diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 9e27c7632c60..6522c25999ea 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2013-04-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/56834
+	* include/debug/array (tuple_size, tuple_element): Do not declare.
+	* include/profile/array: Likewise.
+	* testsuite/23_containers/array/tuple_interface/
+	tuple_element_debug_neg.cc: Adjust dg-error line number.
+
 2013-04-03  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	* libsupc++/exception (get_terminate(), get_unexpected()): Declare.
diff --git a/libstdc++-v3/include/debug/array b/libstdc++-v3/include/debug/array
index 734eeaded726..bce10cf3f120 100644
--- a/libstdc++-v3/include/debug/array
+++ b/libstdc++-v3/include/debug/array
@@ -289,17 +289,11 @@ namespace __debug
   // Tuple interface to class template array.
 
   /// tuple_size
-  template<typename _Tp> 
-    class tuple_size;
-
   template<typename _Tp, std::size_t _Nm>
     struct tuple_size<__debug::array<_Tp, _Nm>>
     : public integral_constant<std::size_t, _Nm> { };
 
   /// tuple_element
-  template<std::size_t _Int, typename _Tp>
-    class tuple_element;
-
   template<std::size_t _Int, typename _Tp, std::size_t _Nm>
     struct tuple_element<_Int, __debug::array<_Tp, _Nm>>
     {
diff --git a/libstdc++-v3/include/profile/array b/libstdc++-v3/include/profile/array
index 4313fd2d5a37..bd6da6ca3960 100644
--- a/libstdc++-v3/include/profile/array
+++ b/libstdc++-v3/include/profile/array
@@ -251,17 +251,11 @@ namespace __profile
   // Tuple interface to class template array.
 
   /// tuple_size
-  template<typename _Tp> 
-    class tuple_size;
-
   template<typename _Tp, std::size_t _Nm>
     struct tuple_size<__profile::array<_Tp, _Nm>>
     : public integral_constant<std::size_t, _Nm> { };
 
   /// tuple_element
-  template<std::size_t _Int, typename _Tp>
-    class tuple_element;
-
   template<std::size_t _Int, typename _Tp, std::size_t _Nm>
     struct tuple_element<_Int, __profile::array<_Tp, _Nm>>
     {
diff --git a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
index 3e5ec1edb224..76ea230b14e8 100644
--- a/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
+++ b/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_debug_neg.cc
@@ -23,4 +23,4 @@
 
 typedef std::tuple_element<1, std::array<int, 1>>::type type;
 
-// { dg-error "static assertion failed" "" { target *-*-* } 306 }
+// { dg-error "static assertion failed" "" { target *-*-* } 300 }