Fix mingw release build.
Fix mingw release build.

Change-Id: I9e7042ea4f45c8759014616ea51f1d11bc303bb6

candy7393/VTK,hendradarwin/VTK,ashray/VTK-EVM,jmerkow/VTK,sankhesh/VTK,ashray/VTK-EVM,sankhesh/VTK,sankhesh/VTK,SimVascular/VTK,sumedhasingla/VTK,keithroe/vtkoptix,candy7393/VTK,ashray/VTK-EVM,ashray/VTK-EVM,jmerkow/VTK,demarle/VTK,sumedhasingla/VTK,SimVascular/VTK,gram526/VTK,jmerkow/VTK,gram526/VTK,hendradarwin/VTK,SimVascular/VTK,keithroe/vtkoptix,jmerkow/VTK,johnkit/vtk-dev,sumedhasingla/VTK,hendradarwin/VTK,gram526/VTK,johnkit/vtk-dev,candy7393/VTK,mspark93/VTK,jmerkow/VTK,sumedhasingla/VTK,jmerkow/VTK,sumedhasingla/VTK,ashray/VTK-EVM,SimVascular/VTK,demarle/VTK,keithroe/vtkoptix,candy7393/VTK,hendradarwin/VTK,hendradarwin/VTK,johnkit/vtk-dev,ashray/VTK-EVM,mspark93/VTK,gram526/VTK,hendradarwin/VTK,mspark93/VTK,candy7393/VTK,sumedhasingla/VTK,johnkit/vtk-dev,gram526/VTK,mspark93/VTK,hendradarwin/VTK,jmerkow/VTK,msmolens/VTK,msmolens/VTK,gram526/VTK,keithroe/vtkoptix,sankhesh/VTK,msmolens/VTK,mspark93/VTK,keithroe/vtkoptix,sumedhasingla/VTK,SimVascular/VTK,SimVascular/VTK,gram526/VTK,johnkit/vtk-dev,sankhesh/VTK,demarle/VTK,keithroe/vtkoptix,msmolens/VTK,sankhesh/VTK,SimVascular/VTK,keithroe/vtkoptix,johnkit/vtk-dev,msmolens/VTK,candy7393/VTK,ashray/VTK-EVM,sumedhasingla/VTK,johnkit/vtk-dev,demarle/VTK,keithroe/vtkoptix,msmolens/VTK,sankhesh/VTK,mspark93/VTK,ashray/VTK-EVM,gram526/VTK,jmerkow/VTK,SimVascular/VTK,demarle/VTK,msmolens/VTK,sankhesh/VTK,demarle/VTK,msmolens/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,mspark93/VTK,demarle/VTK,candy7393/VTK