ninja: Entering directory `out/gn'
[1/6043] CXX obj/llvm/lib/Support/Support.SuffixTreeNode.o
[2/6043] CXX obj/llvm/lib/Support/Support.ARMBuildAttrs.o
[3/6043] CXX obj/llvm/lib/Support/Support.RWMutex.o
FAILED: obj/llvm/lib/Support/Support.RWMutex.o 
../../chromeclang/bin/clang++ -MMD -MF obj/llvm/lib/Support/Support.RWMutex.o.d -o obj/llvm/lib/Support/Support.RWMutex.o -c ../../llvm/lib/Support/RWMutex.cpp  -I../../llvm/lib/Support/Unix -I../../llvm/lib/Support/Windows -I../../llvm/include -Igen/llvm/include -arch arm64 -isysroot ../../sysroot/MacOSX.sdk -mmacos-version-min=12 -mmacos-version-min=12 -O3 -fdiagnostics-color -Wall -Wextra -Wno-unused-parameter -Wdelete-non-virtual-dtor -Wstring-conversion -no-canonical-prefixes -Werror=date-time -isysroot ../../sysroot/MacOSX.sdk -Wpoison-system-directories -fPIC -Wcovered-switch-default -std=c++17 -fvisibility-inlines-hidden -fno-exceptions -fno-rtti
../../llvm/lib/Support/RWMutex.cpp:47:36: error: use of undeclared identifier 'safe_malloc'
    static_cast<pthread_rwlock_t*>(safe_malloc(sizeof(pthread_rwlock_t)));
                                   ^
1 error generated.
[4/6043] CXX obj/llvm/lib/Support/Support.ConvertUTFWrapper.o
[5/6043] CXX obj/llvm/lib/Support/Support.NativeFormatting.o
[6/6043] CXX obj/llvm/lib/Support/Support.InitLLVM.o
[7/6043] CXX obj/llvm/lib/Support/Support.MSP430AttributeParser.o
[8/6043] CXX obj/llvm/lib/Support/Support.LockFileManager.o
[9/6043] CXX obj/llvm/lib/Support/Support.MemoryBuffer.o
[10/6043] CXX obj/llvm/lib/Support/Support.DAGDeltaAlgorithm.o
[11/6043] CXX obj/llvm/lib/Support/Support.raw_ostream.o
[12/6043] CXX obj/llvm/lib/Support/Support.YAMLTraits.o
ninja: build stopped: subcommand failed.
Command '['ninja', '-C', 'out/gn']' returned non-zero exit status 1.