Hi , Having trouble building Blender on macos 10.14.6 , x86-64, XCode version 11.3.1

[100%] Building CXX object intern/cycles/integrator/CMakeFiles/cycles_integrator.dir/path_trace_work.cpp.o
[100%] Building CXX object intern/cycles/integrator/CMakeFiles/cycles_integrator.dir/path_trace_work_cpu.cpp.o
[100%] Building CXX object intern/cycles/integrator/CMakeFiles/cycles_integrator.dir/path_trace_work_gpu.cpp.o
In file included from /Users/may/Desktop/Blender/blender/intern/cycles/integrator/path_trace.cpp:17:
In file included from /Users/may/Desktop/Blender/blender/intern/cycles/integrator/../integrator/path_trace.h:19:
In file included from /Users/may/Desktop/Blender/blender/intern/cycles/integrator/../integrator/denoiser.h:23:
In file included from /Users/may/Desktop/Blender/blender/intern/cycles/integrator/../device/device.h:29:
In file included from /Users/may/Desktop/Blender/blender/intern/cycles/integrator/../util/log.h:22:
/Users/may/Desktop/Blender/blender/extern/glog/include/glog/logging.h:640:9: error: use of overloaded
      operator '<<' is ambiguous (with operand types 'std::ostream' (aka 'basic_ostream<char>') and
      'const nullptr_t')
  (*os) << v;
  ~~~~~ ^  ~
/Users/may/Desktop/Blender/blender/extern/glog/include/glog/logging.h:696:3: note: in instantiation of
      function template specialization 'google::MakeCheckOpValueString<nullptr_t>' requested here
  MakeCheckOpValueString(comb.ForVar2(), v2);
  ^
/Users/may/Desktop/Blender/blender/extern/glog/include/glog/logging.h:720:1: note: in instantiation of
      function template specialization 'google::MakeCheckOpString<ccl::Device *, nullptr_t>' requested
      here
DEFINE_CHECK_OP_IMPL(Check_NE, !=)  // Use CHECK(x == NULL) instead.