Minor change to allow mingw builds to work better.
Minor change to allow mingw builds to work better.

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