SCM_API SCM scm_dynamic_link (SCM fname);
SCM_API SCM scm_dynamic_unlink (SCM dobj);
SCM_API SCM scm_dynamic_object_p (SCM obj);
-SCM_API SCM scm_dynamic_pointer (SCM name, SCM type, SCM dobj, SCM len);
+SCM_API SCM scm_dynamic_pointer (SCM name, SCM dobj);
SCM_API SCM scm_dynamic_func (SCM symb, SCM dobj);
SCM_API SCM scm_dynamic_call (SCM symb, SCM dobj);