--- a/src/frameslots.h	Mon Aug 13 11:33:40 2007 +0200
+++ b/src/frameslots.h	Mon Aug 13 11:35:02 2007 +0200
@@ -84,6 +84,9 @@
   /* frame property list */
   MARKED_SLOT (plist);
 
+  /* buffer_alist at last redisplay. */
+  MARKED_SLOT (old_buffer_alist);
+
   /* A copy of the global Vbuffer_list, to maintain a per-frame buffer
      ordering.  The Vbuffer_list variable and the buffer_list slot of each
      frame contain exactly the same data, just in different orders.  */
@@ -142,6 +145,9 @@
   MARKED_SLOT_ARRAY (toolbar_border_width, 4);
 #endif
 
+/* Cache of subwindow instances for this frame */
+  MARKED_SLOT (subwindow_instance_cache);
+
   /* Possible frame-local default for outside margin widths. */
   MARKED_SLOT (left_margin_width);
   MARKED_SLOT (right_margin_width);