INFO:2026-03-25T18:14:56Z:root:pulling...
From github.com:llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   f3b82a10ac20..89484e71bea6  main       -> origin/main
Switched to branch 'main'
Your branch is behind 'origin/main' by 1 commit, and can be fast-forwarded.
  (use "git pull" to update your local branch)
HEAD is now at 89484e71bea6 [MLIR] convert ConvertToLLVMPatternInterface to ods (#188354)
INFO:2026-03-25T18:14:59Z:root:syncing...
Deleted branch merge (was f3b82a10ac20).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2026-03-25T18:14:59Z:root:building
ninja: Entering directory `out/gn'
[1/479] AR lib/libLLVMAArch64CodeGen.a
[2/479] 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_INSTRUMENTED_WITH_ASAN= _LIBCPP_ABI_DEFINES= _LIBCPP_HARDENING_MODE_DEFAULT=_LIBCPP_HARDENING_MODE_NONE _LIBCPP_LIBC_PICOLIBC= _LIBCPP_LIBC_NEWLIB= _LIBCPP_LIBC_LLVM_LIBC= _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_HAS_THREAD_API_C11'
[3/479] LINK obj/llvm/unittests/CGData/CodeGenDataTests
[4/479] LINK ./bin/llvm-cxxmap
[5/479] LINK ./bin/llvm-cxxdump
[6/479] LINK ./bin/llvm-libtool-darwin
[7/479] LINK ./bin/llvm-ml
[8/479] LINK ./bin/llvm-mc
[9/479] LINK obj/llvm/unittests/ExecutionEngine/JITLink/JITLinkTests
[10/479] LINK ./bin/llvm-lipo
[11/479] LINK obj/llvm/unittests/DebugInfo/GSYM/DebugInfoGSYMTests
[12/479] LINK obj/llvm/unittests/MC/MCTests
[13/479] LINK ./bin/llvm-ar
[14/479] LINK ./bin/llvm-xray
[15/479] LINK ./bin/llvm-rtdyld
[16/479] LINK ./bin/llvm-jitlink
[17/479] LINK ./bin/llvm-bolt
[18/479] LINK ./bin/llvm-exegesis
[19/479] LINK ./bin/llvm-bolt-heatmap
[20/479] LINK obj/llvm/unittests/tools/llvm-exegesis/AArch64/LLVMExegesisAArch64Tests
[21/479] LINK obj/llvm/unittests/Target/AArch64/AArch64Tests
[22/479] LINK obj/bolt/unittests/Passes/PassTests
[23/479] LINK obj/llvm/unittests/Target/TargetMachineCTests
[24/479] LINK obj/bolt/unittests/Core/CoreTests
[25/479] LINK obj/llvm/unittests/DebugInfo/LogicalView/DebugInfoLogicalViewTests
[26/479] LINK obj/llvm/unittests/CodeGen/GlobalISel/GlobalISelTests
[27/479] LINK ./bin/llvm-split
[28/479] LINK ./bin/llvm-opt-fuzzer
[29/479] LINK ./bin/llvm-lto2
[30/479] LINK ./bin/clang-sycl-linker
[31/479] LINK obj/clang/unittests/Tooling/Syntax/SyntaxTests
[32/479] LINK ./bin/lld
[33/479] SOLINK ./lib/libLTO.so
[34/479] LINK ./bin/llc
[35/479] LINK obj/llvm/unittests/MI/MITests
[36/479] LINK ./bin/llvm-isel-fuzzer
[37/479] LINK ./bin/llvm-dwarfutil
[38/479] LINK ./bin/llvm-gsymutil
[39/479] LINK ./bin/clang-linker-wrapper
[40/479] LINK obj/clang/unittests/CrossTU/CrossTUTests
[41/479] LINK ./bin/llvm-ir2vec
[42/479] LINK obj/llvm/unittests/Passes/PassBuilderBindings/PassesBindingsTests
[43/479] LINK obj/clang/unittests/Driver/ClangDriverTests
[44/479] LINK obj/lld/unittests/AsLibELF/LLDAsLibELFTests
[45/479] LINK obj/llvm/unittests/CodeGen/CodeGenTests
[46/479] LINK ./bin/llvm-lto
[47/479] LINK ./bin/dsymutil
[48/479] LINK obj/llvm/unittests/MIR/MIRTests
[49/479] LINK ./bin/llvm-c-test
[50/479] LINK obj/lld/unittests/AsLibAll/LLDAsLibAllTests
[51/479] LINK ./bin/llvm-reduce
[52/479] LINK ./bin/clang-scan-deps
[53/479] LINK ./bin/clang-nvlink-wrapper
[54/479] LINK obj/llvm/unittests/DebugInfo/DWARF/DebugInfoDWARFTests
[55/479] LINK ./bin/opt
[56/479] LINK obj/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[57/479] LINK ./bin/llvm-dwp
[58/479] LINK ./bin/lldb
[59/479] LINK ./bin/clang-check
[60/479] LINK obj/clang/unittests/Tooling/ToolingTests
[61/479] LINK obj/clang/unittests/Interpreter/ClangReplInterpreterTests
[62/479] LINK ./bin/lldb-dap
[63/479] LINK ./bin/clang-repl
[64/479] SOLINK ./lib/libclang.so
[65/479] LINK ./bin/lldb-test
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.