Merge GDB 7.5.1

gdb/observer.c

 /* GDB Notifications to Observers.
 
    Copyright (C) 2003-2004, 2007-2012 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
@@ skipping 163 matching lines @@
    testsuite.  DO NOT USE IT within observer.c (or anywhere else for
    that matter)!  */
 
 /* If we define these variables and functions as `static', the
    compiler will optimize them out.  */
  
 int observer_test_first_observer = 0;
 int observer_test_second_observer = 0;
 int observer_test_third_observer = 0;
 
+/* Provide prototypes to silence -Wmissing-prototypes.  */
+extern void observer_test_first_notification_function (int arg);
+extern void observer_test_second_notification_function (int arg);
+extern void observer_test_third_notification_function (int arg);
+
 void
 observer_test_first_notification_function (int arg)
 {
   observer_test_first_observer++;
 }
 
 void
 observer_test_second_notification_function (int arg)
 {
   observer_test_second_observer++;
@@ skipping 14 matching lines @@
                             &observer_debug, _("\
 Set observer debugging."), _("\
 Show observer debugging."), _("\
 When non-zero, observer debugging is enabled."),
                             NULL,
                             show_observer_debug,
                             &setdebuglist, &showdebuglist);
 }
 
 #include "observer.inc"