In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkImageAlgorithm.h:32:0,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:18,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:
/home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkAlgorithm.h:569:15: warning: ‘virtual int vtkAlgorithm::Update(vtkInformation*)’ was hidden [-Woverloaded-virtual]
   virtual int Update(vtkInformation* requests);
               ^
In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:0:
/home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:80:8: warning:   by ‘virtual void vtkITKImageThresholdCalculator::Update()’ [-Woverloaded-virtual]
   void Update() VTK_OVERRIDE;
        ^
In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkImageAlgorithm.h:32:0,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:18,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:
/home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkAlgorithm.h:562:15: warning: ‘virtual int vtkAlgorithm::Update(int, vtkInformationVector*)’ was hidden [-Woverloaded-virtual]
   virtual int Update(int port, vtkInformationVector* requests);
               ^
In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:0:
/home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:80:8: warning:   by ‘virtual void vtkITKImageThresholdCalculator::Update()’ [-Woverloaded-virtual]
   void Update() VTK_OVERRIDE;
        ^
In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkImageAlgorithm.h:32:0,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:18,
                 from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:
/home/jcfr/Projects/Slicer-Qt5-VTK9-Release/VTKv9/Common/ExecutionModel/vtkAlgorithm.h:536:16: warning: ‘virtual void vtkAlgorithm::Update(int)’ was hidden [-Woverloaded-virtual]
   virtual void Update(int port);
                ^
In file included from /home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.cxx:16:0:
/home/jcfr/Projects/Slicer-Qt5-VTK9/Libs/vtkITK/vtkITKImageThresholdCalculator.h:80:8: warning:   by ‘virtual void vtkITKImageThresholdCalculator::Update()’ [-Woverloaded-virtual]
   void Update() VTK_OVERRIDE;
        ^