struct test
{
   /* Both should be fontified as bitfields; currently, only the former
is */
   int bf1:5;
   unsigned bf2:5;
};


@@ -5575,7 +5656,9 @@
 		  ;; a valid label.  Otherwise the last one probably is the
 		  ;; declared identifier and we should back up to the previous
 		  ;; type, providing it isn't a cast.
-		  (if (eq (char-after) ?:)
+		  (if (and (eq (char-after) ?:)
+                           (not (and (eq backup-at-type 'prefix)
+                                     (eq at-type 'maybe))))
 		      ;; If we've found a specifier keyword then it's a
 		      ;; declaration regardless.
 		      (throw 'at-decl-or-cast (eq at-decl-or-cast t))