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

[Katsumi Yamaoka]

Hi,

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".)

Thanks.

In GNU Emacs 24.4.50.1 (i686-pc-cygwin, GTK+ Version 3.10.7)
 of 2014-06-30 on localhost
Repository revision: 117445 
michael.albinus@gmx.de-20140629183235-mpcng7hg27v7yryn
Windowing system distributor `The Cygwin/X Project', version 11.0.11501000
Configured using:
 `configure --verbose --with-x-toolkit=gtk3'