msgs WARNS6 cleanup

[Larry Lansing]

Index: Makefile
===================================================================
RCS file: /home/dcvs/src/usr.bin/msgs/Makefile,v
retrieving revision 1.2
diff -u -r1.2 Makefile
--- Makefile	17 Jun 2003 04:29:29 -0000	1.2
+++ Makefile	17 Jan 2005 16:15:14 -0000
@@ -3,6 +3,7 @@
 # $DragonFly: src/usr.bin/msgs/Makefile,v 1.2 2003/06/17 04:29:29 dillon Exp $
 
 PROG=	msgs
+WARNS?=	6
 DPADD=	${LIBTERMCAP}
 LDADD=	-ltermcap
 
Index: msgs.c
===================================================================
RCS file: /home/dcvs/src/usr.bin/msgs/msgs.c,v
retrieving revision 1.3
diff -u -r1.3 msgs.c
--- msgs.c	4 Oct 2003 20:36:49 -0000	1.3
+++ msgs.c	17 Jan 2005 16:20:53 -0000
@@ -101,7 +101,7 @@
 
 FILE	*msgsrc;
 FILE	*newmsg;
-char	*sep = "-";
+const char	*sep = "-";
 char	inbuf[BUFSIZ];
 char	fname[MAXPATHLEN];
 char	cmdbuf[MAXPATHLEN + MAXPATHLEN];
@@ -142,7 +142,7 @@
 jmp_buf	tstpbuf;
 
 
-void ask(char *);
+void ask(const char *);
 void gfrsub(FILE *);
 int linecnt(FILE *);
 int next(char *);
@@ -660,7 +660,7 @@
 }
 
 void
-onintr(int unused)
+onintr(int unused __unused)
 {
 	signal(SIGINT, onintr);
 	if (mailing)
@@ -685,7 +685,7 @@
  * We have just gotten a susp.  Suspend and prepare to resume.
  */
 void
-onsusp(int unused)
+onsusp(int unused __unused)
 {
 	signal(SIGTSTP, SIG_DFL);
 	sigsetmask(0);
@@ -719,7 +719,7 @@
 }
 
 void
-ask(char *prompt)
+ask(const char *prompt)
 {
 	char	inch;
 	int	n, cmsg, fd;