g++ Compilation problem with implicitly declared copy constructor

Issue

The following C++ example will not compile on any gcc version:

class noncopyable {
   public:
      noncopyable() {}
      ~noncopyable() {}
   private:
      noncopyable( const noncopyable& );
      const noncopyable& operator=( const noncopyable& );
};

class Foo : public noncopyable {
   public:
      Foo () {}
};

static Foo func1() { 
      return Foo();
}

int main() {
      func1();
      return 0;
}

Compiling the example above with g++ will give the following error:

test2.cpp: In copy constructor ‘Foo::Foo(const Foo&)’:
test2.cpp:9: error: ‘noncopyable::noncopyable(const noncopyable&)’ is private
test2.cpp:15: error: within this context
test2.cpp: In function ‘Foo func1()’:
test2.cpp:24: note: synthesized method ‘Foo::Foo(const Foo&)’ first required here