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From: barmar@think.com (Barry Margolin)
Newsgroups: comp.emacs
Subject: Re: op. not supported on socket?? :-(
Message-ID: <1990Dec7.182344.24454@Think.COM>
Date: 7 Dec 90 18:23:44 GMT
References: <SHAWN.90Dec6145808@litsun8.litsun.epfl.edu>
Sender: news@Think.COM
Distribution: comp
Organization: Thinking Machines Corporation, Cambridge MA, USA
Lines: 26

In article <SHAWN.90Dec6145808@litsun8.litsun.epfl.edu> shawn@litsun.epfl.ch writes:
>The problem is that I get a message when I do this
>prepended onto the top of the uncompressed file
>that says: "stty: Operation not supported on socket"

This sounds like a relative of the imfamous "not a tty" error message that
some programs randomly generate.

I presume you run uncompress in a subshell.  The problem is probably that
your .cshrc issues the "stty" command, even though its stdin and stdout
aren't connected to a terminal (they're connected to the pipe that Emacs is
using).

Your .cshrc should check $prompt before doing such commands.  $prompt is
only set in interactive shells, not in subshells that are spawned just to
invoke a single command line.  It should look something like:

if ( $?prompt ) then
	stty ...
	<other interactive-only commands>
endif
--
Barry Margolin, Thinking Machines Corp.

barmar@think.com
{uunet,harvard}!think!barmar