Inheriting from exception

[Marco]

The following code compiles with Microsoft Visual Studio but not with
GNU (version 3.3.3 running on Linux). Is there a way to inhert from
exception in GNU?
Thanks.

#include <iostream>
#include <exception>

class Toto : public exception
{
public:
        virtual const char* what() { return "tutu";}
private:


};

int main()
{

  return 0;
}