more void cast removal

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>

178 files changed, 1157 insertions, 1157 deletions

diff --git a/src/helpers/sigtool b/src/helpers/sigtool
index 6d2dadd4..85f3ace4 100644
--- a/src/helpers/sigtool
+++ b/src/helpers/sigtool
@@ -81,9 +81,9 @@ for sig in $std_sigs1 $std_sigs2
 do
 	cat <<!EOF
 #ifdef $sig
-	(void) printf(" %d", $sig);
+	printf(" %d", $sig);
 #else
-	(void) printf(" $sig");
+	printf(" $sig");
 #endif
 !EOF
 done > $tmp1_c
@@ -92,9 +92,9 @@ for sig in $spec_sigs
 do
 	cat <<!EOF
 #ifdef $sig
-	(void) printf(" %d", $sig);
+	printf(" %d", $sig);
 #else
-	(void) printf(" $sig");
+	printf(" $sig");
 #endif
 !EOF
 done > $tmp2_c
@@ -104,21 +104,21 @@ cat > $tmp3_c <<!EOF
 #include <signal.h>
 int main()
 {
-	(void) printf("SH_STD_SIGNALS =");
+	printf("SH_STD_SIGNALS =");
 #include "$tmp1_c"
-	(void) printf("\nSH_SPEC_SIGNALS =");
+	printf("\nSH_SPEC_SIGNALS =");
 #include "$tmp2_c"
-	(void) printf("\nSH_NSIG = ");
+	printf("\nSH_NSIG = ");
 #ifdef NSIG
-	(void) printf("%d", NSIG);
+	printf("%d", NSIG);
 #else
 #  ifdef _NSIG
-	(void) printf("%d", _NSIG);
+	printf("%d", _NSIG);
 #  else
-	(void) printf("NSIG");
+	printf("NSIG");
 #  endif
 #endif
-	(void) printf("\n");
+	printf("\n");
 	return(0);
 }
 !EOF
diff --git a/src/tet3/apilib/dconfig.c b/src/tet3/apilib/dconfig.c
index 832ee2bb..6306dc21 100644
--- a/src/tet3/apilib/dconfig.c
+++ b/src/tet3/apilib/dconfig.c
@@ -150,7 +150,7 @@ TET_IMPORT void tet_config()
 	/* open the file */
 	if ((fp = fopen(file, "r")) == (FILE *) 0) {
 		err = errno;
-		(void) sprintf(msg, "could not open config file \"%.*s\"",
+		sprintf(msg, "could not open config file \"%.*s\"",
 			MAXPATH, file);
 		tet_error(err, msg);
 		return;
@@ -181,7 +181,7 @@ TET_IMPORT void tet_config()
 		if (p < buf)
 			continue;
 		if (!tet_equindex(buf)) {
-			(void) sprintf(msg, fmt, lcount, MAXPATH, file);
+			sprintf(msg, fmt, lcount, MAXPATH, file);
 			tet_error(0, msg);
 			continue;
 		}
@@ -195,6 +195,6 @@ TET_IMPORT void tet_config()
 	}
 
 	/* finally, close the file and return */
-	(void) fclose(fp);
+	fclose(fp);
 }
 
diff --git a/src/tet3/apilib/dresfile.c b/src/tet3/apilib/dresfile.c
index 8cf9451c..70aacfcc 100644
--- a/src/tet3/apilib/dresfile.c
+++ b/src/tet3/apilib/dresfile.c
@@ -364,7 +364,7 @@ char *data;
 
 	if (tet_minfoline(&data, 1) != 0)
 	{
-		(void) sprintf(errbuf, fmt, data);
+		sprintf(errbuf, fmt, data);
 		tet_error(-tet_errno, errbuf);
 		tet_exit(EXIT_FAILURE);
 	}
@@ -414,7 +414,7 @@ int nlines;
 			continue;
 
 		/* generate the info line preamble and format the line */
-		(void) sprintf(header, "%d|%ld %d %03d%05ld %ld %ld|", 
+		sprintf(header, "%d|%ld %d %03d%05ld %ld %ld|",
 			TET_JNL_TC_INFO, tet_activity, tet_thistest, 
 			tet_mysysid, tet_context, tet_block, tet_sequence++);
 		tet_msgform(header, lines[lnum], linebuf);
@@ -441,7 +441,7 @@ int nlines;
 			API_UNLOCK;
 			return(-1);
 		}
-		(void) strcpy(&outbuf[bufpos], linebuf);
+		strcpy(&outbuf[bufpos], linebuf);
 
 		/* remember offset from start of outbuf */
 		/* (can't save pointer, as outbuf may move when grown) */
@@ -537,7 +537,7 @@ va_list ap;
 	else
 	{
 		inbuflen = vfprintf(fp, format, ap) + 1;
-		(void) fclose(fp);
+		fclose(fp);
 
 		if (inbuflen <= (int) sizeof(defaultbuf))
 		{
@@ -591,7 +591,7 @@ va_list ap;
 			len = endp - inptr;
 
 		/* generate the info line preamble */
-		(void) sprintf(linebuf, "%d|%ld %d %03d%05ld %ld %ld|", 
+		sprintf(linebuf, "%d|%ld %d %03d%05ld %ld %ld|",
 			TET_JNL_TC_INFO, tet_activity, tet_thistest, 
 			tet_mysysid, tet_context, tet_block, tet_sequence++);
 
@@ -616,7 +616,7 @@ va_list ap;
 
 		/* assemble the complete line and add it to output buffer */
 
-		(void) strncat(linebuf, inptr, (size_t)len);
+		strncat(linebuf, inptr, (size_t)len);
 		if (*(inptr += len) == '\n')
 			inptr++; /* now points to start of next line */
 		len = strlen(linebuf) + 1; /* length including the null */
@@ -645,7 +645,7 @@ va_list ap;
 			API_UNLOCK;
 			return(-1);
 		}
-		(void) strcpy(&outbuf[outpos], linebuf);
+		strcpy(&outbuf[outpos], linebuf);
 
 		/* remember offset from start of outbuf */
 		/* (can't save pointer, as outbuf may move when grown) */
@@ -746,7 +746,7 @@ int result;
 
 	if (tet_thistest == 0)
 	{
-		(void) sprintf(errmsg,
+		sprintf(errmsg,
 			"tet_result(%d) called from test case startup or cleanup function",
 			result);
 		tet_error(0, errmsg);
@@ -770,7 +770,7 @@ int result;
 			tet_combined_ok = 0;
 			break;
 		}
-		(void) sprintf(errmsg,
+		sprintf(errmsg,
 			"tet_result(): can't send result %d to XRESD",
 			result);
 		tet_error(tet_xderrno, errmsg);
@@ -790,7 +790,7 @@ int result;
 	resname = tet_get_code(result, (int *)NULL);
 	if (resname == NULL)
 	{
-		(void) sprintf(errmsg,
+		sprintf(errmsg,
 			"INVALID result code %d passed to tet_result()",
 			result);
 		tet_error(0, errmsg);
@@ -932,20 +932,20 @@ char **msgs;
 	for (; nmsgs > 0; nmsgs--, msgs++) {
 		if (!*msgs && !errnum)
 			continue;
-		(void) fprintf(stderr, "%s: %s",
+		fprintf(stderr, "%s: %s",
 			tet_pname, *msgs ? *msgs : "(NULL)");
 		if (errnum > 0) {
-			(void) fprintf(stderr, ", errno = %d (%s)", 
+			fprintf(stderr, ", errno = %d (%s)",
 				errnum, tet_errname(errnum));
 		}
 		else if (errnum < 0) {
-			(void) fprintf(stderr, ", reply code = %s",
+			fprintf(stderr, ", reply code = %s",
 				tet_ptrepcode(errnum));
 		}
-		(void) fprintf(stderr, "\n");
+		fprintf(stderr, "\n");
 		errnum = 0;
 	}
-	(void) fflush(stderr);
+	fflush(stderr);
 }
 
 /*
@@ -1073,17 +1073,17 @@ char *msg, *outbuf;
 	** put errno first so as to avoid it being lost by truncation
 	*/
 	p = header;
-	(void) sprintf(p, "%d|%ld|system %d", TET_JNL_TCM_INFO,
+	sprintf(p, "%d|%ld|system %d", TET_JNL_TCM_INFO,
 		tet_activity, tet_mysysid);
 	p += strlen(p);
 	if (errnum > 0)
-		(void) sprintf(p, ", errno = %d (%s)",
+		sprintf(p, ", errno = %d (%s)",
 			errnum, tet_errname(errnum));
 	else if (errnum < 0)
-		(void) sprintf(p, ", reply code = %s", 
+		sprintf(p, ", reply code = %s",
 			tet_ptrepcode(errnum));
 	p += strlen(p);
-	(void) sprintf(p, ": ");
+	sprintf(p, ": ");
 
 	/* Check the message format and write it into outbuf */
 	tet_msgform(header, msg ? msg : "(NULL)", outbuf);
@@ -1180,7 +1180,7 @@ char *header, *data, *outbuf;
 
 	/* see if the line was truncated */
 	if (*p1) {
-		(void) sprintf(errmsg, fmt, (int) (sizeof errmsg - sizeof fmt),
+		sprintf(errmsg, fmt, (int) (sizeof errmsg - sizeof fmt),
 			header);
 		tet_error(0, errmsg);
 	}
@@ -1207,7 +1207,7 @@ int *abortflag;
 		/* file name is specified by TET_CODE communication variable */
 		fname = getenv("TET_CODE");
 		if (fname != NULL && *fname != '\0')
-			(void) tet_readrescodes(fname);
+			tet_readrescodes(fname);
 		read_done++;
 	}
 
diff --git a/src/tet3/apilib/exit.c b/src/tet3/apilib/exit.c
index 963ca065..d5200a9d 100644
--- a/src/tet3/apilib/exit.c
+++ b/src/tet3/apilib/exit.c
@@ -120,14 +120,14 @@ TET_IMPORT void tet_logoff()
 	while (tet_ptab) {
 		pp = tet_ptab;
 		TET_SIGSAFE_START;
-		(void) tet_ti_logoff(pp, 0);
+		tet_ti_logoff(pp, 0);
 		tet_ptrm(pp);
 		tet_ptfree(pp);
 		TET_SIGSAFE_END;
 	}
 
-	(void) tet_sdlogoff(0);
-	(void) tet_xdlogoff();
+	tet_sdlogoff(0);
+	tet_xdlogoff();
 
 	tet_ts_cleanup();
 
diff --git a/src/tet3/apilib/getsysid.c b/src/tet3/apilib/getsysid.c
index bc264ecd..06687174 100644
--- a/src/tet3/apilib/getsysid.c
+++ b/src/tet3/apilib/getsysid.c
@@ -94,7 +94,7 @@ struct tet_sysent *sysp;
 #if TET_SNAMELEN != SNAMELEN
 #error "TET_SNAMELEN != SNAMELEN"
 #endif
-	(void) strncpy(sysp->ts_name, entp->sy_name, sizeof(sysp->ts_name));
+	strncpy(sysp->ts_name, entp->sy_name, sizeof(sysp->ts_name));
 	sysp->ts_name[sizeof(sysp->ts_name) - 1] = '\0';
 
 	/* ignore the sy_tccd */
diff --git a/src/tet3/apilib/remexec.c b/src/tet3/apilib/remexec.c
index 444ec2ed..44fe17bf 100644
--- a/src/tet3/apilib/remexec.c
+++ b/src/tet3/apilib/remexec.c
@@ -176,10 +176,10 @@ register char **argv;
 		tet_errno = TET_ER_ERR;
 		return(-1);
 	}
-	(void) sprintf(thistest, "%d", tet_thistest);
-	(void) sprintf(activity, "%ld", tet_activity);
-	(void) sprintf(context, "%ld", tet_context);
-	(void) sprintf(block, "%ld", tet_block);
+	sprintf(thistest, "%d", tet_thistest);
+	sprintf(activity, "%ld", tet_activity);
+	sprintf(context, "%ld", tet_context);
+	sprintf(block, "%ld", tet_block);
 	*newargv = file;
 	*(newargv + TET_TCMC_THISTEST) = thistest;
 	*(newargv + TET_TCMC_ACTIVITY) = activity;
@@ -275,8 +275,8 @@ char *file, **argv;
 	/* do an auto-sync with the new process, kill the process and wait
 		for it a bit if this fails */
 	if (tet_sdasync(snid, tet_xrid, SV_EXEC_SPNO, SV_YES, SV_EXEC_TIMEOUT, (struct synreq *) 0, (int *) 0) < 0) {
-		(void) tet_tckill(sysid, pid, SIGTERM);
-		(void) tet_tcwait(sysid, pid, 10, (int *) 0);
+		tet_tckill(sysid, pid, SIGTERM);
+		tet_tcwait(sysid, pid, 10, (int *) 0);
 		errno = ENOEXEC;
 		tet_errno = -tet_sderrno;
 		return(-1L);
@@ -394,14 +394,14 @@ int *lconfp, *nconfp;
 
 	/* open the master config file */
 	if ((fid = tet_xdfopen(cfname)) < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, cfname);
+		sprintf(msg, fmt, MAXPATH, cfname);
 		error(0, msg, tet_ptrepcode(tet_xderrno));
 		return(-1);
 	}
 
 	/* get the config lines and close the file */
 	rc = getcf3(fid, confp, lconfp, nconfp);
-	(void) tet_xdfclose(fid);
+	tet_xdfclose(fid);
 
 	return(rc);
 }
@@ -569,14 +569,14 @@ int sysid;
 	for (ep = envs; ep < &envs[Nenvs]; ep++)
 		*ep = (char *) 0;
 	ep = &envs[0];
-	(void) sprintf(buf, "%s=%.*s",
+	sprintf(buf, "%s=%.*s",
 		tetroot_name,
 		(int) sizeof buf - (int) sizeof tetroot_name - 1,
 		tetroot_value);
 	if ((*ep++ = tet_strstore(buf)) == (char *) 0)
 		rc = -1;
 	if (!rc && tetexec_value) {
-		(void) sprintf(buf, "%s=%.*s",
+		sprintf(buf, "%s=%.*s",
 			tetexec_name,
 			(int) sizeof buf - (int) sizeof tetexec_name - 1,
 			tetexec_value);
@@ -598,7 +598,7 @@ int sysid;
 		return(rc);
 
