diff options
Diffstat (limited to 'lisp/emacs-lisp/debug.el')
| -rw-r--r-- | lisp/emacs-lisp/debug.el | 6 |
1 files changed, 4 insertions, 2 deletions
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 |