Whats about the graphic libraries?
To load and save images, Prima employs graphic libraries. Such as, to load GIF files, libungif library is used, etc. Makefile.PL finds available libraries and links Prima against these. It is possible to compile Prima without any, but this is not really useful. If Makefile.PL wouldn’t find any of the supported graphic libraries, it would abort unless WANTNOCODECS=1 parameter was supplied to it.