ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/361] AR lib/libLLVMRISCVCodeGen.a
[2/361] ACTION //llvm/utils/llvm-lit:llvm-lit(//llvm/utils/gn/build/toolchain:unix)
FAILED: bin/llvm-lit 
python3 ../../llvm/utils/gn/build/write_cmake_config.py -o bin/llvm-lit ../../llvm/utils/llvm-lit/llvm-lit.in LLVM_SOURCE_DIR=../../../llvm Python3_EXECUTABLE=/usr/bin/env\ python3 BUILD_MODE=. LLVM_LIT_CONFIG_MAP=\#\ 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\ \'\'\\n\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../bolt/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/bolt/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang-tools-extra/clangd/unittests/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang-tools-extra/clangd/unittests/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../clang/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/clang/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lld/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lld/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/API/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/API/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Shell/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Shell/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../lldb/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/lldb/test/Unit/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/lit.site.cfg.py\'\)\)\\nmap_config\(\\n\ \ \ \ path\(r\'../../../llvm/test/Unit/lit.cfg.py\'\),\\n\ \ \ \ path\(r\'../gen/llvm/test/Unit/lit.site.cfg.py\'\)\)
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 72, in main
    in_line = var_re.sub(repl, in_line)
  File "/usr/local/google/home/thakis/src/llvm-project/out/gn/../../llvm/utils/gn/build/write_cmake_config.py", line 70, in repl
    return values[key]
           ~~~~~~^^^^^
KeyError: 'LLVM_WINDOWS_PREFER_FORWARD_SLASH'
[3/361] LINK ./bin/llvm-libtool-darwin
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[5/361] LINK ./bin/llvm-mc
[6/361] LINK ./bin/llvm-lipo
[7/361] LINK ./bin/llvm-jitlink
[8/361] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[9/361] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[10/361] LINK ./bin/clang-reorder-fields
[11/361] LINK ./bin/clang-move
[12/361] LINK ./bin/clang-change-namespace
[13/361] LINK ./bin/llvm-bolt-heatmap
[14/361] LINK obj/clang-tools-extra/unittests/clang-include-fixer/find-all-symbols/FindAllSymbolsTests
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[16/361] LINK ./bin/clang-installapi
[17/361] LINK obj/clang-tools-extra/unittests/clang-include-fixer/ClangIncludeFixerTests
[18/361] LINK ./bin/clang-scan-deps
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[20/361] LINK ./bin/llvm-isel-fuzzer
[21/361] LINK obj/bolt/unittests/Core/CoreTests
[22/361] LINK ./bin/llvm-bolt
[23/361] LINK ./bin/pp-trace
[24/361] LINK obj/clang/unittests/Index/IndexTests
[25/361] LINK ./bin/clang-diff
[26/361] LINK ./bin/modularize
[27/361] LINK obj/clang-tools-extra/unittests/clang-change-namespace/ClangChangeNamespaceTests
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[29/361] LINK obj/clang/unittests/CrossTU/CrossTUTests
[30/361] LINK ./bin/clang-query
[31/361] LINK ./bin/clang-doc
[32/361] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
[33/361] LINK obj/clang/unittests/Analysis/FlowSensitive/ClangAnalysisFlowSensitiveTests
[34/361] LINK ./bin/clang-extdef-mapping
[35/361] LINK obj/clang-tools-extra/unittests/clang-query/ClangQueryTests
[36/361] LINK obj/clang/unittests/Analysis/ClangAnalysisTests
[37/361] LINK ./bin/llvm-lto2
[38/361] LINK obj/clang/unittests/Analysis/Scalable/ClangScalableAnalysisTests
[39/361] LINK obj/clang-tools-extra/unittests/clang-move/ClangMoveTests
[40/361] LINK obj/clang/unittests/Serialization/SerializationTests
[41/361] LINK ./bin/clang-nvlink-wrapper
[42/361] LINK obj/bolt/unittests/Passes/PassTests
[43/361] LINK ./bin/dexp
[44/361] LINK ./bin/llvm-lto
[45/361] LINK ./bin/clangd
[46/361] LINK ./bin/clang-sycl-linker
[47/361] LINK obj/clang/unittests/StaticAnalyzer/StaticAnalysisTests
[48/361] LINK obj/clang/unittests/AST/ASTTests
[49/361] LINK obj/clang/unittests/Sema/SemaTests
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[51/361] LINK obj/clang-tools-extra/unittests/clang-tidy/ClangTidyTests
[52/361] LINK obj/clang/unittests/ASTMatchers/ASTMatchersTests
[53/361] LINK obj/clang/unittests/AST/ByteCode/InterpTests
[54/361] LINK ./bin/llvm-ir2vec
[55/361] LINK ./bin/clang-refactor
[56/361] LINK obj/clang/unittests/Driver/ClangDriverTests
[57/361] LINK ./bin/clang-linker-wrapper
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[61/361] LINK ./bin/clang-repl
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[64/361] LINK ./bin/lldb
[65/361] LINK obj/clang/unittests/Interpreter/ExceptionTests/ClangReplInterpreterExceptionTests
[66/361] SOLINK ./lib/libclang.so
[67/361] LINK obj/clang/unittests/Interpreter/ClangReplInterpreterTests
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.