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+/* Define PATH_MAX somehow. Requires sys/types.h.
+ Copyright (C) 1992 Free Software Foundation, Inc.
+
+ 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#ifndef _PATHMAX_H
+#define _PATHMAX_H
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/* Non-POSIX BSD systems might have gcc's limits.h, which doesn't define
+ PATH_MAX but might cause redefinition warnings when sys/param.h is
+ later included (as on MORE/BSD 4.3). */
+#if defined(_POSIX_VERSION) || (defined(HAVE_LIMITS_H) && !defined(__GNUC__))
+#include <limits.h>
+#endif
+
+#ifndef _POSIX_PATH_MAX
+#define _POSIX_PATH_MAX 255
+#endif
+
+#if !defined(PATH_MAX) && defined(_PC_PATH_MAX)
+#define PATH_MAX (pathconf ("/", _PC_PATH_MAX) < 1 ? 1024 : pathconf ("/", _PC_PATH_MAX))
+#endif
+
+/* Don't include sys/param.h if it already has been. */
+#if !defined(PATH_MAX) && !defined(MAXPATHLEN) && !defined(__MSDOS__)
+#include <sys/param.h>
+#endif
+
+#if !defined(PATH_MAX) && defined(MAXPATHLEN)
+#define PATH_MAX MAXPATHLEN
+#endif
+
+#ifndef PATH_MAX
+#define PATH_MAX _POSIX_PATH_MAX
+#endif
+
+#endif /* _PATHMAX_H */