pathmax.h revision 267654 
1/* Define PATH_MAX somehow.  Requires sys/types.h.
2   Copyright (C) 1992, 1999, 2001, 2003 Free Software Foundation, Inc.
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2, or (at your option)
7   any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software Foundation,
16   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17
18#ifndef _PATHMAX_H
19# define _PATHMAX_H
20
21# if HAVE_UNISTD_H
22#  include <unistd.h>
23# endif
24
25/* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define
26   PATH_MAX but might cause redefinition warnings when sys/param.h is
27   later included (as on MORE/BSD 4.3).  */
28# if defined _POSIX_VERSION || !defined __GNUC__
29#  include <limits.h>
30# endif
31
32# ifndef _POSIX_PATH_MAX
33#  define _POSIX_PATH_MAX 255
34# endif
35
36# if !defined PATH_MAX && defined _PC_PATH_MAX
37#  define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 \
38		    : pathconf ("/", _PC_PATH_MAX))
39# endif
40
41/* Don't include sys/param.h if it already has been.  */
42# if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
43#  include <sys/param.h>
44# endif
45
46# if !defined PATH_MAX && defined MAXPATHLEN
47#  define PATH_MAX MAXPATHLEN
48# endif
49
50# ifndef PATH_MAX
51#  define PATH_MAX _POSIX_PATH_MAX
52# endif
53
54#endif /* _PATHMAX_H */
55