bug#17881: 24.4.50; decoding by emacs-mule hangs up

[Eli Zaretskii]

> Date: Mon, 30 Jun 2014 14:10:25 +0400
> From: Dmitry Antipov <dmantipov@yandex.ru>
> Cc: Katsumi Yamaoka <yamaoka@jpl.org>
> 
> On 06/30/2014 12:27 PM, Katsumi Yamaoka wrote:
> 
> > Recently an old program that uses the `emacs-mule' coding system
> > hangs up.  Encoding seems ok, but decoding doesn't seem to return.
> > To reproduce this, please try:
> >
> > (decode-coding-string "\222\244\242" 'emacs-mule)
> >
> > This should return the Japanese letter "あ".
> > (Worse, killing the Emacs process is the only way to stop it on
> >   Cygwin because of bug#14553 -- "C-g doesn't break inf-loop".)
> 
> Quick bisection shows that this was introduced in r117432.

Fixed in trunk revision 117451.