diff --git a/bin/csh/csh.c b/bin/csh/csh.c
index 8f532de52aa1..0e032e5f82eb 100644
--- a/bin/csh/csh.c
+++ b/bin/csh/csh.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: csh.c,v 1.21 1998/07/28 02:23:37 mycroft Exp $	*/
+/*	$NetBSD: csh.c,v 1.22 1998/07/28 02:47:19 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1980, 1991, 1993\n\
 #if 0
 static char sccsid[] = "@(#)csh.c	8.2 (Berkeley) 10/12/93";
 #else
-__RCSID("$NetBSD: csh.c,v 1.21 1998/07/28 02:23:37 mycroft Exp $");
+__RCSID("$NetBSD: csh.c,v 1.22 1998/07/28 02:47:19 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -71,9 +71,6 @@ __RCSID("$NetBSD: csh.c,v 1.21 1998/07/28 02:23:37 mycroft Exp $");
 #include "extern.h"
 #include "pathnames.h"
 
-extern bool MapsAreInited;
-extern bool NLSMapsAreInited;
-
 /*
  * C Shell
  *
@@ -100,7 +97,6 @@ bool    batch = 0;
 bool    mflag = 0;
 bool    prompt = 1;
 bool    enterhist = 0;
-bool    tellwhat = 0;
 
 extern char **environ;
 
@@ -473,8 +469,8 @@ main(argc, argv)
 	    (void) signal(SIGQUIT, SIG_IGN);
 	(void) signal(SIGINT, pintr);
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_BLOCK, &sigset, NULL);
 	(void) signal(SIGTERM, SIG_IGN);
 	if (quitit == 0 && arginp == 0) {
 	    (void) signal(SIGTSTP, SIG_IGN);
@@ -545,8 +541,8 @@ notty:
 	    sigset_t osigset;
 
 	    sigemptyset(&sigset);
-	    sigaddset(&sigset, SIGINT);
-	    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+	    (void) sigaddset(&sigset, SIGINT);
+	    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
 
 	    setintr = 0;
 	    parintr = SIG_IGN;	/* Disable onintr */
@@ -559,7 +555,7 @@ notty:
 	    if (loginsh)
 		(void) srcfile(_PATH_DOTLOGIN, 0, 0);
 #endif
-	    sigprocmask(SIG_SETMASK, &osigset, NULL);
+	    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 	    setintr = osetintr;
 	    parintr = oparintr;
 	}
@@ -747,11 +743,11 @@ srcunit(unit, onlyown, hflg)
 
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_BLOCK, &sigset, &osigset);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     }
     /* Setup the new values of the state stuff saved above */
-    memcpy(&saveB, &B, sizeof(B));
+    (void) memcpy(&saveB, &B, sizeof(B));
     fbuf = NULL;
     fseekp = feobp = fblocks = 0;
     oSHIN = SHIN, SHIN = unit, arginp = 0, onelflg = 0;
@@ -767,14 +763,14 @@ srcunit(unit, onlyown, hflg)
      * interrupted.
      */
     if (setintr)
-	sigprocmask(SIG_SETMASK, &osigset, NULL);
+	(void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     settell();
 
     if ((my_reenter = setexit()) == 0)
 	process(0);		/* 0 -> blow away on errors */
 
     if (setintr)
-	sigprocmask(SIG_SETMASK, &osigset, NULL);
+	(void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     if (oSHIN >= 0) {
 	int i;
 
@@ -785,7 +781,7 @@ srcunit(unit, onlyown, hflg)
 	xfree((ptr_t) fbuf);
 
 	/* Reset input arena */
-	memcpy(&B, &saveB, sizeof(B));
+	(void) memcpy(&B, &saveB, sizeof(B));
 
