--- ppp-2.4.5.orig/pppd/ipcp.h	2009-11-16 23:26:07.000000000 +0100
+++ ppp-2.4.5/pppd/ipcp.h	2014-03-17 16:13:16.000000000 +0100
@@ -91,6 +91,6 @@ extern ipcp_options ipcp_gotoptions[];
 extern ipcp_options ipcp_allowoptions[];
 extern ipcp_options ipcp_hisoptions[];
 
-char *ip_ntoa __P((u_int32_t));
+char *ip_ntoa (u_int32_t);
 
 extern struct protent ipcp_protent;