 	/* construct target system exec config file name and send it to TCCD */
-	(void) sprintf(buf, "%.*s/%s",
+	sprintf(buf, "%.*s/%s",
 		(int) sizeof buf - (int) sizeof ecfname - 1,
 			tsroot_value, ecfname);
 	TRACE3(tet_Ttcm, 6, "send exec config file name \"%s\" to system %s",
@@ -640,7 +640,7 @@ int sysid;
 	for (p1 = cconf, n = ncconf; n > 0; p1++, n--) {
 		if (tet_remvar(*p1, -1) != *p1)
 			continue;
-		(void) sprintf(buf, "TET_REM%03d_%.*s", sysid % 1000,
+		sprintf(buf, "TET_REM%03d_%.*s", sysid % 1000,
 			(int) sizeof buf - 12, *p1);
 		if (BUFCHK((char **) &tconf, &ltconf, (int) ((ntconf + 1) * sizeof *tconf)) < 0)
 			return(-1);
diff --git a/src/tet3/apilib/remtime.c b/src/tet3/apilib/remtime.c
index 9794c553..e4d90f31 100644
--- a/src/tet3/apilib/remtime.c
+++ b/src/tet3/apilib/remtime.c
@@ -83,7 +83,7 @@ time_t *tp;
 	/* do something sensible if sysid is the local system */
 	if (sysid == tet_mysysid)
 	{
-		(void) time(tp);
+		time(tp);
 		API_UNLOCK;
 		return 0;
 	}
diff --git a/src/tet3/apilib/sync.c b/src/tet3/apilib/sync.c
index e20ad757..53675e04 100644
--- a/src/tet3/apilib/sync.c
+++ b/src/tet3/apilib/sync.c
@@ -247,7 +247,7 @@ struct tet_synmsg *msgp;
 			char buf[100];
 			switch (tet_sderrno) {
 			case ER_DONE:
-				(void) sprintf(buf,
+				sprintf(buf,
 				    "sync event already happened, syncptno = %ld",
 				    syncptno);
 				tet_error(0, buf);
@@ -362,19 +362,19 @@ int nsys;
 	** written out all at once;
 	** if this is not possible they are written out one-at-a-time
 	*/
-	(void) sprintf(buf, "sync operation failed, syncptno = %ld, ",
+	sprintf(buf, "sync operation failed, syncptno = %ld, ",
 		syncptno);
 	p = buf + strlen(buf);
 	if (tet_errno == TET_ER_SYNCERR)
-		(void) sprintf(p, "%sother system%s did not sync or timed out",
+		sprintf(p, "%sother system%s did not sync or timed out",
 			nsys > 1 ? "one or more of the " : nullstr,
 			nsys == 1 ? nullstr : sstr);
 	else if (tet_errno == TET_ER_TIMEDOUT)
-		(void) sprintf(p, "request timed out");
+		sprintf(p, "request timed out");
 	else if (tet_errno >= 0 && tet_errno < tet_nerr)
-		(void) sprintf(p, "%s", tet_errlist[tet_errno]);
+		sprintf(p, "%s", tet_errlist[tet_errno]);
 	else
-		(void) sprintf(p, "tet_errno = %d (unknown value)", tet_errno);
+		sprintf(p, "tet_errno = %d (unknown value)", tet_errno);
 	if (lines)
 		*lp++ = tet_strstore(buf);
 	else
@@ -382,7 +382,7 @@ int nsys;
 
 	/* generate the per-system diagnostics */
 	for (tsp = statp; tsp < statp + nsys; tsp++) {
-		(void) sprintf(buf, "system = %2d, state = %s",
+		sprintf(buf, "system = %2d, state = %s",
 			tsp->tsy_sysid, tet_systate(tsp->tsy_state));
 		if (lines)
 			*lp++ = tet_strstore(buf);
diff --git a/src/tet3/apilib/tet_exec.c b/src/tet3/apilib/tet_exec.c
index 7a11bc00..c4893276 100644
--- a/src/tet3/apilib/tet_exec.c
+++ b/src/tet3/apilib/tet_exec.c
@@ -389,8 +389,8 @@ char *file, *argv[], *envp[];
 #  ifndef TET_LITE	/* -START-LITE-CUT- */
 		API_LOCK;
 		if (tet_xdlogon() == 0)
-			(void) tet_xdxrsend(tet_xrid);
-		(void) tet_sdlogon();
+			tet_xdxrsend(tet_xrid);
+		tet_sdlogon();
 		API_UNLOCK;
 #  endif		/* -END-LITE-CUT- */
 		switch (errsave) {
diff --git a/src/tet3/apilib/tet_fork.c b/src/tet3/apilib/tet_fork.c
index ad0ac259..1106fa31 100644
--- a/src/tet3/apilib/tet_fork.c
+++ b/src/tet3/apilib/tet_fork.c
@@ -253,13 +253,13 @@ int sig;
 	struct sigaction sa;
 
 	if (tet_child > 0)
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 
 	sa.sa_handler = SIG_DFL;
 	sa.sa_flags = 0; 
-	(void) sigemptyset(&sa.sa_mask); 
-	(void) sigaction(SIGTERM, &sa, (struct sigaction *)NULL);
-	(void) kill(getpid(), SIGTERM);
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGTERM, &sa, (struct sigaction *)NULL);
+	kill(getpid(), SIGTERM);
 }
 
 #  ifdef FORK1
@@ -288,8 +288,8 @@ int	exitvals;
 #    endif
 #  endif /* TET_THREADS */
 
-	(void) fflush(stdout);
-	(void) fflush(stderr);
+	fflush(stdout);
+	fflush(stderr);
 
 	/* Save old value of tet_child in case of recursive calls
 	   to tet_fork().  RESTORE tet_child BEFORE ALL RETURNS. */
@@ -342,10 +342,10 @@ int	exitvals;
 #    else
 		TET_MUTEX_UNLOCK(&tet_top_mtx);
 #    endif
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
 #  endif /* TET_THREADS */
 
-		(void) sprintf(buf,
+		sprintf(buf,
 #  ifdef FORK1
 #    ifdef TET_POSIX_THREADS
 			"fork() failed in tet_fork1() - errno %d (%s)",
@@ -386,7 +386,7 @@ int	exitvals;
 					new_sa.sa_handler != SIG_IGN)
 				{
 					new_sa.sa_handler = SIG_DFL;
-					(void) sigaction(i, &new_sa,
+					sigaction(i, &new_sa,
 						(struct sigaction *)NULL);
 				}
 			}
@@ -398,8 +398,8 @@ int	exitvals;
 
 		/* logon again to XRESD and SYNCD */
 		if (tet_xdlogon() == 0)
-			(void) tet_xdxrsend(tet_xrid);
-		(void) tet_sdlogon();
+			tet_xdxrsend(tet_xrid);
+		tet_sdlogon();
 #  endif /* -END-LITE-CUT- */
 
 #  ifdef TET_THREADS
@@ -408,7 +408,7 @@ int	exitvals;
 #    else
 		TET_MUTEX_UNLOCK(&tet_top_mtx);
 #    endif
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
 #  endif /* TET_THREADS */
 
 		/* change context to distinguish output from parent's */
@@ -438,7 +438,7 @@ int	exitvals;
 		new_sa.sa_handler == SIG_DFL)
 	{
 		new_sa.sa_handler = sig_term;
-		(void) sigaction(SIGTERM, &new_sa, (struct sigaction *)NULL);
+		sigaction(SIGTERM, &new_sa, (struct sigaction *)NULL);
 	}
 
 #  ifdef TET_THREADS
@@ -447,7 +447,7 @@ int	exitvals;
 #    else
 	TET_MUTEX_UNLOCK(&tet_top_mtx);
 #    endif
-	(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
+	TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
 #  endif /* TET_THREADS */
 
 	if (parentproc != NULL)
@@ -465,7 +465,7 @@ int	exitvals;
 
 	if (waittime < 0)
 	{
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 		tet_child = savchild;
 		return 0;
 	}
@@ -477,7 +477,7 @@ int	exitvals;
 		new_aa.waittime = waittime; 
 		new_aa.sa.sa_handler = alrm; 
 		new_aa.sa.sa_flags = 0; 
-		(void) sigemptyset(&new_aa.sa.sa_mask); 
+		sigemptyset(&new_aa.sa.sa_mask);
 		alrm_flag = 0; 
 		if (tet_set_alarm(&new_aa, &old_aa) == -1)
 			fatal(errno, "failed to set alarm", (char *)0);
@@ -487,7 +487,7 @@ int	exitvals;
 	err = errno; 
 
 	if (waittime > 0)
-		(void) tet_clr_alarm(&old_aa);
+		tet_clr_alarm(&old_aa);
 
 	/* check child wait status shows valid exit code, if not
 	   report wait status and give UNRESOLVED result */
@@ -495,13 +495,13 @@ int	exitvals;
 	if (rtval == -1)
 	{
 		if (alrm_flag > 0)
-			(void) sprintf(buf, "child process timed out");
+			sprintf(buf, "child process timed out");
 		else
-			(void) sprintf(buf, "waitpid() failed - errno %d (%s)",
+			sprintf(buf, "waitpid() failed - errno %d (%s)",
 				err, tet_errname(err));
 		tet_infoline(buf);
 		tet_result(TET_UNRESOLVED);
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 
 		switch (err)
 		{
@@ -534,7 +534,7 @@ int	exitvals;
 		}
 		else
 		{
-			(void) sprintf(buf,
+			sprintf(buf,
 				"child process gave unexpected exit code %d",
 				status);
 			tet_infoline(buf);
@@ -543,7 +543,7 @@ int	exitvals;
 	else if (WIFSIGNALED(status))
 	{
 		status = WTERMSIG(status);
-		(void) sprintf(buf,
+		sprintf(buf,
 			"child process was terminated by signal %d (%s)",
 			status, tet_signame(status));
 		tet_infoline(buf);
@@ -551,15 +551,15 @@ int	exitvals;
 	else if (WIFSTOPPED(status))
 	{
 		status = WSTOPSIG(status);
-		(void) sprintf(buf,
+		sprintf(buf,
 			"child process was stopped by signal %d (%s)",
 			status, tet_signame(status));
 		tet_infoline(buf);
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 	}
 	else
 	{
-		(void) sprintf(buf,
+		sprintf(buf,
 			"child process returned bad wait status (%#x)", status);
 		tet_infoline(buf);
 	}
@@ -589,7 +589,7 @@ unsigned int timeout;
 	new_aa.waittime = timeout; 
 	new_aa.sa.sa_handler = alrm; 
 	new_aa.sa.sa_flags = 0; 
-	(void) sigemptyset(&new_aa.sa.sa_mask); 
+	sigemptyset(&new_aa.sa.sa_mask);
 
 	for (count = 0; count < 2; count++)
 	{
@@ -604,7 +604,7 @@ unsigned int timeout;
 			fatal(errno, "failed to set alarm", (char *)0);
 		pid = waitpid(child, &status, 0);
 		err = errno;
-		(void) tet_clr_alarm(&old_aa);
+		tet_clr_alarm(&old_aa);
 
 		if (pid == child)
 		{
diff --git a/src/tet3/apilib/tet_spawn.c b/src/tet3/apilib/tet_spawn.c
index 1cea1018..9308b856 100644
--- a/src/tet3/apilib/tet_spawn.c
+++ b/src/tet3/apilib/tet_spawn.c
@@ -131,13 +131,13 @@ int sig;
 	struct sigaction sa;
 
 	if (childpid > 0)
-		(void) tet_killw(childpid, KILLWAIT);
+		tet_killw(childpid, KILLWAIT);
 
 	sa.sa_handler = SIG_DFL;
 	sa.sa_flags = 0; 
-	(void) sigemptyset(&sa.sa_mask); 
-	(void) sigaction(SIGTERM, &sa, (struct sigaction *)NULL);
-	(void) kill(getpid(), SIGTERM);
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGTERM, &sa, (struct sigaction *)NULL);
+	kill(getpid(), SIGTERM);
 }
 
 
@@ -158,8 +158,8 @@ char *envp[];
 		return(-1);
 	}
 
-	(void) fflush(stdout);
-	(void) fflush(stderr);
+	fflush(stdout);
+	fflush(stderr);
 
 
 #  ifdef TET_THREADS
@@ -187,7 +187,7 @@ char *envp[];
 #  ifdef TET_THREADS
 	/* release all the mutexes and restore the signal mask */
 	tet_mtx_unlock();
-	(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
+	TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
 #  endif /* TET_THREADS */
 
 
@@ -226,9 +226,9 @@ char *envp[];
 
 	/* close the pipe and return */
 	if (pfd[0] >= 0)
-		(void) close(pfd[0]);
+		close(pfd[0]);
 	if (pfd[1] >= 0)
-		(void) close(pfd[1]);
+		close(pfd[1]);
 	return(pid);
 }
 
@@ -279,7 +279,7 @@ int pfd[];
 		tet_mypid = getpid();
 
 		/* close the read side of the pipe */
-		(void) close(pfd[0]);
+		close(pfd[0]);
 		pfd[0] = -1;
 
 #  ifdef TET_THREADS
@@ -300,7 +300,7 @@ int pfd[];
 				new_sa.sa_handler != SIG_IGN)
 			{
 				new_sa.sa_handler = SIG_DFL;
-				(void) sigaction(i, &new_sa,
+				sigaction(i, &new_sa,
 					(struct sigaction *)NULL);
 			}
 		}
@@ -310,12 +310,12 @@ int pfd[];
 		tet_disconnect();
 		/* logon again to XRESD */
 		if (tet_xdlogon() == 0)
-			(void) tet_xdxrsend(tet_xrid);
+			tet_xdxrsend(tet_xrid);
 #  endif /* -END-LITE-CUT- */
 
