extern int acl_check(int, const uschar *, uschar *, uschar **, uschar **);
extern uschar *acl_current_verb(void);
extern int acl_eval(int, uschar *, uschar **, uschar **);
-extern uschar *acl_standalone_setvar(const uschar *);
+extern uschar *acl_standalone_setvar(const uschar *, BOOL);
extern tree_node *acl_var_create(uschar *);
extern void acl_var_write(uschar *, uschar *, void *);