GCC 3.0 / empty base class optimization

[Helmut Zeisel]

"c++ mytest.cpp; a.out" compiled with GCC 3.0 / Linux crashes.
"c++ -DNONEMPTY mytest.cpp; a.out" works.

This seems to be a bug w.r.t. the empty base class optimization.

Helmut

class empty_base
{
#ifdef NONEMPTY
  int i;
#endif
};

template <class T, class B = empty_base>
struct multipliable1 : B
{
     friend T operator*(T x, const T& y) { return x *= y; }
};

class A : multipliable1<A >
{
public:
  A(int n) {m_v.push_back(0);}

  A& operator*=(const A& other) {return *this;}
private:
  std::vector<int> m_v;
};


int main()
{ 
  A a(1);   
  A(1)*A(1);
  a=1;
  return 0;
}