🚀 go-pugleaf

I believe the following exhibits a bug in g++:

================================== bug.cc =====================================
#include <iostream.h>

class Type {
public:
  virtual void Print() = 0;
  };

class Port : public Type {
public:
  short flagBits;
#ifndef BUG
  virtual void Print()  = 0;
#endif
  };

class PortOut : public ostream, public Port {
public:
  PortOut(int fd) {init(new filebuf(fd));}
  PortOut &operator<<(Type *p) {p->Print(); return *this;}
  virtual void Print() {cout << "PortOut fn" << endl;}
  };

PortOut& operator<<(PortOut& p, const Type &bt);

main() {
  PortOut po(1);
  Type *t = &po;
  po << t;
  }
=================================================================================


Compiled with:

   g++ -g bug.cc -o bug
   ./bug

works correctly.

Compiled with:

   g++ -DBUG -g bug.cc -o bug
   ./bug

dumps core.

If this is not a bug, could you let me know what I am doing wrong.

Thanks,
Dick