 #  ifdef TET_THREADS
 		tet_mtx_unlock();
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *)0);
 #  endif /* TET_THREADS */
 
 		/* change context to distinguish output from parent's */
@@ -330,19 +330,19 @@ int pfd[];
 
 		/* execute specified file */
 		errno = 0;
-		(void) tet_exec(file, argv, envp);
+		tet_exec(file, argv, envp);
 		if (errno == ENOMEM)
 		{
 			/* This message is to distinguish malloc()
 			   failure from exec() failure */
 			error(errno, "tet_exec() failed:", file);
-			(void) fflush(stderr);
+			fflush(stderr);
 		}
 		/* send tet_errno to the parent process */
 		if ((rc = write(pfd[1], (void *) &tet_errno, sizeof tet_errno)) != sizeof tet_errno)
 			error(rc < 0 ? errno : 0,
 				"pipe write error in tet_spawn()", (char *) 0);
-		(void) close(pfd[1]);
+		close(pfd[1]);
 		pfd[1] = -1;
 		tet_logoff();
 		_exit(127);
@@ -351,7 +351,7 @@ int pfd[];
 	/* parent process */
 
 	/* close the write side of the pipe */
-	(void) close(pfd[1]);
+	close(pfd[1]);
 	pfd[1] = -1;
 
 	/*
@@ -378,7 +378,7 @@ int pfd[];
 			new_sa.sa_handler == SIG_DFL)
 		{
 			new_sa.sa_handler = sig_term;
-			(void) sigaction(SIGTERM, &new_sa,
+			sigaction(SIGTERM, &new_sa,
 				(struct sigaction *)NULL);
 		}
 	}
@@ -462,7 +462,7 @@ int *statp;
 			new_sa.sa_handler == sig_term)
 		{
 			new_sa.sa_handler = SIG_DFL;
-			(void) sigaction(SIGTERM, &new_sa,
+			sigaction(SIGTERM, &new_sa,
 				(struct sigaction *)NULL);
 		}
 
diff --git a/src/tet3/apithr/api_lock.c b/src/tet3/apithr/api_lock.c
index 7b2444fe..18bc9f7f 100644
--- a/src/tet3/apithr/api_lock.c
+++ b/src/tet3/apithr/api_lock.c
@@ -100,7 +100,7 @@ tet_api_lock(int getlock, const char *file, int line)
 			ownertid = TET_THR_SELF();
 
 			/* now it's safe to store the old signal set */
-			(void) memcpy((void *)&oset, (void *)&tmpset, sizeof oset);
+			memcpy((void *)&oset, (void *)&tmpset, sizeof oset);
 		}
 		nestlevel++;
 
@@ -118,11 +118,11 @@ tet_api_lock(int getlock, const char *file, int line)
 		if (nestlevel == 0)
 		{
 			/* copy signal set to safe storage before unlocking */
-			(void) memcpy((void *)&tmpset, (void *)&oset, sizeof oset);
+			memcpy((void *)&tmpset, (void *)&oset, sizeof oset);
 
 			TET_MUTEX_UNLOCK(&tet_top_mtx);
 
-			(void) TET_THR_SIGSETMASK(SIG_SETMASK, &tmpset, (sigset_t *)0);
+			TET_THR_SIGSETMASK(SIG_SETMASK, &tmpset, (sigset_t *)0);
 		}
 	}
 }
diff --git a/src/tet3/apithr/thr_create.c b/src/tet3/apithr/thr_create.c
index 651296a7..32acec0e 100644
--- a/src/tet3/apithr/thr_create.c
+++ b/src/tet3/apithr/thr_create.c
@@ -440,7 +440,7 @@ int sig;
 	/* wrong thread received SIGABRT signal - try to do what it
 	   would have done */
 
-	(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)NULL);
+	sigaction(SIGABRT, &oldsigact, (struct sigaction *)NULL);
 	if (oldsigact.sa_handler == SIG_DFL)
 	{
 		abort();
@@ -468,7 +468,7 @@ int sig;
 	}
 
 	if (tet_child > 0)
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 
 	TET_THR_EXIT((void *)0);
 }
@@ -489,7 +489,7 @@ int signum;
 
 	MTX_LOCK(&tet_thrtab_mtx);
 
-	(void) TET_COND_INIT(&thrwait_cv);
+	TET_COND_INIT(&thrwait_cv);
 
 	/* Start at the end of the table and work backwards.  This is
 	   so that if a call to tet_pthread_join() is in progress, the
@@ -537,19 +537,19 @@ int signum;
 		 */
 
 		if (!TET_THR_EQUAL(ttp->tid, tid2))
-			(void) TET_THR_JOIN(ttp->tid, (void **) NULL);
+			TET_THR_JOIN(ttp->tid, (void **) NULL);
 		TET_MUTEX_LOCK(&tet_thrwait_mtx);
 		joined = 1;
-		(void) TET_COND_SIGNAL(&thrwait_cv);
+		TET_COND_SIGNAL(&thrwait_cv);
 		TET_MUTEX_UNLOCK(&tet_thrwait_mtx);
-		(void) TET_THR_JOIN(tid2, (void **) NULL);
+		TET_THR_JOIN(tid2, (void **) NULL);
 		tet_listremove((struct llist **) &thrtab, (struct llist *) ttp);
 		TRACE2(tet_Tbuf, 6, "free thrtab entry = %s", tet_i2x(ttp));
 		free((void *)ttp);
 	}
 	thrtab = NULL;
 
-	(void) TET_COND_DESTROY(&thrwait_cv);
+	TET_COND_DESTROY(&thrwait_cv);
 
 	MTX_UNLOCK(&tet_thrtab_mtx);
 }
@@ -591,8 +591,8 @@ void *arg;
 	target_tid = carg->tid;
 	sa.sa_handler = make_thr_exit;
 	sa.sa_flags = 0; 
-	(void) sigemptyset(&sa.sa_mask); 
-	(void) sigaction(SIGABRT, &sa, &oldsigact);
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGABRT, &sa, &oldsigact);
 	err = TET_THR_KILL(carg->tid, SIGABRT);
 	switch (err)
 	{
@@ -600,7 +600,7 @@ void *arg;
 		break;
 	case ESRCH:
 		/* thread has gone away already */
-		(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
+		sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
 		return (void *)0;
 	default:
 		fatal(err, "TET_THR_KILL() failed in cln_thr2()", (char *)0);
@@ -620,7 +620,7 @@ void *arg;
 		err = 0;
 	TET_MUTEX_UNLOCK(&tet_thrwait_mtx);
 	if (err == 0)
-		(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
+		sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
 	else if (1
 #ifdef ETIME
 		 && err != ETIME
diff --git a/src/tet3/apithr/thr_create.c.orig b/src/tet3/apithr/thr_create.c.orig
index 6262b146..c8ab2fc1 100644
--- a/src/tet3/apithr/thr_create.c.orig
+++ b/src/tet3/apithr/thr_create.c.orig
@@ -299,7 +299,7 @@ int sig;
 	/* wrong thread received SIGABRT signal - try to do what it
 	   would have done */
 
-	(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)NULL);
+	sigaction(SIGABRT, &oldsigact, (struct sigaction *)NULL);
 	if (oldsigact.sa_handler == SIG_DFL)
 	{
 		abort();
@@ -327,7 +327,7 @@ int sig;
 	}
 
 	if (tet_child > 0)
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 
 	TET_THR_EXIT((void *)0);
 }
@@ -348,7 +348,7 @@ int signum;
 
 	MTX_LOCK(&tet_thrtab_mtx);
 
-	(void) TET_COND_INIT(&thrwait_cv);
+	TET_COND_INIT(&thrwait_cv);
 
 	for (ttp = thrtab; ttp; ttp = ttpnext)
 	{
@@ -385,19 +385,19 @@ int signum;
 		 */
 
 		if (!TET_THR_EQUAL(ttp->tid, tid2))
-			(void) TET_THR_JOIN(ttp->tid, (void **) NULL);
+			TET_THR_JOIN(ttp->tid, (void **) NULL);
 		TET_MUTEX_LOCK(&tet_thrwait_mtx);
 		joined = 1;
-		(void) TET_COND_SIGNAL(&thrwait_cv);
+		TET_COND_SIGNAL(&thrwait_cv);
 		TET_MUTEX_UNLOCK(&tet_thrwait_mtx);
-		(void) TET_THR_JOIN(tid2, (void **) NULL);
+		TET_THR_JOIN(tid2, (void **) NULL);
 		tet_listremove((struct llist **) &thrtab, (struct llist *) ttp);
 		TRACE2(tet_Tbuf, 6, "free thrtab entry = %s", tet_i2x(ttp));
 		free((void *)ttp);
 	}
 	thrtab = NULL;
 
-	(void) TET_COND_DESTROY(&thrwait_cv);
+	TET_COND_DESTROY(&thrwait_cv);
 
 	MTX_UNLOCK(&tet_thrtab_mtx);
 }
@@ -439,8 +439,8 @@ void *arg;
 	target_tid = carg->tid;
 	sa.sa_handler = make_thr_exit;
 	sa.sa_flags = 0; 
-	(void) sigemptyset(&sa.sa_mask); 
-	(void) sigaction(SIGABRT, &sa, &oldsigact);
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGABRT, &sa, &oldsigact);
 	err = TET_THR_KILL(carg->tid, SIGABRT);
 	switch (err)
 	{
@@ -448,7 +448,7 @@ void *arg;
 		break;
 	case ESRCH:
 		/* thread has gone away already */
-		(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
+		sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
 		return (void *)0;
 	default:
 		fatal(err, "TET_THR_KILL() failed in cln_thr2()", (char *)0);
@@ -468,7 +468,7 @@ void *arg;
 		err = 0;
 	TET_MUTEX_UNLOCK(&tet_thrwait_mtx);
 	if (err == 0)
-		(void) sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
+		sigaction(SIGABRT, &oldsigact, (struct sigaction *)0);
 	else if (err != ETIME)
 		fatal(err, "TET_COND_TIMEDWAIT() failed in cln_thr2()",
 			(char *) 0);
diff --git a/src/tet3/demo/master/ts/tc3.c b/src/tet3/demo/master/ts/tc3.c
index 3a93eea8..7d178b6d 100644
--- a/src/tet3/demo/master/ts/tc3.c
+++ b/src/tet3/demo/master/ts/tc3.c
@@ -55,12 +55,12 @@ char *rptstr;	/* failure to report */
 	else if (err > 0 && err < tet_nerr)
 		errstr = tet_errlist[err];
 	else {
-		(void) sprintf(errbuf, "unknown tet_errno value %d", tet_errno);
+		sprintf(errbuf, "unknown tet_errno value %d", tet_errno);
 		errstr = errbuf;
 	}
 
 	if (tet_printf("%s%s%s", rptstr, colonstr, errstr) < 0) {
-		(void) fprintf(stderr, "tet_printf() failed: tet_errno %d\n",
+		fprintf(stderr, "tet_printf() failed: tet_errno %d\n",
 			tet_errno);
 		exit(EXIT_FAILURE);
 	}
@@ -70,7 +70,7 @@ static void tp1()
 {
 	tet_infoline("This is tp1 in the third test case (tc3, master)");
 
-	(void) tet_printf("sync with slave (sysid: %d)", *sys1);
+	tet_printf("sync with slave (sysid: %d)", *sys1);
 
 	if (tet_remsync(101L, sys1, 1, TIMEOUT, TET_SV_YES,
 				(struct tet_synmsg *)0) != 0) {
@@ -89,7 +89,7 @@ static void tp2()
 
 	tet_infoline("This is tp2 in the third test case (tc3, master)");
 
-	(void) tet_printf("send message \"%s\" to slave (sysid: %d)",
+	tet_printf("send message \"%s\" to slave (sysid: %d)",
 			  tdata, *sys1);
 
 	msg.tsm_flags = TET_SMSNDMSG;
diff --git a/src/tet3/demo/slave/ts/tc3.c b/src/tet3/demo/slave/ts/tc3.c
index a7966290..84b98237 100644
--- a/src/tet3/demo/slave/ts/tc3.c
+++ b/src/tet3/demo/slave/ts/tc3.c
@@ -55,12 +55,12 @@ char *rptstr;	/* failure to report */
 	else if (err > 0 && err < tet_nerr)
 		errstr = tet_errlist[err];
 	else {
-		(void) sprintf(errbuf, "unknown tet_errno value %d", tet_errno);
+		sprintf(errbuf, "unknown tet_errno value %d", tet_errno);
 		errstr = errbuf;
 	}
 
 	if (tet_printf("%s%s%s", rptstr, colonstr, errstr) < 0) {
-		(void) fprintf(stderr, "tet_printf() failed: tet_errno %d\n",
+		fprintf(stderr, "tet_printf() failed: tet_errno %d\n",
 			tet_errno);
 		exit(EXIT_FAILURE);
 	}
@@ -70,7 +70,7 @@ static void tp1()
 {
 	tet_infoline("This is tp1 in the third test case (tc3, slave)");
 
-	(void) tet_printf("sync with master (sysid: %d)", *sys0);
+	tet_printf("sync with master (sysid: %d)", *sys0);
 
 	if (tet_remsync(101L, sys0, 1, TIMEOUT, TET_SV_YES,
 				(struct tet_synmsg *)0) != 0) {
@@ -89,7 +89,7 @@ static void tp2()
 
 	tet_infoline("This is tp2 in the third test case (tc3, slave)");
 
-	(void) tet_printf("sync with master (sysid: %d) and receive data",
+	tet_printf("sync with master (sysid: %d) and receive data",
 			  *sys0);
 
 	msg.tsm_flags = TET_SMRCVMSG;
@@ -106,7 +106,7 @@ static void tp2()
 		error(0, "tet_remsync() set tsm_dlen <= 0 on slave");
 	else
 	{
-		(void) tet_printf("received message \"%.*s\" from master",
+		tet_printf("received message \"%.*s\" from master",
 			msg.tsm_dlen, rcvbuf);
 		rescode = TET_PASS;
 	}
diff --git a/src/tet3/dtet2lib/alarm.c b/src/tet3/dtet2lib/alarm.c
index 0e182e4c..406298c1 100644
--- a/src/tet3/dtet2lib/alarm.c
+++ b/src/tet3/dtet2lib/alarm.c
@@ -134,11 +134,11 @@ struct alrmaction *new_aa, *old_aa;
 
