flimflam: Enable -Wimplicit-function-declaration.

plugins/modemmgr.c

 /*
  *
  *  Connection Manager
  *
  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
 
+#include <ctype.h>
 #include <errno.h>
-
 #include <gdbus.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #define CONNMAN_API_SUBJECT_TO_CHANGE
 #include <connman/element.h>
 #include <connman/dbus.h>
 #include <connman/device.h>
 #include <connman/network.h>
@@ skipping 3693 matching lines @@
         connection = NULL;
 
         connman_device_driver_unregister(&modem_driver);
         connman_network_driver_unregister(&network_driver);
 }
 
 
 CONNMAN_PLUGIN_DEFINE(modemmgr, "Modem Manager plugin", VERSION,
                       CONNMAN_PLUGIN_PRIORITY_DEFAULT,
                       modemmgr_init, modemmgr_exit)