Didn't need that new constructor after all.

obj/Ref.h

@@ -9,7 +9,6 @@ All rights reserved.  Please see niflib.h for licence. */
  */
 template <class T> class Ref {
 public:
-	Ref();
 	Ref( T * object = NULL );
 	Ref(const Ref & ref_to_copy );
 	~Ref();
@@ -33,9 +32,6 @@ protected:
 	T* _object;
 };
 
-template <class T>
-Ref<T>::Ref() : _object(NULL) {}
-
 template <class T>
 Ref<T>::Ref( T * object ) : _object(object) {}