bug#5811: 23.1.94; Emacs Nextstep port crashes after graphical yes-or-no-p

[Chong Yidong]

Adrian Robert <adrian.b.robert@gmail.com> writes:

> This is roughly what it seemed to be.  Here is a patch that fixes this
> issue for me running 10.6.2 64-bit.  (I tried to look for other
> problems of this sort in the source but did not find any -- though
> that doesn't mean they don't exist!)

Please go ahead and check this in.  Thanks.