ninja: Entering directory `out/gn'
[1/436] AR lib/libLLVMScalarOpts.a
[2/436] AR lib/libclangDaemon.a
[3/436] AR lib/libclangInterpreter.a
[4/436] 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'
[5/436] LINK ./bin/clang-apply-replacements
[6/436] LINK obj/clang/unittests/InstallAPI/InstallAPITests
[7/436] LINK ./bin/clang-offload-bundler
[8/436] LINK ./bin/llvm-link
[9/436] LINK ./bin/llvm-mca
[10/436] LINK obj/clang-tools-extra/unittests/clang-apply-replacements/ClangApplyReplacementsTests
[11/436] LINK ./bin/llvm-nm
[12/436] LINK obj/bolt/unittests/Profile/ProfileTests
[13/436] LINK ./bin/llvm-bat-dump
[14/436] LINK ./bin/llvm-ml
[15/436] LINK ./bin/llvm-libtool-darwin
[16/436] LINK obj/clang/unittests/DependencyScanning/ClangDependencyScanningTests
[17/436] LINK ./bin/llvm-lipo
[18/436] LINK ./bin/llvm-mc
[19/436] LINK ./bin/llvm-jitlink
[20/436] LINK ./bin/llvm-bolt-heatmap
[21/436] LINK ./bin/diagtool
[22/436] LINK ./bin/llvm-bolt
[23/436] LINK obj/bolt/unittests/Passes/PassTests
[24/436] LINK obj/clang-tools-extra/unittests/clang-include-fixer/ClangIncludeFixerTests
[25/436] LINK ./bin/clang-doc
[26/436] LINK ./bin/clang-move
[27/436] LINK obj/clang-tools-extra/unittests/clang-doc/ClangDocTests
[28/436] LINK obj/clang/unittests/Analysis/ClangAnalysisTests
[29/436] LINK obj/clang-tools-extra/unittests/clang-move/ClangMoveTests
[30/436] LINK ./bin/pp-trace
[31/436] LINK obj/bolt/unittests/Core/CoreTests
[32/436] LINK ./bin/clang-query
[33/436] LINK ./bin/modularize
[34/436] LINK ./bin/clang-change-namespace
[35/436] LINK obj/clang/unittests/Analysis/Scalable/ClangScalableAnalysisTests
[36/436] LINK ./bin/clang-reorder-fields
[37/436] LINK ./bin/llvm-isel-fuzzer
[38/436] LINK obj/clang-tools-extra/unittests/clang-query/ClangQueryTests
[39/436] LINK ./bin/clang-refactor
[40/436] LINK ./bin/clang-include-fixer
[41/436] LINK ./bin/find-all-symbols
[42/436] LINK obj/clang/unittests/AST/ASTTests
[43/436] LINK ./bin/dexp
[44/436] LINK ./bin/llvm-ir2vec
[45/436] LINK ./bin/clang-scan-deps
[46/436] LINK obj/clang/unittests/ASTMatchers/Dynamic/DynamicASTMatchersTests
[47/436] LINK obj/clang/unittests/AST/ByteCode/InterpTests
[48/436] LINK obj/clang-tools-extra/unittests/clang-change-namespace/ClangChangeNamespaceTests
[49/436] LINK ./bin/llvm-lto2
[50/436] LINK obj/clang-tools-extra/unittests/clang-include-fixer/find-all-symbols/FindAllSymbolsTests
[51/436] LINK obj/clang/unittests/CrossTU/CrossTUTests
[52/436] LINK obj/clang-tools-extra/unittests/clang-tidy/ClangTidyTests
[53/436] LINK ./bin/clang-linker-wrapper
[54/436] LINK obj/clang/unittests/ASTMatchers/ASTMatchersTests
[55/436] LINK obj/clang/unittests/Analysis/FlowSensitive/ClangAnalysisFlowSensitiveTests
[56/436] LINK ./bin/clang-nvlink-wrapper
[57/436] LINK ./bin/llvm-gsymutil
[58/436] LINK ./bin/clang-diff
[59/436] LINK ./bin/llvm-lto
[60/436] LINK ./bin/clang-extdef-mapping
[61/436] LINK ./bin/clang-import-test
[62/436] LINK ./bin/clang-sycl-linker
[63/436] LINK obj/clang/unittests/CodeGen/ClangCodeGenTests
[64/436] LINK ./bin/clang-installapi
[65/436] LINK ./bin/clang-tidy
[66/436] SOLINK ./lib/libclang.so
[67/436] LINK obj/clang/unittests/Frontend/FrontendTests
[68/436] LINK ./bin/clangd
[69/436] LINK ./bin/clang-check
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.