INFO:2026-01-15T17:54:56Z:root:pulling...
From github.com:llvm/llvm-project
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   5dccab027292..b29ee6ed4bd8  main       -> origin/main
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HEAD is now at b29ee6ed4bd8 InstCombine: Fix SimplifyDemandedFPClass for fadd with known-inf source  (#176204)
INFO:2026-01-15T17:54:59Z:root:syncing...
Deleted branch merge (was 5dccab027292).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T17:54:59Z:root:building
ninja: Entering directory `out/gn'
[1/7273] 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'
[2/7273] CXX obj/llvm/lib/MC/MC.MCLabel.o
[3/7273] CXX obj/llvm/lib/MC/MCDisassembler/MCDisassembler.MCSymbolizer.o
[4/7273] CXX obj/llvm/lib/MC/MC.MCWinEH.o
[5/7273] CXX obj/llvm/lib/MC/MC.MCTargetOptions.o
[6/7273] CXX obj/llvm/lib/MC/MC.MCInstrInfo.o
[7/7273] CXX obj/llvm/lib/MC/MC.MCValue.o
[8/7273] CXX obj/llvm/lib/MC/MC.MCSymbolGOFF.o
[9/7273] CXX obj/llvm/lib/MC/MC.MCSchedule.o
[10/7273] CXX obj/llvm/lib/MC/MC.MCSymbolXCOFF.o
[11/7273] CXX obj/llvm/lib/MC/MCDisassembler/MCDisassembler.MCDisassembler.o
[12/7273] CXX obj/llvm/lib/MC/MC.MCInstrAnalysis.o
[13/7273] CXX obj/llvm/lib/MC/MC.MCSymbolELF.o
[14/7273] CXX obj/llvm/lib/MC/MC.MCInstrDesc.o
[15/7273] CXX obj/llvm/lib/MC/MCDisassembler/MCDisassembler.MCRelocationInfo.o
[16/7273] CXX obj/llvm/lib/MC/MC.MCELFObjectTargetWriter.o
[17/7273] CXX obj/llvm/lib/MC/MC.MCXCOFFObjectTargetWriter.o
[18/7273] CXX obj/llvm/lib/MC/MC.MCWasmObjectTargetWriter.o
[19/7273] CXX obj/llvm/lib/MC/MC.MCMachObjectTargetWriter.o
[20/7273] CXX obj/llvm/lib/MC/MC.MCLinkerOptimizationHint.o
[21/7273] CXX obj/llvm/lib/MC/MC.MCRegisterInfo.o
[22/7273] CXX obj/llvm/lib/MC/MC.MCInstPrinter.o
[23/7273] CXX obj/llvm/lib/MC/MC.MCSectionMachO.o
[24/7273] CXX obj/llvm/lib/MC/MCParser/MCParser.AsmLexer.o
[25/7273] CXX obj/llvm/lib/MC/MC.MCSubtargetInfo.o
[26/7273] CXX obj/llvm/lib/MC/MC.MCTargetOptionsCommandFlags.o
[27/7273] CXX obj/llvm/lib/MC/MC.StringTableBuilder.o
[28/7273] CXX obj/llvm/lib/ObjCopy/ObjCopy.ConfigManager.o
[29/7273] CXX obj/llvm/lib/ObjCopy/ObjCopy.CommonConfig.o
[30/7273] CXX obj/llvm/lib/MC/MC.MCNullStreamer.o
[31/7273] CXX obj/llvm/lib/MC/MC.MCDXContainerStreamer.o
[32/7273] CXX obj/llvm/lib/MC/MC.MCObjectWriter.o
[33/7273] CXX obj/llvm/lib/MC/MCDisassembler/MCDisassembler.MCExternalSymbolizer.o
[34/7273] CXX obj/llvm/lib/MC/MC.MCXCOFFStreamer.o
[35/7273] CXX obj/llvm/lib/ObjCopy/COFF/ObjCopy.COFFReader.o
[36/7273] CXX obj/llvm/lib/MC/MC.MCWasmStreamer.o
[37/7273] CXX obj/llvm/lib/MC/MC.MCInst.o
[38/7273] CXX obj/llvm/lib/ObjCopy/COFF/ObjCopy.COFFWriter.o
[39/7273] CXX obj/llvm/lib/MC/MC.MCSPIRVStreamer.o
[40/7273] CXX obj/llvm/lib/MC/MC.MCSection.o
[41/7273] CXX obj/llvm/lib/MC/MC.MCSymbol.o
[42/7273] CXX obj/llvm/lib/MC/MC.MCFragment.o
[43/7273] CXX obj/llvm/lib/MC/MC.MCDXContainerWriter.o
[44/7273] CXX obj/llvm/lib/MC/MC.SPIRVObjectWriter.o
[45/7273] CXX obj/llvm/lib/ObjCopy/COFF/ObjCopy.COFFObject.o
[46/7273] CXX obj/llvm/lib/MC/MC.TargetRegistry.o
[47/7273] CXX obj/llvm/lib/MC/MC.MCObjectFileInfo.o
[48/7273] CXX obj/llvm/lib/MC/MC.MCExpr.o
[49/7273] CXX obj/llvm/lib/MC/MCParser/MCParser.COFFAsmParser.o
[50/7273] CXX obj/llvm/lib/MC/MCDisassembler/MCDisassembler.Disassembler.o
[51/7273] CXX obj/llvm/lib/MC/MC.MCGOFFStreamer.o
[52/7273] CXX obj/llvm/lib/MC/MCParser/MCParser.COFFMasmParser.o
[53/7273] CXX obj/llvm/lib/MC/MC.MCWinCOFFStreamer.o
[54/7273] CXX obj/llvm/lib/MC/MC.MCSFrame.o
[55/7273] CXX obj/llvm/lib/MC/MC.MCELFStreamer.o
[56/7273] CXX obj/llvm/lib/MC/MC.MCMachOStreamer.o
[57/7273] CXX obj/llvm/lib/MC/MC.MCObjectStreamer.o
[58/7273] CXX obj/llvm/lib/MC/MC.MachObjectWriter.o
[59/7273] CXX obj/llvm/lib/MC/MC.XCOFFObjectWriter.o
[60/7273] CXX obj/llvm/lib/MC/MC.WinCOFFObjectWriter.o
[61/7273] CXX obj/llvm/lib/MC/MC.MCDwarf.o
[62/7273] CXX obj/llvm/lib/MC/MC.MCWin64EH.o
[63/7273] CXX obj/llvm/lib/MC/MC.MCStreamer.o
[64/7273] CXX obj/llvm/lib/MC/MC.MCPseudoProbe.o
[65/7273] CXX obj/llvm/lib/MC/MC.WasmObjectWriter.o
[66/7273] CXX obj/llvm/lib/MC/MCParser/MCParser.AsmParser.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.