Declare usage() functions as __dead void, if they don't return, on games section.

Found another one in arithmetic(6) which also didn't return, and removed a function from number(6) which is not used anymore.

OK tb@

17 files changed, 35 insertions, 36 deletions

diff --git a/games/arithmetic/arithmetic.c b/games/arithmetic/arithmetic.c
index fce5bcac5e2..7c5ca4c7e6e 100644
--- a/games/arithmetic/arithmetic.c
+++ b/games/arithmetic/arithmetic.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: arithmetic.c,v 1.21 2015/10/24 17:13:27 mmcc Exp $	*/
+/*	$OpenBSD: arithmetic.c,v 1.22 2015/12/25 20:59:09 mestre Exp $	*/
 
 /*
  * Copyright (c) 1989, 1993
@@ -71,12 +71,12 @@
 #include <unistd.h>
 
 int	getrandom(int, int, int);
-void	intr(int);
+__dead void	intr(int);
 int	opnum(int);
 void	penalise(int, int, int);
 int	problem(void);
 void	showstats(void);
-void	usage(void);
+__dead void	usage(void);
 
 const char keylist[] = "+-x/";
 const char defaultkeys[] = "+-";
diff --git a/games/boggle/boggle/extern.h b/games/boggle/boggle/extern.h
index d0bd14c109c..d7070ced341 100644
--- a/games/boggle/boggle/extern.h
+++ b/games/boggle/boggle/extern.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: extern.h,v 1.8 2014/12/04 06:12:33 deraadt Exp $	*/
+/*	$OpenBSD: extern.h,v 1.9 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: extern.h,v 1.3 1995/04/24 12:22:37 cgd Exp $	*/
 
 /*-
@@ -66,5 +66,5 @@ void	 starttime(void);
 void	 startwords(void);
 void	 stoptime(void);
 int	 timerch(void);
-void	 usage(void);
+__dead void	 usage(void);
 int	 validword(char *);
diff --git a/games/factor/factor.c b/games/factor/factor.c
index 56cc0dc3d14..173f24be3d0 100644
--- a/games/factor/factor.c
+++ b/games/factor/factor.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: factor.c,v 1.22 2015/10/24 17:31:00 mmcc Exp $	*/
+/*	$OpenBSD: factor.c,v 1.23 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: factor.c,v 1.5 1995/03/23 08:28:07 cgd Exp $	*/
 
 /*
@@ -78,7 +78,7 @@ extern const int pattern_size;
 
 void	pr_fact(u_int64_t);		/* print factors of a value */
 void	pr_bigfact(u_int64_t);
-void	usage(void);
+__dead void	usage(void);
 
 int
 main(int argc, char *argv[])
diff --git a/games/fish/fish.c b/games/fish/fish.c
index 19fb751b3f7..4602ce355b5 100644
--- a/games/fish/fish.c
+++ b/games/fish/fish.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fish.c,v 1.18 2015/11/30 08:42:03 tb Exp $	*/
+/*	$OpenBSD: fish.c,v 1.19 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: fish.c,v 1.3 1995/03/23 08:28:18 cgd Exp $	*/
 
 /*-
@@ -79,7 +79,7 @@ int	nrandom(int);
 void	printhand(const int *);
 void	printplayer(int);
 int	promove(void);
-void	usage(void);
+__dead void	usage(void);
 int	usermove(void);
 
 int
diff --git a/games/fortune/fortune/fortune.c b/games/fortune/fortune/fortune.c
index 1c9da5b4aee..3250420be74 100644
--- a/games/fortune/fortune/fortune.c
+++ b/games/fortune/fortune/fortune.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fortune.c,v 1.47 2015/11/10 15:29:11 deraadt Exp $	*/
+/*	$OpenBSD: fortune.c,v 1.48 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: fortune.c,v 1.8 1995/03/23 08:28:40 cgd Exp $	*/
 
