Index: libs/python/src/dict.cpp
===================================================================
--- libs/python/src/dict.cpp.orig
+++ libs/python/src/dict.cpp
@@ -28,9 +28,9 @@ namespace
 
 detail::new_reference dict_base::call(object const& arg_)
 {
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyDict_Type };
     return (detail::new_reference)PyObject_CallFunction(
-        (PyObject*)&PyDict_Type, const_cast<char*>("(O)"), 
-        arg_.ptr());
+        pun.pop, const_cast<char*>("(O)"), arg_.ptr());
 }
 
 dict_base::dict_base()
Index: libs/python/src/list.cpp
===================================================================
--- libs/python/src/list.cpp.orig
+++ libs/python/src/list.cpp
@@ -10,11 +10,11 @@ namespace boost { namespace python { nam
 
 detail::new_non_null_reference list_base::call(object const& arg_)
 {
+    union{ PyTypeObject *ptop; PyObject *pop; }pun = { &PyList_Type };
     return (detail::new_non_null_reference)
         (expect_non_null)(
             PyObject_CallFunction(
-                (PyObject*)&PyList_Type, const_cast<char*>("(O)"), 
-                arg_.ptr()));
+                pun.pop, const_cast<char*>("(O)"), arg_.ptr()));
 }
 
 list_base::list_base()
Index: libs/python/src/long.cpp
===================================================================
--- libs/python/src/long.cpp.orig
+++ libs/python/src/long.cpp
@@ -8,16 +8,16 @@ namespace boost { namespace python { nam
 
 new_reference long_base::call(object const& arg_)
 {
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyLong_Type };
     return (detail::new_reference)PyObject_CallFunction(
-        (PyObject*)&PyLong_Type, const_cast<char*>("(O)"), 
-        arg_.ptr());
+        pun.pop, const_cast<char*>("(O)"), arg_.ptr());
 }
 
 new_reference long_base::call(object const& arg_, object const& base)
 {
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyLong_Type };
     return (detail::new_reference)PyObject_CallFunction(
-        (PyObject*)&PyLong_Type, const_cast<char*>("(OO)"), 
-        arg_.ptr(), base.ptr());
+        pun.pop, const_cast<char*>("(OO)"), arg_.ptr(), base.ptr());
 }
 
 long_base::long_base()
@@ -25,7 +25,12 @@ long_base::long_base()
         detail::new_reference(
             PyObject_CallFunction((PyObject*)&PyLong_Type, const_cast<char*>("()")))
         )
-{}
+{
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyLong_Type };
+    object(detail::new_reference(
+            PyObject_CallFunction(pun.pop, const_cast<char*>("()"))));
+}
+
 
 long_base::long_base(object_cref arg)
     : object(long_base::call(arg))
Index: libs/python/src/object/class.cpp
===================================================================
--- libs/python/src/object/class.cpp.orig
+++ libs/python/src/object/class.cpp
@@ -612,9 +612,11 @@ namespace objects
   void class_base::add_property(
     char const* name, object const& fget, char const* docstr)
   {
+      union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyProperty_Type };
+
       object property(
           (python::detail::new_reference)
-          PyObject_CallFunction((PyObject*)&PyProperty_Type, const_cast<char*>("Osss"), fget.ptr(), (char*)NULL, (char*)NULL, docstr));
+          PyObject_CallFunction(pun.pop, const_cast<char*>("Osss"), fget.ptr(), (char*)NULL, (char*)NULL, docstr));
       
       this->setattr(name, property);
   }
@@ -622,9 +624,11 @@ namespace objects
   void class_base::add_property(
     char const* name, object const& fget, object const& fset, char const* docstr)
   {
+      union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyProperty_Type };
+
       object property(
           (python::detail::new_reference)
-          PyObject_CallFunction((PyObject*)&PyProperty_Type, const_cast<char*>("OOss"), fget.ptr(), fset.ptr(), (char*)NULL, docstr));
+          PyObject_CallFunction(pun.pop, const_cast<char*>("OOss"), fget.ptr(), fset.ptr(), (char*)NULL, docstr));
       
       this->setattr(name, property);
   }
Index: libs/python/src/str.cpp
===================================================================
--- libs/python/src/str.cpp.orig
+++ libs/python/src/str.cpp
@@ -9,14 +9,14 @@ namespace boost { namespace python { nam
 
 detail::new_reference str_base::call(object const& arg_)
 {
-    return (detail::new_reference)PyObject_CallFunction(
 #if PY_VERSION_HEX >= 0x03000000
-        (PyObject*)&PyUnicode_Type,
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyUnicode_Type };
 #else
-        (PyObject*)&PyString_Type, 
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyString_Type };
 #endif
-        const_cast<char*>("(O)"), 
-        arg_.ptr());
+
+    return (detail::new_reference)PyObject_CallFunction(
+        pun.pop, const_cast<char*>("(O)"), arg_.ptr());
 } 
 
 str_base::str_base()
Index: libs/python/src/tuple.cpp
===================================================================
--- libs/python/src/tuple.cpp.orig
+++ libs/python/src/tuple.cpp
@@ -8,9 +8,10 @@ namespace boost { namespace python { nam
 
 detail::new_reference tuple_base::call(object const& arg_)
 {
+    union { PyTypeObject *ptop; PyObject *pop; }pun = { &PyTuple_Type };
+
     return (detail::new_reference)PyObject_CallFunction(
-        (PyObject*)&PyTuple_Type, const_cast<char*>("(O)"), 
-        arg_.ptr());
+        pun.pop, const_cast<char*>("(O)"), arg_.ptr());
 }
     
 tuple_base::tuple_base()