Re: Templates and inheritance

So far, so good. Everything goes fine. But now suppose that we
change the classes AA/BB into class *templates*:

template <class T>
class AA {
public:
    class A {
    public:
        A(void) {};
    };
    virtual A getA(void) = 0;
    virtual ~AA() {};

};

template <class T, unsigned N>
class BB : public AA<T> {
public:
    class A : public AA<T>::A {
    public:
        A(void) {};
    };
    virtual AA<T>::A getA(void) { return BB::A(); };
    virtual ~BB() {};

};

BB<int,5> b;

int main()
{
    return 0;

}

Although I didn't do any other changes, I cannot compile it
(with GNU C++ 4.1.0). I receive the following errors:

And my question is: what's wrong? What mistake I'm doing here?
Or is this a compiler's bug?