From bb7b23c5cbd0659a9e913ea4c4642bffe83541ef Mon Sep 17 00:00:00 2001 From: Martin Rudalics Date: Sun, 22 Mar 2015 12:40:21 +0100 Subject: In `debug' don't try using window on inaccessible frame (Bug#17170). * emacs-lisp/debug.el (debug): Don't try using "previous" window when its not live or on an invisible frame (Bug#17170). --- lisp/emacs-lisp/debug.el | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lisp/emacs-lisp/debug.el') diff --git a/lisp/emacs-lisp/debug.el b/lisp/emacs-lisp/debug.el index dc0e666836e..38befeece45 100644 --- a/lisp/emacs-lisp/debug.el +++ b/lisp/emacs-lisp/debug.el @@ -193,8 +193,10 @@ first will be printed into the backtrace buffer." debugger-buffer `((display-buffer-reuse-window display-buffer-in-previous-window) - . (,(when debugger-previous-window - `(previous-window . ,debugger-previous-window))))) + . (,(when (and (window-live-p debugger-previous-window) + (frame-visible-p + (window-frame debugger-previous-window))) + `(previous-window . ,debugger-previous-window))))) (setq debugger-window (selected-window)) (if (eq debugger-previous-window debugger-window) (when debugger-jumping-flag -- cgit v1.2.3