Index: libstdc++-v3/include/ext/pool_allocator.h
===================================================================
--- libstdc++-v3/include/ext/pool_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/pool_allocator.h	(working copy)
@@ -165,6 +165,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) _Tp(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
Index: libstdc++-v3/include/ext/bitmap_allocator.h
===================================================================
--- libstdc++-v3/include/ext/bitmap_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/bitmap_allocator.h	(working copy)
@@ -1058,6 +1058,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) value_type(__data); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
@@ -1109,4 +1115,3 @@ _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace __gnu_cxx
 
 #endif 
-
Index: libstdc++-v3/include/ext/new_allocator.h
===================================================================
--- libstdc++-v3/include/ext/new_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/new_allocator.h	(working copy)
@@ -115,6 +115,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) _Tp(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
Index: libstdc++-v3/include/ext/malloc_allocator.h
===================================================================
--- libstdc++-v3/include/ext/malloc_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/malloc_allocator.h	(working copy)
@@ -111,6 +111,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) value_type(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args) 
Index: libstdc++-v3/include/ext/array_allocator.h
===================================================================
--- libstdc++-v3/include/ext/array_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/array_allocator.h	(working copy)
@@ -79,6 +79,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) value_type(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
Index: libstdc++-v3/include/ext/mt_allocator.h
===================================================================
--- libstdc++-v3/include/ext/mt_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/mt_allocator.h	(working copy)
@@ -595,6 +595,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new((void *)__p) _Tp(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new((void *)__p) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
Index: libstdc++-v3/include/ext/extptr_allocator.h
===================================================================
--- libstdc++-v3/include/ext/extptr_allocator.h	(revision 186024)
+++ libstdc++-v3/include/ext/extptr_allocator.h	(working copy)
@@ -104,6 +104,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { ::new(__p.get()) _Tp(__val); }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      void
+      construct(pointer __p)
+      { ::new(__p.get()) _Tp(); }
+
       template<typename... _Args>
         void
         construct(pointer __p, _Args&&... __args)
Index: libstdc++-v3/include/bits/stl_list.h
===================================================================
--- libstdc++-v3/include/bits/stl_list.h	(revision 186024)
+++ libstdc++-v3/include/bits/stl_list.h	(working copy)
@@ -108,6 +108,12 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
       _Tp _M_data;
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      _List_node()
+      : __detail::_List_node_base(), _M_data()
+      { }
+
       template<typename... _Args>
         _List_node(_Args&&... __args)
 	: __detail::_List_node_base(), _M_data(std::forward<_Args>(__args)...) 
Index: libstdc++-v3/include/bits/hashtable_policy.h
===================================================================
--- libstdc++-v3/include/bits/hashtable_policy.h	(revision 186024)
+++ libstdc++-v3/include/bits/hashtable_policy.h	(working copy)
@@ -76,6 +76,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       std::size_t  _M_hash_code;
       _Hash_node*  _M_next;
 
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      _Hash_node()
+      : _M_v(),
+        _M_hash_code(), _M_next() { }
+
       template<typename... _Args>
 	_Hash_node(_Args&&... __args)
 	: _M_v(std::forward<_Args>(__args)...),
@@ -88,6 +94,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       _Value       _M_v;
       _Hash_node*  _M_next;
 
