Re: [PATCH] Bug fix: delete indirect buffer's window only when it exists.

[Muchenxuan Tong <demon386@gmail.com>]

Achim Gratz <Stromeko <at> nexgo.de> writes:

> 
> Muchenxuan Tong writes:
> > Bug fix: delete indirect buffer's window only when it exists.
> > * org-agenda.el (org-agenda-quit): Delete indirect buffer's window
> > only when it exists.
> 
> Introduces a new bug: when-let is not defined in GNU Emacs.
> 
> Regards,
> Achim.

Thanks for pointing out. It's my fault, when-let is defined in slime.el 
and not the Emacs core library.

The following patch should be OK:
----
Bug fix: delete indirect buffer's window only when it exists.
* org-agenda.el (org-agenda-quit): Delete indirect buffer's window
only when it exists.

When indirect buffer's window doesn't exist, the original logic will
delete the current window.

TINYCHANGE

diff --git a/lisp/org-agenda.el b/lisp/org-agenda.el
index f48ff6f..8b9ae81 100644
--- a/lisp/org-agenda.el
+++ b/lisp/org-agenda.el
@@ -6989,7 +6989,10 @@ When `org-agenda-sticky' is non-nil, only bury
the agenda."
   (interactive)
   (if (and (eq org-indirect-buffer-display 'other-window)
 	   org-last-indirect-buffer)
-      (delete-window (get-buffer-window org-last-indirect-buffer)))
+      (let ((org-last-indirect-window
+	     (get-buffer-window org-last-indirect-buffer)))
+	(if org-last-indirect-window
+	    (delete-window org-last-indirect-window))))
   (if org-agenda-columns-active
       (org-columns-quit)
     (if org-agenda-sticky