Xcode 3.2.1. gcc 4.2 stringstream.

This classical code does not work in Xcode 3.2 (gcc 4.2).

#include <iostream>
#include <sstream>
using namespace std;

int main (int argc, char * const argv[]) 
{
    int x = 9;
       stringstream ss;
       ss << x;
       cout << "x = " << ss.str() << endl;
    
    return 0;
}

It happens only in the debug mode:

Program loaded.

run

[Switching to process 4719]

Running…

x = 

Debugger stopped.

Program exited with status value:0.

In release everything's fine:

Program loaded.

run

[Switching to process 4768]

Running…

x = 9

Debugger stopped.

Program exited with status value:0.

Here is an answer:
http://lists.apple.com/archives/xcode-users/2009/Oct/msg00616.html