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      _Hash_node()
+      : _M_v(),
+        _M_next() { }
+
       template<typename... _Args>
 	_Hash_node(_Args&&... __args)
 	: _M_v(std::forward<_Args>(__args)...),
Index: libstdc++-v3/include/bits/forward_list.h
===================================================================
--- libstdc++-v3/include/bits/forward_list.h	(revision 186024)
+++ libstdc++-v3/include/bits/forward_list.h	(working copy)
@@ -100,6 +100,12 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
     struct _Fwd_list_node
     : public _Fwd_list_node_base
     {
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      _Fwd_list_node()
+      : _Fwd_list_node_base(),
+        _M_value() { }
+
       template<typename... _Args>
         _Fwd_list_node(_Args&&... __args)
         : _Fwd_list_node_base(), 
Index: libstdc++-v3/include/bits/stl_construct.h
===================================================================
--- libstdc++-v3/include/bits/stl_construct.h	(revision 186024)
+++ libstdc++-v3/include/bits/stl_construct.h	(working copy)
@@ -70,6 +70,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
    * object's constructor with an initializer.
    */
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+  // Work around PR52796 by avoiding 0-length parameter packs
+  // passed to constructors.
+  template<typename _T1>
+    inline void
+    _Construct(_T1* __p)
+    { ::new(static_cast<void*>(__p)) _T1(); }
+
   template<typename _T1, typename... _Args>
     inline void
     _Construct(_T1* __p, _Args&&... __args)
@@ -157,4 +164,3 @@ _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 
 #endif /* _STL_CONSTRUCT_H */
-
Index: libstdc++-v3/include/bits/stl_tree.h
===================================================================
--- libstdc++-v3/include/bits/stl_tree.h	(revision 186024)
+++ libstdc++-v3/include/bits/stl_tree.h	(working copy)
@@ -133,6 +133,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       _Val _M_value_field;
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
+      // Work around PR52796 by avoiding 0-length parameter packs
+      // passed to constructors.
+      _Rb_tree_node()
+      : _Rb_tree_node_base(),
+        _M_value_field() { }
+
       template<typename... _Args>
         _Rb_tree_node(_Args&&... __args)
 	: _Rb_tree_node_base(),
Index: libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/assign_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/assign_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/assign_neg.cc	(working copy)
@@ -1,6 +1,6 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x" }
-// { dg-error "no matching" "" { target *-*-* } 1206 }
+// { dg-error "no matching" "" { target *-*-* } 1212 }
 // { dg-excess-errors "" }
 
 // Copyright (C) 2009, 2010 Free Software Foundation
Index: libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/insert_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/insert_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/insert_neg.cc	(working copy)
@@ -1,6 +1,6 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x" }
-// { dg-error "no matching" "" { target *-*-* } 1206 }
+// { dg-error "no matching" "" { target *-*-* } 1212 }
 // { dg-excess-errors "" }
 
 // Copyright (C) 2009, 2010, 2011 Free Software Foundation
Index: libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_1_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_1_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_1_neg.cc	(working copy)
@@ -1,6 +1,6 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x" }
-// { dg-error "no matching" "" { target *-*-* } 1206 }
+// { dg-error "no matching" "" { target *-*-* } 1212 }
 // { dg-excess-errors "" }
 
 // Copyright (C) 2009, 2010, 2011 Free Software Foundation
Index: libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_2_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_2_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/forward_list/requirements/dr438/constructor_2_neg.cc	(working copy)
@@ -1,6 +1,6 @@
 // { dg-do compile }
 // { dg-options "-std=gnu++0x" }
-// { dg-error "no matching" "" { target *-*-* } 1206 }
+// { dg-error "no matching" "" { target *-*-* } 1212 }
 // { dg-excess-errors "" }
 
 // Copyright (C) 2009, 2010, 2011 Free Software Foundation
Index: libstdc++-v3/testsuite/23_containers/list/requirements/dr438/assign_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/list/requirements/dr438/assign_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/list/requirements/dr438/assign_neg.cc	(working copy)
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile }
-// { dg-error "no matching" "" { target *-*-* } 1491 }
+// { dg-error "no matching" "" { target *-*-* } 1497 }
 // { dg-excess-errors "" }
 
 #include <list>
Index: libstdc++-v3/testsuite/23_containers/list/requirements/dr438/insert_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/list/requirements/dr438/insert_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/list/requirements/dr438/insert_neg.cc	(working copy)
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile }
-// { dg-error "no matching" "" { target *-*-* } 1447 }
+// { dg-error "no matching" "" { target *-*-* } 1453 }
 // { dg-excess-errors "" }
 
 #include <list>
Index: libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc	(working copy)
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile }
-// { dg-error "no matching" "" { target *-*-* } 1447 }
+// { dg-error "no matching" "" { target *-*-* } 1453 }
 // { dg-excess-errors "" }
 
 #include <list>
Index: libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc
===================================================================
--- libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc	(revision 186024)
+++ libstdc++-v3/testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc	(working copy)
@@ -18,7 +18,7 @@
 // <http://www.gnu.org/licenses/>.
 
 // { dg-do compile }
-// { dg-error "no matching" "" { target *-*-* } 1447 }
+// { dg-error "no matching" "" { target *-*-* } 1453 }
 // { dg-excess-errors "" }
 
 #include <list>
