* fhandler_serial.cc (fhandler_serial::ioctl): Always return 0 for window size.

* termios.cc (tcgetattr): Clear out baud part of c_cflag since it is always
ignored.

winsup/cygwin/fhandler_serial.cc

@@ -517,6 +517,10 @@ fhandler_serial::ioctl (unsigned int cmd, void *buffer)
        else
 	 ipbuffer = st.cbInQue;
        break;
+     case TIOCGWINSZ:
+       ((struct winsize *) buffer)->ws_row = 0;
+       ((struct winsize *) buffer)->ws_col = 0;
+       break;
      default:
        set_errno (ENOSYS);
        res = -1;