extern void relocate_byte_stack (void);
extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object, ptrdiff_t, Lisp_Object *);
+extern Lisp_Object get_byte_code_arity (Lisp_Object);
/* Defined in macros.c. */
extern void init_macros (void);