ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2439] AR lib/libLLVMBPFDesc.a
[2/2439] 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'
[3/2439] ACTION //lldb/source/Commands:CommandOptions(//llvm/utils/gn/build/toolchain:unix)
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[17/2439] ACTION //llvm/lib/Target/Lanai/MCTargetDesc:LanaiGenInstrInfo(//llvm/utils/gn/build/toolchain:unix)
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[20/2426] ACTION //llvm/lib/Target/LoongArch:LoongArchGenDAGISel(//llvm/utils/gn/build/toolchain:unix)
[21/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonMachineFunctionInfo.o
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[29/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonQFPOptimizer.o
[30/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonTfrCleanup.o
[31/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonPeephole.o
[32/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonHardwareLoops.o
[33/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonVectorPrint.o
[34/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonGenPredicate.o
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[47/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonHazardRecognizer.o
[48/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonVLIWPacketizer.o
[49/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonMCInstLower.o
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[57/2426] CXX obj/llvm/lib/Target/Hexagon/LLVMHexagonCodeGen.HexagonLoopIdiomRecognition.o
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ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.