*** boost/iterator/iterator_adaptor.hpp
--- boost/iterator/iterator_adaptor.hpp
***************
*** 303,308 ****
        // base_reference(), above, to get direct access to m_iterator.
        // 
!       typename super_t::reference dereference() const
!         { return *m_iterator; }
  
        template <
--- 303,307 ----
        // base_reference(), above, to get direct access to m_iterator.
        // 
!       typename super_t::reference dereference() const;
  
        template <