These are already used by some applications, so add it.
# define AT_REMOVEDIR 0x200 /* Remove directory instead of
unlinking file. */
# define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
+# ifdef __USE_GNU
+# define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount
+ traversal. */
+# define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname. */
+# endif
# define AT_EACCESS 0x200 /* Test access permitted for
effective IDs, not real IDs. */
#endif