 	/* SIGALRM is blocked between tet_sigsafe_start/end calls,
 	   so unblock it.  (This means the handler mustn't longjmp.) */
-	(void) sigemptyset(&alrmset);
-	(void) sigaddset(&alrmset, SIGALRM);
-	(void) sigprocmask(SIG_UNBLOCK, &alrmset, &old_aa->mask);
+	sigemptyset(&alrmset);
+	sigaddset(&alrmset, SIGALRM);
+	sigprocmask(SIG_UNBLOCK, &alrmset, &old_aa->mask);
 
-	(void) alarm(new_aa->waittime);
+	alarm(new_aa->waittime);
 
 #else /* TET_THREADS */
 
@@ -166,7 +166,7 @@ struct alrmaction *new_aa, *old_aa;
 	TRACE2(tet_Tbuf, 6, "allocate condition variable = %s",
 		tet_i2x(alrmarg->cvp));
 
-	(void) TET_COND_INIT(alrmarg->cvp);
+	TET_COND_INIT(alrmarg->cvp);
 
 	/* call alrm_thr() in a new thread */
 	alrmarg->waittime = new_aa->waittime;
@@ -176,7 +176,7 @@ struct alrmaction *new_aa, *old_aa;
 	err = TET_THR_CREATE(alrm_thr, (void *) alrmarg, &old_aa->join_tid);
 	if (err != 0)
 	{
-		(void) TET_COND_DESTROY(alrmarg->cvp);
+		TET_COND_DESTROY(alrmarg->cvp);
 		TRACE2(tet_Tbuf, 6, "free condition variable = %s",
 			tet_i2x(alrmarg->cvp));
 		free((void *)alrmarg->cvp);
@@ -193,9 +193,9 @@ struct alrmaction *new_aa, *old_aa;
 	 * action and send a SIGALRM to this thread.
 	 */
 
-	(void) sigemptyset(&alrmset);
-	(void) sigaddset(&alrmset, SIGALRM);
-	(void) TET_THR_SIGSETMASK(SIG_UNBLOCK, &alrmset, &old_aa->mask);
+	sigemptyset(&alrmset);
+	sigaddset(&alrmset, SIGALRM);
+	TET_THR_SIGSETMASK(SIG_UNBLOCK, &alrmset, &old_aa->mask);
 	old_aa->cvp = alrmarg->cvp;
 
 	/* note alrmarg is freed in alrm_thr() */
@@ -253,7 +253,7 @@ void *varg;
 	MTX_UNLOCK(&tet_alarm_mtx);
 	if (err == 0)
 	{
-		(void) TET_COND_DESTROY(cvp);
+		TET_COND_DESTROY(cvp);
 		TRACE2(tet_Tbuf, 6, "free condition variable = %s",
 			tet_i2x(cvp));
 		free((void *)cvp);
@@ -293,11 +293,11 @@ void *varg;
 			"second TET_COND_TIMEDWAIT() timed out in alrm_thr()",
 			(char *)0);
 
-	(void) sigaction(SIGALRM, &oldsigact, (struct sigaction *)0);
+	sigaction(SIGALRM, &oldsigact, (struct sigaction *)0);
 
 	MTX_UNLOCK(&tet_sigalrm_mtx);
 
-	(void) TET_COND_DESTROY(cvp);
+	TET_COND_DESTROY(cvp);
 	TRACE2(tet_Tbuf, 6, "free condition variable = %s", tet_i2x(cvp));
 	free((void *)cvp);
 
@@ -312,8 +312,8 @@ struct alrmaction *old_aa;
 {
 #ifndef TET_THREADS
 
-	(void) alarm(0);
-	(void) sigprocmask(SIG_SETMASK, &old_aa->mask, (sigset_t *)0);
+	alarm(0);
+	sigprocmask(SIG_SETMASK, &old_aa->mask, (sigset_t *)0);
 	if (sigaction(SIGALRM, &old_aa->sa, (struct sigaction *)0) == -1)
 		return -1;
 
@@ -326,10 +326,10 @@ struct alrmaction *old_aa;
 		return -1;
 	}
 
-	(void) TET_THR_SIGSETMASK(SIG_SETMASK, &old_aa->mask, (sigset_t *) 0);
+	TET_THR_SIGSETMASK(SIG_SETMASK, &old_aa->mask, (sigset_t *) 0);
 	MTX_LOCK(&tet_alarm_mtx);
 	old_aa->waittime = 0;	/* used as condition var */
-	(void) TET_COND_SIGNAL(old_aa->cvp);
+	TET_COND_SIGNAL(old_aa->cvp);
 	MTX_UNLOCK(&tet_alarm_mtx);
 	old_aa->cvp = NULL;	/* so a second call will give EINVAL */
 
diff --git a/src/tet3/dtet2lib/avmsg.c b/src/tet3/dtet2lib/avmsg.c
index bc0c06e7..11ffab98 100644
--- a/src/tet3/dtet2lib/avmsg.c
+++ b/src/tet3/dtet2lib/avmsg.c
@@ -108,7 +108,7 @@ register char *to;
 	for (n = 0; n < (int) from->av_argc; n++)
 		if (from->av_argv[n]) {
 			offset = sp - to;
-			(void) tet_st2bs((char *) &offset,
+			tet_st2bs((char *) &offset,
 				to + AV_AVMSGSZ(n), &offst[0], 1);
 			for (p = from->av_argv[n]; *p; p++)
 				*sp++ = *p;
diff --git a/src/tet3/dtet2lib/errname.c b/src/tet3/dtet2lib/errname.c
index 52150382..2955688a 100644
--- a/src/tet3/dtet2lib/errname.c
+++ b/src/tet3/dtet2lib/errname.c
@@ -63,6 +63,6 @@ register int errnum;
 		if (errnum == ep->em_errno)
 			return(ep->em_errname);
 
-	(void) sprintf(text, fmt, errnum);
+	sprintf(text, fmt, errnum);
 	return(text);
 }
diff --git a/src/tet3/dtet2lib/fcopy.c b/src/tet3/dtet2lib/fcopy.c
index d3bd5ba0..cc5a9da1 100644
--- a/src/tet3/dtet2lib/fcopy.c
+++ b/src/tet3/dtet2lib/fcopy.c
@@ -137,7 +137,7 @@ char *dest;
 	if (dest_exists) {
 		dest_is_directory = S_ISDIR(st_dest.st_mode);
 		if (S_ISDIR(st_src.st_mode) && !dest_is_directory) {
-			(void) sprintf(msg, fmt1, MAXPATH, src);
+			sprintf(msg, fmt1, MAXPATH, src);
 			error(ENOTDIR, msg, dest);
 			errno = ENOTDIR;
 			return(-1);
@@ -165,7 +165,7 @@ char *dest;
 		}
 		else {
 			len = (int) sizeof destfile - (int) strlen(dest) - 2;
-			(void) sprintf(destfile, "%.*s/%.*s",
+			sprintf(destfile, "%.*s/%.*s",
 				(int) (sizeof destfile - 2), dest,
 				TET_MAX(len, 0), tet_basename(src));
 			dest = destfile;
@@ -177,7 +177,7 @@ char *dest;
 	** ignore files other than regular files
 	*/
 	if (!S_ISREG(st_src.st_mode)) {
-		(void) sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
+		sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
 		error(0, msg, "(source is not a plain file)");
 		return(0);
 	}
@@ -210,12 +210,12 @@ char *dest;
 
 	if (dest_exists && !dest_is_directory) {
 		if (SRC_IS_DEST) {
-			(void) sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
+			sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
 			error(0, msg, "(source and destination are identical)");
 			return(-1);
 		}
 		if (!S_ISREG(st_dest.st_mode)) {
-			(void) sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
+			sprintf(msg, fmt2, MAXPATH, src, MAXPATH, dest);
 			error(0, msg,
 				"(destination exists and is not a plain file)");
 			return(-1);
@@ -240,14 +240,14 @@ char *dest;
 	if ((ofp = fopen(dest, "wb")) == (FILE *) 0) {
 		save_errno = errno;
 		error(errno, "can't open", dest);
-		(void) fclose(ifp);
+		fclose(ifp);
 		errno = save_errno;
 		return(-1);
 	}
 
 	rc = 0;
 	while ((nread = fread(buf, sizeof buf[0], sizeof buf, ifp)) > 0) {
-		(void) fwrite(buf, sizeof buf[0], (size_t) nread, ofp);
+		fwrite(buf, sizeof buf[0], (size_t) nread, ofp);
 		if (ferror(ofp)) {
 			save_errno = errno;
 			error(errno, "write error on", dest);
@@ -264,7 +264,7 @@ char *dest;
 		rc = -1;
 	}
 
-	(void) fclose(ifp);
+	fclose(ifp);
 	if (fclose(ofp) < 0) {
 		save_errno = errno;
 		error(errno, "close error on", dest);
@@ -315,7 +315,7 @@ char *to;
 		&&
 		(len1 == len2 || isdirsep(*(to + len1)))
 	) {
-		(void) sprintf(msg, fmt, MAXPATH, from, MAXPATH, to);
+		sprintf(msg, fmt, MAXPATH, from, MAXPATH, to);
 		error(0, msg, "would never return!");
 		return(-1);
 	}
@@ -337,10 +337,10 @@ char *to;
 	while ((dp = READDIR(dirp)) != (struct dirent *) 0) {
                 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
                         continue;
-		(void) sprintf(fromname, "%.*s/%.*s",
+		sprintf(fromname, "%.*s/%.*s",
 			(int) (sizeof fromname - 2), from,
 			TET_MAX(len1, 0), dp->d_name);
-		(void) sprintf(toname, "%.*s/%.*s",
+		sprintf(toname, "%.*s/%.*s",
 			(int) (sizeof toname - 2), to,
 			TET_MAX(len2, 0), dp->d_name);
 		if ((tet_fcopy(fromname, toname) != 0) && (errno != ENOENT))
@@ -348,7 +348,7 @@ char *to;
         }
 
 	save_errno = errno;
-	(void) CLOSEDIR(dirp);
+	CLOSEDIR(dirp);
 	errno = save_errno;
 	return (errcount > 0 ? -1 : 0);
 }
diff --git a/src/tet3/dtet2lib/fork.c b/src/tet3/dtet2lib/fork.c
index dcb10ec8..ab32e0e6 100644
--- a/src/tet3/dtet2lib/fork.c
+++ b/src/tet3/dtet2lib/fork.c
@@ -63,7 +63,7 @@ int tet_dofork()
 	register int rc, try;
 
 	for (try = 0; (rc = fork()) < 0 && try < 5; try++)
-		(void) sleep((unsigned) TET_MAX(1 << try, 2));
+		sleep((unsigned) TET_MAX(1 << try, 2));
 
 	if (rc == 0)
 		tet_mypid = (int) getpid();
diff --git a/src/tet3/dtet2lib/globals.c b/src/tet3/dtet2lib/globals.c
index a65f4cc6..e2842c9c 100644
--- a/src/tet3/dtet2lib/globals.c
+++ b/src/tet3/dtet2lib/globals.c
@@ -103,7 +103,7 @@ TET_IMPORT void tet_init_globals(const char *progname, int ptype, int sysid,
 		tet_mysysid = sysid;
 
 	if ((p = getenv("TET_ROOT")) != (char *) 0)
-		(void) sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, p);
+		sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, p);
 
 	if (!tet_libfatal)
 		tet_libfatal = minfatal;
@@ -124,7 +124,7 @@ static TET_NORETURN void minfatal(int err, const char *file, int line, const cha
 	if (tet_liberror)
 		(*tet_liberror)(err, file, line, s1, s2);
 	else
-		(void) fprintf(stderr, "%s (%s, %d): %s %s\n",
+		fprintf(stderr, "%s (%s, %d): %s %s\n",
 			tet_progname, file, line, s1, s2 ? s2 : "");
 	exit(1);
 }
diff --git a/src/tet3/dtet2lib/hexdump.c b/src/tet3/dtet2lib/hexdump.c
index db76c3c4..42558789 100644
--- a/src/tet3/dtet2lib/hexdump.c
+++ b/src/tet3/dtet2lib/hexdump.c
@@ -58,21 +58,21 @@ FILE *fp;
 
 	start = dp;
 	do {
-		(void) fprintf(fp, "%#lx:", (long) start);
+		fprintf(fp, "%#lx:", (long) start);
 		if (start >= end)
 			continue;
 		p2 = TET_MIN(start + 16, end);
 		for (p1 = start; p1 < p2; p1++)
-			(void) fprintf(fp, " %02x", (unsigned char) *p1);
+			fprintf(fp, " %02x", (unsigned char) *p1);
 		while (p1++ <= start + 16)
-			(void) fprintf(fp, "   ");
+			fprintf(fp, "   ");
 		for (p1 = start; p1 < p2; p1++)
-			(void) fprintf(fp, "%c",
+			fprintf(fp, "%c",
 				*p1 > '\040' && *p1 < '\177' ? *p1 : '.');
-		(void) fprintf(fp, "\n");
+		fprintf(fp, "\n");
 	} while ((start += 16) < end);
 
