make errors on Mac

Hello!
I am trying to get this project up and running on my Mac (macOS Monterey 12.6).

- Installation of point cloud library seems correct.

![pcl_error](https://user-images.githubusercontent.com/69260149/193433135-4830b5c2-b81c-4b56-93a4-75aeb12f048e.jpg)

- I was able to run `cmake ..` successfully in the build folder.

- However, I got errors when typing `make` in the build folder.  Does anyone has an idea what might be the problem?  Thanks a lot!

`Consolidate compiler generated dependencies of target environment
[ 25%] Building CXX object CMakeFiles/environment.dir/src/environment.cpp.o
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:171:
/usr/local/include/eigen3/Eigen/src/Core/MathFunctions.h:989:12: error: reference to unresolved using declaration
    return isfinite EIGEN_NOT_A_MACRO (x);
           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:323:1: note: using declaration annotated with 'using_if_exists' here
using ::isfinite _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:171:
/usr/local/include/eigen3/Eigen/src/Core/MathFunctions.h:1004:12: error: reference to unresolved using declaration
    return isinf EIGEN_NOT_A_MACRO (x);
           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:324:1: note: using declaration annotated with 'using_if_exists' here
using ::isinf _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:171:
/usr/local/include/eigen3/Eigen/src/Core/MathFunctions.h:1019:12: error: reference to unresolved using declaration
    return isnan EIGEN_NOT_A_MACRO (x);
           ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:325:1: note: using declaration annotated with 'using_if_exists' here
using ::isnan _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:251:25: error: expected unqualified-id
    output.value = std::signbit(v) ? 0xFFC0: 0x7FC0;
                        ^
/usr/local/include/math.h:170:5: note: expanded from macro 'signbit'
    ( sizeof(x) == sizeof(float)  ? __inline_signbitf((float)(x))        \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:286:25: error: expected unqualified-id
    output.value = std::signbit(ff) ? 0xFFC0: 0x7FC0;
                        ^
/usr/local/include/math.h:170:5: note: expanded from macro 'signbit'
    ( sizeof(x) == sizeof(float)  ? __inline_signbitf((float)(x))        \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:478:11: error: reference to unresolved using declaration
  return (isinf)(float(a));
          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:324:1: note: using declaration annotated with 'using_if_exists' here
using ::isinf _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:478:11: error: reference to unresolved using declaration
  return (isinf)(float(a));
          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:324:1: note: using declaration annotated with 'using_if_exists' here
using ::isinf _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:482:11: error: reference to unresolved using declaration
  return (isnan)(float(a));
          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:325:1: note: using declaration annotated with 'using_if_exists' here
using ::isnan _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:42:
In file included from /usr/local/include/pcl-1.12/pcl/correspondence.h:45:
In file included from /usr/local/include/pcl-1.12/pcl/pcl_base.h:46:
In file included from /usr/local/include/pcl-1.12/pcl/memory.h:48:
In file included from /usr/local/include/eigen3/Eigen/Core:177:
/usr/local/include/eigen3/Eigen/src/Core/arch/Default/BFloat16.h:482:11: error: reference to unresolved using declaration
  return (isnan)(float(a));
          ^
/Library/Developer/CommandLineTools/SDKs/MacOSX13.0.sdk/usr/include/c++/v1/cmath:325:1: note: using declaration annotated with 'using_if_exists' here
using ::isnan _LIBCPP_USING_IF_EXISTS;
^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:40:15: error: expected member name or ';' after declaration specifiers
  static bool isnan(T x) { return std::isnan(x); }
  ~~~~~~~~~~~ ^
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:40:15: error: expected ')'
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:40:15: note: to match this '('
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:46:15: error: expected member name or ';' after declaration specifiers
  static bool isnan(T) { return false; }
  ~~~~~~~~~~~ ^
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:46:15: error: expected ')'
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:46:15: note: to match this '('
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:50:6: error: expected unqualified-id
bool isnan(T x)
     ^
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:50:6: error: expected ')'
/usr/local/include/math.h:165:7: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
      ^
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:50:6: note: to match this '('
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:131:21: error: expected unqualified-id
      if (::detail::isnan(value))
                    ^
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:72:
/usr/local/include/vtk-9.1/vtkGenericDataArrayLookupHelper.h:144:19: error: expected unqualified-id
    if (::detail::isnan(value) && !this->NanIndices.empty())
                  ^
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:422:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.txx:21:
/usr/local/include/vtk-9.1/vtkMath.h:2031:15: error: expected unqualified-id
  return std::isinf(x);
              ^
/usr/local/include/math.h:160:5: note: expanded from macro 'isinf'
    ( sizeof(x) == sizeof(float)  ? __inline_isinff((float)(x))          \
    ^
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/environment.cpp:5:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/lidar.h:3:
In file included from /Users/xpcai2016/Documents/GitHub/SFND_Lidar_Obstacle_Detection_Git/src/sensors/../render/render.h:7:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/pcl_visualizer.h:48:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/common/actor_map.h:40:
In file included from /usr/local/include/pcl-1.12/pcl/visualization/point_cloud_geometry_handlers.h:51:
In file included from /usr/local/include/vtk-9.1/vtkFloatArray.h:27:
In file included from /usr/local/include/vtk-9.1/vtkAOSDataArrayTemplate.h:38:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.h:422:
In file included from /usr/local/include/vtk-9.1/vtkGenericDataArray.txx:21:
/usr/local/include/vtk-9.1/vtkMath.h:2044:15: error: expected unqualified-id
  return std::isnan(x);
              ^
/usr/local/include/math.h:165:5: note: expanded from macro 'isnan'
    ( sizeof(x) == sizeof(float)  ? __inline_isnanf((float)(x))          \
    ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[2]: *** [CMakeFiles/environment.dir/src/environment.cpp.o] Error 1
make[1]: *** [CMakeFiles/environment.dir/all] Error 2
make: *** [all] Error 2
`


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