COMP: Avoid warning in kwsys IOStream.cxx when the helper functions are not needed.  Define one public symbol to avoid complaints from archivers about empty object files.
COMP: Avoid warning in kwsys IOStream.cxx when the helper functions are not needed.  Define one public symbol to avoid complaints from archivers about empty object files.

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