Subject: Re: IC's mystery patent claims
From: <stephen@xemacs.org>
Date: Thu, 28 Sep 2006 16:29:57 +0900

Thomas Lord writes:

 > if you believe that the value in programs doesn't reside in the texts,
 > as would be protected by copyright, and given the IP issues around
 > XEmacs -- or even given your own technical ambitions --
 > 
 > why is XEmacs still derived from GNU Emacs?

Legally, I doubt it is, at least for certain very large and useful
blocks of it.  You'd have a rough time finding 16 consecutive lines
anywhere in the C code that are in any mainline version of GNU Emacs,
and I could say a similar thing for half of the core Lisp, at least.