Re: inaccessible base despite public inheritance

I have the following header file (named test.h):

class Foo
{
public:
Foo(void) {}
virtual ~Foo(void) {}
};

class Bar : public Foo
{
public:
Bar(void) {}
virtual ~Bar(void) {}
};

with a very simple cpp file:

#include "test.h"

int main() {
Foo* f = new Bar();
}

This compiles with Visual Studio 2005, but with g++ 4.1.1 I get an
error:

bash-3.00$ test.cpp:4: error: Foo is an inaccessible base of Bar

Acutally, I know that this error message occurs when doing something
like "class Bar : private Foo" (i.e. inherit the code but withouth
polymorphism). But I obviously declared to use public inheritance.
Does anybody see the problem?