delete error using >=g++4.7.2

[xunzhang]

#include <vector>
#include <string>
#include "client.h"

int main(int argc, char *argv[])
{
  Beanstalkpp::Client *pt = new Beanstalkpp::Client("beater7", 11300);
  pt->connect();
  delete pt;
  return 0; 
}

I compile the code above using 'g++-4.7.2' and get a 'Segmentation fault'. But when I use g++-4.5, the problem is gone.

What's the problem here?

[blindmatrix]

What compiler options did you use?