-extern u_int ether_if_print IF_PRINTER_ARGS;
-extern u_int fddi_if_print IF_PRINTER_ARGS;
-extern u_int fr_if_print IF_PRINTER_ARGS;
-extern u_int ieee802_11_if_print IF_PRINTER_ARGS;
-extern u_int ieee802_11_radio_avs_if_print IF_PRINTER_ARGS;
-extern u_int ieee802_11_radio_if_print IF_PRINTER_ARGS;
-extern u_int ieee802_15_4_if_print IF_PRINTER_ARGS;
-extern u_int ieee802_15_4_tap_if_print IF_PRINTER_ARGS;
-extern u_int ipfc_if_print IF_PRINTER_ARGS;
-extern u_int ipoib_if_print IF_PRINTER_ARGS;
-extern u_int ipnet_if_print IF_PRINTER_ARGS;
-extern u_int juniper_atm1_if_print IF_PRINTER_ARGS;
-extern u_int juniper_atm2_if_print IF_PRINTER_ARGS;
-extern u_int juniper_chdlc_if_print IF_PRINTER_ARGS;
-extern u_int juniper_es_if_print IF_PRINTER_ARGS;
-extern u_int juniper_ether_if_print IF_PRINTER_ARGS;
-extern u_int juniper_frelay_if_print IF_PRINTER_ARGS;
-extern u_int juniper_ggsn_if_print IF_PRINTER_ARGS;
-extern u_int juniper_mfr_if_print IF_PRINTER_ARGS;
-extern u_int juniper_mlfr_if_print IF_PRINTER_ARGS;
-extern u_int juniper_mlppp_if_print IF_PRINTER_ARGS;
-extern u_int juniper_monitor_if_print IF_PRINTER_ARGS;
-extern u_int juniper_ppp_if_print IF_PRINTER_ARGS;
-extern u_int juniper_pppoe_atm_if_print IF_PRINTER_ARGS;
-extern u_int juniper_pppoe_if_print IF_PRINTER_ARGS;
-extern u_int juniper_services_if_print IF_PRINTER_ARGS;
-extern u_int lane_if_print IF_PRINTER_ARGS;
-extern u_int ltalk_if_print IF_PRINTER_ARGS;
-extern u_int mfr_if_print IF_PRINTER_ARGS;
-extern u_int netanalyzer_if_print IF_PRINTER_ARGS;
-extern u_int netanalyzer_transparent_if_print IF_PRINTER_ARGS;
-extern u_int nflog_if_print IF_PRINTER_ARGS;
+extern void ether_if_print IF_PRINTER_ARGS;
+extern void fddi_if_print IF_PRINTER_ARGS;
+extern void fr_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_radio_if_print IF_PRINTER_ARGS;
+extern void ieee802_15_4_if_print IF_PRINTER_ARGS;
+extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS;
+extern void ipfc_if_print IF_PRINTER_ARGS;
+extern void ipnet_if_print IF_PRINTER_ARGS;
+extern void ipoib_if_print IF_PRINTER_ARGS;
+extern void juniper_atm1_if_print IF_PRINTER_ARGS;
+extern void juniper_atm2_if_print IF_PRINTER_ARGS;
+extern void juniper_chdlc_if_print IF_PRINTER_ARGS;
+extern void juniper_es_if_print IF_PRINTER_ARGS;
+extern void juniper_ether_if_print IF_PRINTER_ARGS;
+extern void juniper_frelay_if_print IF_PRINTER_ARGS;
+extern void juniper_ggsn_if_print IF_PRINTER_ARGS;
+extern void juniper_mfr_if_print IF_PRINTER_ARGS;
+extern void juniper_mlfr_if_print IF_PRINTER_ARGS;
+extern void juniper_mlppp_if_print IF_PRINTER_ARGS;
+extern void juniper_monitor_if_print IF_PRINTER_ARGS;
+extern void juniper_ppp_if_print IF_PRINTER_ARGS;
+extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS;
+extern void juniper_pppoe_if_print IF_PRINTER_ARGS;
+extern void juniper_services_if_print IF_PRINTER_ARGS;
+extern void ltalk_if_print IF_PRINTER_ARGS;
+extern void mfr_if_print IF_PRINTER_ARGS;
+extern void netanalyzer_if_print IF_PRINTER_ARGS;
+extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS;
+extern void nflog_if_print IF_PRINTER_ARGS;