GNU bug report logs - #931
23.0.60; Bug in bytecomp.el: displaying warnings

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Message #40 received at 931 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: martin rudalics <rudalics <at> gmx.at>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>, 931 <at> debbugs.gnu.org
Cc: michael_heerdegen <at> web.de
Subject: Re: bug#931: 23.0.60; Bug in bytecomp.el: displaying warnings
Date: Wed, 10 Sep 2008 11:23:43 +0200

> +              ;; `display-buffer' usually preserves current-buffer, except
> +              ;; when it ends up doing switch-to-buffer (e.g. pop-up-windows
> +              ;; is nil).

FWIW it's set_window_buffer in

  /* We must select BUFFER for running the window-scroll-functions.
     If WINDOW is selected, switch permanently.
     Otherwise, switch but go back to the ambient buffer afterward.  */
  if (EQ (window, selected_window))
    Fset_buffer (buffer);

which is not very clean (and not documented in `set-window-buffer').

> +              (save-current-buffer
>  	      (let ((window (display-buffer buffer)))
>  		(when (and (markerp warning-series)
>  			   (eq (marker-buffer warning-series) buffer))
>  		  (set-window-start window warning-series))
> -		(sit-for 0)))))))
> +                  (sit-for 0))))))))

This will cause the *Warnings* buffer to flash shortly here and
immediately get replaced when compilation finished.

martin

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