ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/443] AR lib/libLLVMAnalysis.a
[2/443] AR lib/libLLVMGlobalISel.a
[3/443] AR lib/libLLVMSelectionDAG.a
[4/443] AR lib/libLLVMAArch64CodeGen.a
[5/443] 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'
[6/443] LINK obj/llvm/unittests/DWARFLinkerParallel/DWARFLinkerParallelTests
[7/443] LINK obj/clang/unittests/InstallAPI/InstallAPITests
[8/443] LINK ./bin/lli-child-target
[9/443] LINK ./bin/llvm-stress
[10/443] LINK ./bin/llubi
[11/443] LINK ./bin/llvm-modextract
[12/443] LINK ./bin/llvm-sim
[13/443] LINK ./bin/verify-uselistorder
[14/443] LINK obj/llvm/unittests/Linker/LinkerTests
[15/443] LINK ./bin/llvm-tli-checker
[16/443] LINK obj/llvm/unittests/SandboxIR/SandboxIRTests
[17/443] LINK ./bin/llvm-offload-wrapper
[18/443] LINK ./bin/llvm-cat
[19/443] LINK obj/llvm/unittests/Transforms/Vectorize/SandboxVectorizer/SandboxVectorizerTests
[20/443] LINK obj/llvm/unittests/MC/SystemZ/SystemZAsmLexerTests
[21/443] LINK ./bin/llvm-as
[22/443] LINK obj/llvm/unittests/Transforms/Vectorize/VectorizeTests
[23/443] LINK obj/llvm/unittests/MC/X86/X86MCTests
[24/443] LINK obj/llvm/unittests/Bitcode/BitcodeTests
[25/443] LINK obj/llvm/unittests/ExecutionEngine/ExecutionEngineTests
[26/443] LINK obj/llvm/unittests/FuzzMutate/FuzzMutateTests
[27/443] LINK obj/llvm/unittests/Transforms/IPO/IPOTests
[28/443] LINK ./bin/llvm-cgdata
[29/443] LINK ./bin/llvm-link
[30/443] LINK ./bin/llvm-nm
[31/443] LINK ./bin/sancov
[32/443] LINK ./bin/llvm-dwarfdump
[33/443] LINK ./bin/llvm-objdump
[34/443] LINK obj/llvm/unittests/Target/LoongArch/LoongArchTests
[35/443] LINK obj/bolt/unittests/Profile/ProfileTests
[36/443] LINK ./bin/llvm-debuginfo-analyzer
[37/443] LINK ./bin/llvm-bat-dump
[38/443] LINK ./bin/llvm-cfi-verify
[39/443] LINK obj/llvm/unittests/tools/llvm-exegesis/LLVMExegesisTests
[40/443] LINK obj/llvm/unittests/Target/ARM/ARMTests
[41/443] LINK ./bin/llvm-profgen
[42/443] LINK obj/llvm/unittests/Target/PowerPC/PowerPCTests
[43/443] LINK obj/llvm/unittests/tools/llvm-mca/LLVMMCATests
[44/443] LINK obj/llvm/unittests/Target/WebAssembly/WebAssemblyTests
[45/443] LINK ./bin/llvm-mca
[46/443] LINK ./bin/llvm-extract
[47/443] LINK obj/llvm/unittests/tools/llvm-exegesis/X86/LLVMExegesisX86Tests
[48/443] LINK obj/llvm/unittests/ExecutionEngine/MCJIT/MCJITTests
[49/443] LINK obj/llvm/unittests/Transforms/Utils/UtilsTests
[50/443] LINK ./bin/lli
[51/443] LINK obj/llvm/unittests/tools/llvm-exegesis/PowerPC/LLVMExegesisPowerPCTests
[52/443] LINK obj/llvm/unittests/Transforms/Coroutines/CoroTests
[53/443] LINK obj/llvm/unittests/Transforms/Instrumentation/InstrumentationTests
[54/443] LINK obj/llvm/unittests/tools/llvm-cfi-verify/CFIVerifyTests
[55/443] LINK obj/llvm/unittests/IR/IRTests
[56/443] LINK obj/llvm/unittests/Frontend/LLVMFrontendTests
[57/443] LINK obj/llvm/unittests/Transforms/Scalar/ScalarTests
[58/443] LINK obj/llvm/unittests/Passes/Plugins/PluginsTests
[59/443] LINK obj/llvm/unittests/tools/llvm-exegesis/Mips/LLVMExegesisMipsTests
[60/443] LINK obj/llvm/unittests/tools/llvm-exegesis/RISCV/LLVMExegesisRISCVTests
[61/443] LINK obj/llvm/unittests/ExecutionEngine/Orc/OrcJITTests
[62/443] LINK obj/llvm/unittests/Analysis/AnalysisTests
[63/443] LINK obj/llvm/unittests/Target/RISCV/RISCVTests
[64/443] LINK obj/llvm/unittests/MC/AMDGPU/AMDGPUMCTests
[65/443] LINK obj/llvm/unittests/Target/AMDGPU/AMDGPUTests
[66/443] LINK obj/llvm/unittests/Target/X86/X86Tests
[67/443] LINK ./bin/llvm-bolt-heatmap
[68/443] CXX obj/clang/lib/APINotes/APINotes.APINotesManager.o
[69/443] CXX obj/clang/lib/APINotes/APINotes.APINotesReader.o
[70/443] CXX obj/clang/lib/Sema/Sema.SemaAPINotes.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.