-extern void sha1_init __P((struct sha1_ctxt *));
-extern void sha1_pad __P((struct sha1_ctxt *));
-extern void sha1_loop __P((struct sha1_ctxt *, const u_int8_t *, size_t));
-extern void sha1_result __P((struct sha1_ctxt *, caddr_t));
+extern void sha1_init(struct sha1_ctxt *);
+extern void sha1_pad(struct sha1_ctxt *);
+extern void sha1_loop(struct sha1_ctxt *, const u_int8_t *, size_t);
+extern void sha1_result(struct sha1_ctxt *, caddr_t);