>>>>> On Thu, 15 Jul 2004 09:17:36 -0400, Richard Stallman <rms@gnu.org> said:

>> with Yoichi's response (together with a test case that I can
>> reproduce: C-g on OS X cannot recover from evaling any of the
>> following three:

>> 1. (condition-case nil (while 1) (error (error "catch error"))
>> (quit (error "catch quit")))
>> 2. (condition-case nil (while 1) (error (error "catch error")))
>> 3. (while 1)

> It sounds like the mechanism for detecting C-g may need a redesign.
> Is there any Lisp program you can successfully interrupt with C-g?

That problem was mentioned three months ago, but maybe obscured by
other urgent problems.

http://lists.gnu.org/archive/html/emacs-devel/2004-04/msg00783.html
http://lists.gnu.org/archive/html/emacs-devel/2004-04/msg01072.html

The attached is a patch for the latest CVS.  With this patch, all the
above examples can be quit by C-g on OS X (Carbon).

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp