--- sysvinit/src/bootlogd.c

+++ sysvinit/src/bootlogd.c

@@ -425,6 +425,7 @@ void writelog(FILE *fp, unsigned char *ptr, int len)

 /*

  *	Print usage message and exit.

  */

+__attribute__((noreturn))

 void usage(void)

 {

 	fprintf(stderr, "Usage: bootlogd [-v] [-r] [-d] [-s] [-c] [-p pidfile] [-l logfile]\n");

--- sysvinit/src/halt.c

+++ sysvinit/src/halt.c

@@ -73,6 +73,7 @@ extern void write_wtmp(char *user, char *id, int pid, int type, char *line);

 /*

  *	Send usage message.

  */

+__attribute__((noreturn))

 void usage(void)

 {

 	fprintf(stderr, "usage: %s [-n] [-w] [-d] [-f] [-h] [-i]%s\n",

--- sysvinit/src/init.c

+++ sysvinit/src/init.c

@@ -2671,6 +2671,7 @@ void init_main(void)

 /*

  * Tell the user about the syntax we expect.

  */

+__attribute__((noreturn))

 static

 void usage(char *s)

 {

@@ -2689,6 +2690,8 @@ int telinit(char *progname, int argc, char **argv)

 	int			f, fd, l;

 	char			*env = NULL;

+	if (!argc) usage(progname);

+

 	memset(&request, 0, sizeof(request));

 	request.magic     = INIT_MAGIC;

--- sysvinit/src/killall5.c

+++ sysvinit/src/killall5.c

@@ -814,6 +814,7 @@ PIDQ_HEAD *pidof(char *prog)

 }

 /* Give usage message and exit. */

+__attribute__((noreturn))

 void usage(void)

 {

 	nsyslog(LOG_ERR, "only one argument, a signal number, allowed");

--- sysvinit/src/last.c

+++ sysvinit/src/last.c

@@ -530,6 +530,7 @@ int list(struct utmp *p, time_t t, int what)

 /*

  *	show usage

  */

+__attribute__((noreturn))

 void usage(char *s)

 {

 	fprintf(stderr, "Usage: %s [-num | -n num] [-f file] "

--- sysvinit/src/mountpoint.c

+++ sysvinit/src/mountpoint.c

@@ -50,6 +50,7 @@ int dostat(char *path, struct stat *st, int do_lstat, int quiet)

 	return 0;

 }

+__attribute__((noreturn))

 void usage(void) {

 	fprintf(stderr, "Usage: mountpoint [-q] [-d] [-x] path\n");

 	exit(1);

--- sysvinit/src/shutdown.c

+++ sysvinit/src/shutdown.c

@@ -120,6 +120,7 @@ void stopit(int sig)

 /*

  *	Show usage message.

  */

+__attribute__((noreturn))

 void usage(void)

 {

 	fprintf(stderr,

--- sysvinit/src/sulogin.c

+++ sysvinit/src/sulogin.c

@@ -467,6 +467,7 @@ void sushell(struct passwd *pwd)

 	perror(STATICSH);

 }

+__attribute__((noreturn))

 static

 void usage(void)

 {

--- sysvinit/src/utmpdump.c

+++ sysvinit/src/utmpdump.c

@@ -243,6 +243,7 @@ undump(FILE *fp, int forever, int oldfmt)

 	free(linestart);

 }

+__attribute__((noreturn))

 void

 usage(int result)

 {