bug#27016: possible bug in `defsetf'

[Rafael D Sorkin]

 > I would rather try something like
 > 
 > #+begin_src emacs-lisp
 > (unless t
 >   (eval '(progn (defalias 'foobar 'cons)
 >                 (defsetf foobar setcar))))
 > #+end_src
 > 
 > to avoid the eager macro expansion unless the code is actually run.

That looks like it would have to work.  I will keep it mind in
case of future need.  Thanks.

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 Rafael Sorkin
 Perimeter Institute for Theoretical Physics
 31 Caroline Street North
 Waterloo, ON  N2L 2Y5
 Canada
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