Subject: bug#13837: 24.2; Make it possible to turn whitespace-mode only when there are no existing problems

From: Stefan Monnier <[email-masked]>
Date: Sun, 03 Mar 2013 18:36:03 -0500

> This was a bit of code you suggested putting in my .emacs, not
> patching whitespace.el.  If possible, I'd like something I can use
> today with Emacs 24.

You already have "something I can use today with Emacs 24" and by
definition whatever we change in trunk won't really help you if you need
it to work in older Emacsen.

        Stefan