including the terminating NUL byte.
<http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/limits.h.html>
PATH_MAX is not defined on systems which have no limit on filename length,
- such as GNU/Hurd. */
+ such as GNU/Hurd.
+
+ This file does *not* define PATH_MAX always. Programs that use this file
+ can handle the GNU/Hurd case in several ways:
+ - Either with a package-wide handling, or with a per-file handling,
+ - Either through a
+ #ifdef PATH_MAX
+ or through a fallback like
+ #ifndef PATH_MAX
+ # define PATH_MAX 8192
+ #endif
+ or through a fallback like
+ #ifndef PATH_MAX
+ # define PATH_MAX pathconf ("/", _PC_PATH_MAX)
+ #endif
+ */
# include <unistd.h>
# define _POSIX_PATH_MAX 256
# endif
-# if !defined PATH_MAX && defined _PC_PATH_MAX && defined HAVE_PATHCONF
-# 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 HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN
# include <sys/param.h>
# define PATH_MAX MAXPATHLEN
# endif
-# ifndef PATH_MAX
-# define PATH_MAX _POSIX_PATH_MAX
-# endif
-
# ifdef __hpux
/* On HP-UX, PATH_MAX designates the maximum number of bytes in a filename,
*not* including the terminating NUL byte, and is set to 1023.