(gud-display-line): Don't set window-point if

source buffer is not visible. (Only happens with M-x gdba).

1 files changed, 7 insertions, 9 deletions

diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
index 349c78ce3d2..e99fb26cf07 100644
--- a/lisp/progmodes/gud.el
+++ b/lisp/progmodes/gud.el
@@ -2524,26 +2524,24 @@ Obeying it means displaying in another window the specified file and line."
     (if buffer
         (progn
           (with-current-buffer buffer
-            (if (not (or (verify-visited-file-modtime buffer) gud-keep-buffer))
-                (progn
-                  (if
-                      (yes-or-no-p
+            (unless (or (verify-visited-file-modtime buffer) gud-keep-buffer)
+                  (if (yes-or-no-p
                        (format "File %s changed on disk.  Reread from disk? "
                                (buffer-name)))
                       (revert-buffer t t)
-                    (setq gud-keep-buffer t))))
+                    (setq gud-keep-buffer t)))
             (save-restriction
               (widen)
               (goto-line line)
               (setq pos (point))
               (setq overlay-arrow-string "=>")
               (or overlay-arrow-position
-              (setq overlay-arrow-position (make-marker)))
+                  (setq overlay-arrow-position (make-marker)))
               (set-marker overlay-arrow-position (point) (current-buffer)))
             (cond ((or (< pos (point-min)) (> pos (point-max)))
-            (widen)
-            (goto-char pos))))
-          (set-window-point window overlay-arrow-position)))))
+                   (widen)
+                   (goto-char pos))))
+          (if window (set-window-point window overlay-arrow-position))))))
 
 ;; The gud-call function must do the right thing whether its invoking
 ;; keystroke is from the GUD buffer itself (via major-mode binding)