--- ppp-2.4.5.orig/pppd/upap.c	2009-11-16 23:26:07.000000000 +0100
+++ ppp-2.4.5/pppd/upap.c	2014-03-17 16:13:13.000000000 +0100
@@ -78,13 +78,13 @@ static option_t pap_option_list[] = {
 /*
  * Protocol entry points.
  */
-static void upap_init __P((int));
-static void upap_lowerup __P((int));
-static void upap_lowerdown __P((int));
-static void upap_input __P((int, u_char *, int));
-static void upap_protrej __P((int));
-static int  upap_printpkt __P((u_char *, int,
-			       void (*) __P((void *, char *, ...)), void *));
+static void upap_init (int);
+static void upap_lowerup (int);
+static void upap_lowerdown (int);
+static void upap_input (int, u_char *, int);
+static void upap_protrej (int);
+static int  upap_printpkt (u_char *, int,
+			       void (*) __P((void *, char *, ...)), void *);
 
 struct protent pap_protent = {
     PPP_PAP,
@@ -108,13 +108,13 @@ struct protent pap_protent = {
 
 upap_state upap[NUM_PPP];		/* UPAP state; one for each unit */
 
-static void upap_timeout __P((void *));
-static void upap_reqtimeout __P((void *));
-static void upap_rauthreq __P((upap_state *, u_char *, int, int));
-static void upap_rauthack __P((upap_state *, u_char *, int, int));
-static void upap_rauthnak __P((upap_state *, u_char *, int, int));
-static void upap_sauthreq __P((upap_state *));
-static void upap_sresp __P((upap_state *, int, int, char *, int));
+static void upap_timeout (void *);
+static void upap_reqtimeout (void *);
+static void upap_rauthreq (upap_state *, u_char *, int, int);
+static void upap_rauthack (upap_state *, u_char *, int, int);
+static void upap_rauthnak (upap_state *, u_char *, int, int);
+static void upap_sauthreq (upap_state *);
+static void upap_sresp (upap_state *, int, int, char *, int);
 
 
 /*
@@ -612,7 +612,7 @@ static int
 upap_printpkt(p, plen, printer, arg)
     u_char *p;
     int plen;
-    void (*printer) __P((void *, char *, ...));
+    void (*printer) (void *, char *, ...);
     void *arg;
 {
     int code, id, len;