ninja: Entering directory `out/gn'
[1/1] Regenerating ninja files
[1/2723] 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_EXTRA_SITE_DEFINES= _LIBCPP_HAS_NO_FILESYSTEM= _LIBCPP_HAS_NO_THREADS= _LIBCPP_HAS_NO_MONOTONIC_CLOCK= _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_NO_VENDOR_AVAILABILITY_ANNOTATIONS=1 _LIBCPP_NO_VCRUNTIME= _LIBCPP_TYPEINFO_COMPARISON_IMPLEMENTATION= _LIBCPP_HAS_NO_RANDOM_DEVICE= _LIBCPP_HAS_NO_LOCALIZATION= _LIBCPP_HAS_NO_WIDE_CHARACTERS= _LIBCPP_HAS_NO_STD_MODULES= _LIBCPP_INSTRUMENTED_WITH_ASAN= _LIBCPP_ABI_DEFINES= _LIBCPP_HARDENING_MODE_DEFAULT=_LIBCPP_HARDENING_MODE_NONE _LIBCPP_PSTL_CPU_BACKEND_LIBDISPATCH= _LIBCPP_PSTL_CPU_BACKEND_SERIAL=1 _LIBCPP_PSTL_CPU_BACKEND_THREAD= _LIBCPP_ABI_VERSION= _LIBCPP_ABI_NAMESPACE=__1 _LIBCPP_HAS_NO_TIME_ZONE_DATABASE=
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 90, in main
    if not values[var]:
           ~~~~~~^^^^^
KeyError: '_LIBCPP_PSTL_BACKEND_SERIAL'
[2/2723] AR lib/libLLVMInstCombine.a
[3/2723] SOLINK obj/llvm/unittests/Passes/Plugins/DoublerPlugin.so
[4/2723] AR lib/libCommon.a
[5/2723] SOLINK obj/llvm/unittests/Analysis/InlineOrderPlugin.so
[6/2723] SOLINK obj/llvm/unittests/Analysis/InlineAdvisorPlugin.so
[7/2723] SOLINK obj/llvm/unittests/Passes/Plugins/TestPlugin.so
[8/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DwarfStringPool.o
[9/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.AIXException.o
[10/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.AddressPool.o
[11/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.ARMException.o
[12/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.AcceleratorRecordsSaver.o
[13/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGAddressAnalysis.o
[14/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.SyntheticTypeNameBuilder.o
[15/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGDumper.o
[16/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DebugHandlerBase.o
[17/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGPrinter.o
[18/2723] CXX obj/llvm/lib/LTO/LTO.UpdateCompilerUsed.o
[19/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DIE.o
[20/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DIEHash.o
[21/2723] CXX obj/llvm/lib/Passes/Passes.CodeGenPassBuilder.o
[22/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.OutputSections.o
[23/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DependencyTracker.o
[24/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DIEAttributeCloner.o
[25/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFLinker.o
[26/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFEmitterImpl.o
[27/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DbgEntityHistoryCalculator.o
[28/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.AccelTable.o
[29/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.DwarfUnit.o
[30/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFLinkerUnit.o
[31/2723] CXX obj/llvm/tools/llvm-extract/llvm-extract.llvm-extract.o
[32/2723] CXX obj/llvm/unittests/Transforms/Scalar/ScalarTests.LICMTest.o
[33/2723] CXX obj/llvm/unittests/Analysis/AnalysisTests.ReplaceWithVecLibTest.o
[34/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.StatepointLowering.o
[35/2723] CXX obj/llvm/lib/Passes/Passes.PassBuilderBindings.o
[36/2723] CXX obj/llvm/unittests/Transforms/Utils/UtilsTests.MemTransferLowering.o
[37/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFLinkerCompileUnit.o
[38/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFLinkerTypeUnit.o
[39/2723] CXX obj/llvm/unittests/Analysis/AnalysisTests.PluginInlineOrderAnalysisTest.o
[40/2723] CXX obj/llvm/unittests/Transforms/Coroutines/CoroTests.ExtraRematTest.o
[41/2723] CXX obj/llvm/unittests/IR/IRTests.PassManagerTest.o
[42/2723] CXX obj/llvm/unittests/Passes/Plugins/PluginsTests.PluginsTest.o
[43/2723] CXX obj/llvm/unittests/Analysis/AnalysisTests.FunctionPropertiesAnalysisTest.o
[44/2723] CXX obj/llvm/unittests/Analysis/AnalysisTests.PluginInlineAdvisorAnalysisTest.o
[45/2723] CXX obj/llvm/lib/DWARFLinker/Parallel/Parallel.DWARFLinkerImpl.o
[46/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGISel.o
[47/2723] CXX obj/llvm/lib/LTO/LTO.ThinLTOCodeGenerator.o
[48/2723] CXX obj/llvm/lib/Passes/Passes.StandardInstrumentations.o
[49/2723] CXX obj/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.CodeViewDebug.o
[50/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.TargetLowering.o
[51/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAG.o
[52/2723] CXX obj/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.SelectionDAGBuilder.o
[53/2723] CXX obj/llvm/lib/Passes/Passes.PassBuilderPipelines.o
[54/2723] CXX obj/llvm/unittests/IR/IRTests.PassBuilderCallbacksTest.o
[55/2723] CXX obj/llvm/unittests/Frontend/LLVMFrontendTests.OpenMPIRBuilderTest.o
[56/2723] CXX obj/llvm/lib/Passes/Passes.PassBuilder.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.