Compile error with gcc 4.1.1

["Patricio, Mario" <mario.patricio@xxxxxxx>]

Hi,

I have the following code:

file1.h

template <class T> class a;

template <class T> class b
{
  friend class a<T>;

public:
  b() {}
};


template <class T> class c;

template <class T> class a
{
  friend class c<T>;

...

file2.h

#include "file1.h"

class d : public b<d> {}

And I am getting the following error in this last line (using gcc 4.1.1):

error: expected template-name before '<' token
error: expected `{' before '<' token
error: expected unqualified-id before '<' token

This code was working with gcc 3.3.5.

Can you give me an ideia how to correct this?????


Thank you and best regards

Mário Patricio