-static void hup __ARGS((int, int, struct sigcontext *, char *));
-static void intr __ARGS((int, int, struct sigcontext *, char *));
-static void term __ARGS((int, int, struct sigcontext *, char *));
-static void alrm __ARGS((int, int, struct sigcontext *, char *));
-static void io __ARGS((int, int, struct sigcontext *, char *));
+static void hup __ARGS((int));
+static void intr __ARGS((int));
+static void term __ARGS((int));
+static void alrm __ARGS((int));
+static void io __ARGS((int));
+static void chld __ARGS((int));