INFO:2026-01-15T17:26:05Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   1d4f9ac37c04..d5a567870a1b  main       -> origin/main
Switched to branch 'main'
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HEAD is now at d5a567870a1b [X86] SimplifyDemandedVectorEltsForTargetNode - reduce instruction size if upper half of X86ISD::PCLMULQDQ isn't demanded (#176199)
INFO:2026-01-15T17:26:08Z:root:syncing...
Deleted branch merge (was 1d4f9ac37c04).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T17:26:08Z:root:building
ninja: Entering directory `out/gn'
[1/7665] 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'
[2/7665] CXX obj/lldb/source/Utility/Utility.Connection.o
[3/7665] CXX obj/lldb/source/Utility/Utility.Baton.o
[4/7665] CXX obj/lldb/source/Utility/Utility.VASprintf.o
[5/7665] CXX obj/lldb/source/Utility/Utility.Checksum.o
[6/7665] CXX obj/lldb/source/Utility/Utility.UriParser.o
[7/7665] CXX obj/lldb/utils/lit-cpuid/lit-cpuid.lit-cpuid.o
[8/7665] CXX obj/lldb/source/Utility/Utility.State.o
[9/7665] CXX obj/lldb/source/Utility/Utility.DataBufferHeap.o
[10/7665] CXX obj/lldb/source/Utility/Utility.DataEncoder.o
[11/7665] CXX obj/lldb/source/Utility/Utility.DataBufferLLVM.o
[12/7665] CXX obj/lldb/source/Utility/Utility.UserID.o
[13/7665] CXX obj/lldb/source/Utility/Utility.UnimplementedError.o
[14/7665] CXX obj/lldb/source/Utility/Utility.StreamString.o
[15/7665] CXX obj/lldb/source/Utility/Utility.IOObject.o
[16/7665] CXX obj/lldb/source/Utility/Utility.NameMatches.o
[17/7665] CXX obj/lldb/source/Utility/Utility.RegularExpression.o
[18/7665] CXX obj/lldb/source/Utility/Utility.VMRange.o
[19/7665] CXX obj/lldb/source/Utility/Utility.UserIDResolver.o
[20/7665] CXX obj/llvm/lib/BinaryFormat/BinaryFormat.Magic.o
[21/7665] CXX obj/lldb/source/Utility/Utility.StringExtractor.o
[22/7665] CXX obj/lldb/source/Utility/Utility.LLDBAssert.o
[23/7665] CXX obj/lldb/source/Utility/Utility.ConstString.o
[24/7665] CXX obj/lldb/source/Utility/Utility.Stream.o
[25/7665] CXX obj/llvm/lib/BinaryFormat/BinaryFormat.MachO.o
[26/7665] CXX obj/lldb/source/Utility/Utility.TildeExpressionResolver.o
[27/7665] CXX obj/lldb/source/Utility/Utility.LLDBLog.o
[28/7665] CXX obj/lldb/source/Utility/Utility.Timer.o
[29/7665] CXX obj/lldb/source/Utility/Utility.CompletionRequest.o
[30/7665] CXX obj/lldb/source/Utility/Utility.UUID.o
[31/7665] CXX obj/lldb/source/Utility/Utility.GDBRemote.o
[32/7665] CXX obj/lldb/source/Utility/Utility.XcodeSDK.o
[33/7665] CXX obj/lldb/source/Utility/Utility.ZipFile.o
[34/7665] CXX obj/lldb/source/Utility/Utility.StringList.o
[35/7665] CXX obj/lldb/source/Utility/Utility.StringExtractorGDBRemote.o
[36/7665] CXX obj/lldb/source/Utility/Utility.VirtualDataExtractor.o
[37/7665] CXX obj/lldb/source/Utility/Utility.ArchSpec.o
[38/7665] CXX obj/llvm/lib/BinaryFormat/BinaryFormat.MsgPackDocument.o
[39/7665] CXX obj/llvm/lib/BinaryFormat/BinaryFormat.ELF.o
[40/7665] CXX obj/lldb/source/Utility/Utility.SelectHelper.o
[41/7665] CXX obj/lldb/source/Utility/Utility.Instrumentation.o
[42/7665] CXX obj/lldb/source/Utility/Utility.TraceIntelPTGDBRemotePackets.o
[43/7665] CXX obj/lldb/source/Utility/Utility.Log.o
[44/7665] CXX obj/lldb/source/Utility/Utility.RealpathPrefixes.o
[45/7665] CXX obj/lldb/source/Utility/Utility.ProcessInfo.o
[46/7665] CXX obj/lldb/source/Utility/Utility.RegisterValue.o
[47/7665] CXX obj/lldb/source/Utility/Utility.Status.o
[48/7665] CXX obj/lldb/source/Utility/Utility.Args.o
[49/7665] CXX obj/lldb/source/Utility/Utility.Scalar.o
[50/7665] CXX obj/lldb/source/Utility/Utility.TraceGDBRemotePackets.o
[51/7665] CXX obj/lldb/source/Utility/Utility.Listener.o
[52/7665] CXX obj/lldb/source/Utility/Utility.Broadcaster.o
[53/7665] CXX obj/lldb/source/Utility/Utility.StructuredData.o
[54/7665] CXX obj/llvm/lib/BinaryFormat/BinaryFormat.Dwarf.o
[55/7665] CXX obj/lldb/source/ValueObject/ValueObject.DILAST.o
[56/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectUpdater.o
[57/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectMemory.o
[58/7665] CXX obj/lldb/source/ValueObject/ValueObject.DILLexer.o
[59/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectSynthetic.o
[60/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectRegister.o
[61/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectVariable.o
[62/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectVTable.o
[63/7665] CXX obj/lldb/source/ValueObject/ValueObject.DILEval.o
[64/7665] CXX obj/lldb/source/ValueObject/ValueObject.DILParser.o
[65/7665] CXX obj/lldb/source/ValueObject/ValueObject.ValueObject.o
[66/7665] CXX obj/llvm/tools/llvm-pdbutil/llvm-pdbutil.llvm-pdbutil.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.