Merge GDB 7.5.1

gdb/gnulib/import/memmem.c

-/* Copyright (C) 1991, 1992, 1993, 1994, 1996, 1997, 1998, 2000, 2004, 2007,
-   2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 1991-1994, 1996-1998, 2000, 2004, 2007-2012 Free Software
+   Foundation, Inc.
    This file is part of the GNU C Library.
 
    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, or (at your option)
    any later version.
 
    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 Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 /* This particular implementation was written by Eric Blake, 2008.  */
 
 #ifndef _LIBC
 # include <config.h>
 #endif
 
 /* Specification of memmem.  */
 #include <string.h>
 
@@ skipping 39 matching lines @@
       haystack_len -= haystack - (const unsigned char *) haystack_start;
       if (haystack_len < needle_len)
         return NULL;
       return two_way_short_needle (haystack, haystack_len, needle, needle_len);
     }
   else
     return two_way_long_needle (haystack, haystack_len, needle, needle_len);
 }
 
 #undef LONG_NEEDLE_THRESHOLD