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bug#8857: display-buffer attempt to pop-up frame in batch mode causes "U


From: Glenn Morris
Subject: bug#8857: display-buffer attempt to pop-up frame in batch mode causes "Unknown terminal type" error
Date: Wed, 15 Jun 2011 15:40:31 -0400
User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)

Stefan Monnier wrote:

> "batch mode" and "server mode" are *very* closely related.  So I'd stay
> away from any attempt to special case "batch mode".

FWIW, `noninteractive' is nil in "server mode" (ie --daemon) but t in
"batch mode", so the two cases are easily distinguished.

Since emacs.c has:

  if (!noninteractive)
    init_display ();    /* Determine terminal type.  Calls init_sys_modes.  */

I've gone back to thinking that display-buffer can do nothing useful in
batch mode.





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