GNU bug report logs - #8857
display-buffer attempt to pop-up frame in batch mode causes "Unknown terminal type" error

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From: martin rudalics <rudalics <at> gmx.at>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 8857 <at> debbugs.gnu.org
Subject: bug#8857: display-buffer attempt to pop-up frame in batch mode causes	"Unknown terminal type" error
Date: Tue, 14 Jun 2011 19:14:47 +0200

>> Can you tell me where and why `display-buffer' is called?
>
> I don't know. From `find-file' I guess. I noticed because of this:
>
> http://lists.gnu.org/archive/html/emacs-buildstatus/2011-06/msg00004.html
>
> (which was due to custom-make-dependencies leaving files on the
> command-line so they were processed as normal file arguments)

I see.  But I wonder why this wasn't a problem before (that is, the idea
of popping up a new frame).

> Maybe display-buffer should just be a no-op in batch-mode, since it's
> impossible (?) to display anything then (except via the echo area).
>
> (defun display-buffer () ""
>  (unless noninteractive
>    ...))

That would be trivial to do.

martin

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