 	(void) close(SHIN), SHIN = oSHIN;
 	arginp = oarginp, onelflg = oonelflg;
@@ -960,11 +956,11 @@ pintr1(wantnl)
     sigset_t sigset, osigset;
 
     sigemptyset(&sigset);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     if (setintr) {
 	sigset = osigset;
-	sigdelset(&sigset, SIGINT);
-	sigprocmask(SIG_SETMASK, &sigset, NULL);
+	(void) sigdelset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_SETMASK, &sigset, NULL);
 	if (pjobs) {
 	    pjobs = 0;
 	    (void) fprintf(cshout, "\n");
@@ -973,8 +969,8 @@ pintr1(wantnl)
 	    /* NOTREACHED */
 	}
     }
-    sigdelset(&osigset, SIGCHLD);
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigdelset(&osigset, SIGCHLD);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     (void) fpurge(cshout);
     (void) endpwent();
 
@@ -1037,8 +1033,8 @@ process(catch)
 	 */
 	if (setintr) {
 	    sigemptyset(&sigset);
-	    sigaddset(&sigset, SIGINT);
-	    sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	    (void) sigaddset(&sigset, SIGINT);
+	    (void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
 	}
 
 	/*
@@ -1103,7 +1099,7 @@ process(catch)
 	 * The parser may lose space if interrupted.
 	 */
 	if (setintr)
-	    sigprocmask(SIG_BLOCK, &sigset, NULL);
+	    (void) sigprocmask(SIG_BLOCK, &sigset, NULL);
 
 	/*
 	 * Save input text on the history list if reading in old history, or it
diff --git a/bin/csh/csh.h b/bin/csh/csh.h
index b354e88010de..ed5ea78fa2a2 100644
--- a/bin/csh/csh.h
+++ b/bin/csh/csh.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: csh.h,v 1.10 1997/07/04 21:23:54 christos Exp $	*/
+/*	$NetBSD: csh.h,v 1.11 1998/07/28 02:47:19 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -188,8 +188,8 @@ jmp_buf reslab;
 #define	setexit()	(setjmp(reslab))
 #define	reset()		longjmp(reslab, 1)
  /* Should use structure assignment here */
-#define	getexit(a)	memcpy((a), reslab, sizeof reslab)
-#define	resexit(a)	memcpy(reslab, (a), sizeof reslab)
+#define	getexit(a)	(void) memcpy((a), reslab, sizeof reslab)
+#define	resexit(a)	(void) memcpy(reslab, (a), sizeof reslab)
 
 Char   *gointr;			/* Label for an onintr transfer */
 
diff --git a/bin/csh/err.c b/bin/csh/err.c
index 38a7a1bf8b22..d2522a80cb47 100644
--- a/bin/csh/err.c
+++ b/bin/csh/err.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: err.c,v 1.11 1998/07/28 02:23:38 mycroft Exp $	*/
+/*	$NetBSD: err.c,v 1.12 1998/07/28 02:47:19 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)err.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: err.c,v 1.11 1998/07/28 02:23:38 mycroft Exp $");
+__RCSID("$NetBSD: err.c,v 1.12 1998/07/28 02:47:19 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -312,7 +312,7 @@ seterror(id, va_alist)
 #endif
 	if (id < 0 || id > sizeof(errorlist) / sizeof(errorlist[0]))
 	    id = ERR_INVALID;
-	vsnprintf(berr, sizeof(berr), errorlist[id], va);
+	(void) vsnprintf(berr, sizeof(berr), errorlist[id], va);
 	va_end(va);
 