-	(void) fprintf(fp, "\n");
-	(void) fflush(fp);
+	fprintf(fp, "\n");
+	fflush(fp);
 }
 
diff --git a/src/tet3/dtet2lib/madir.c b/src/tet3/dtet2lib/madir.c
index 1a5c71e0..ae1d584f 100644
--- a/src/tet3/dtet2lib/madir.c
+++ b/src/tet3/dtet2lib/madir.c
@@ -68,7 +68,7 @@ char *path;
 
 	if (STAT(path, &stbuf) < 0) {
 		if (errno == ENOENT) {
-			(void) sprintf(buf, "%.*s", (int)sizeof buf - 1, path);
+			sprintf(buf, "%.*s", (int)sizeof buf - 1, path);
 			rc = mkad2(buf);
 		}
 		else {
diff --git a/src/tet3/dtet2lib/mkdir.c b/src/tet3/dtet2lib/mkdir.c
index 131b4b80..2337c4a1 100644
--- a/src/tet3/dtet2lib/mkdir.c
+++ b/src/tet3/dtet2lib/mkdir.c
@@ -101,7 +101,7 @@ int mode;
 			break;
 	if (p > path) {
 		n = p - path;
-		(void) sprintf(dir, "%.*s",
+		sprintf(dir, "%.*s",
 			TET_MIN(n, (int) sizeof dir - 1), path);
 		if (stat(dir, &stbuf) < 0)
 			return(-1);
@@ -162,7 +162,7 @@ char *path;
 			break;
 	if (p > path) {
 		n = p - path;
-		(void) sprintf(dir, "%.*s",
+		sprintf(dir, "%.*s",
 			TET_MIN(n, (int) sizeof dir - 1), path);
 		if (tet_eaccess(dir, 02) < 0)
 			return(-1);
@@ -223,15 +223,15 @@ int mode;
 		argv[0] = prog;
 		argv[1] = path;
 		argv[2] = (char *) 0;
-		(void) umask(~(mode & ~umask(0)) & 077);
-		(void) execvp(prog, argv);
-		(void) sprintf(msg, "can't exec: %s", prog);
+		umask(~(mode & ~umask(0)) & 077);
+		execvp(prog, argv);
+		sprintf(msg, "can't exec: %s", prog);
 		error(errno, msg, path);
 		_exit(~0);
 		/* NOTREACHED */
 	case -1:
 		save_errno = errno;
-		(void) sprintf(msg, "can't fork: %s", prog);
+		sprintf(msg, "can't fork: %s", prog);
 		error(errno, msg, path);
 		errno = save_errno;
 		return(-2);
@@ -242,14 +242,14 @@ int mode;
 				break;
 		if (rc < 0) {
 			save_errno = errno;
-			(void) sprintf(msg, "wait failed: %s", prog);
+			sprintf(msg, "wait failed: %s", prog);
 			error(errno, prog, msg);
 			errno = save_errno;
 			return(-2);
 		}
 		if (status & 0xffff) {
 			if ((status & 0xff00) != 0xff00) {
-				(void) sprintf(msg, "%s failed:", prog);
+				sprintf(msg, "%s failed:", prog);
 				error(0, msg, path);
 			}
 			return(-1);
diff --git a/src/tet3/dtet2lib/notty.c b/src/tet3/dtet2lib/notty.c
index 24ffff0f..840c8fb4 100644
--- a/src/tet3/dtet2lib/notty.c
+++ b/src/tet3/dtet2lib/notty.c
@@ -72,7 +72,7 @@ void tet_tiocnotty()
 #  ifdef HAS_SETSID
 
 	/* easy - use setsid() to start a new session */
-	(void) setsid();
+	setsid();
 
 #  else /* HAS_SETSID */
 
@@ -83,10 +83,10 @@ void tet_tiocnotty()
 #    endif
 
 #    if defined(SVR2) || defined(SVR3) || defined(SVR4) || defined(__hpux) || defined(_AIX)
-	(void) setpgrp();
+	setpgrp();
 #    else
 	int pid = getpid();
-	(void) setpgrp(pid, pid);
+	setpgrp(pid, pid);
 #    endif
 
 
@@ -96,8 +96,8 @@ void tet_tiocnotty()
 	** control terminal
 	*/
 	if ((ttyfd = open("/dev/tty", O_RDONLY | O_NDELAY)) >= 0) {
-		(void) ioctl(ttyfd, TIOCNOTTY, 0);
-		(void) close(ttyfd);
+		ioctl(ttyfd, TIOCNOTTY, 0);
+		close(ttyfd);
 	}
 #    endif /* TIOCNOTTY */
 
diff --git a/src/tet3/dtet2lib/prerror.c b/src/tet3/dtet2lib/prerror.c
index b02f7074..91dd0c52 100644
--- a/src/tet3/dtet2lib/prerror.c
+++ b/src/tet3/dtet2lib/prerror.c
@@ -65,20 +65,20 @@ void tet_prerror(FILE *fp, int errnum, const char *hdr, const char *file,
 {
 	const char *s3, *s4;
 
-	(void) fprintf(fp, "%s (%s, %d): %s",
+	fprintf(fp, "%s (%s, %d): %s",
 		hdr, tet_basename(file), line, s1);
 	if (s2 && *s2)
-		(void) fprintf(fp, " %s", s2);
+		fprintf(fp, " %s", s2);
 	if (errnum > 0) {
 		s3 = ":";
 			if ((s4 = strerror(errnum)) == (char *) 0) {
 				s3 = ", errno =";
 				s4 = tet_errname(errnum);
 			}
-		(void) fprintf(fp, "%s %s", s3, s4);
+		fprintf(fp, "%s %s", s3, s4);
 	}
-	(void) putc('\n', fp);
-	(void) fflush(fp);
+	putc('\n', fp);
+	fflush(fp);
 
 	errno = 0;
 }
diff --git a/src/tet3/dtet2lib/ptstate.c b/src/tet3/dtet2lib/ptstate.c
index a6c1e422..ccf3115c 100644
--- a/src/tet3/dtet2lib/ptstate.c
+++ b/src/tet3/dtet2lib/ptstate.c
@@ -77,7 +77,7 @@ int state;
 	case PS_CONNECT:
 		return("CONNECT");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/ptype.c b/src/tet3/dtet2lib/ptype.c
index 4547945d..8c6b67f6 100644
--- a/src/tet3/dtet2lib/ptype.c
+++ b/src/tet3/dtet2lib/ptype.c
@@ -74,7 +74,7 @@ int ptype;
 	case PT_STAND:
 		return("STANDALONE");
 	default:
-		(void) sprintf(msg, "%s%d", text, ptype);
+		sprintf(msg, "%s%d", text, ptype);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/repcode.c b/src/tet3/dtet2lib/repcode.c
index 5d4bc381..560516d0 100644
--- a/src/tet3/dtet2lib/repcode.c
+++ b/src/tet3/dtet2lib/repcode.c
@@ -179,7 +179,7 @@ int rc;
 	case ER_ENOTEMPTY:
 		return("ER_ENOTEMPTY");
 	default:
-		(void) sprintf(msg, "%s%d", text, rc);
+		sprintf(msg, "%s%d", text, rc);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/reqcode.c b/src/tet3/dtet2lib/reqcode.c
index 7c407c64..430df745 100644
--- a/src/tet3/dtet2lib/reqcode.c
+++ b/src/tet3/dtet2lib/reqcode.c
@@ -185,7 +185,7 @@ int request;
 		return("PRINT");
 #endif
 	default:
-		(void) sprintf(msg, "%s%d", text, request);
+		sprintf(msg, "%s%d", text, request);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/rescode.c b/src/tet3/dtet2lib/rescode.c
index fe7905f1..a68c1544 100644
--- a/src/tet3/dtet2lib/rescode.c
+++ b/src/tet3/dtet2lib/rescode.c
@@ -257,7 +257,7 @@ char *fname;
 			break;
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 	return(rc);
 }
 
@@ -329,7 +329,7 @@ int line;
 {
 	char buf[128];
 
-	(void) sprintf(buf, "%s in line %d, file", msg, line);
+	sprintf(buf, "%s in line %d, file", msg, line);
 	error(0, buf, file);
 }
 
diff --git a/src/tet3/dtet2lib/rtoa.c b/src/tet3/dtet2lib/rtoa.c
index b674797f..f0ad1dff 100644
--- a/src/tet3/dtet2lib/rtoa.c
+++ b/src/tet3/dtet2lib/rtoa.c
@@ -71,7 +71,7 @@ struct remid *rp;
 		count = 0;
 	p = buf[count];
 
-	(void) sprintf(p, fmt, rp->re_sysid, rp->re_pid,
+	sprintf(p, fmt, rp->re_sysid, rp->re_pid,
 		tet_ptptype(rp->re_ptype));
 	return(p);
 }
diff --git a/src/tet3/dtet2lib/sigsafe.c b/src/tet3/dtet2lib/sigsafe.c
index 798ae5a3..adca65ce 100644
--- a/src/tet3/dtet2lib/sigsafe.c
+++ b/src/tet3/dtet2lib/sigsafe.c
@@ -72,23 +72,23 @@ TET_IMPORT void tet_init_blockable_sigs()
 	/* start with full set, and then remove signals that
 	   should not be blocked */
 
-	(void) sigfillset(&tet_blockable_sigs);
+	sigfillset(&tet_blockable_sigs);
 
 	/* the system won't allow these to be blocked */
-	(void) sigdelset(&tet_blockable_sigs, SIGKILL);
-	(void) sigdelset(&tet_blockable_sigs, SIGSTOP);
+	sigdelset(&tet_blockable_sigs, SIGKILL);
+	sigdelset(&tet_blockable_sigs, SIGSTOP);
 
 	/* blocking this could give problems, and it is unlikely
 	   anyone would longjmp out of a SIGCHLD handler (no TET
 	   code does), so it should be safe to leave it unblocked */
-	(void) sigdelset(&tet_blockable_sigs, SIGCHLD);
+	sigdelset(&tet_blockable_sigs, SIGCHLD);
 
 	/* hardware signals that give undefined behaviour if blocked */
-	(void) sigdelset(&tet_blockable_sigs, SIGSEGV);
-	(void) sigdelset(&tet_blockable_sigs, SIGILL);
-	(void) sigdelset(&tet_blockable_sigs, SIGFPE);
+	sigdelset(&tet_blockable_sigs, SIGSEGV);
+	sigdelset(&tet_blockable_sigs, SIGILL);
+	sigdelset(&tet_blockable_sigs, SIGFPE);
 #  ifdef SIGBUS
-	(void) sigdelset(&tet_blockable_sigs, SIGBUS);
+	sigdelset(&tet_blockable_sigs, SIGBUS);
 #  endif
 
 
diff --git a/src/tet3/dtet2lib/strstore.c b/src/tet3/dtet2lib/strstore.c
index 6ef61d74..d0596796 100644
--- a/src/tet3/dtet2lib/strstore.c
+++ b/src/tet3/dtet2lib/strstore.c
@@ -72,7 +72,7 @@ char *s;
 	if ((p = malloc(len)) == (char *) 0)
 		error(errno, "can't get memory for string:", s);
 	else
-		(void) strcpy(p, s);
+		strcpy(p, s);
 
 	TRACE4(tet_Tbuf, 6, "tet_strstore(\"%.24s%s\") returns %s",
 		s, len > 25 ? " ..." : "", tet_i2x(p));
diff --git a/src/tet3/dtet2lib/svote.c b/src/tet3/dtet2lib/svote.c
index 9df510a7..1517326e 100644
--- a/src/tet3/dtet2lib/svote.c
+++ b/src/tet3/dtet2lib/svote.c
@@ -63,7 +63,7 @@ int vote;
 	case SV_NO:
 		return("NO");
 	default:
-		(void) sprintf(msg, "%s%d", text, vote);
+		sprintf(msg, "%s%d", text, vote);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/sysent.c b/src/tet3/dtet2lib/sysent.c
index 48c31c74..14d8c268 100644
--- a/src/tet3/dtet2lib/sysent.c
+++ b/src/tet3/dtet2lib/sysent.c
@@ -114,7 +114,7 @@ int tet_libsetsysent()
 	}
 
 	ASSERT(tet_root[0]);
-	(void) sprintf(path, "%.*s/%s",
+	sprintf(path, "%.*s/%s",
 		(int) sizeof path - (int) sizeof file - 1, tet_root, file);
 
 	if ((sfp = fopen(path, "r")) == NULL) {
@@ -122,7 +122,7 @@ int tet_libsetsysent()
 		return(-1);
 	}
 
-	(void) tet_fioclex(FILENO(sfp));
+	tet_fioclex(FILENO(sfp));
 	return(0);
 }
 
@@ -133,7 +133,7 @@ int tet_libsetsysent()
 void tet_libendsysent()
 {
 	if (sfp != NULL) {
-		(void) fclose(sfp);
+		fclose(sfp);
 		sfp = NULL;
 	}
 }
diff --git a/src/tet3/dtet2lib/systate.c b/src/tet3/dtet2lib/systate.c
index 85c70370..7ab35e9d 100644
--- a/src/tet3/dtet2lib/systate.c
+++ b/src/tet3/dtet2lib/systate.c
@@ -72,7 +72,7 @@ int state;
 	case SS_DEAD:
 		return("DEAD");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
diff --git a/src/tet3/dtet2lib/targs.c b/src/tet3/dtet2lib/targs.c
index 0723cd48..6e162221 100644
--- a/src/tet3/dtet2lib/targs.c
+++ b/src/tet3/dtet2lib/targs.c
@@ -158,7 +158,7 @@ char **argv;
 					*p++ = sp->st_name;
 			*p++ = ',';
 		}
-		(void) sprintf(p, "%c%d", tp->tf_name, tp->tf_value);
+		sprintf(p, "%c%d", tp->tf_name, tp->tf_value);
 		TRACE2(tet_Ttrace, 4, "trace arg = \"%s\"", *(ap - 1));
 		p += strlen(p) + 1;
 	}
diff --git a/src/tet3/dtet2lib/tdump.c b/src/tet3/dtet2lib/tdump.c
index 2af16ed0..f2bf7017 100644
--- a/src/tet3/dtet2lib/tdump.c
+++ b/src/tet3/dtet2lib/tdump.c
@@ -59,7 +59,7 @@ int len;
 	if (!tet_tfp)
 		tet_tfopen();
 
