ninja: Entering directory `out/gn'
[1/5409] ACTION //lld/test:lit_site_cfg(//llvm/utils/gn/build/toolchain:unix)
FAILED: gen/lld/test/lit.site.cfg.py 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o gen/lld/test/lit.site.cfg.py ../../lld/test/lit.site.cfg.py.in LIT_SITE_CFG_IN_HEADER=\#\#\ Autogenerated\ from\ //lld/test/lit.site.cfg.py.in,\ do\ not\ edit\\n\\n\#\ Takes\ a\ path\ that\'s\ relative\ to\ __file__\ and\ makes\ it\ absolute.\\ndef\ path\(p\):\\n\ \ \ \ return\ os.path.abspath\(os.path.join\(__file__,\ \'..\',\ p\)\)\ if\ p\ else\ \'\' LLD_BINARY_DIR=../../../obj/lld LLD_SOURCE_DIR=../../../../../lld SHLIBDIR=../../../lib CURRENT_LIBS_DIR= CURRENT_TOOLS_DIR=../../../bin ENABLE_BACKTRACES=1 LLVM_BINARY_DIR=../../../obj/llvm LLVM_HOST_TRIPLE=arm64-apple-darwin LLVM_LIBS_DIR= LLVM_LIT_TOOLS_DIR= LLVM_SOURCE_DIR=../../../../../llvm LLVM_TOOLS_DIR=../../../bin Python3_EXECUTABLE=python3 LLVM_TARGET_TRIPLE=arm64-apple-darwin LLD_DEFAULT_LD_LLD_IS_MINGW=0 LLVM_BUILD_EXAMPLES=0 LLVM_BYE_LINK_INTO_TOOLS=0 LLVM_LIT_ERRC_MESSAGES= LLVM_ENABLE_PLUGINS=1 SHLIBEXT=.dylib LLVM_ENABLE_DIA_SDK=0 LLVM_ENABLE_LIBXML2=1 LLVM_ENABLE_ZLIB=1 LLVM_ENABLE_ZSTD=0 CMAKE_SIZEOF_VOID_P=8
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 72, in main
    in_line = var_re.sub(repl, in_line)
  File "/Users/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 70, in repl
    return values[key]
KeyError: 'LLVM_ENABLE_THREADS'
[2/5409] LINK ./bin/lldb-argdumper
[3/5409] LINK obj/llvm/unittests/Demangle/DemangleTests
[4/5409] LINK obj/llvm/unittests/LineEditor/LineEditorTests
[5/5409] LINK obj/llvm/unittests/FileCheck/FileCheckTests
[6/5409] LINK ./bin/clang-tidy-confusable-chars-gen
[7/5409] LINK ./bin/clang-tblgen
[8/5409] LINK ./bin/lldb-tblgen
[9/5409] LINK obj/llvm/unittests/Bitstream/BitstreamTests
[10/5409] LINK obj/llvm/unittests/CAS/CASTests
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.