 	seterr = strsave(berr);
diff --git a/bin/csh/exec.c b/bin/csh/exec.c
index 4c957d1c16bd..ddf33d36087b 100644
--- a/bin/csh/exec.c
+++ b/bin/csh/exec.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: exec.c,v 1.13 1998/07/28 02:23:38 mycroft Exp $	*/
+/*	$NetBSD: exec.c,v 1.14 1998/07/28 02:47:19 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)exec.c	8.3 (Berkeley) 5/23/95";
 #else
-__RCSID("$NetBSD: exec.c,v 1.13 1998/07/28 02:23:38 mycroft Exp $");
+__RCSID("$NetBSD: exec.c,v 1.14 1998/07/28 02:47:19 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -202,7 +202,7 @@ doexec(v, t)
      * this shell can still do subprocesses.
      */
     sigemptyset(&sigset);
-    sigprocmask(SIG_SETMASK, &sigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &sigset, NULL);
     /*
      * If no path, no words in path, or a / in the filename then restrict the
      * command search.
diff --git a/bin/csh/extern.h b/bin/csh/extern.h
index 6294c84d4987..5babafe45dcc 100644
--- a/bin/csh/extern.h
+++ b/bin/csh/extern.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: extern.h,v 1.11 1998/07/28 02:23:38 mycroft Exp $	*/
+/*	$NetBSD: extern.h,v 1.12 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -214,7 +214,6 @@ void	  lshift __P((Char **, int));
 int	  number __P((Char *));
 int	  prefix __P((Char *, Char *));
 Char	**saveblk __P((Char **));
-void	  setzero __P((char *, int));
 Char	 *strip __P((Char *));
 Char	 *quote __P((Char *));
 char	 *strsave __P((char *));
diff --git a/bin/csh/file.c b/bin/csh/file.c
index 6cabc7cdaaaf..8114286b646c 100644
--- a/bin/csh/file.c
+++ b/bin/csh/file.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: file.c,v 1.13 1997/07/04 21:24:00 christos Exp $	*/
+/*	$NetBSD: file.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)file.c	8.2 (Berkeley) 3/19/94";
 #else
-__RCSID("$NetBSD: file.c,v 1.13 1997/07/04 21:24:00 christos Exp $");
+__RCSID("$NetBSD: file.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -148,8 +148,8 @@ back_to_col_1()
     sigset_t sigset, osigset;
 
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGINT);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGINT);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     (void) tcgetattr(SHOUT, &tty);
     tty_normal = tty;
     tty.c_iflag &= ~INLCR;
@@ -157,7 +157,7 @@ back_to_col_1()
     (void) tcsetattr(SHOUT, TCSADRAIN, &tty);
     (void) write(SHOUT, "\r", 1);
     (void) tcsetattr(SHOUT, TCSADRAIN, &tty_normal);
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 }
 
 /*
@@ -173,8 +173,8 @@ pushback(string)
     char    c;
 
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGINT);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGINT);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     (void) tcgetattr(SHOUT, &tty);
     tty_normal = tty;
     tty.c_lflag &= ~(ECHOKE | ECHO | ECHOE | ECHOK | ECHONL | ECHOPRT | ECHOCTL);
@@ -183,7 +183,7 @@ pushback(string)
     for (p = string; (c = *p) != '\0'; p++)
 	(void) ioctl(SHOUT, TIOCSTI, (ioctl_t) & c);
     (void) tcsetattr(SHOUT, TCSADRAIN, &tty_normal);
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 }
 
 /*
@@ -430,11 +430,11 @@ free_items(items)
 	sigset_t sigset, osigset;\
 \
 	sigemptyset(&sigset);\
-	sigaddset(&sigset, SIGINT);\
-	sigprocmask(SIG_BLOCK, &sigset, &osigset);\
+	(void) sigaddset(&sigset, SIGINT);\
+	(void) sigprocmask(SIG_BLOCK, &sigset, &osigset);\
 	free_items(items);\
 	items = NULL;\
-	sigprocmask(SIG_SETMASK, &osigset, NULL);\
+	(void) sigprocmask(SIG_SETMASK, &osigset, NULL);\
 }
 
 /*
diff --git a/bin/csh/func.c b/bin/csh/func.c
index ae9e0cbcba43..b444111340ff 100644
--- a/bin/csh/func.c
+++ b/bin/csh/func.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: func.c,v 1.14 1998/07/28 02:23:38 mycroft Exp $	*/
+/*	$NetBSD: func.c,v 1.15 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)func.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: func.c,v 1.14 1998/07/28 02:23:38 mycroft Exp $");
+__RCSID("$NetBSD: func.c,v 1.15 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -157,8 +157,8 @@ doonintr(v, t)
     if (vv == 0) {
 	if (setintr) {
 	    sigemptyset(&sigset);
-	    sigaddset(&sigset, SIGINT);
-	    sigprocmask(SIG_BLOCK, &sigset, NULL);
+	    (void) sigaddset(&sigset, SIGINT);
+	    (void) sigprocmask(SIG_BLOCK, &sigset, NULL);
 	} else
 	    (void) signal(SIGINT, SIG_DFL);
 	gointr = 0;
@@ -220,7 +220,7 @@ doalias(v, t)
 	vp = adrof1(strip(p), &aliases);
 	if (vp) {
 	    blkpr(cshout, vp->vec);
-	    fputc('\n', cshout);
+	    (void) fputc('\n', cshout);
 	}
     }
     else {
@@ -549,13 +549,13 @@ preread()
     whyles->w_end.type = I_SEEK;
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
     }
 