 /*-
@@ -136,7 +136,7 @@ void	 print_file_list(void);
 void	 print_list(FILEDESC *, int);
 void	 sum_noprobs(FILEDESC *);
 void	 sum_tbl(STRFILE *, STRFILE *);
-void	 usage(void);
+__dead void	 usage(void);
 void	 zero_tbl(STRFILE *);
 
 char	*conv_pat(char *);
diff --git a/games/fortune/strfile/strfile.c b/games/fortune/strfile/strfile.c
index c44c37fb8e9..579ea18a55e 100644
--- a/games/fortune/strfile/strfile.c
+++ b/games/fortune/strfile/strfile.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: strfile.c,v 1.23 2015/10/24 18:33:22 mmcc Exp $	*/
+/*	$OpenBSD: strfile.c,v 1.24 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: strfile.c,v 1.4 1995/04/24 12:23:09 cgd Exp $	*/
 
 /*-
@@ -114,7 +114,7 @@ void do_order(void);
 void getargs(int, char **);
 void randomize(void);
 char *unctrl(char);
-void usage(void);
+__dead void usage(void);
 
 /*
  * main:
diff --git a/games/grdc/grdc.c b/games/grdc/grdc.c
index 89c6e661ff2..9a06a746f55 100644
--- a/games/grdc/grdc.c
+++ b/games/grdc/grdc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: grdc.c,v 1.21 2015/12/09 02:00:40 jsg Exp $	*/
+/*	$OpenBSD: grdc.c,v 1.22 2015/12/25 20:59:09 mestre Exp $	*/
 /*
  *
  * Copyright 2002 Amos Shapir.  Public domain.
@@ -42,7 +42,7 @@ int hascolor = 0;
 void set(int, int);
 void standt(int);
 void getwinsize(int *, int *);
-void usage(void);
+__dead void usage(void);
 
 void
 sighndl(int signo)
diff --git a/games/hangman/main.c b/games/hangman/main.c
index 6229ecb559d..423c65d4857 100644
--- a/games/hangman/main.c
+++ b/games/hangman/main.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: main.c,v 1.13 2015/10/22 05:28:42 doug Exp $	*/
+/*	$OpenBSD: main.c,v 1.14 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: main.c,v 1.3 1995/03/23 08:32:50 cgd Exp $	*/
 
 /*
@@ -33,7 +33,7 @@
 # include	"hangman.h"
 #include <paths.h>
 
-void	usage();
+__dead void	usage(void);
 
 /*
  * This game written by Ken Arnold.
diff --git a/games/number/number.c b/games/number/number.c
index a8053c65cf4..d0e97ac40c2 100644
--- a/games/number/number.c
+++ b/games/number/number.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: number.c,v 1.16 2015/10/24 18:37:23 mmcc Exp $	*/
+/*	$OpenBSD: number.c,v 1.17 2015/12/25 20:59:09 mestre Exp $	*/
 
 /*
  * Copyright (c) 1988, 1993, 1994
@@ -67,9 +67,8 @@ void	convert(char *);
 void	convertexp(char *);
 int	number(const char *, int);
 void	pfract(int);
-void	toobig(void);
 int	unit(int, const char *);
-void	usage(void);
+__dead void	usage(void);
 
 int lflag;
 
diff --git a/games/pig/pig.c b/games/pig/pig.c
index 9c64fb493b2..d0a30c724ca 100644
--- a/games/pig/pig.c
+++ b/games/pig/pig.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pig.c,v 1.13 2015/10/24 18:29:15 mmcc Exp $	*/
+/*	$OpenBSD: pig.c,v 1.14 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: pig.c,v 1.2 1995/03/23 08:41:40 cgd Exp $	*/
 
 /*-
@@ -40,7 +40,7 @@
 #include <unistd.h>
 
 void pigout(char *, int);
-void usage(void);
+__dead void usage(void);
 
 int
 main(int argc, char *argv[])
diff --git a/games/ppt/ppt.c b/games/ppt/ppt.c
index a40a8c9178f..e7a050137cd 100644
--- a/games/ppt/ppt.c
+++ b/games/ppt/ppt.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ppt.c,v 1.13 2015/10/14 08:12:12 doug Exp $	*/
+/*	$OpenBSD: ppt.c,v 1.14 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: ppt.c,v 1.4 1995/03/23 08:35:40 cgd Exp $	*/
 
 /*
@@ -41,7 +41,7 @@
 
 #define	EDGE	"___________"
 
