+/* Set to 1 if a file's mode is implicit by the ACL. */
+# ifndef MODE_INSIDE_ACL
+# define MODE_INSIDE_ACL 1
+# endif
+
+#endif
+
+struct permission_context {
+ mode_t mode;
+#ifdef USE_ACL
+# if HAVE_ACL_GET_FILE /* Linux, FreeBSD, Mac OS X, IRIX, Tru64 */
+ acl_t acl;
+# if !HAVE_ACL_TYPE_EXTENDED
+ acl_t default_acl;
+# endif
+ bool acls_not_supported;
+
+# elif defined GETACL /* Solaris, Cygwin */
+ int count;
+ aclent_t *entries;
+# ifdef ACE_GETACL
+ int ace_count;
+ ace_t *ace_entries;
+# endif
+
+# elif HAVE_GETACL /* HP-UX */
+ struct acl_entry entries[NACLENTRIES];
+ int count;
+# if HAVE_ACLV_H
+ struct acl aclv_entries[NACLVENTRIES];
+ int aclv_count;
+# endif
+
+# elif HAVE_STATACL /* older AIX */
+ union { struct acl a; char room[4096]; } u;
+ bool have_u;
+
+# elif HAVE_ACLSORT /* NonStop Kernel */
+ struct acl entries[NACLENTRIES];
+ int count;
+
+# endif
+#endif
+};
+
+int get_permissions (const char *, int, mode_t, struct permission_context *);
+int set_permissions (struct permission_context *, const char *, int);
+void free_permission_context (struct permission_context *)
+#if ! (defined USE_ACL && (HAVE_ACL_GET_FILE || defined GETACL))
+ _GL_ATTRIBUTE_CONST