I applied the following changes to PndMvdRecoHit:
I put the clone() function as inline into the .h file like in the PndTpcRecoHit
virtual AbsRecoHit* clone(){return new PndMvdRecoHit(*this);};
Furthermore I removed the const of the first argument in the residualScalar(...) function to match it with the one in AbsRecoHit .
Tell me if more is needed.
Greetings from Dresden, Ralf.]]>