Re: Emacs contributions, C and Lisp

[Richard Stallman]

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  >   But I don't think we can terminally avoid dealing
  > with the fact that we cannot achieve interoperation between separate
  > free software applications without enabling interoperation with separate
  > nonfree software that does not trigger copyright.

That is not valid as a general principle.
Here's one very clear example to show that.

It is perfectly legal to staticly link GCC and GNU Emacs and
distribute the resulting binary, since they are both available under
GPLv3.  However, linking with nonfree software in that same way
would be a violation.

The issues about plug-ins are more complicated and more specipic than
that putative principle would suggest.

-- 
Dr Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org  www.gnu.org
Skype: No way! That's nonfree (freedom-denying) software.
  Use Ekiga or an ordinary phone call.