Merge GDB 7.5.1

libiberty/stack-limit.c

 /* Increase stack size limit if possible.
    Copyright (C) 2011 Free Software Foundation, Inc.
 
 This file is part of the libiberty library.  This library 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 2, or (at your option)
 any later version.
 
 This library is distributed in the hope that it will be useful,
@@ skipping 16 matching lines @@
 
 @deftypefn Extension void stack_limit_increase (unsigned long @var{pref})
 
 Attempt to increase stack size limit to @var{pref} bytes if possible.
 
 @end deftypefn
 
 */
 
 #include "config.h"
+#include "ansidecl.h"
 
 #ifdef HAVE_STDINT_H
 #include <stdint.h>
 #endif
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #endif
 
 void
-stack_limit_increase (unsigned long pref)
+stack_limit_increase (unsigned long pref ATTRIBUTE_UNUSED)
 {
 #if defined(HAVE_SETRLIMIT) && defined(HAVE_GETRLIMIT) \
     && defined(RLIMIT_STACK) && defined(RLIM_INFINITY)
   struct rlimit rlim;
   if (getrlimit (RLIMIT_STACK, &rlim) == 0
       && rlim.rlim_cur != RLIM_INFINITY
       && rlim.rlim_cur < pref
       && (rlim.rlim_max == RLIM_INFINITY || rlim.rlim_cur < rlim.rlim_max))
     {
       rlim.rlim_cur = pref;
       if (rlim.rlim_max != RLIM_INFINITY && rlim.rlim_cur > rlim.rlim_max)
         rlim.rlim_cur = rlim.rlim_max;
       setrlimit (RLIMIT_STACK, &rlim);
     }
 #endif
 }