Index: dmemcache.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/memcache/dmemcache.inc,v
retrieving revision 1.1.2.7.2.18
diff -u -p -r1.1.2.7.2.18 dmemcache.inc
--- dmemcache.inc	29 Sep 2010 11:23:01 -0000	1.1.2.7.2.18
+++ dmemcache.inc	29 Sep 2010 12:01:40 -0000
@@ -278,6 +278,8 @@ function dmemcache_object($bin = NULL, $
         $memcache = new Memcache;
       }
       else {
+        // We're not using t() here because it is sometimes unavailable. See http://drupal.org/node/921506
+        // and also http://drupal.org/node/852794
         drupal_set_message('You must enable the PECL memcached or memcache extension to use memcache.inc.', 'error');
         return;
       }