INFO:2026-01-15T19:15:28Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   fa3ef64011de..5546ce99d859  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 5546ce99d859 [AMDGPU] Allow 16-bit imm folding in real true16 (#173318)
INFO:2026-01-15T19:15:31Z:root:syncing...
Deleted branch merge (was fa3ef64011de).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T19:15:32Z:root:building
ninja: Entering directory `out/gn'
[1/6712] 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'
[2/6712] LINK obj/llvm/unittests/ProfileData/ProfileDataTests
[3/6712] CXX obj/llvm/unittests/Support/SupportTests.ModRefTest.o
[4/6712] CXX obj/llvm/unittests/Support/SupportTests.TypeNameTest.o
[5/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.RISCVTargetParserTest.o
[6/6712] CXX obj/llvm/unittests/Support/SupportTests.TypeTraitsTest.o
[7/6712] CXX obj/llvm/unittests/Support/SupportTests.WithColorTest.o
[8/6712] CXX obj/llvm/unittests/Support/SupportTests.SHA256.o
[9/6712] CXX obj/llvm/unittests/Support/SupportTests.TypeSizeTest.o
[10/6712] CXX obj/llvm/unittests/Support/SupportTests.buffer_ostream_test.o
[11/6712] CXX obj/llvm/unittests/Support/SupportTests.RecyclerTest.o
[12/6712] CXX obj/llvm/unittests/Support/SupportTests.xxhashTest.o
[13/6712] CXX obj/llvm/unittests/Support/SupportTests.TimeProfilerTest.o
[14/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_sha1_ostream_test.o
[15/6712] CXX obj/llvm/unittests/Support/SupportTests.OptimizedStructLayoutTest.o
[16/6712] CXX obj/llvm/unittests/Support/SupportTests.TimerTest.o
[17/6712] CXX obj/llvm/unittests/Support/SupportTests.TextEncodingTest.o
[18/6712] CXX obj/llvm/unittests/Support/SupportTests.UTCTimeTest.o
[19/6712] CXX obj/llvm/unittests/Support/SupportTests.ToolOutputFileTest.o
[20/6712] CXX obj/llvm/unittests/Support/SupportTests.formatted_raw_ostream_test.o
[21/6712] CXX obj/llvm/unittests/Support/SupportTests.VersionTupleTest.o
[22/6712] CXX obj/llvm/unittests/Support/SupportTests.ProcessTest.o
[23/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_fd_stream_test.o
[24/6712] CXX obj/llvm/unittests/Support/SupportTests.ReverseIterationTest.o
[25/6712] CXX obj/llvm/unittests/Support/SupportTests.Threading.o
[26/6712] CXX obj/llvm/unittests/Support/SupportTests.SipHashTest.o
[27/6712] CXX obj/llvm/unittests/Support/SupportTests.NativeFormatTests.o
[28/6712] CXX obj/llvm/unittests/Support/SupportTests.SignalsTest.o
[29/6712] CXX obj/llvm/unittests/Support/SupportTests.SwapByteOrderTest.o
[30/6712] CXX obj/llvm/unittests/Support/SupportTests.TrailingObjectsTest.o
[31/6712] CXX obj/llvm/unittests/Support/SupportTests.RISCVAttributeParserTest.o
[32/6712] CXX obj/llvm/unittests/Support/SupportTests.VirtualOutputConfigTest.o
[33/6712] CXX obj/llvm/unittests/Support/SupportTests.RegexTest.o
[34/6712] CXX obj/llvm/unittests/Support/SupportTests.ProgramStackTest.o
[35/6712] CXX obj/llvm/unittests/Support/SupportTests.ReplaceFileTest.o
[36/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_pwrite_stream_test.o
[37/6712] CXX obj/llvm/unittests/Support/SupportTests.PerThreadBumpPtrAllocatorTest.o
[38/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_ostream_proxy_test.o
[39/6712] CXX obj/llvm/unittests/Support/SupportTests.ThreadSafeAllocatorTest.o
[40/6712] CXX obj/llvm/unittests/Support/SupportTests.SuffixTreeTest.o
[41/6712] CXX obj/llvm/unittests/Support/SupportTests.TarWriterTest.o
[42/6712] CXX obj/llvm/unittests/Support/SupportTests.YAMLParserTest.o
[43/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.Host.o
[44/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_socket_stream_test.o
[45/6712] CXX obj/llvm/unittests/Support/SupportTests.ProgramTest.o
[46/6712] CXX obj/llvm/unittests/Support/SupportTests.ParallelTest.o
[47/6712] CXX obj/llvm/unittests/Support/SupportTests.SourceMgrTest.o
[48/6712] CXX obj/llvm/unittests/Support/SupportTests.VirtualOutputBackendTest.o
[49/6712] CXX obj/llvm/unittests/Support/SupportTests.MemoryTest.o
[50/6712] CXX obj/llvm/unittests/Support/SupportTests.UnicodeTest.o
[51/6712] CXX obj/llvm/unittests/Support/SupportTests.MemoryBufferTest.o
[52/6712] CXX obj/llvm/unittests/Support/SupportTests.ScopedPrinterTest.o
[53/6712] CXX obj/llvm/unittests/Support/SupportTests.SpecialCaseListTest.o
[54/6712] CXX obj/llvm/unittests/Support/SupportTests.ScaledNumberTest.o
[55/6712] CXX obj/llvm/unittests/Support/SupportTests.VirtualOutputFileTest.o
[56/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.CSKYTargetParserTest.o
[57/6712] CXX obj/llvm/unittests/Support/SupportTests.raw_ostream_test.o
[58/6712] CXX obj/llvm/unittests/Support/SupportTests.ThreadPool.o
[59/6712] CXX obj/llvm/unittests/Support/SupportTests.VirtualOutputBackendsTest.o
[60/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.RISCVISAInfoTest.o
[61/6712] CXX obj/llvm/unittests/Support/SupportTests.MustacheTest.o
[62/6712] CXX obj/llvm/unittests/Support/SupportTests.Path.o
[63/6712] CXX obj/llvm/unittests/Support/SupportTests.YAMLIOTest.o
[64/6712] CXX obj/llvm/unittests/Support/SupportTests.VirtualFileSystemTest.o
[65/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.TargetParserTest.o
[66/6712] CXX obj/llvm/unittests/TargetParser/TargetParserTests.TripleTest.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.