ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/4335] 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_C11= _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_STATPART= _LIBCPP_PSTL_BACKEND_STD_THREAD=1 _LIBCPP_ABI_NAMESPACE=__1 _LIBCPP_ABI_NAMESPACE_LEN=3 _LIBCPP_HAS_TIME_ZONE_DATABASE=1
unused values args:
    _LIBCPP_PSTL_BACKEND_STATPART
    _LIBCPP_PSTL_BACKEND_STD_THREAD
    _LIBCPP_PSTL_BACKEND_LIBDISPATCH
    _LIBCPP_PSTL_BACKEND_SERIAL
[2/4335] LINK obj/llvm/unittests/tools/llvm-profgen/LLVMProfgenTests
[3/4335] LINK obj/llvm/unittests/TextAPI/TextAPITests
[4/4335] LINK obj/llvm/unittests/BinaryFormat/BinaryFormatTests
[5/4335] LINK ./bin/llvm-tblgen
[6/4335] LINK obj/llvm/unittests/TargetParser/TargetParserTests
[7/4335] LINK obj/llvm/unittests/ADT/ADTTests
[8/4335] LINK obj/llvm/unittests/Support/SupportTests
[9/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectUpdater.o
[10/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectSynthesizedValue.o
[11/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectCast.o
[12/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectConstResultChild.o
[13/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectConstResult.o
[14/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectList.o
[15/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectConstResultCast.o
[16/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectDynamicValue.o
[17/4335] CXX obj/lldb/source/ValueObject/ValueObject.DILAST.o
[18/4335] CXX obj/lldb/source/ValueObject/ValueObject.DILLexer.o
[19/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectConstResultImpl.o
[20/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectMemory.o
[21/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectChild.o
[22/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectVariable.o
[23/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectRegister.o
[24/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectVTable.o
[25/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObjectSynthetic.o
[26/4335] CXX obj/lldb/source/ValueObject/ValueObject.DILParser.o
[27/4335] CXX obj/lldb/source/ValueObject/ValueObject.DILEval.o
[28/4335] CXX obj/lldb/source/ValueObject/ValueObject.ValueObject.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.