Merge GDB 7.5.1

include/filenames.h

 /* Macros for taking apart, interpreting and processing file names.
 
    These are here because some non-Posix (a.k.a. DOSish) systems have
    drive letter brain-damage at the beginning of an absolute file name,
    use forward- and back-slash in path names interchangeably, and
    some of them have case-insensitive file names.
 
    Copyright 2000, 2001, 2007, 2010 Free Software Foundation, Inc.
 
 This file is part of BFD, the Binary File Descriptor 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 2 of the License, 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.  */
 
 #ifndef FILENAMES_H
 #define FILENAMES_H
 
+#include "hashtab.h" /* for hashval_t */
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 #if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
 #  ifndef HAVE_DOS_BASED_FILE_SYSTEM
 #    define HAVE_DOS_BASED_FILE_SYSTEM 1
 #  endif
 #  ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
 #    define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
@@ skipping 38 matching lines @@
 #define IS_ABSOLUTE_PATH_1(dos_based, f)                 \
   (IS_DIR_SEPARATOR_1 (dos_based, (f)[0])                \
    || HAS_DRIVE_SPEC_1 (dos_based, f))
 
 extern int filename_cmp (const char *s1, const char *s2);
 #define FILENAME_CMP(s1, s2)    filename_cmp(s1, s2)
 
 extern int filename_ncmp (const char *s1, const char *s2,
                           size_t n);
 
+extern hashval_t filename_hash (const void *s);
+
+extern int filename_eq (const void *s1, const void *s2);
+
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* FILENAMES_H */