     search(T_BREAK, 0, NULL);		/* read the expression in */
     if (setintr)
-	sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigprocmask(SIG_BLOCK, &sigset, NULL);
     btell(&whyles->w_end);
 }
 
@@ -618,19 +618,19 @@ dorepeat(v, kp)
     i = getn(v[1]);
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_BLOCK, &sigset, NULL);
     }
     lshift(v, 2);
     while (i > 0) {
 	if (setintr)
-	    sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	    (void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
 	reexecute(kp);
 	--i;
     }
     donefds();
     if (setintr)
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	(void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
 }
 
 void
@@ -964,8 +964,8 @@ xecho(sep, v)
 
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
     }
     v++;
     if (*v == 0)
@@ -998,7 +998,7 @@ xecho(sep, v)
     else
 	(void) fflush(cshout);
     if (setintr)
-	sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigprocmask(SIG_BLOCK, &sigset, NULL);
     if (gargv)
 	blkfree(gargv), gargv = 0;
 }
@@ -1018,8 +1018,8 @@ dosetenv(v, t)
 
 	if (setintr) {
 	    sigemptyset(&sigset);
-	    sigaddset(&sigset, SIGINT);
-	    sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	    (void) sigaddset(&sigset, SIGINT);
+	    (void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
 	}
 	for (ep = STR_environ; *ep; ep++)
 	    (void) fprintf(cshout, "%s\n", vis_str(*ep));
diff --git a/bin/csh/hist.c b/bin/csh/hist.c
index a91175e9d711..cb9d18d62a25 100644
--- a/bin/csh/hist.c
+++ b/bin/csh/hist.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: hist.c,v 1.10 1998/07/28 02:23:39 mycroft Exp $	*/
+/*	$NetBSD: hist.c,v 1.11 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)hist.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: hist.c,v 1.10 1998/07/28 02:23:39 mycroft Exp $");
+__RCSID("$NetBSD: hist.c,v 1.11 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -134,8 +134,8 @@ dohist(v, t)
 	return;
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
     }
     while (*++v && **v == '-') {
 	Char   *vp = *v;
diff --git a/bin/csh/lex.c b/bin/csh/lex.c
index 4015c644a701..e7cb5870a50e 100644
--- a/bin/csh/lex.c
+++ b/bin/csh/lex.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: lex.c,v 1.13 1998/07/28 02:23:39 mycroft Exp $	*/
+/*	$NetBSD: lex.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)lex.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: lex.c,v 1.13 1998/07/28 02:23:39 mycroft Exp $");
+__RCSID("$NetBSD: lex.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -1513,7 +1513,7 @@ again:
 		    goto again;
 		}
 		if (c > 0)
-		    memcpy(fbuf[buf] + off, ttyline, c * sizeof(Char));
+		    (void) memcpy(fbuf[buf] + off, ttyline, c * sizeof(Char));
 		numleft = 0;
 	    }
 	    else {
diff --git a/bin/csh/misc.c b/bin/csh/misc.c
index 6f9809fa97b7..9bbf22bd2604 100644
--- a/bin/csh/misc.c
+++ b/bin/csh/misc.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: misc.c,v 1.10 1998/07/28 02:23:39 mycroft Exp $	*/
+/*	$NetBSD: misc.c,v 1.11 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)misc.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: misc.c,v 1.10 1998/07/28 02:23:39 mycroft Exp $");
+__RCSID("$NetBSD: misc.c,v 1.11 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -69,17 +69,6 @@ any(s, c)
     return (0);
 }
 
