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Subject: Re: emacs 24.3.1: output from async-shell-command is not always displayed
References: <86zjhbpf9b DOT fsf AT w2139spb DOT ru DOT yotateam DOT com>	<53A0EF03 DOT 8060001 AT cornell DOT edu>	<86lhsupj6c DOT fsf AT w2139spb DOT ru DOT yotateam DOT com>
From: ht AT inf DOT ed DOT ac DOT uk (Henry S. Thompson)
Date: Wed, 18 Jun 2014 14:36:40 +0100
In-Reply-To: <86lhsupj6c.fsf@w2139spb.ru.yotateam.com> (Filipp Gunbin's message of "Wed\, 18 Jun 2014 15\:10\:35 +0400")
Message-ID: <f5b4mzigx07.fsf@troutbeck.inf.ed.ac.uk>
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Filipp Gunbin writes:

> When I call such a script (catalina.sh, for example), its output is
> displayed in *Asynchronous Shell Command*, but the program starting from
> it with & (java usually) is not started (or started and killed
> immediately).  I supposed that maybe it's killed when the parent process
> finishes.  From looking at lisp code of async-shell-command I can't see
> anything which differs from shell-command in this way.  I tried to
> narrow the problem and got the case I've posted here initially, but now
> I think those could be different problems.

This sounds very much like it _may_ be the same problem as discussed
(at inconclusive length, sorry!) wrt xemacs in this thread:

  http://lists.xemacs.org/pipermail/xemacs-beta/2014-January/024736.html

I've burned a lot of midnight oil on that one, with no real joy as
yet.

At the very least it does seem like there was some change in
Cygwin pty/signal area some time back which affects the way emacsen
try to communicate with sub-processes. . .

ht
-- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 650-4587, e-mail: ht AT inf DOT ed DOT ac DOT uk
                       URL: http://www.ltg.ed.ac.uk/~ht/
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