INFO:2026-01-15T16:44:37Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   0cdaa8f61202..e3560f29e6d7  main       -> origin/main
Switched to branch 'main'
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HEAD is now at e3560f29e6d7 [NewPM] Port x86-seses to new pass manager (#176096)
INFO:2026-01-15T16:44:40Z:root:syncing...
Deleted branch merge (was 0cdaa8f61202).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-01-15T16:44:40Z:root:building
ninja: Entering directory `out/gn'
[1/8183] AR lib/libLLVMDebugInfoCodeView.a
[2/8183] AR lib/libLLVMNVPTXInfo.a
[3/8183] AR lib/libLLVMPowerPCInfo.a
[4/8183] AR lib/libLLVMRISCVInfo.a
[5/8183] AR lib/libLLVMSparcInfo.a
[6/8183] AR lib/libLLVMSystemZInfo.a
[7/8183] AR lib/libLLVMX86Info.a
[8/8183] AR lib/libLLVMWindowsManifest.a
[9/8183] AR lib/libLLVMTestingAnnotations.a
[10/8183] AR lib/libLLVMTelemetry.a
[11/8183] AR lib/libgtest.a
[12/8183] AR lib/libLLVMTestingSupport.a
[13/8183] ACTION //clang-tools-extra/clang-tidy/misc:Confusables.inc(//llvm/utils/gn/build/toolchain:unix)
[14/8183] 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'
[15/8183] AR lib/libgtest_main.a
[16/8183] LINK ./bin/split-file
[17/8183] LINK ./bin/yaml-bench
[18/8183] LINK ./bin/FileCheck
[19/8183] LINK ./bin/not
[20/8183] LINK ./bin/lldb-tblgen
[21/8183] LINK ./bin/llvm-min-tblgen
[22/8183] LINK ./bin/clang-tblgen
[23/8183] LINK obj/llvm/unittests/LineEditor/LineEditorTests
[24/8183] LINK obj/llvm/unittests/Testing/ADT/TestingADTTests
[25/8183] LINK obj/llvm/unittests/Bitstream/BitstreamTests
[26/8183] LINK obj/llvm/unittests/Demangle/DemangleTests
[27/8183] LINK obj/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTests
[28/8183] LINK obj/llvm/unittests/Support/LSP/LSPTests
[29/8183] LINK obj/llvm/unittests/Testing/Support/TestingSupportTests
[30/8183] LINK obj/llvm/unittests/DebugInfo/MSF/DebugInfoMSFTests
[31/8183] LINK obj/llvm/unittests/CAS/CASTests
[32/8183] LINK obj/llvm/unittests/FileCheck/FileCheckTests
[33/8183] LINK obj/llvm/unittests/DebugInfo/CodeView/DebugInfoCodeViewTests
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.