COMP: Remove some warnings when compiling VTK with Xcode
COMP: Remove some warnings when compiling VTK with Xcode

demarle/VTK,jmerkow/VTK,biddisco/VTK,biddisco/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,ashray/VTK-EVM,mspark93/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,jmerkow/VTK,mspark93/VTK,cjh1/VTK,biddisco/VTK,gram526/VTK,cjh1/VTK,keithroe/vtkoptix,sankhesh/VTK,SimVascular/VTK,ashray/VTK-EVM,gram526/VTK,naucoin/VTKSlicerWidgets,collects/VTK,sumedhasingla/VTK,msmolens/VTK,naucoin/VTKSlicerWidgets,sankhesh/VTK,jeffbaumes/jeffbaumes-vtk,sumedhasingla/VTK,Wuteyan/VTK,demarle/VTK,spthaolt/VTK,sumedhasingla/VTK,naucoin/VTKSlicerWidgets,johnkit/vtk-dev,berendkleinhaneveld/VTK,Wuteyan/VTK,demarle/VTK,jeffbaumes/jeffbaumes-vtk,Wuteyan/VTK,naucoin/VTKSlicerWidgets,mspark93/VTK,naucoin/VTKSlicerWidgets,Wuteyan/VTK,jmerkow/VTK,jeffbaumes/jeffbaumes-vtk,sankhesh/VTK,johnkit/vtk-dev,spthaolt/VTK,biddisco/VTK,sumedhasingla/VTK,aashish24/VTK-old,demarle/VTK,cjh1/VTK,keithroe/vtkoptix,candy7393/VTK,collects/VTK,sankhesh/VTK,ashray/VTK-EVM,sumedhasingla/VTK,collects/VTK,gram526/VTK,msmolens/VTK,daviddoria/PointGraphsPhase1,candy7393/VTK,sankhesh/VTK,collects/VTK,msmolens/VTK,aashish24/VTK-old,sankhesh/VTK,spthaolt/VTK,collects/VTK,daviddoria/PointGraphsPhase1,jmerkow/VTK,collects/VTK,biddisco/VTK,demarle/VTK,gram526/VTK,sumedhasingla/VTK,keithroe/vtkoptix,ashray/VTK-EVM,msmolens/VTK,SimVascular/VTK,keithroe/vtkoptix,spthaolt/VTK,SimVascular/VTK,demarle/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,arnaudgelas/VTK,jmerkow/VTK,hendradarwin/VTK,Wuteyan/VTK,hendradarwin/VTK,sgh/vtk,candy7393/VTK,mspark93/VTK,berendkleinhaneveld/VTK,msmolens/VTK,msmolens/VTK,keithroe/vtkoptix,arnaudgelas/VTK,candy7393/VTK,gram526/VTK,cjh1/VTK,msmolens/VTK,sgh/vtk,sgh/vtk,cjh1/VTK,msmolens/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,arnaudgelas/VTK,Wuteyan/VTK,arnaudgelas/VTK,arnaudgelas/VTK,aashish24/VTK-old,johnkit/vtk-dev,daviddoria/PointGraphsPhase1,demarle/VTK,jeffbaumes/jeffbaumes-vtk,jmerkow/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,candy7393/VTK,SimVascular/VTK,candy7393/VTK,ashray/VTK-EVM,biddisco/VTK,demarle/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,cjh1/VTK,jeffbaumes/jeffbaumes-vtk,ashray/VTK-EVM,johnkit/vtk-dev,hendradarwin/VTK,gram526/VTK,sgh/vtk,johnkit/vtk-dev,keithroe/vtkoptix,hendradarwin/VTK,mspark93/VTK,mspark93/VTK,SimVascular/VTK,aashish24/VTK-old,hendradarwin/VTK,spthaolt/VTK,biddisco/VTK,SimVascular/VTK,gram526/VTK,SimVascular/VTK,SimVascular/VTK,sgh/vtk,sgh/vtk,sumedhasingla/VTK,mspark93/VTK,mspark93/VTK,sankhesh/VTK,aashish24/VTK-old,jeffbaumes/jeffbaumes-vtk,keithroe/vtkoptix,hendradarwin/VTK,aashish24/VTK-old,Wuteyan/VTK,candy7393/VTK,ashray/VTK-EVM,hendradarwin/VTK,johnkit/vtk-dev,johnkit/vtk-dev,arnaudgelas/VTK,keithroe/vtkoptix,candy7393/VTK,spthaolt/VTK,ashray/VTK-EVM