-void
-setzero(cp, i)
-    char   *cp;
-    int     i;
-{
-    if (i != 0)
-	do
-	    *cp++ = 0;
-	while (--i);
-}
-
 char   *
 strsave(s)
     char *s;
diff --git a/bin/csh/proc.c b/bin/csh/proc.c
index d920d3220225..e843922d3f9d 100644
--- a/bin/csh/proc.c
+++ b/bin/csh/proc.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: proc.c,v 1.13 1998/07/28 02:23:39 mycroft Exp $	*/
+/*	$NetBSD: proc.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)proc.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: proc.c,v 1.13 1998/07/28 02:23:39 mycroft Exp $");
+__RCSID("$NetBSD: proc.c,v 1.14 1998/07/28 02:47:20 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -212,15 +212,15 @@ pnote()
 
     neednote = 0;
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
+    (void) sigaddset(&sigset, SIGCHLD);
     for (pp = proclist.p_next; pp != NULL; pp = pp->p_next) {
 	if (pp->p_flags & PNEEDNOTE) {
-	    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+	    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
 	    pp->p_flags &= ~PNEEDNOTE;
 	    flags = pprint(pp, NUMBER | NAME | REASON);
 	    if ((flags & (PRUNNING | PSTOPPED)) == 0)
 		pflush(pp);
-	    sigprocmask(SIG_SETMASK, &osigset, NULL);
+	    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 	}
     }
 }
@@ -239,8 +239,8 @@ pwait()
      * Here's where dead procs get flushed.
      */
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGCHLD);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     for (pp = (fp = &proclist)->p_next; pp != NULL; pp = (fp = pp)->p_next)
 	if (pp->p_pid == 0) {
 	    fp->p_next = pp->p_next;
@@ -251,7 +251,7 @@ pwait()
 	    xfree((ptr_t) pp);
 	    pp = fp;
 	}
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     pjwait(pcurrjob);
 }
 
@@ -282,12 +282,12 @@ pjwait(pp)
      */
     fp = pp;
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGCHLD);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     for (;;) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGCHLD);
-	sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGCHLD);
+	(void) sigprocmask(SIG_BLOCK, &sigset, NULL);
 	jobflags = 0;
 	do
 	    jobflags |= fp->p_flags;
@@ -299,10 +299,10 @@ pjwait(pp)
 		       fp->p_pid);
 #endif				/* JOBDEBUG */
 	sigset = osigset;
-	sigdelset(&sigset, SIGCHLD);
-	sigsuspend(&sigset);
+	(void) sigdelset(&sigset, SIGCHLD);
+	(void) sigsuspend(&sigset);
     }
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     if (tpgrp > 0)		/* get tty back */
 	(void) tcsetpgrp(FSHTTY, tpgrp);
     if ((jobflags & (PSIGNALED | PSTOPPED | PTIME)) ||
@@ -367,17 +367,17 @@ dowait(v, t)
 
     pjobs++;
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGCHLD);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
 loop:
     for (pp = proclist.p_next; pp; pp = pp->p_next)
 	if (pp->p_pid &&	/* pp->p_pid == pp->p_jobid && */
 	    pp->p_flags & PRUNNING) {
 	    sigemptyset(&sigset);
-	    sigsuspend(&sigset);
+	    (void) sigsuspend(&sigset);
 	    goto loop;
 	}
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     pjobs = 0;
 }
 
@@ -1058,10 +1058,10 @@ pkill(v, signum)
     Char   *cp;
 
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
+    (void) sigaddset(&sigset, SIGCHLD);
     if (setintr)
-	sigaddset(&sigset, SIGINT);
-    sigprocmask(SIG_BLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+    (void) sigprocmask(SIG_BLOCK, &sigset, NULL);
     gflag = 0, tglob(v);
     if (gflag) {
 	v = globall(v);
@@ -1129,7 +1129,7 @@ cont:
     }
     if (gargv)
 	blkfree(gargv), gargv = 0;
-    sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+    (void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
     if (err1) {
 	stderror(ERR_SILENT);
 	/* NOTREACHED */
@@ -1149,8 +1149,8 @@ pstart(pp, foregnd)
     long    jobflags = 0;
 
