Undo discard prompt (was: [T. V. Raman] read-only modes should be using buffer-disable-undo?)

[T. V. Raman]

Agreed visavis that dialog --- was planning to right myself a private
piece of advice to disable that annoyance, though getting it out of
the way by default would be much better for all users in my
opinion. The only virtue of that dialog box is that it did help us
spot where emacs was GC-ing perhaps unnecessarily. 
Incidentally, Info-mode might be another canditate for temporarily
disabling undo.

 >>>>> "Stefan" == Stefan Monnier <address@hidden> writes:

    >> however the recent updates in simple.el that cause the yes/no
    >> dialog to ask about discarding undo information does pop up in
    >> shell-mode ---

    Stefan> BTW, I just wanted to say that since this undo-discard
    Stefan> prompt was introduced I've bumped into it also in "normal"
    Stefan> circumstances (just manual buffer editing) and have found
    Stefan> it to be just really annoying (half the time it occurred
    Stefan> in the middle of some kbd-macro and breaks the sequence of
    Stefan> steps).

    Stefan> I vote to replace the prompt with a warning.

    Stefan> Or even to just revert to the 21.3 behavior (I haven't
    Stefan> actually seen anyone really complain about that good ol'
    Stefan> behavior.  What was wrong with it?).


    Stefan>         Stefan

-- 
Best Regards,
--raman

      
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