Raul Miller wrote: > Wrong side of the interface. Of course the implementation of > buffer-substring is copyrightable. > > However, is the code that calls it copyrightable? That's essentially > what you were asking about in the question I was answering.
Here's what I meant: minor-mode foobar is a copyrighted work with a license incompatible with the GPL. It uses a call to buffer-substring. The buffer-substring copyright owner could say: You can't do that; implement your own buffer-substring. Of course, it's likely that _any_ minor-mode written for Emacs has a call to some Emacs internal every second line, and not a single call to buffer-substring. > I'm not saying anything radical here. Neither am I. I'm just wondering where the line is. Years ago when I satrted coding elisp and wasn't concerned about licensing issues, I thought I was okay as long as I didn't load anything via 'require'. But obviously I was using other people's copyrighted code way before that. Peter
