodeGen.VirtRegMap.o
[24/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGPrinter.o
[25/4343] CXX obj/llvm/lib/CodeGen/CodeGen.SwiftErrorValueTracking.o
[26/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TailDuplicator.o
[27/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetRegisterInfo.o
[28/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackFrameLayoutAnalysisPass.o
[29/4343] CXX obj/llvm/lib/CodeGen/CodeGen.SwitchLoweringUtils.o
[30/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackMaps.o
[31/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeTypes.o
[32/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.ScheduleDAGFast.o
[33/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackSlotColoring.o
[34/4343] CXX obj/llvm/lib/CodeGen/CodeGen.VLIWMachineScheduler.o
[35/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetPassConfig.o
[36/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.ScheduleDAGRRList.o
[37/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TypePromotion.o
[38/4343] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DebugHandlerBase.o
[39/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.InstrEmitter.o
[40/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.FunctionLoweringInfo.o
[41/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGDumper.o
[42/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.ScheduleDAGSDNodes.o
[43/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeFloatTypes.o
[44/4343] CXX obj/llvm/lib/CodeGen/CodeGen.WinEHPrepare.o
[45/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TwoAddressInstructionPass.o
[46/4343] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DbgEntityHistoryCalculator.o
[47/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackColoring.o
[48/4343] CXX obj/llvm/lib/CodeGen/CodeGen.StackProtector.o
[49/4343] CXX obj/llvm/lib/CodeGen/CodeGen.WindowScheduler.o
[50/4343] CXX obj/llvm/lib/CodeGen/CodeGen.SplitKit.o
[51/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeVectorOps.o
[52/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetLoweringBase.o
[53/4343] CXX obj/llvm/lib/CodeGen/CodeGen.TargetInstrInfo.o
[54/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.StatepointLowering.o
[55/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeIntegerTypes.o
[56/4343] CXX obj/llvm/lib/LTO/LTO.LTOCodeGenerator.o
[57/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeDAG.o
[58/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.FastISel.o
[59/4343] CXX obj/llvm/lib/CodeGen/MIRParser/MIRParser.MIRParser.o
[60/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.LegalizeVectorTypes.o
[61/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGISel.o
[62/4343] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.CodeViewDebug.o
[63/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.TargetLowering.o
[64/4343] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.AsmPrinter.o
[65/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAG.o
[66/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGBuilder.o
[67/4343] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.DAGCombiner.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.