-	(void) fprintf(tet_tfp, "%s:\n",
+	fprintf(tet_tfp, "%s:\n",
 		title && *title ? title : "data dump:");
 
 	tet_hexdump(from, len, tet_tfp);
diff --git a/src/tet3/dtet2lib/tfname.c b/src/tet3/dtet2lib/tfname.c
index 43bce3e7..0a617f55 100644
--- a/src/tet3/dtet2lib/tfname.c
+++ b/src/tet3/dtet2lib/tfname.c
@@ -158,7 +158,7 @@ char **np;
 	TRACE2(tet_Tbuf, 6, "allocate tfname = %s", tet_i2x(fname));
 
 	/* generate the file name */
-	(void) sprintf(fname, "%s/%s%s%s", dir, prefix, &salt[1], pidstr);
+	sprintf(fname, "%s/%s%s%s", dir, prefix, &salt[1], pidstr);
 
 	/* try to open the file */
 	if ((fd = OPEN(fname, O_RDWR|O_CREAT|O_EXCL|O_BINARY, MODEANY)) < 0)
@@ -187,7 +187,7 @@ char **np;
 				break;
 			}
 		/* close the file and unlink it */
-		(void) CLOSE(fd);
+		CLOSE(fd);
 		if (UNLINK(fname) < 0)
 			error(errno, "can't unlink", fname);
 	}
diff --git a/src/tet3/dtet2lib/trace.c b/src/tet3/dtet2lib/trace.c
index d315daa2..c05106a8 100644
--- a/src/tet3/dtet2lib/trace.c
+++ b/src/tet3/dtet2lib/trace.c
@@ -341,25 +341,25 @@ TET_IMPORT void tet_trace(const char *s1, const char *s2, const char *s3,
 		tet_tfopen();
 
 #ifndef TET_THREADS
-	(void) fprintf(tet_tfp, "%s (%ld)", tet_progname, (long) GETPID());
+	fprintf(tet_tfp, "%s (%ld)", tet_progname, (long) GETPID());
 #else
-	(void) fprintf(tet_tfp, "%s (%ld.%ld)", tet_progname, (long) GETPID(),
+	fprintf(tet_tfp, "%s (%ld.%ld)", tet_progname, (long) GETPID(),
 		(long) TET_THR_SELF());
 #endif
 	if (tet_Ttrace > 0) {
 		now = time((time_t *) 0);
 		tp = localtime(&now);
 		if (tet_Ttrace > 1)
-			(void) fprintf(tet_tfp, " %d:%02d:%02d",
+			fprintf(tet_tfp, " %d:%02d:%02d",
 				tp->tm_hour, tp->tm_min, tp->tm_sec);
 		else
-			(void) fprintf(tet_tfp, " %d:%02d",
+			fprintf(tet_tfp, " %d:%02d",
 				tp->tm_min, tp->tm_sec);
 	}
-	(void) fprintf(tet_tfp, ": ");
-	(void) fprintf(tet_tfp, s1, s2, s3, s4, s5, s6);
-	(void) putc('\n', tet_tfp);
-	(void) fflush(tet_tfp);
+	fprintf(tet_tfp, ": ");
+	fprintf(tet_tfp, s1, s2, s3, s4, s5, s6);
+	putc('\n', tet_tfp);
+	fflush(tet_tfp);
 
 	errno = save_errno;
 }
diff --git a/src/tet3/inc/dtthr.h b/src/tet3/inc/dtthr.h
index 4ca1fee0..d414a787 100644
--- a/src/tet3/inc/dtthr.h
+++ b/src/tet3/inc/dtthr.h
@@ -209,7 +209,7 @@ MODIFICATIONS:
 #    define TET_THR_EQUAL(a, b)		((a) == (b))
 #    define TET_THR_EXIT(sp)		thr_exit((sp))
 #    define TET_THR_GETSPECIFIC(key, vp) \
-	(*(vp) = (void *) 0, (void) thr_getspecific((key), (vp)))
+	(*(vp) = (void *) 0, thr_getspecific((key), (vp)))
 #    define TET_THR_JOIN(tid, sp)	thr_join((tid), (thread_t *) 0, (sp))
 #    define TET_THR_KEYCREATE(kp)	thr_keycreate((kp), TET_NULLFP)
 #    define TET_THR_KILL(tid, sig)	thr_kill((tid), (sig))
@@ -237,7 +237,7 @@ MODIFICATIONS:
 	TET_THR_SIGSETMASK(SIG_BLOCK, &tet_blockable_sigs, &MTX_LOCK_oss); \
 	TET_MUTEX_LOCK(mp);
 #    define MTX_UNLOCK(mp) TET_MUTEX_UNLOCK(mp); if (MTX_LOCK_maskret == 0) \
-	(void) TET_THR_SIGSETMASK(SIG_SETMASK, &MTX_LOCK_oss, (sigset_t *)0); }
+	TET_THR_SIGSETMASK(SIG_SETMASK, &MTX_LOCK_oss, (sigset_t *)0); }
 
 
    /* top-level API mutex with calls that can be nested */
diff --git a/src/tet3/inc/sigsafe.h b/src/tet3/inc/sigsafe.h
index f8f9ee51..d4144dff 100644
--- a/src/tet3/inc/sigsafe.h
+++ b/src/tet3/inc/sigsafe.h
@@ -42,8 +42,8 @@ MODIFICATIONS:
 ** and how to call the functions themselves
 */
 #  define TET_SIGSAFE_DEF	sigset_t oldset;
-#  define TET_SIGSAFE_START	(void) tet_sigsafe_start(&oldset)
-#  define TET_SIGSAFE_END	(void) tet_sigsafe_end(&oldset)
+#  define TET_SIGSAFE_START	tet_sigsafe_start(&oldset)
+#  define TET_SIGSAFE_END	tet_sigsafe_end(&oldset)
 
 /* set of all blockable signals (to be blocked during critical code) */
    TET_EXPORT_DATA(sigset_t, tet_blockable_sigs);
diff --git a/src/tet3/inetlib/connect.c b/src/tet3/inetlib/connect.c
index c129c278..e6c239b7 100644
--- a/src/tet3/inetlib/connect.c
+++ b/src/tet3/inetlib/connect.c
@@ -124,7 +124,7 @@ register struct ptab *pp;
 			pp->pt_flags |= PF_ATTENTION;
 			return;
 		}
-        	(void) close(sd);
+		close(sd);
 		sd = nsd;
 	}
 
@@ -164,7 +164,7 @@ register struct ptab *pp;
 			}
 			/* else fall through */
 		default:
-			(void) sprintf(msg, fmt,
+			sprintf(msg, fmt,
 				inet_ntoa(tp->tp_sin.sin_addr),
 				(int) ntohs(tp->tp_sin.sin_port));
 			error(err, msg, tet_r2a(&pp->pt_rid));
diff --git a/src/tet3/inetlib/discon.c b/src/tet3/inetlib/discon.c
index f5274a43..04b4f389 100644
--- a/src/tet3/inetlib/discon.c
+++ b/src/tet3/inetlib/discon.c
@@ -71,7 +71,7 @@ struct ptab *pp;
 		tet_i2a(tp->tp_sd));
 
 	if (tp->tp_sd != INVALID_SOCKET) {
-		(void) SOCKET_CLOSE(tp->tp_sd);
+		SOCKET_CLOSE(tp->tp_sd);
 		tp->tp_sd = INVALID_SOCKET;
 	}
 
diff --git a/src/tet3/inetlib/host.c b/src/tet3/inetlib/host.c
index 9654ee50..c8e14fd8 100644
--- a/src/tet3/inetlib/host.c
+++ b/src/tet3/inetlib/host.c
@@ -112,7 +112,7 @@ char *host;
 
 	cp2->hc_addr = *((struct in_addr *) hp->h_addr);
 	cp2->hc_refcnt = 1;
-	(void) sprintf(cp2->hc_host, "%.*s",
+	sprintf(cp2->hc_host, "%.*s",
 		(int) sizeof cp2->hc_host - 1, host);
 
 	return(&cp2->hc_addr);
diff --git a/src/tet3/inetlib/rdwr.c b/src/tet3/inetlib/rdwr.c
index 23c350d8..52180c1e 100644
--- a/src/tet3/inetlib/rdwr.c
+++ b/src/tet3/inetlib/rdwr.c
@@ -119,7 +119,7 @@ register struct ptab *pp;
 		}
 		TDUMP(tet_Tio, 10, tp->tp_buf, DM_HDRSZ, msghdr);
 		pp->pt_flags &= ~PF_RCVHDR;
-		(void) tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
+		tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
 		if (pp->ptm_magic != DTM_MAGIC && pp->ptm_len) {
 			/* we are probably out of sync with sender */
 			error(0, "received bad message header,",
@@ -249,7 +249,7 @@ register struct ptab *pp;
 
 	ignsa.sa_handler = SIG_IGN;
 	ignsa.sa_flags = 0;
-	(void) sigemptyset(&ignsa.sa_mask);
+	sigemptyset(&ignsa.sa_mask);
 
 	/* set up variables for this message on first time through */
 	if ((pp->pt_flags & PF_INPROGRESS) == 0) {
@@ -278,7 +278,7 @@ register struct ptab *pp;
 					rc, msgdata);
 				tp->tp_cnt += rc;
 			}
-			(void) tet_dmlen2bs(rc, tp->tp_buf);
+			tet_dmlen2bs(rc, tp->tp_buf);
 		} while (err);
 		tp->tp_ptr = tp->tp_buf;
 		pp->pt_flags |= PF_INPROGRESS;
@@ -292,13 +292,13 @@ register struct ptab *pp;
 		Signals just cause the write to be restarted (in an attempt
 		to cope with systems without restartable system calls) */
 #  ifndef TET_THREADS
-	(void) sigaction(SIGPIPE, &ignsa, &oldsa);
+	sigaction(SIGPIPE, &ignsa, &oldsa);
 #  else
 	/* just block the signal for now so as to avoid interfering with
 	   another thread's usage of SIGPIPE */
-	(void) sigemptyset(&newset);
-	(void) sigaddset(&newset, SIGPIPE);
-	(void) TET_THR_SIGSETMASK(SIG_BLOCK, &newset, &oldset);
+	sigemptyset(&newset);
+	sigaddset(&newset, SIGPIPE);
+	TET_THR_SIGSETMASK(SIG_BLOCK, &newset, &oldset);
 #  endif /* TET_THREADS */
 
 	do {
@@ -308,7 +308,7 @@ register struct ptab *pp;
 	} while (rc < 0 && err == SOCKET_EINTR);
 
 #  ifndef TET_THREADS
-	(void) sigaction(SIGPIPE, &oldsa, (struct sigaction *)NULL);
+	sigaction(SIGPIPE, &oldsa, (struct sigaction *)NULL);
 #  else
 	if (rc < 0 && (err == EPIPE || err == ECONNRESET))
 	{
@@ -317,15 +317,15 @@ register struct ptab *pp;
 		   with another thread's usage of SIGPIPE, but the
 		   chances are very small.  Note that we unblock SIGPIPE
 		   explicitly, since it may be a member of "oldset". */
-		(void) sigaction(SIGPIPE, &ignsa, &oldsa);
-		(void) TET_THR_SIGSETMASK(SIG_UNBLOCK, &newset, (sigset_t *) 0);
+		sigaction(SIGPIPE, &ignsa, &oldsa);
+		TET_THR_SIGSETMASK(SIG_UNBLOCK, &newset, (sigset_t *) 0);
 
 		/* now restore the original mask and handler */
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
-		(void) sigaction(SIGPIPE, &oldsa, (struct sigaction *)NULL);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
+		sigaction(SIGPIPE, &oldsa, (struct sigaction *)NULL);
 	}
 	else
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
 #  endif /* TET_THREADS */
 
 	/* set state and flags according to results */
@@ -452,7 +452,7 @@ register struct ptab *pp;
 
 	TRACE2(tet_Tio, 4, "tet_ts_dead: close sd %s", tet_i2a(tp->tp_sd));
 
-	(void) SOCKET_CLOSE(tp->tp_sd);
+	SOCKET_CLOSE(tp->tp_sd);
 	tp->tp_sd = INVALID_SOCKET;
 	pp->pt_flags &= ~(PF_CONNECTED | PF_INPROGRESS);
 }
diff --git a/src/tet3/inetlib/rdwr.c.orig b/src/tet3/inetlib/rdwr.c.orig
index ece32ab3..9b9a06fe 100644
--- a/src/tet3/inetlib/rdwr.c.orig
+++ b/src/tet3/inetlib/rdwr.c.orig
@@ -112,7 +112,7 @@ register struct ptab *pp;
 		}
 		TDUMP(tet_Tio, 10, tp->tp_buf, DM_HDRSZ, msghdr);
 		pp->pt_flags &= ~PF_RCVHDR;
-		(void) tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
+		tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
 		if (pp->ptm_magic != DTM_MAGIC && pp->ptm_len) {
 			/* we are probably out of sync with sender */
 			error(0, "received bad message header,",
@@ -267,7 +267,7 @@ register struct ptab *pp;
 					rc, msgdata);
 				tp->tp_cnt += rc;
 			}
-			(void) tet_dmlen2bs(rc, tp->tp_buf);
+			tet_dmlen2bs(rc, tp->tp_buf);
 		} while (err);
 		tp->tp_ptr = tp->tp_buf;
 		pp->pt_flags |= PF_INPROGRESS;
@@ -285,9 +285,9 @@ register struct ptab *pp;
 #  else
 	/* just block the signal for now so as to avoid interfering with
 	   another thread's usage of SIGPIPE */
-	(void) sigemptyset(&newset);
-	(void) sigaddset(&newset, SIGPIPE);
-	(void) TET_THR_SIGSETMASK(SIG_BLOCK, &newset, &oldset);
+	sigemptyset(&newset);
+	sigaddset(&newset, SIGPIPE);
+	TET_THR_SIGSETMASK(SIG_BLOCK, &newset, &oldset);
 #  endif /* TET_THREADS */
 
 	do {
@@ -297,7 +297,7 @@ register struct ptab *pp;
 	} while (rc < 0 && err == SOCKET_EINTR);
 
