INFO:2026-01-15T23:57:04Z:root:pulling...
From github.com:llvm/llvm-project
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   1621e007dba5..227517d11f4f  main       -> origin/main
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HEAD is now at 227517d11f4f [LLDB][NativePDB] Add PdbAstBuilder null checks (#176065)
INFO:2026-01-15T23:57:07Z:root:syncing...
Deleted branch merge (was 1621e007dba5).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T23:57:08Z:root:building
ninja: Entering directory `out/gn'
[1/4278] AR lib/libLLVMSandboxIR.a
[2/4278] 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'
[3/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ExpandImm.o
[4/4278] CXX obj/llvm/lib/Target/AArch64/MCTargetDesc/MCTargetDesc.AArch64ELFObjectWriter.o
[5/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64RedundantCondBranchPass.o
[6/4278] CXX obj/llvm/lib/Target/Target.TargetMachineC.o
[7/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64AdvSIMDScalarPass.o
[8/4278] CXX obj/llvm/lib/Target/AArch64/MCTargetDesc/MCTargetDesc.AArch64ELFStreamer.o
[9/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64RedundantCopyElimination.o
[10/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ConditionOptimizer.o
[11/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SMEAttributes.o
[12/4278] CXX obj/llvm/lib/LTO/LTO.UpdateCompilerUsed.o
[13/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PromoteConstant.o
[14/4278] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64GlobalISelUtils.o
[15/4278] CXX obj/llvm/lib/Target/Target.TargetMachine.o
[16/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ConditionalCompares.o
[17/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64Arm64ECCallLowering.o
[18/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PBQPRegAlloc.o
[19/4278] CXX obj/llvm/lib/Target/AArch64/MCTargetDesc/MCTargetDesc.AArch64AsmBackend.o
[20/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MIPeepholeOpt.o
[21/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64A53Fix835769.o
[22/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StorePairSuppress.o
[23/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64DeadRegisterDefinitionsPass.o
[24/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CondBrTuning.o
[25/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MacroFusion.o
[26/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CallingConvention.o
[27/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CleanupLocalDynamicTLSPass.o
[28/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SIMDInstrOpt.o
[29/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetObjectFile.o
[30/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MachineScheduler.o
[31/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SpeculationHardening.o
[32/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FalkorHWPFFix.o
[33/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PostCoalescerPass.o
[34/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CompressJumpTables.o
[35/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64BranchTargets.o
[36/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MachineFunctionInfo.o
[37/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StackTaggingPreRA.o
[38/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CollectLOH.o
[39/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SelectionDAGInfo.o
[40/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SRLTDefineSuperRegs.o
[41/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PointerAuth.o
[42/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SLSHardening.o
[43/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64A57FPLoadBalancing.o
[44/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64LowerHomogeneousPrologEpilog.o
[45/4278] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64CallLowering.o
[46/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ExpandPseudoInsts.o
[47/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MCInstLower.o
[48/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PrologueEpilogue.o
[49/4278] CXX obj/llvm/lib/Passes/Passes.CodeGenPassBuilder.o
[50/4278] CXX obj/llvm/lib/LTO/LTO.LTOModule.o
[51/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64RegisterInfo.o
[52/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64LoadStoreOptimizer.o
[53/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StackTagging.o
[54/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64AsmPrinter.o
[55/4278] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64LegalizerInfo.o
[56/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FrameLowering.o
[57/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FastISel.o
[58/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64Subtarget.o
[59/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetMachine.o
[60/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64InstrInfo.o
[61/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ISelDAGToDAG.o
[62/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetTransformInfo.o
[63/4278] CXX obj/llvm/lib/Target/AArch64/AsmParser/AsmParser.AArch64AsmParser.o
[64/4278] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64InstructionSelector.o
[65/4278] CXX obj/lldb/source/Plugins/SymbolFile/NativePDB/NativePDB.SymbolFileNativePDB.o
[66/4278] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ISelLowering.o
[67/4278] CXX obj/llvm/lib/Passes/Passes.PassBuilder.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.