libstdc++/94: Friends and Namespaces

[joe_hesse@actcx.com]

>Number:         94
>Category:       libstdc++
>Synopsis:       Friends and Namespaces
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 05 07:17:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Joseph Hesse
>Release:        gcc 2.95.??
>Organization:
>Environment:
RH Linux 6.2
>Description:
The following code with friends and namespaces doesn't compile with gcc -c test.cpp
The code seems ok to me and it does compile with no errors using the Comeau compiler.
>How-To-Repeat:
Just compile and observe the error output
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="test.cpp"
Content-Disposition: inline; filename="test.cpp"

Does anyone know of an easy fix to make the following compile with g++.
I think that the code is correct but it fails to compile with g++.
The error messages are:

test.cpp:10: parse error before `('
test.cpp: In function `void f()':
test.cpp:7: `int N::XYZ::m_x' is private
test.cpp:17: within this context

The code compiles with the online Comeau compiler.

-----------------------------------------------
void f();

namespace N {

class XYZ {
private:
  int m_x;
public:
  XYZ(int u = 0) : m_x(u) {}
  friend void ::f();
};

}  // end of namespace N

void f() {
  N::XYZ a(10);
  a.m_x = 11;
}
-----------------------------------------------