Re: EMACS=t causes problems

[Chet Ramey]

> Bash 2.05b turns off line editing provided by readline/history if it
> detects the environment variable "EMACS" has the value "t".  That
> variable is set in a shell running in an emacs shell buffer.  The
> problem is that it is inherited by every process started there.  If I
> start xterm from such a shell buffer, than command line editing is
> mysteriously broken.

The original request came from Richard Stallman; reproduced below.  If
you want to debate its necessity, please take it up with him.

Chet

Date: Mon, 1 Jul 2002 08:09:45 -0600 (MDT)
Message-Id: <200207011409.g61E9jT07759@aztec.santafe.edu>
From: Richard Stallman <rms@gnu.org>
To: chet@po.cwru.edu
Subject: Turning off Readline

Emacs used to set TERM=emacs to tell subshells that they are
running under Emacs.  Bash responds by turning off Readline.

With Terminfo, using TERM=emacs does not work, so Emacs does not do
it.  So Bash fails to turn off Readline.  However, Emacs also defines
EMACS=t.  Could you make Bash check for that, too?

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
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Chet Ramey, ITS, CWRU    chet@po.cwru.edu    http://tiswww.tis.cwru.edu/~chet/