[boost] [boost.test] Visibility problem in fixed_mapping.hpp

In my efforts to make boost.test compile with tru64cxx65 I came about the following issue. Currently, class fixed_mapping contains a private member called elem_type which is later on used in the inline definition of an operator() contained in two inline structs. class fixed_mapping { typedef ... elem_type; struct p1 : public ... { bool operator()(elem_type const &x, ...) { ... } } }; My compiler complains that elem_type is inaccessible in the definition of operator() and I think it is right to complain. I fixed this by making elem_type public, but possibly operator() could be made a friend of fixed mapping as well. Markus