Problem: CZMQ zsock has 'polymorphic' self values.
Problem: CZMQ zsock has 'polymorphic' self values.

Solution: Add optional 'polymorphic' attribute to method, if defined, C
api is generated as a void * instead of class_t *.

zeromq/zproject,awynne/zproject,twhittock/zproject,paddor/zproject,eburkitt/zproject,keent/zproject,hintjens/zproject,twhittock/zproject,Asmod4n/zproject,asokoloski/zproject,taotetek/zproject,asokoloski/zproject,Asmod4n/zproject,mvala/zproject,awynne/zproject,taotetek/zproject,zeromq/zproject,miska/zproject,jemc/zproject,taotetek/zproject,trevorbernard/zproject,jemc/zproject,oikosdev/zproject,keent/zproject,hintjens/zproject,zeromq/zproject,paddor/zproject,mvala/zproject,paddor/zproject,eburkitt/zproject