diff -up adjtimex-1.29/adjtimex.c.decl adjtimex-1.29/adjtimex.c
--- adjtimex-1.29/adjtimex.c.decl	2025-01-07 10:50:34.218356076 +0100
+++ adjtimex-1.29/adjtimex.c	2025-01-07 10:50:42.286350666 +0100
@@ -185,7 +185,7 @@ static void cmos_read_time (time_t *cmos
 static void busywait_uip_fall(struct timeval *timestamp);
 static void busywait_second_change(struct tm *cmos, struct timeval *timestamp);
 static void compare(void);
-static void failntpdate();
+static void failntpdate(char *s);
 static void reset_time_status(void);
 static struct cmos_adj *get_cmos_adjustment(void);
 static void log_times(void);