 #  ifndef TET_THREADS
-	(void) signal(SIGPIPE, (SIG_FUNC_T (*) ()) pipe_save);
+	signal(SIGPIPE, (SIG_FUNC_T (*) ()) pipe_save);
 #  else
 	if (rc < 0 && (err == EPIPE || err == ECONNRESET))
 	{
@@ -307,14 +307,14 @@ register struct ptab *pp;
 		   chances are very small.  Note that we unblock SIGPIPE
 		   explicitly, since it may be a member of "oldset". */
 		pipe_save = signal(SIGPIPE, SIG_IGN);
-		(void) TET_THR_SIGSETMASK(SIG_UNBLOCK, &newset, (sigset_t *) 0);
+		TET_THR_SIGSETMASK(SIG_UNBLOCK, &newset, (sigset_t *) 0);
 
 		/* now restore the original mask and handler */
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
-		(void) signal(SIGPIPE, (SIG_FUNC_T (*) ()) pipe_save);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
+		signal(SIGPIPE, (SIG_FUNC_T (*) ()) pipe_save);
 	}
 	else
-		(void) TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
+		TET_THR_SIGSETMASK(SIG_SETMASK, &oldset, (sigset_t *) 0);
 #  endif /* TET_THREADS */
 
 	/* set state and flags according to results */
@@ -441,7 +441,7 @@ register struct ptab *pp;
 
 	TRACE2(tet_Tio, 4, "tet_ts_dead: close sd %s", tet_i2a(tp->tp_sd));
 
-	(void) SOCKET_CLOSE(tp->tp_sd);
+	SOCKET_CLOSE(tp->tp_sd);
 	tp->tp_sd = INVALID_SOCKET;
 	pp->pt_flags &= ~(PF_CONNECTED | PF_INPROGRESS);
 }
diff --git a/src/tet3/servlib/fio.c b/src/tet3/servlib/fio.c
index 96f9769d..da666ab5 100644
--- a/src/tet3/servlib/fio.c
+++ b/src/tet3/servlib/fio.c
@@ -351,7 +351,7 @@ register struct ptab *pp;
 		done = 1;
 		for (ftp = ftab; ftp; ftp = ftp->ft_next)
 			if (ftp->ft_ptab == pp) {
-				(void) dofclose(ftp);
+				dofclose(ftp);
 				done = 0;
 				break;
 			}
@@ -416,7 +416,7 @@ register struct ftab *ftp;
 
 	if (ftp) {
 		if (ftp->ft_fp)
-			(void) fclose(ftp->ft_fp);
+			fclose(ftp->ft_fp);
 		if (ftp->ft_name) {
 			TRACE2(tet_Tbuf, 6, "free ftab fname = %s",
 				tet_i2x(ftp->ft_name));
diff --git a/src/tet3/servlib/logon.c b/src/tet3/servlib/logon.c
index 72c6e6c0..b2424ccf 100644
--- a/src/tet3/servlib/logon.c
+++ b/src/tet3/servlib/logon.c
@@ -140,7 +140,7 @@ register struct ptab *pp;
 		error(0, "wanted to log on to", tet_ptptype(wantptype));
 		error(0, "but found", tet_r2a(&pp->pt_rid));
 		if (pp->pt_flags & PF_LOGGEDON)
-			(void) tet_ti_logoff(pp, 1);
+			tet_ti_logoff(pp, 1);
 		tet_ts_dead(pp);
 	}
 
diff --git a/src/tet3/servlib/smain.c b/src/tet3/servlib/smain.c
index d9ab41dc..ef03a613 100644
--- a/src/tet3/servlib/smain.c
+++ b/src/tet3/servlib/smain.c
@@ -89,10 +89,10 @@ char **argv;
 
 	if (needtetroot) {
 		if (argc > 0)
-			(void) sprintf(tet_root, "%.*s",
+			sprintf(tet_root, "%.*s",
 				(int) sizeof tet_root - 1, *argv);
 		else {
-			(void) sprintf(buf, "%.14s [options] tetrootdir",
+			sprintf(buf, "%.14s [options] tetrootdir",
 				tet_progname);
 			fatal(0, "usage:", buf);
 		}
diff --git a/src/tet3/servlib/sproc.c b/src/tet3/servlib/sproc.c
index 805bd045..5121abdb 100644
--- a/src/tet3/servlib/sproc.c
+++ b/src/tet3/servlib/sproc.c
@@ -269,11 +269,11 @@ register struct ptab *pp;
 	register struct avmsg *mp = (struct avmsg *) pp->ptm_data;
 	register int n;
 
-	(void) printf("%s: call to op_print(): argc = %d\n",
+	printf("%s: call to op_print(): argc = %d\n",
 		tet_progname, mp->av_argc);
 	for (n = 0; n < (int) mp->av_argc; n++)
-		(void) printf("%s\n", mp->av_argv[n]);
-	(void) fflush(stdout);
+		printf("%s\n", mp->av_argv[n]);
+	fflush(stdout);
 
 	pp->ptm_rc = ER_OK;
 	pp->ptm_mtype = MT_NODATA;
diff --git a/src/tet3/servlib/tctalk.c b/src/tet3/servlib/tctalk.c
index 5cf8e06c..cdd07cda 100644
--- a/src/tet3/servlib/tctalk.c
+++ b/src/tet3/servlib/tctalk.c
@@ -149,7 +149,7 @@ int sysid;
 
 	/* do the rest of the logon processing */
 	if (tc_l3(pp) < 0) {
-		(void) tet_ti_logoff(pp, 0);
+		tet_ti_logoff(pp, 0);
 		return(-1);
 	}
 
diff --git a/src/tet3/servlib/tcxconf.c b/src/tet3/servlib/tcxconf.c
index 9e61fd00..b49bfc87 100644
--- a/src/tet3/servlib/tcxconf.c
+++ b/src/tet3/servlib/tcxconf.c
@@ -174,7 +174,7 @@ register struct cflist *mlp, *vlp;
 	for (cp1 = vlp->cf_conf; cp1 < vlp->cf_conf + vlp->cf_nconf; cp1++) {
 		if (tet_remvar(*cp1, -1) != *cp1)
 			continue;
-		(void) sprintf(buf, fmt, sysid % 1000,
+		sprintf(buf, fmt, sysid % 1000,
 			sizeof buf - sizeof fmt, *cp1);
 		if (BUFCHK((char **) &tcfg.cf_conf, &tcfg.cf_lconf, (int) ((tcfg.cf_nconf + 1) * sizeof *tcfg.cf_conf)) < 0)
 			return(-1);
diff --git a/src/tet3/servlib/titcmenv.c b/src/tet3/servlib/titcmenv.c
index 47eed3e0..e585d681 100644
--- a/src/tet3/servlib/titcmenv.c
+++ b/src/tet3/servlib/titcmenv.c
@@ -82,19 +82,19 @@ register int *sname, nsname;
 #endif
 
 	/* start with the sysid and parent sysid arguments */
-	(void) sprintf(sysidstr, "%d", tet_mysysid);
-	(void) sprintf(psysidstr, "%d", psysid);
+	sprintf(sysidstr, "%d", tet_mysysid);
+	sprintf(psysidstr, "%d", psysid);
 	needlen = sizeof envname + strlen(sysidstr) + strlen(psysidstr) + 6;
 
 	/* add the snid argument */
 	if (snid >= 0L) {
-		(void) sprintf(snidstr, "%ld", snid);
+		sprintf(snidstr, "%ld", snid);
 		needlen += strlen(snidstr) + 3;
 	}
 
 	/* add the xrid argument */
 	if (xrid >= 0L) {
-		(void) sprintf(xridstr, "%ld", xrid);
+		sprintf(xridstr, "%ld", xrid);
 		needlen += strlen(xridstr) + 3;
 	}
 
diff --git a/src/tet3/servlib/xdxfile.c b/src/tet3/servlib/xdxfile.c
index 3737c899..ddeaa17c 100644
--- a/src/tet3/servlib/xdxfile.c
+++ b/src/tet3/servlib/xdxfile.c
@@ -95,7 +95,7 @@ char *ifile, *ofile;
 
 	/* open the transfer file on the master system */
 	if ((xfid = xd_tfopen(ofile, (int) stbuf.st_mode)) < 0) {
-		(void) fclose(ifp);
+		fclose(ifp);
 		return(-1);
 	}
 
@@ -103,7 +103,7 @@ char *ifile, *ofile;
 	rc = xd_wrloop(ifp, xfid, ifile);
 
 	/* close the local file and the transfer file on the master system */
-	(void) fclose(ifp);
+	fclose(ifp);
 	return(xd_tfclose(xfid) < 0 ? -1 : rc);
 }
 
diff --git a/src/tet3/tcc/config.c b/src/tet3/tcc/config.c
index d46a359e..6a16ae90 100644
--- a/src/tet3/tcc/config.c
+++ b/src/tet3/tcc/config.c
@@ -389,7 +389,7 @@ struct cflist *lp;
 			proccfline(buf, lp, lcount, fname);
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 }
 
 /*
@@ -407,7 +407,7 @@ int lineno;
 
 	/* check the format of the config line */
 	if (!tet_equindex(line) || !tet_remvar(line, -1)) {
-		(void) sprintf(msg, fmt, lineno);
+		sprintf(msg, fmt, lineno);
 		error(0, msg, fname);
 		conferrors++;
 		return;
@@ -487,7 +487,7 @@ int mode;
 		return;
 
 	/* here to add a default value of !TET_OUTPUT_CAPTURE */
-	(void) sprintf(line, "%s=%s", name,
+	sprintf(line, "%s=%s", name,
 		getmcflag("TET_OUTPUT_CAPTURE", mode) ? "False" : "True");
 	proccfl2(line, &MCFLIST(mode));
 }
@@ -511,7 +511,7 @@ int mode;
 		return;
 
 	/* here to add a default value of TET_OUTPUT_CAPTURE */
-	(void) sprintf(line, "%s=%s", name,
+	sprintf(line, "%s=%s", name,
 		getmcflag("TET_OUTPUT_CAPTURE", mode) ? "True" : "False");
 	proccfl2(line, &MCFLIST(mode));
 }
@@ -634,7 +634,7 @@ void distcfg()
 		for (dvp = dvar; dvp < dvar + Ndvar; dvp++) {
 			if (!dvp->dv_value || !*dvp->dv_value)
 				continue;
-			(void) sprintf(buf, "%s=%.*s",dvp->dv_name,
+			sprintf(buf, "%s=%.*s",dvp->dv_name,
 				(int) sizeof buf - dvp->dv_len - 1,
 				dvp->dv_value);
 			proccfl2(buf, &CFLIST(sp, CONF_DIST));
@@ -722,7 +722,7 @@ void distcfg()
 					if (sysid == 0)
 						ASSERT(isabspathloc(p));
 					else if (!isabspathrem(p)) {
-						(void) sprintf(buf, fmt1,
+						sprintf(buf, fmt1,
 							dvp->dv_name, sysid);
 						error(0, buf, "is not an "
 							"absolute path name");
@@ -731,7 +731,7 @@ void distcfg()
 				}
 			}
 			else if (dvp->dv_needed) {
-				(void) sprintf(buf, fmt2, dvp->dv_name);
+				sprintf(buf, fmt2, dvp->dv_name);
 				error(0, buf, tet_i2a(sysid)); 
 				conferrors++;
 			}
@@ -899,7 +899,7 @@ void doconfig()
 		for (cp = lp->cf_conf; cp < lp->cf_conf + lp->cf_nconf; cp++) {
 			if (!*cp)
 				continue;
-			(void) sprintf(buf, fmt, sysid % 1000,
+			sprintf(buf, fmt, sysid % 1000,
 				(int) (sizeof buf - sizeof fmt), *cp);
 			RBUFCHK((char **) &tmp.cf_conf, &tmp.cf_lconf,
 				(int) ((tmp.cf_nconf + 1) * sizeof *tmp.cf_conf));
@@ -1106,7 +1106,7 @@ int mode;
 
 	/* make sure that the remote config file is accessible */
 	if (tcc_access(sp->sy_sysid, fname, 04) < 0) {
-		(void) sprintf(msg, fmt1, prcfmode(mode), MAXPATH, fname);
+		sprintf(msg, fmt1, prcfmode(mode), MAXPATH, fname);
 		error(errno ? errno : tet_tcerrno, msg, tet_i2a(sp->sy_sysid));
 		conferrors++;
 		return;
@@ -1137,7 +1137,7 @@ int mode;
 
 	/* perform a config variable exchange with the remote system */
 	if (tet_tcxconfig(sp->sy_sysid, fname, tp, &vopts, to) < 0) {
-		(void) sprintf(msg, fmt2, prcfmode(mode));
+		sprintf(msg, fmt2, prcfmode(mode));
 		error(tet_tcerrno, msg, tet_i2a(sp->sy_sysid));
 		conferrors++;
 	}
@@ -1215,7 +1215,7 @@ int mode;
 			case 'f':
 				break;
 			default:
-				(void) sprintf(msg, fmt, vp->bv_name,
+				sprintf(msg, fmt, vp->bv_name,
 					prcfmode(mode));
 				error(0, msg, tet_i2a(sysid));
 				conferrors++;
@@ -1293,7 +1293,7 @@ static void reportdcfg()
 		lp = &CFLIST(sp, CONF_DIST);
 		for (cp = lp->cf_conf; cp < lp->cf_conf + lp->cf_nconf; cp++) {
 			RBUFCHK(&buf, &buflen, (int) strlen(*cp) + 12);
-			(void) sprintf(buf, "TET_REM%03d_%s",
+			sprintf(buf, "TET_REM%03d_%s",
 				sysid % 1000, *cp);
 			jnl_cfg(buf);
 		}
@@ -1372,11 +1372,11 @@ char *fname, *type;
 	}
 
 	/* write out the variables */
-	(void) fprintf(fp, "# %s configuration variables\n\n", type);
+	fprintf(fp, "# %s configuration variables\n\n", type);
 	for (cp = lp->cf_conf; cp < lp->cf_conf + lp->cf_nconf; cp++)
 		if (fprintf(fp, "%s\n", *cp) < 0) {
 			error(errno, "write error on", fname);
-			(void) fclose(fp);
+			fclose(fp);
 			return(-1);
 		}
 