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGCHLD);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     np = pp;
     do {
 	jobflags |= np->p_flags;
@@ -1170,7 +1170,7 @@ pstart(pp, foregnd)
 	(void) tcsetpgrp(FSHTTY, pp->p_jobid);
     if (jobflags & PSTOPPED)
 	(void) kill(-pp->p_jobid, SIGCONT);
-    sigprocmask(SIG_SETMASK, &osigset, NULL);
+    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 }
 
 void
@@ -1326,13 +1326,13 @@ pfork(t, wanttty)
      * Hold SIGCHLD until we have the process installed in our table.
      */
     sigemptyset(&sigset);
-    sigaddset(&sigset, SIGCHLD);
-    sigprocmask(SIG_BLOCK, &sigset, &osigset);
+    (void) sigaddset(&sigset, SIGCHLD);
+    (void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     while ((pid = fork()) < 0)
 	if (setintr == 0)
 	    (void) sleep(FORKSLEEP);
 	else {
-	    sigprocmask(SIG_SETMASK, &osigset, NULL);
+	    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 	    stderror(ERR_NOPROC);
 	    /* NOTREACHED */
 	}
@@ -1377,7 +1377,7 @@ pfork(t, wanttty)
 	if (wanttty >= 0)
 	    (void) setpgid(pid, pcurrjob ? pcurrjob->p_jobid : pid);
 	palloc(pid, t);
-	sigprocmask(SIG_SETMASK, &osigset, NULL);
+	(void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     }
 
     return (pid);
@@ -1413,10 +1413,10 @@ pgetty(wanttty, pgrp)
      */
     if (wanttty > 0) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGTSTP);
-	sigaddset(&sigset, SIGTTIN);
-	sigaddset(&sigset, SIGTTOU);
-	sigprocmask(SIG_BLOCK, &sigset, &osigset);
+	(void) sigaddset(&sigset, SIGTSTP);
+	(void) sigaddset(&sigset, SIGTTIN);
+	(void) sigaddset(&sigset, SIGTTOU);
+	(void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
     }
     /*
      * From: Michael Schroeder <mlschroe@immd4.informatik.uni-erlangen.de>
@@ -1433,7 +1433,7 @@ pgetty(wanttty, pgrp)
 
     if (wanttty > 0) {
 	(void) tcsetpgrp(FSHTTY, pgrp);
-	sigprocmask(SIG_SETMASK, &osigset, NULL);
+	(void) sigprocmask(SIG_SETMASK, &osigset, NULL);
     }
 
     if (tpgrp > 0)
diff --git a/bin/csh/sem.c b/bin/csh/sem.c
index 816e2c2d8a47..e5644dd1a247 100644
--- a/bin/csh/sem.c
+++ b/bin/csh/sem.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: sem.c,v 1.12 1998/07/28 02:23:39 mycroft Exp $	*/
+/*	$NetBSD: sem.c,v 1.13 1998/07/28 02:47:21 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)sem.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: sem.c,v 1.12 1998/07/28 02:23:39 mycroft Exp $");
+__RCSID("$NetBSD: sem.c,v 1.13 1998/07/28 02:47:21 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -217,14 +217,14 @@ execute(t, wanttty, pipein, pipeout)
 		 */
 		if (wanttty >= 0 && !nosigchld) {
 		    sigemptyset(&sigset);
-		    sigaddset(&sigset, SIGCHLD);
-		    sigprocmask(SIG_BLOCK, &sigset, &csigset);
+		    (void) sigaddset(&sigset, SIGCHLD);
+		    (void) sigprocmask(SIG_BLOCK, &sigset, &csigset);
 		    nosigchld = 1;
 		}
 
