ENH: add the unix makefile generator as an option from the windows GUI, this builds with mingw, cygwin, and combinations of make cl, bcc32
ENH: add the unix makefile generator as an option from the windows GUI, this builds with mingw, cygwin, and combinations of make cl, bcc32

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