ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2737] 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'
[2/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceGlobalObjects.o
[3/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceGlobalValues.o
[4/2737] CXX obj/llvm/lib/Bitcode/Reader/Reader.BitReader.o
[5/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceFunctionBodies.o
[6/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceGlobalVarInitializers.o
[7/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceDistinctMetadata.o
[8/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceFunctions.o
[9/2737] CXX obj/llvm/tools/llvm-reduce/llvm-reduce.TestRunner.o
[10/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.InjectPointerSigningFixups.o
[11/2737] CXX obj/llvm/lib/Bitcode/Writer/Writer.BitWriter.o
[12/2737] CXX obj/llvm/tools/sanstats/sanstats.sanstats.o
[13/2737] CXX obj/llvm/tools/llubi/lib/lib.Context.o
[14/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.ReduceAttributes.o
[15/2737] CXX obj/llvm/lib/Analysis/Analysis.CostModel.o
[16/2737] CXX obj/llvm/tools/llvm-sim/llvm-sim.llvm-sim.o
[17/2737] CXX obj/llvm/tools/verify-uselistorder/verify-uselistorder.verify-uselistorder.o
[18/2737] CXX obj/lldb/source/Expression/Expression.ExpressionVariable.o
[19/2737] CXX obj/lldb/source/Expression/Expression.UtilityFunction.o
[20/2737] CXX obj/llvm/tools/llubi/lib/lib.Interpreter.o
[21/2737] CXX obj/llvm/tools/llvm-reduce/deltas/llvm-reduce.Delta.o
[22/2737] CXX obj/lldb/source/Expression/Expression.ExpressionParser.o
[23/2737] CXX obj/llvm/lib/Bitcode/Reader/Reader.MetadataLoader.o
[24/2737] CXX obj/lldb/source/Expression/Expression.FunctionCaller.o
[25/2737] CXX obj/lldb/source/Expression/Expression.LLVMUserExpression.o
[26/2737] CXX obj/lld/wasm/wasm.OutputSegment.o
[27/2737] CXX obj/lldb/source/Expression/Expression.UserExpression.o
[28/2737] CXX obj/lldb/source/Expression/Expression.IRInterpreter.o
[29/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.IRDynamicChecks.o
[30/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.LexicalScopesTest.o
[31/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.PassManagerTest.o
[32/2737] CXX obj/lldb/source/Expression/Expression.IRExecutionUnit.o
[33/2737] CXX obj/lld/wasm/wasm.MarkLive.o
[34/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.MachineBasicBlockTest.o
[35/2737] CXX obj/lld/wasm/wasm.Relocations.o
[36/2737] CXX obj/lld/wasm/wasm.LTO.o
[37/2737] CXX obj/lld/wasm/wasm.OutputSections.o
[38/2737] CXX obj/llvm/tools/llvm-exegesis/lib/lib.BenchmarkResult.o
[39/2737] CXX obj/lld/wasm/wasm.InputChunks.o
[40/2737] CXX obj/lld/wasm/wasm.Symbols.o
[41/2737] CXX obj/lld/wasm/wasm.MapFile.o
[42/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.MIR2VecTest.o
[43/2737] CXX obj/lld/MachO/MachO.DriverUtils.o
[44/2737] CXX obj/lld/wasm/wasm.SymbolTable.o
[45/2737] CXX obj/lld/COFF/COFF.SymbolTable.o
[46/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.MachineDomTreeUpdaterTest.o
[47/2737] CXX obj/lld/MachO/MachO.LTO.o
[48/2737] CXX obj/llvm/tools/llvm-exegesis/lib/lib.BenchmarkRunner.o
[49/2737] CXX obj/lld/wasm/wasm.SyntheticSections.o
[50/2737] CXX obj/lld/ELF/ELF.LTO.o
[51/2737] CXX obj/lld/wasm/wasm.InputFiles.o
[52/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.ClangUtilityFunction.o
[53/2737] CXX obj/lld/wasm/wasm.Writer.o
[54/2737] CXX obj/lld/COFF/COFF.InputFiles.o
[55/2737] CXX obj/lld/MachO/MachO.Driver.o
[56/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.ClangUserExpression.o
[57/2737] CXX obj/lld/COFF/COFF.Driver.o
[58/2737] CXX obj/lld/MachO/MachO.InputFiles.o
[59/2737] CXX obj/llvm/lib/Bitcode/Writer/Writer.BitcodeWriter.o
[60/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.IRForTarget.o
[61/2737] CXX obj/llvm/unittests/CodeGen/CodeGenTests.InstrRefLDVTest.o
[62/2737] CXX obj/llvm/lib/Bitcode/Reader/Reader.BitcodeReader.o
[63/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.ClangFunctionCaller.o
[64/2737] CXX obj/lld/ELF/ELF.InputFiles.o
[65/2737] CXX obj/lldb/source/Plugins/ExpressionParser/Clang/Clang.ClangExpressionParser.o
[66/2737] CXX obj/lld/ELF/ELF.Driver.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.