re PR c++/61134 ([C++11] bogus "no matching function for call...")

	PR c++/61134
	* pt.c (pack_deducible_p): Handle canonicalization.

From-SVN: r211159

gcc/cp/ChangeLog

+2014-06-02  Jason Merrill  <jason@redhat.com>
+
+	PR c++/61134
+	* pt.c (pack_deducible_p): Handle canonicalization.
+
 2014-06-02  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* pt.c (tsubst_function_type): Initialize arg_types.

gcc/cp/pt.c

@@ -15765,7 +15765,7 @@ pack_deducible_p (tree parm, tree fn)
 	continue;
       for (packs = PACK_EXPANSION_PARAMETER_PACKS (type);
 	   packs; packs = TREE_CHAIN (packs))
-	if (TREE_VALUE (packs) == parm)
+	if (template_args_equal (TREE_VALUE (packs), parm))
 	  {
 	    /* The template parameter pack is used in a function parameter
 	       pack.  If this is the end of the parameter list, the

gcc/testsuite/g++.dg/cpp0x/variadic158.C

+// PR c++/61134
+// { dg-do compile { target c++11 } }
+
+struct Base { };
+
+template <typename>
+struct Fixed {
+  typedef const char* name;
+};
+
+template <typename VT, typename... Fields>
+void New(const char* name,
+         typename Fixed<Fields>::name... field_names);
+
+template <typename VT, typename... Fields>
+void CreateMetric(const char* name,
+                  typename Fixed<Fields>::name... field_names,
+                  const Base&) { }
+
+
+void Fn()
+{
+  CreateMetric<int, const char*>("abcd", "def", Base());
+}