ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/3093] ACTION //llvm/tools/llvm-objcopy:llvm-strip(//llvm/utils/gn/build/toolchain:unix)
[2/3093] ACTION //lldb/include/lldb/Host:Config(//llvm/utils/gn/build/toolchain:unix)
[3/3093] 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_C11= _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 126, 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 76, in main
    in_line = var_re.sub(repl, in_line)
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 74, in repl
    return values[key]
           ~~~~~~^^^^^
KeyError: '_LIBCPP_ABI_NAMESPACE_LEN'
[4/3093] CXX obj/llvm/unittests/Frontend/LLVMFrontendTests.OpenMPParsingTest.o
[5/3093] CXX obj/llvm/unittests/Frontend/LLVMFrontendTests.OpenMPDirectiveNameTest.o
[6/3093] CXX obj/llvm/unittests/Frontend/LLVMFrontendTests.OpenMPDirectiveNameParserTest.o
[7/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LFIRewritePass.o
[8/3093] CXX obj/llvm/lib/Target/Lanai/LLVMLanaiCodeGen.LanaiMCInstLower.o
[9/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86MacroFusion.o
[10/3093] CXX obj/llvm/tools/llvm-mc/llvm-mc.llvm-mc.o
[11/3093] CXX obj/llvm/tools/llvm-link/llvm-link.llvm-link.o
[12/3093] CXX obj/llvm/lib/Target/Lanai/LLVMLanaiCodeGen.LanaiMemAluCombiner.o
[13/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86InsertX87Wait.o
[14/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86SelectionDAGInfo.o
[15/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LoadValueInjectionRetHardening.o
[16/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86SpeculativeExecutionSideEffectSuppression.o
[17/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86InsertVZeroUpper.o
[18/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86SuppressAPXForReloc.o
[19/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86WinEHUnwindV3.o
[20/3093] CXX obj/llvm/unittests/DWARFLinkerParallel/DWARFLinkerParallelTests.DIEInfoPlacementTest.o
[21/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86WinEHUnwindV2.o
[22/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86PadShortFunction.o
[23/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86InterleavedAccess.o
[24/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86IndirectThunks.o
[25/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86ReturnThunks.o
[26/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LowerTileCopy.o
[27/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86WinEHState.o
[28/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86TileConfig.o
[29/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LowerAMXType.o
[30/3093] CXX obj/llvm/unittests/CodeGen/CodeGenTests.CCStateTest.o
[31/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86PartialReduction.o
[32/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86OptimizeLEAs.o
[33/3093] CXX obj/llvm/tools/llvm-opt-fuzzer/llvm-opt-fuzzer.llvm-opt-fuzzer.o
[34/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86Subtarget.o
[35/3093] CXX obj/lld/wasm/wasm.InputChunks.o
[36/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86RegisterInfo.o
[37/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LoadValueInjectionLoadHardening.o
[38/3093] CXX obj/lld/wasm/wasm.MarkLive.o
[39/3093] CXX obj/lld/wasm/wasm.OutputSegment.o
[40/3093] CXX obj/lld/wasm/wasm.OutputSections.o
[41/3093] CXX obj/lld/wasm/wasm.Symbols.o
[42/3093] CXX obj/lld/wasm/wasm.Relocations.o
[43/3093] CXX obj/lld/wasm/wasm.MapFile.o
[44/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86PreTileConfig.o
[45/3093] CXX obj/llvm/tools/opt/lib.optdriver.o
[46/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86SpeculativeLoadHardening.o
[47/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86LowerAMXIntrinsics.o
[48/3093] CXX obj/llvm/unittests/CodeGen/CodeGenTests.AsmPrinterDwarfTest.o
[49/3093] CXX obj/lld/wasm/wasm.LTO.o
[50/3093] CXX obj/lld/ELF/ELF.LTO.o
[51/3093] CXX obj/lld/wasm/wasm.SymbolTable.o
[52/3093] CXX obj/lld/wasm/wasm.SyntheticSections.o
[53/3093] CXX obj/lld/MachO/MachO.DriverUtils.o
[54/3093] CXX obj/lld/wasm/wasm.InputFiles.o
[55/3093] CXX obj/lld/MachO/MachO.LTO.o
[56/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86InstCombineIntrinsic.o
[57/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86MCInstLower.o
[58/3093] CXX obj/lld/wasm/wasm.Driver.o
[59/3093] CXX obj/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/MacOSX-DYLD.DynamicLoaderMacOS.o
[60/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86TargetMachine.o
[61/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86InstrInfo.o
[62/3093] CXX obj/lld/COFF/COFF.InputFiles.o
[63/3093] CXX obj/lld/wasm/wasm.Writer.o
[64/3093] CXX obj/lld/MachO/MachO.InputFiles.o
[65/3093] CXX obj/llvm/lib/Target/X86/LLVMX86CodeGen.X86TargetTransformInfo.o
[66/3093] CXX obj/lld/MachO/MachO.Driver.o
[67/3093] CXX obj/lld/ELF/ELF.InputFiles.o
[68/3093] CXX obj/llvm/unittests/Frontend/LLVMFrontendTests.OpenMPIRBuilderTest.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.