INFO:2026-01-15T18:00:27Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   b29ee6ed4bd8..a72958a95dcb  main       -> origin/main
Switched to branch 'main'
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HEAD is now at a72958a95dcb [AArch64] Use a load instead of a store for inline stack probes (#170855)
INFO:2026-01-15T18:00:29Z:root:syncing...
Deleted branch merge (was b29ee6ed4bd8).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T18:00:30Z:root:building
ninja: Entering directory `out/gn'
[1/7208] 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'
[2/7208] CXX obj/llvm/lib/Object/Object.WindowsMachineFlag.o
[3/7208] CXX obj/llvm/lib/Object/Object.FaultMapParser.o
[4/7208] CXX obj/llvm/lib/Object/Object.Error.o
[5/7208] CXX obj/llvm/lib/Object/Object.Decompressor.o
[6/7208] CXX obj/llvm/lib/ObjCopy/DXContainer/ObjCopy.DXContainerObject.o
[7/7208] CXX obj/llvm/lib/ObjCopy/XCOFF/ObjCopy.XCOFFWriter.o
[8/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.ArchiveEmitter.o
[9/7208] CXX obj/llvm/lib/ObjCopy/DXContainer/ObjCopy.DXContainerWriter.o
[10/7208] CXX obj/llvm/lib/ObjCopy/XCOFF/ObjCopy.XCOFFReader.o
[11/7208] CXX obj/llvm/lib/ObjCopy/wasm/ObjCopy.WasmReader.o
[12/7208] CXX obj/llvm/lib/ObjCopy/DXContainer/ObjCopy.DXContainerReader.o
[13/7208] CXX obj/llvm/lib/ObjCopy/wasm/ObjCopy.WasmObject.o
[14/7208] CXX obj/llvm/lib/ObjCopy/wasm/ObjCopy.WasmWriter.o
[15/7208] CXX obj/llvm/lib/Object/Object.Object.o
[16/7208] CXX obj/llvm/lib/Object/Object.COFFModuleDefinition.o
[17/7208] CXX obj/llvm/lib/Object/Object.TapiFile.o
[18/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.ArchiveYAML.o
[19/7208] CXX obj/llvm/lib/ObjCopy/XCOFF/ObjCopy.XCOFFObjcopy.o
[20/7208] CXX obj/llvm/lib/Object/Object.SymbolicFile.o
[21/7208] CXX obj/llvm/lib/Object/Object.TapiUniversal.o
[22/7208] CXX obj/llvm/lib/Object/Object.Minidump.o
[23/7208] CXX obj/llvm/lib/ObjCopy/MachO/ObjCopy.MachOLayoutBuilder.o
[24/7208] CXX obj/llvm/lib/Object/Object.GOFFObjectFile.o
[25/7208] CXX obj/llvm/lib/ObjCopy/ObjCopy.Archive.o
[26/7208] CXX obj/llvm/lib/Object/Object.IRObjectFile.o
[27/7208] CXX obj/llvm/lib/Object/Object.MachOUniversal.o
[28/7208] CXX obj/llvm/lib/Object/Object.DXContainer.o
[29/7208] CXX obj/llvm/lib/ObjCopy/COFF/ObjCopy.COFFObjcopy.o
[30/7208] CXX obj/llvm/lib/ObjCopy/DXContainer/ObjCopy.DXContainerObjcopy.o
[31/7208] CXX obj/llvm/lib/Object/Object.COFFImportFile.o
[32/7208] CXX obj/llvm/lib/ObjCopy/wasm/ObjCopy.WasmObjcopy.o
[33/7208] CXX obj/llvm/lib/Object/Object.SFrameParser.o
[34/7208] CXX obj/llvm/lib/Object/Object.RelocationResolver.o
[35/7208] CXX obj/llvm/lib/Object/Object.ObjectFile.o
[36/7208] CXX obj/llvm/lib/Object/Object.Binary.o
[37/7208] CXX obj/llvm/lib/Object/Object.MachOUniversalWriter.o
[38/7208] CXX obj/llvm/lib/Object/Object.Archive.o
[39/7208] CXX obj/llvm/lib/ObjCopy/MachO/ObjCopy.MachOWriter.o
[40/7208] CXX obj/llvm/lib/Object/Object.SymbolSize.o
[41/7208] CXX obj/llvm/lib/ObjCopy/ObjCopy.ObjCopy.o
[42/7208] CXX obj/llvm/lib/Object/Object.XCOFFObjectFile.o
[43/7208] CXX obj/llvm/lib/Object/Object.COFFObjectFile.o
[44/7208] CXX obj/llvm/lib/ObjCopy/MachO/ObjCopy.MachOObject.o
[45/7208] CXX obj/llvm/lib/Object/Object.RecordStreamer.o
[46/7208] CXX obj/llvm/lib/ProfileData/ProfileData.GCOV.o
[47/7208] CXX obj/llvm/lib/ProfileData/ProfileData.DataAccessProf.o
[48/7208] CXX obj/llvm/lib/Object/Object.IRSymtab.o
[49/7208] CXX obj/llvm/lib/Object/Object.BuildID.o
[50/7208] CXX obj/llvm/lib/ObjCopy/MachO/ObjCopy.MachOReader.o
[51/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.COFFYAML.o
[52/7208] CXX obj/llvm/lib/Object/Object.ModuleSymbolTable.o
[53/7208] CXX obj/llvm/lib/Object/Object.WindowsResource.o
[54/7208] CXX obj/llvm/lib/Object/Object.ArchiveWriter.o
[55/7208] CXX obj/llvm/lib/Object/Object.OffloadBundle.o
[56/7208] CXX obj/llvm/lib/Object/Object.OffloadBinary.o
[57/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.COFFEmitter.o
[58/7208] CXX obj/llvm/lib/ObjCopy/MachO/ObjCopy.MachOObjcopy.o
[59/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.CodeViewYAMLDebugSections.o
[60/7208] CXX obj/llvm/lib/ObjCopy/ELF/ObjCopy.ELFObjcopy.o
[61/7208] CXX obj/llvm/lib/Object/Object.WasmObjectFile.o
[62/7208] CXX obj/llvm/lib/ObjectYAML/ObjectYAML.CodeViewYAMLSymbols.o
[63/7208] CXX obj/llvm/lib/Object/Object.MachOObjectFile.o
[64/7208] CXX obj/llvm/lib/Object/Object.ELFObjectFile.o
[65/7208] CXX obj/llvm/lib/ObjCopy/ELF/ObjCopy.ELFObject.o
[66/7208] CXX obj/llvm/lib/Object/Object.ELF.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.