[OpenMesh] [OpenFlipper] Building only the backend part of OpenFlipper

Hi,

First of all, thank you for making this great software (both OM and OF) free. My question is OF related, since I cannot joing OF mailing list. Can I build and use the backend only (math helpers + algorithms) or extract them to avoid including the Qt and ACG parts in my project? A more important question is: does the license allow that at all?

Best regards