Hi, The suffix can be controlled by a cache variable (VTK_CUSTOM_LIBRARY_SUFFIX), but defaults to "-${VTK_MAJOR_VERSION}.${VTK_MINOR_VERSION}".
http://public.kitware.com/pipermail/vtkusers/2015-November/092888.html I think the best practice would be to set VTK_CUSTOM_LIBRARY_SUFFIX as null for the default VTK version and let default setting play out for other versions. https://github.com/FluidityProject/fluidity/issues/113 Thanks