File QCSXCAD-vtk.patch of Package QCSXCAD

--- a/CMakeLists.txt	2018-12-14 23:45:50.112002905 +0100
+++ b/CMakeLists.txt	2018-12-15 00:01:35.322874327 +0100
@@ -98,8 +98,11 @@
 if (WIN32)
     find_package(VTK 6.1 REQUIRED)
 else()
+   find_package(VTK COMPONENTS vtkGUISupportQt vtkRenderingLOD vtkIOGeometry vtkIOXML vtkIOPLY vtkIOImage vtkInteractionWidgets NO_MODULE)
     # prefer >=6.1, fallback to >=5.4
-    find_package(VTK 6.1 COMPONENTS vtkGUISupportQt vtkRenderingLOD vtkRenderingOpenGL vtkIOXML vtkIOPLY vtkIOImage vtkInteractionWidgets NO_MODULE)
+    IF (NOT ${VTK_FOUND})
+       find_package(VTK 6.1 COMPONENTS vtkGUISupportQt vtkRenderingLOD vtkRenderingOpenGL vtkIOXML vtkIOPLY vtkIOImage vtkInteractionWidgets NO_MODULE)
+    endif()
     IF (NOT ${VTK_FOUND})
         find_package(VTK REQUIRED)
     endif()