-void	usage(void);
+__dead void	usage(void);
 void	putppt(int);
 int	getppt(const char *buf);
 
diff --git a/games/primes/primes.c b/games/primes/primes.c
index b8baf1b2fe0..148ddb2359e 100644
--- a/games/primes/primes.c
+++ b/games/primes/primes.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: primes.c,v 1.18 2015/11/30 08:53:53 tb Exp $	*/
+/*	$OpenBSD: primes.c,v 1.19 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: primes.c,v 1.5 1995/04/24 12:24:47 cgd Exp $	*/
 
 /*
@@ -93,7 +93,7 @@ extern const int pattern_size;	/* length of pattern array */
 
 void	primes(ubig, ubig);
 ubig	read_num_buf(void);
-void	usage(void);
+__dead void	usage(void);
 
 int
 main(int argc, char *argv[])
diff --git a/games/quiz/quiz.c b/games/quiz/quiz.c
index af3d8d3f9bc..704d3c2bdd8 100644
--- a/games/quiz/quiz.c
+++ b/games/quiz/quiz.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: quiz.c,v 1.23 2015/12/06 09:55:58 tb Exp $	*/
+/*	$OpenBSD: quiz.c,v 1.24 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: quiz.c,v 1.9 1995/04/22 10:16:58 cgd Exp $	*/
 
 /*-
@@ -58,7 +58,7 @@ const char	*next_cat(const char *);
 void	 quiz(void);
 void	 score(u_int, u_int, u_int);
 void	 show_index(void);
-void	 usage(void);
+__dead void	usage(void);
 
 int
 main(int argc, char *argv[])
diff --git a/games/random/random.c b/games/random/random.c
index a23942504b0..f8fd45343ab 100644
--- a/games/random/random.c
+++ b/games/random/random.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: random.c,v 1.14 2015/11/04 21:22:10 tedu Exp $	*/
+/*	$OpenBSD: random.c,v 1.15 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: random.c,v 1.3 1995/04/22 07:44:05 cgd Exp $	*/
 
 /*
@@ -45,7 +45,7 @@
 #include <unistd.h>
 #include <limits.h>
 
-void usage(void);
+__dead void usage(void);
 
 int
 main(int argc, char *argv[])
diff --git a/games/robots/robots.h b/games/robots/robots.h
index 1a9b0ca289b..f33f91c760c 100644
--- a/games/robots/robots.h
+++ b/games/robots/robots.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: robots.h,v 1.11 2015/12/04 16:40:09 tb Exp $	*/
+/*	$OpenBSD: robots.h,v 1.12 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: robots.h,v 1.5 1995/04/24 12:24:54 cgd Exp $	*/
 
 /*
@@ -134,4 +134,4 @@ void	score(int);
 void	set_name(SCORE *);
 void	show_score(void);
 int	sign(int);
-void	usage(void);
+__dead void	usage(void);
diff --git a/games/tetris/tetris.c b/games/tetris/tetris.c
index 41d68e318d1..629694729fa 100644
--- a/games/tetris/tetris.c
+++ b/games/tetris/tetris.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: tetris.c,v 1.26 2015/11/20 07:40:23 tb Exp $	*/
+/*	$OpenBSD: tetris.c,v 1.27 2015/12/25 20:59:09 mestre Exp $	*/
 /*	$NetBSD: tetris.c,v 1.2 1995/04/22 07:42:47 cgd Exp $	*/
 
 /*-
@@ -68,7 +68,7 @@ static void	elide(void);
 static void	setup_board(void);
 const struct shape *randshape(void);
 void	onintr(int);
-void	usage(void);
+__dead void	usage(void);
 
 /*
  * Set up the initial board.  The bottom display row is completely set,
diff --git a/games/wump/wump.c b/games/wump/wump.c
index fe42fc54882..ca8670e1d51 100644
--- a/games/wump/wump.c
+++ b/games/wump/wump.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: wump.c,v 1.27 2015/11/30 09:00:02 tb Exp $	*/
+/*	$OpenBSD: wump.c,v 1.28 2015/12/25 20:59:09 mestre Exp $	*/
 
 /*
  * Copyright (c) 1989, 1993
@@ -123,7 +123,7 @@ void	pit_survive(void);
 int	shoot(char *);
 void	shoot_self(void);
 int	take_action(void);
-void	usage(void);
+__dead void	usage(void);
 void	wump_kill(void);
 void	wump_bat_kill(void);
 void	wump_walk_kill(void);