Index: gcc/cp/typeck.c
===================================================================
--- gcc/cp/typeck.c	(revision 366)
+++ gcc/cp/typeck.c	(working copy)
@@ -1090,6 +1090,9 @@
 	return false;
       break;
 
+    case PACK_UNPACK_TYPE:
+      return same_type_p (PACK_UNPACK_PATTERN (t1), PACK_UNPACK_PATTERN (t2));
+
     default:
       return false;
     }
Index: gcc/cp/pt.c
===================================================================
--- gcc/cp/pt.c	(revision 366)
+++ gcc/cp/pt.c	(working copy)
@@ -4592,6 +4592,10 @@
   if (TREE_CODE (nt) == TREE_VEC)
     /* For member templates */
     return TREE_CODE (ot) == TREE_VEC && comp_template_args (ot, nt);
+  else if (PACK_UNPACK_P (ot))
+    return PACK_UNPACK_P (nt) 
+      && template_args_equal (PACK_UNPACK_PATTERN (ot),
+                              PACK_UNPACK_PATTERN (nt));
   else if (TYPE_P (nt))
     return TYPE_P (ot) && same_type_p (ot, nt);
   else if (TREE_CODE (ot) == TREE_VEC || TYPE_P (ot))