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   2c24f0292496..4bfc9bd4cfc6  main       -> origin/main
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HEAD is now at 4bfc9bd4cfc6 [libc][docs] Add guide for implementing a function (#188499)
INFO:2026-03-25T20:44:25Z:root:syncing...
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Switched to a new branch 'merge'
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[merge d5ee25344cb9] [gn build] Port 28318d5db86f
 1 file changed, 1 insertion(+)
[gn build] Port 28318d5db86f -- https://github.com/llvm/llvm-project/commit/28318d5db86f
INFO:2026-03-25T20:44:26Z:root:building
ninja: Entering directory `out/gn'
[0/1] Regenerating ninja files
[1/2437] 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_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_STD_THREAD=1 _LIBCPP_ABI_NAMESPACE=__1 _LIBCPP_HAS_TIME_ZONE_DATABASE=1
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 75, in main
    if values[var] == "0":
       ~~~~~~^^^^^
KeyError: '_LIBCPP_HAS_THREAD_API_C11'
[2/2437] CXX obj/llvm/lib/Target/AMDGPU/Utils/Utils.AMDGPUAsmUtils.o
[3/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUMCKernelDescriptor.o
[4/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUMCExpr.o
[5/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPUMCResourceInfo.o
[6/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SMEAttributes.o
[7/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUTargetStreamer.o
[8/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUInstPrinter.o
[9/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.SMEABIPass.o
[10/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64GlobalISelUtils.o
[11/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64DeadRegisterDefinitionsPass.o
[12/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StorePairSuppress.o
[13/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerKernelAttributes.o
[14/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CondBrTuning.o
[15/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64PostSelectOptimize.o
[16/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MachineScheduler.o
[17/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MacroFusion.o
[18/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SpeculationHardening.o
[19/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.SMEPeepholeOpt.o
[20/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CompressJumpTables.o
[21/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CleanupLocalDynamicTLSPass.o
[22/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SIMDInstrOpt.o
[23/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StackTaggingPreRA.o
[24/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerVGPREncoding.o
[25/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetObjectFile.o
[26/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SRLTDefineSuperRegs.o
[27/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SelectionDAGInfo.o
[28/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PostCoalescerPass.o
[29/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64CollectLOH.o
[30/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MachineFunctionInfo.o
[31/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerKernelArguments.o
[32/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PointerAuth.o
[33/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ExpandPseudoInsts.o
[34/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64RegisterBankInfo.o
[35/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerIntrinsics.o
[36/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerExecSync.o
[37/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64SLSHardening.o
[38/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64LowerHomogeneousPrologEpilog.o
[39/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64MCInstLower.o
[40/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64CallLowering.o
[41/2437] CXX obj/llvm/lib/Target/AMDGPU/Utils/Utils.AMDGPUBaseInfo.o
[42/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.MachineSMEABIPass.o
[43/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FalkorHWPFFix.o
[44/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64PrologueEpilogue.o
[45/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64RegisterInfo.o
[46/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPUMCInstLower.o
[47/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64O0PreLegalizerCombiner.o
[48/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64StackTagging.o
[49/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64PostLegalizerCombiner.o
[50/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerModuleLDSPass.o
[51/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64PostLegalizerLowering.o
[52/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64LoadStoreOptimizer.o
[53/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64PreLegalizerCombiner.o
[54/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FrameLowering.o
[55/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64LegalizerInfo.o
[56/2437] CXX obj/llvm/lib/Target/AMDGPU/LLVMAMDGPUCodeGen.AMDGPULowerBufferFatPointers.o
[57/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64Subtarget.o
[58/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64FastISel.o
[59/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64InstrInfo.o
[60/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetMachine.o
[61/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64TargetTransformInfo.o
[62/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ISelDAGToDAG.o
[63/2437] CXX obj/llvm/lib/Target/AArch64/GISel/LLVMAArch64CodeGen.AArch64InstructionSelector.o
[64/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUMCTargetDesc.o
[65/2437] CXX obj/llvm/lib/Target/AMDGPU/MCTargetDesc/MCTargetDesc.AMDGPUMCCodeEmitter.o
[66/2437] CXX obj/llvm/lib/Target/AArch64/LLVMAArch64CodeGen.AArch64ISelLowering.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.