INFO:2025-11-28T23:27:28Z:root:pulling...
From https://github.com/llvm/llvm-project
 * branch                      main       -> FETCH_HEAD
   99addbf73db5..9bae84b01718  main       -> origin/main
Switched to branch 'main'
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HEAD is now at 9bae84b01718 [RegAlloc] Relax the split constrain on MBB prolog (#168259)
INFO:2025-11-28T23:27:31Z:root:syncing...
Deleted branch merge (was 99addbf73db5).
Switched to a new branch 'merge'
branch 'merge' set up to track 'origin/main'.
INFO:2025-11-28T23:27:32Z:root:building
ninja: Entering directory `out/gn'
[1/340] CXX obj/llvm/lib/CodeGen/CodeGen.RegAllocPriorityAdvisor.o
[2/340] CXX obj/llvm/lib/CodeGen/CodeGen.MLRegAllocPriorityAdvisor.o
[3/340] CXX obj/llvm/lib/CodeGen/CodeGen.RegAllocEvictionAdvisor.o
[4/340] AR lib/libLLVMAnalysis.a
[5/340] AR lib/libLLVMTarget.a
[6/340] AR lib/libLLVMSandboxIR.a
[7/340] 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_PSTL_BACKEND_LIBDISPATCH= _LIBCPP_PSTL_BACKEND_SERIAL= _LIBCPP_PSTL_BACKEND_STD_THREAD=1 _LIBCPP_ABI_NAMESPACE=__1 _LIBCPP_HAS_TIME_ZONE_DATABASE=
Traceback (most recent call last):
  File "/Users/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 122, in <module>
    sys.exit(main())
  File "/Users/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_PICOLIBC'
[8/340] CXX obj/llvm/lib/CodeGen/CodeGen.MLRegAllocEvictAdvisor.o
[9/340] CXX obj/clang/tools/clang-sycl-linker/clang-sycl-linker.ClangSYCLLinker.o
[10/340] CXX obj/llvm/lib/CodeGen/CodeGen.RegAllocGreedy.o
[11/340] CXX obj/clang/tools/clang-nvlink-wrapper/clang-nvlink-wrapper.ClangNVLinkWrapper.o
[12/340] CXX obj/llvm/lib/CodeGen/CodeGen.SplitKit.o
[13/340] CXX obj/llvm/lib/CodeGen/CodeGen.InlineSpiller.o
[14/340] CXX obj/clang/tools/clang-linker-wrapper/clang-linker-wrapper.ClangLinkerWrapper.o
[15/340] CXX obj/clang/lib/CodeGen/CodeGen.CodeGenAction.o
[16/340] CXX obj/clang/lib/CodeGen/CodeGen.BackendUtil.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.