From nickm@cream.org Fri Jan 25 16:18:59 2002
While it _is_ possible to stop them to distribute the modified version in binary form, it is not possible to force them to undisclose their part of the source. So GPL gives no special help to enforce the freedom of the sources.
Oh sure, they can hang on to their "modifications" - let us say they changed a line from int fish = 1; to long fish = 1;
They would be able to "keep" the line "long fish = 1;" and that's it. They'd have to agree not to use any of your code. So, what's the point in keeping these "modifications" if they have no right to the thing it modifies? :-)
Which brings us back to german Copyright or better "Authorship Right" basic and shows that you cannot enforce the arrangements from GPL itself.
Jörg
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin js@cs.tu-berlin.de (uni) If you don't have iso-8859-1 schilling@fokus.gmd.de (work) chars I am J"org Schilling URL: http://www.fokus.gmd.de/usr/schilling ftp://ftp.fokus.gmd.de/pub/unix