-static int ip_heuristic_guess(netdissect_options *, register const u_char *, u_int);
-static int juniper_ppp_heuristic_guess(netdissect_options *, register const u_char *, u_int);
+static int ip_heuristic_guess(netdissect_options *, const u_char *, u_int);
+static int juniper_ppp_heuristic_guess(netdissect_options *, const u_char *, u_int);