Re: Do we need C's extern in Emacs Lisp?

[Richard Stallman]

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  > Currently we do not have any equivalent in Lisp.  For example, if

  >     (defvar foo)

  > is in a Lisp file, then subsequent use of foo will generate an unknown
  > variable warning.

Could you describe the scenario more clearly?  What sort of use, and where?
The reason I ask is that details would affect whether we judge
that the actual behavior is problematical or helpful.

  > I think it would be useful to have some sort of "extern" facility in our
  > Lisp.

This raises some questions:

1. How would you envision using it?

2. What would we do currently?

3. What would be the advantage of using the new construct instead?

W
-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)