 		pid = pfork(t, wanttty);
 		if (pid == 0 && nosigchld) {
-		    sigprocmask(SIG_SETMASK, &csigset, NULL);
+		    (void) sigprocmask(SIG_SETMASK, &csigset, NULL);
 		    nosigchld = 0;
 		}
 		else if (pid != 0 && (t->t_dflg & F_AMPERSAND))
@@ -246,14 +246,14 @@ execute(t, wanttty, pipein, pipeout)
 		 */
 		if (wanttty >= 0 && !nosigchld && !noexec) {
 		    sigemptyset(&sigset);
-		    sigaddset(&sigset, SIGCHLD);
-		    sigprocmask(SIG_BLOCK, &sigset, &csigset);
+		    (void) sigaddset(&sigset, SIGCHLD);
+		    (void) sigprocmask(SIG_BLOCK, &sigset, &csigset);
 		    nosigchld = 1;
 		}
 		sigemptyset(&sigset);
-		sigaddset(&sigset, SIGCHLD);
-		sigaddset(&sigset, SIGINT);
-		sigprocmask(SIG_BLOCK, &sigset, &osigset);
+		(void) sigaddset(&sigset, SIGCHLD);
+		(void) sigaddset(&sigset, SIGINT);
+		(void) sigprocmask(SIG_BLOCK, &sigset, &osigset);
 		ochild = child;
 		osetintr = setintr;
 		ohaderr = haderr;
@@ -271,7 +271,7 @@ execute(t, wanttty, pipein, pipeout)
 		pid = vfork();
 
 		if (pid < 0) {
-		    sigprocmask(SIG_SETMASK, &osigset, NULL);
+		    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 		    stderror(ERR_NOPROC);
 		    /* NOTREACHED */
 		}
@@ -299,7 +299,7 @@ execute(t, wanttty, pipein, pipeout)
 		    Vt = 0;
 		    /* this is from pfork() */
 		    palloc(pid, t);
-		    sigprocmask(SIG_SETMASK, &osigset, NULL);
+		    (void) sigprocmask(SIG_SETMASK, &osigset, NULL);
 		}
 		else {		/* child */
 		    /* this is from pfork() */
@@ -307,7 +307,7 @@ execute(t, wanttty, pipein, pipeout)
 		    bool    ignint = 0;
 
 		    if (nosigchld) {
-		        sigprocmask(SIG_SETMASK, &csigset, NULL);
+		        (void) sigprocmask(SIG_SETMASK, &csigset, NULL);
 			nosigchld = 0;
 		    }
 
@@ -364,7 +364,7 @@ execute(t, wanttty, pipein, pipeout)
 	    }
 	    if ((t->t_dflg & F_PIPEOUT) == 0) {
 		if (nosigchld) {
-		    sigprocmask(SIG_SETMASK, &csigset, NULL);
+		    (void) sigprocmask(SIG_SETMASK, &csigset, NULL);
 		    nosigchld = 0;
 		}
 		if ((t->t_dflg & F_AMPERSAND) == 0)
diff --git a/bin/csh/set.c b/bin/csh/set.c
index 2f4f9f959e89..2ab27810da9b 100644
--- a/bin/csh/set.c
+++ b/bin/csh/set.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: set.c,v 1.11 1998/07/28 02:23:40 mycroft Exp $	*/
+/*	$NetBSD: set.c,v 1.12 1998/07/28 02:47:21 mycroft Exp $	*/
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)set.c	8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: set.c,v 1.11 1998/07/28 02:23:40 mycroft Exp $");
+__RCSID("$NetBSD: set.c,v 1.12 1998/07/28 02:47:21 mycroft Exp $");
 #endif
 #endif /* not lint */
 
@@ -854,8 +854,8 @@ plist(p)
 
     if (setintr) {
 	sigemptyset(&sigset);
-	sigaddset(&sigset, SIGINT);
-	sigprocmask(SIG_UNBLOCK, &sigset, NULL);
+	(void) sigaddset(&sigset, SIGINT);
+	(void) sigprocmask(SIG_UNBLOCK, &sigset, NULL);
     }
 
     for (;;) {