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Subject: Re: No calc in pretest?
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On 02 Jul 2002 22:46:36 +0100, Jason Rumney <jasonr@gnu.org> wrote:

> Even better, test for features, not for version numbers.

Sure, but what when you need to detect a change in some interface? (For
example, that a function now admits a few more arguments). There's no
feature there.

Sometimes you just need to know the release, or do fancy tricks like

(require 'cl)
(unless (ignore-errors (whatever-func 1 2 3) t)
  (whatever-func 1 2))


                                                           /L/e/k/t/u