extern int encoding_buffer_size P_ ((struct coding_system *, int));
extern void setup_coding_system P_ ((Lisp_Object, struct coding_system *));
extern void detect_coding P_ ((struct coding_system *));
-extern Lisp_Object code_convert_region P_ ((EMACS_INT, EMACS_INT,
+extern Lisp_Object code_convert_region P_ ((Lisp_Object, Lisp_Object,
Lisp_Object, Lisp_Object,
int, int));
extern Lisp_Object code_convert_string P_ ((Lisp_Object, Lisp_Object,