ler. */
       rl_callback_handler_install (prompt, cb_linehandler);

       /* Enter a simple event loop.  This waits until something is available
          to read on readline's input stream (defaults to standard input) and
          calls the builtin character read callback to read it.  It does not
          have to modify the user's terminal settings. */
       running = 1;
       while (running)
         {
           FD_ZERO (&fds);
           FD_SET (fileno (rl_instream), &fds);

           r = select (FD_SETSIZE, &fds, NULL, NULL, NULL);
           if (r < 0 && errno != EINTR)
             {
               perror ("rltest: select");
               rl_callback_handler_remove ();
               break;
             }
           if (sigwinch_received)
     	{
     	  rl_resize_terminal ();
     	  sigwinch_received = 0;
     	}
           if (r < 0)
     	continue;

           if (FD_ISSET (fileno (rl_instream), &fds))
             rl_callback_read_char ();
         }

       printf ("rltest: Event loop has exited\n");
       return 0;
     }