INFO:2026-01-15T17:50:42Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   eb82ddc53a21..1eb52793e6f7  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 1eb52793e6f7 [X86] combineConcatVectorOps - add X86ISD::PCLMULQDQ handling for VPCLMULQDQ targets (#176203)
INFO:2026-01-15T17:50:45Z:root:syncing...
Deleted branch merge (was eb82ddc53a21).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T17:50:46Z:root:building
ninja: Entering directory `out/gn'
[1/7404] 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'
[2/7404] CXX obj/llvm/lib/Frontend/HLSL/HLSL.HLSLResource.o
[3/7404] CXX obj/llvm/lib/IR/IR.GCStrategy.o
[4/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.TargetExecutionUtils.o
[5/7404] CXX obj/llvm/lib/InterfaceStub/InterfaceStub.IFSStub.o
[6/7404] CXX obj/llvm/lib/IR/IR.BuiltinGCs.o
[7/7404] CXX obj/llvm/lib/IR/IR.DiagnosticHandler.o
[8/7404] CXX obj/llvm/lib/Frontend/OpenACC/OpenACC.ACC.o
[9/7404] CXX obj/llvm/lib/MC/MC.DXContainerRootSignature.o
[10/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.JITLoaderGDB.o
[11/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.DefaultHostBootstrapValues.o
[12/7404] CXX obj/llvm/lib/IR/IR.Comdat.o
[13/7404] CXX obj/llvm/lib/MC/MC.DXContainerPSVInfo.o
[14/7404] CXX obj/llvm/lib/Frontend/HLSL/HLSL.HLSLBinding.o
[15/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.JITLoaderVTune.o
[16/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.ExecutorResolver.o
[17/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.RTDyldMemoryManager.o
[18/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.UnwindInfoManager.o
[19/7404] CXX obj/llvm/lib/IR/IR.DiagnosticPrinter.o
[20/7404] CXX obj/llvm/lib/IR/IR.Assumptions.o
[21/7404] CXX obj/llvm/lib/IR/IR.ConstantRangeList.o
[22/7404] CXX obj/llvm/lib/MC/MC.GOFFObjectWriter.o
[23/7404] CXX obj/llvm/lib/IR/IR.ConstantFPRange.o
[24/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyld.RuntimeDyldELFMips.o
[25/7404] CXX obj/llvm/lib/IR/IR.IRPrintingPasses.o
[26/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.JITLoaderPerf.o
[27/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.ExecutorSharedMemoryMapperService.o
[28/7404] CXX obj/llvm/lib/IR/IR.EHPersonalities.o
[29/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.SimpleRemoteEPCServer.o
[30/7404] CXX obj/llvm/lib/IR/IR.DIExpressionOptimizer.o
[31/7404] CXX obj/llvm/lib/IRReader/IRReader.IRReader.o
[32/7404] CXX obj/llvm/lib/IR/IR.DebugLoc.o
[33/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.JITSymbol.o
[34/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.RuntimeDyldMachO.o
[35/7404] CXX obj/llvm/lib/IR/IR.FPEnv.o
[36/7404] CXX obj/llvm/lib/IR/IR.DroppedVariableStatsIR.o
[37/7404] CXX obj/llvm/lib/IR/IR.DataLayout.o
[38/7404] CXX obj/llvm/lib/IR/IR.CycleInfo.o
[39/7404] CXX obj/llvm/lib/IR/IR.Intrinsics.o
[40/7404] CXX obj/llvm/lib/MC/MC.ELFObjectWriter.o
[41/7404] CXX obj/llvm/lib/IR/IR.DebugProgramInstruction.o
[42/7404] CXX obj/llvm/lib/IR/IR.DroppedVariableStats.o
[43/7404] CXX obj/llvm/lib/IR/IR.ConstantFold.o
[44/7404] CXX obj/llvm/lib/IR/IR.ConstantRange.o
[45/7404] CXX obj/llvm/lib/ExecutionEngine/Orc/TargetProcess/TargetProcess.LibraryResolver.o
[46/7404] CXX obj/llvm/lib/IR/IR.Globals.o
[47/7404] CXX obj/llvm/lib/IR/IR.IntrinsicInst.o
[48/7404] CXX obj/llvm/lib/IR/IR.Function.o
[49/7404] CXX obj/llvm/lib/IR/IR.InlineAsm.o
[50/7404] CXX obj/llvm/lib/IR/IR.IRBuilder.o
[51/7404] CXX obj/llvm/lib/IR/IR.DiagnosticInfo.o
[52/7404] CXX obj/llvm/lib/IR/IR.ConvergenceVerifier.o
[53/7404] CXX obj/llvm/lib/IR/IR.BasicBlock.o
[54/7404] CXX obj/llvm/lib/IR/IR.Instruction.o
[55/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.RuntimeDyld.o
[56/7404] CXX obj/llvm/lib/IR/IR.DIBuilder.o
[57/7404] CXX obj/llvm/lib/IR/IR.Attributes.o
[58/7404] CXX obj/llvm/lib/IR/IR.Instructions.o
[59/7404] CXX obj/llvm/lib/IR/IR.DebugInfo.o
[60/7404] CXX obj/llvm/lib/IR/IR.Core.o
[61/7404] CXX obj/llvm/lib/IR/IR.AutoUpgrade.o
[62/7404] CXX obj/llvm/lib/IR/IR.Constants.o
[63/7404] CXX obj/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.RuntimeDyldELF.o
[64/7404] CXX obj/llvm/lib/IR/IR.Dominators.o
[65/7404] CXX obj/llvm/lib/IR/IR.DebugInfoMetadata.o
[66/7404] CXX obj/llvm/lib/IR/IR.AsmWriter.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.