X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;ds=sidebyside;f=lisp%2Friece-shrink-buffer.el;h=69d4a0711165fe811238dd549d38c551d59d94d0;hb=cbc98a0a6da81f5782473767f5e0cc001bd37942;hp=7b78b36809d102fc5da20e6008694e15d0d13101;hpb=255cb67bb0bb83e1409d08efdad27a61ca03fdd9;p=riece

diff --git a/lisp/riece-shrink-buffer.el b/lisp/riece-shrink-buffer.el
index 7b78b36..69d4a07 100644
--- a/lisp/riece-shrink-buffer.el
+++ b/lisp/riece-shrink-buffer.el
@@ -19,8 +19,8 @@
 
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
@@ -29,6 +29,7 @@
 ;;; Code:
 
 (require 'riece-globals)
+(require 'derived)
 
 (defgroup riece-shrink-buffer nil
   "Free old IRC messages to save memory usage."
@@ -61,16 +62,13 @@
     (while buffers
       (if (and (get 'riece-shrink-buffer 'riece-addon-enabled)
 	       (buffer-live-p (car buffers))
-	       (eq (derived-mode-class
-		    (with-current-buffer (car buffers)
-		      major-mode))
-		   'riece-dialogue-mode))
+	       (with-current-buffer (car buffers)
+		 (riece-derived-mode-p 'riece-dialogue-mode)))
 	  (riece-shrink-buffer (car buffers)))
       (setq buffers (cdr buffers)))))
 
 (defun riece-shrink-buffer (buffer)
-  (save-excursion
-    (set-buffer buffer)
+  (with-current-buffer buffer
     (goto-char (point-min))
     (while (> (buffer-size) riece-max-buffer-size)
       (let* ((inhibit-read-only t)