@@ -1509,7 +1509,7 @@ struct cfstack *stp;
 				p = tet_equindex(*cp);
 				ASSERT(*p == '=');
 				*p = '\0';
-				(void) sprintf(msg, fmt, *cp);
+				sprintf(msg, fmt, *cp);
 				*p = '=';
 				error(0, msg,
 		"variable assignment in the distributed configuration");
@@ -1633,7 +1633,7 @@ struct cfstack *stp;
 		len += (int) strlen(p);
 	buflen = (int) strlen(*cp) + 1;
 	RBUFCHK(cp, &buflen, len);
-	(void) sprintf(*cp, "%s=%s%s%s", name, head, p ? p : "", tail);
+	sprintf(*cp, "%s=%s%s%s", name, head, p ? p : "", tail);
 
 	TRACE2(tet_Ttcc, 8, "cve3(): assignment after expansion: \"%s\"", *cp);
 }
@@ -1692,7 +1692,7 @@ struct cfstack *stp1;
 		p = cve3_opmode(name, var, mmm, sysid, mode, stp1);
 
 	if (!p) {
-		(void) sprintf(msg, fmt, fullvar);
+		sprintf(msg, fmt, fullvar);
 		cve_error(name, mode, sysid, msg);
 	}
 
@@ -1889,18 +1889,18 @@ int mode, sysid;
 
 	if (mode == CONF_DIST) {
 		p = "Distributed";
-		(void) sprintf(msg2, conf);
+		sprintf(msg2, conf);
 	}
 	else {
 		p = prcfmode(mode);
 		if (sysid < 0) {
-			(void) sprintf(msg2, "%s %s", p, conf);
+			sprintf(msg2, "%s %s", p, conf);
 			p = "master";
 		}
 		else
-			(void) sprintf(msg2, fmt2, conf, sysid);
+			sprintf(msg2, fmt2, conf, sysid);
 	}
-	(void) sprintf(msg1, fmt1, text, name, p);
+	sprintf(msg1, fmt1, text, name, p);
 	error(0, msg1, msg2);
 
 	conferrors++;
@@ -2221,7 +2221,7 @@ int sysid;
 	ASSERT(IS_CFSETUP(sp, CONF_DIST));
 	lp = &CFLIST(sp, CONF_DIST);
 
-	(void) sprintf(buf, "%s=%.*s", name,
+	sprintf(buf, "%s=%.*s", name,
 		(int) sizeof buf - (int) strlen(name) - 2, value);
 	proccfl2(buf, lp);
 }
@@ -2416,7 +2416,7 @@ int mode;
 	case CONF_DIST:
 		return("DIST");
 	default:
-		(void) sprintf(msg, "%s%d", text, mode);
+		sprintf(msg, "%s%d", text, mode);
 		return(msg);
 	}
 }
@@ -2478,7 +2478,7 @@ int opmode;
 	ASSERT(TCFNAME(cfmode));
 	if (BUFCHK(&var, &lvar, (int) (sizeof envname + strlen(TCFNAME(cfmode)) + 1)) < 0)
 		return(-1);
-	(void) sprintf(var, "%s=%s", envname, TCFNAME(cfmode));
+	sprintf(var, "%s=%s", envname, TCFNAME(cfmode));
 
 	/* put the variable in the environment */
 	if (tet_putenv(var) < 0)
@@ -2499,7 +2499,7 @@ int opmode;
 
 static void confgiveup()
 {
-	(void) fprintf(stderr,
+	fprintf(stderr,
 		"%s: giving up after %d configuration error%s\n",
 		tet_progname, conferrors, conferrors == 1 ? "" : "s");
 	tcc_exit(1);
@@ -2518,16 +2518,16 @@ void config_cleanup()
 
 	for (fname = tcfname; fname < &tcfname[Ntcfname]; fname++)
 		if (*fname)
-			(void) UNLINK(*fname);
+			UNLINK(*fname);
 
 #else 	/* -START-LITE-CUT- */
 
 	if (ecfname)
-		(void) UNLINK(ecfname);
+		UNLINK(ecfname);
 	if (dcfname)
-		(void) UNLINK(dcfname);
+		UNLINK(dcfname);
 	if (ccfname)
-		(void) UNLINK(ccfname);
+		UNLINK(ccfname);
 
 #endif /* TET_LITE */	/* -END-LITE-CUT- */
 
diff --git a/src/tet3/tcc/copysave.c b/src/tet3/tcc/copysave.c
index 5c16d311..bab53e9b 100644
--- a/src/tet3/tcc/copysave.c
+++ b/src/tet3/tcc/copysave.c
@@ -96,7 +96,7 @@ void rtlcopy()
 	/* do the copy */
 	errno = 0;
 	if (tet_fcopy(tet_tsroot, dest) < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, tet_tsroot, MAXPATH, dest);
+		sprintf(msg, fmt, MAXPATH, tet_tsroot, MAXPATH, dest);
 		fatal(errno, msg, "the local system");
 	}
 
@@ -151,7 +151,7 @@ char *rtdir;
 	/* do the copy */
 	errno = 0;
 	if (tet_tcrcopy(sysid, tsroot, dest) < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, tsroot, MAXPATH, dest);
+		sprintf(msg, fmt, MAXPATH, tsroot, MAXPATH, dest);
 		if (!IS_ER_ERRNO(tet_tcerrno))
 			errno = 0;
 		fatal(errno ? errno : tet_tcerrno, msg, tet_i2a(sysid));
@@ -235,7 +235,7 @@ char tdir[];
 	/* here to create the tmpdir */
 	errno = 0;
 	if (tcc_mkdir(sysid, tdir) < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, tdir);
+		sprintf(msg, fmt, MAXPATH, tdir);
 		fatal(errno ? errno : tet_tcerrno, msg, tet_i2a(sysid));
 	}
 
@@ -398,7 +398,7 @@ char *from, *to;
 		err = IS_ER_ERRNO(tet_tcerrno) ? errno : tet_tcerrno;
 #endif /* TET_LITE */	/* -END-LITE-CUT- */
 	if (rc < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, from);
+		sprintf(msg, fmt, MAXPATH, from);
 		prperror(prp, *prp->pr_sys, err, msg, to);
 		return(-1);
 	}
@@ -459,7 +459,7 @@ struct systab *sp;
 
 	/* create the results directory on the remote system if necessary */
 	if (tet_tcmkalldirs(sp->sy_sysid, resroot) < 0) {
-		(void) sprintf(msg, fmt, "",
+		sprintf(msg, fmt, "",
 			sizeof msg - sizeof fmt, resroot);
 		if (!IS_ER_ERRNO(tet_tcerrno))
 			errno = 0;
@@ -469,7 +469,7 @@ struct systab *sp;
 
 	/* create the saved files directory on the remote system */
 	if ((sfdir = tet_tcmksdir(sp->sy_sysid, resroot, resdirsuffix())) == (char *) 0) {
-		(void) sprintf(msg, fmt, below,
+		sprintf(msg, fmt, below,
 			sizeof msg - sizeof fmt - sizeof below, resroot);
 		error(tet_tcerrno, msg, tet_i2a(sp->sy_sysid));
 		return(-1);
@@ -548,7 +548,7 @@ int nsfiles;
 		prp->pr_currmode);
 
 	if (tsfiles) {
-		(void) sprintf(subdir, remote, *prp->pr_sys % 1000);
+		sprintf(subdir, remote, *prp->pr_sys % 1000);
 		fullpath(resdirname(), subdir, path, sizeof path,
 			*prp->pr_sys ? 1 : 0);
 		tcexecdir(prp, path, savedir, sizeof savedir);
@@ -571,7 +571,7 @@ int nsfiles;
 #endif /* TET_LITE */	/* -END-LITE-CUT- */
 
 	if (rc < 0) {
-		(void) sprintf(msg, fmt, MAXPATH, prp->pr_tcedir, *prp->pr_sys);
+		sprintf(msg, fmt, MAXPATH, prp->pr_tcedir, *prp->pr_sys);
 		prperror(prp, tsfiles ? 0 : *prp->pr_sys, tet_tcerrno,
 			msg, savedir);
 	}
diff --git a/src/tet3/tcc/dtcc.c b/src/tet3/tcc/dtcc.c
index edff0fd8..d0b474be 100644
--- a/src/tet3/tcc/dtcc.c
+++ b/src/tet3/tcc/dtcc.c
@@ -238,7 +238,7 @@ static int tccdlogon()
 			dir = getdcfg("TET_ROOT", sysid);
 			ASSERT(dir && *dir);
 			if (tcc_access(sysid, dir, 04) < 0) {
-				(void) sprintf(msg, fmt,
+				sprintf(msg, fmt,
 					sizeof msg - sizeof fmt, dir);
 				error(errno, msg, tet_i2a(sysid));
 				return(-1);
@@ -246,7 +246,7 @@ static int tccdlogon()
 			dir = getdcfg("TET_TSROOT", sysid);
 			ASSERT(dir && *dir);
 			if (tcc_access(sysid, dir, 04) < 0) {
-				(void) sprintf(msg, fmt,
+				sprintf(msg, fmt,
 					sizeof msg - sizeof fmt, dir);
 				error(errno, msg, tet_i2a(sysid));
 				return(-1);
diff --git a/src/tet3/tcc/environ.c b/src/tet3/tcc/environ.c
index 1620d361..354daac2 100644
--- a/src/tet3/tcc/environ.c
+++ b/src/tet3/tcc/environ.c
@@ -106,14 +106,14 @@ struct systab *sp;
 	for (cvp = comvar; cvp < comvar + Ncomvar; cvp++) {
 		if ((val = getdcfg(*cvp, sp->sy_sysid)) == (char *) 0)
 			val = "";
-		(void) sprintf(buf, "%s=%.*s", *cvp,
+		sprintf(buf, "%s=%.*s", *cvp,
 			(int) sizeof buf - (int) strlen(*cvp) - 2, val);
 		ASSERT(ep < &envstr[Nenvstr]);
 		*ep++ = rstrstore(buf);
 	}
 
 	/* then add in TET_CODE */
-	(void) sprintf(buf, "TET_CODE=%.*s", MAXPATH, sp->sy_rcfname);
+	sprintf(buf, "TET_CODE=%.*s", MAXPATH, sp->sy_rcfname);
 	ASSERT(ep < &envstr[Nenvstr]);
 	*ep++ = rstrstore(buf);
 
diff --git a/src/tet3/tcc/error.c b/src/tet3/tcc/error.c
index 7fcd3a9c..fcd76fb6 100644
--- a/src/tet3/tcc/error.c
+++ b/src/tet3/tcc/error.c
@@ -86,8 +86,8 @@ void tcc_error(int errnum, const char *file, int line, const char *s1,
 	if (jnl_usable())
 		jnl_tcc_msg(msg);
 	else {
-		(void) fprintf(stderr, "%s %s\n", tet_progname, msg);
-		(void) fflush(stderr);
+		fprintf(stderr, "%s %s\n", tet_progname, msg);
+		fflush(stderr);
 	}
 }
 
@@ -116,7 +116,7 @@ void tcc_prperror(struct proctab *prp, int sysid, int errnum, const char *file,
 
 	/* format the message */
 	if (sysid >= 0)
-		(void) sprintf(text, fmt, sysid);
+		sprintf(text, fmt, sysid);
 	else
 		text[0] = '\0';
 	errfmt(errnum, file, line, s1, s2, text, msg);
@@ -136,7 +136,7 @@ static void errfmt(int errnum, const char *file, int line, const char *s1,
 	register char *p = msg;
 
 	/* generate the source file and line number */
-	(void) sprintf(p, "(%s, %d): ", file, line);
+	sprintf(p, "(%s, %d): ", file, line);
 	p += strlen(p);
 
 	/* append the first message string */
diff --git a/src/tet3/tcc/exec.c b/src/tet3/tcc/exec.c
index ba53100c..03597d0b 100644
--- a/src/tet3/tcc/exec.c
+++ b/src/tet3/tcc/exec.c
@@ -90,7 +90,7 @@ char *path, **argv, *tcdir, *outfile;
 	sp = syfind(*prp->pr_sys);
 	ASSERT(sp);
 	if (sp->sy_activity != prp->pr_activity) {
-		(void) sprintf(buf, fmt, prp->pr_activity);
+		sprintf(buf, fmt, prp->pr_activity);
 		TRACE3(tet_Ttcc, 6, "putenv \"%s\" on system %s",
 			buf, tet_i2a(*prp->pr_sys));
 		if (tcc_putenv(*prp->pr_sys, buf) < 0) {
diff --git a/src/tet3/tcc/jnlproc.c b/src/tet3/tcc/jnlproc.c
index 8417b9c2..c45a571e 100644
--- a/src/tet3/tcc/jnlproc.c
+++ b/src/tet3/tcc/jnlproc.c
@@ -132,7 +132,7 @@ struct proctab *prp;
 	if ((fp = open_xresdfile(prp)) != (FILE *) 0) {
 		TRACE2(tet_Ttcc, 6, "using XRESD file %s", prp->pr_xfname);
 		rc = jp_xres(prp, fp, prp->pr_xfname);
-		(void) fclose(fp);
+		fclose(fp);
 	}
 	else
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
@@ -185,7 +185,7 @@ struct proctab *prp;
 		||
 			(getremfile(prp, prp->pr_tetxres, tet_basename(fname)) < 0)
 		) {
-			(void) UNLINK(fname);
+			UNLINK(fname);
 			return(-1);
 		}
 	}
@@ -208,7 +208,7 @@ struct proctab *prp;
 
 	/* process it */
 	rc = jp_xres(prp, fp, prp->pr_tetxres);
-	(void) fclose(fp);
+	fclose(fp);
 
 
 #ifndef TET_LITE	/* -START-LITE-CUT- */
@@ -217,7 +217,7 @@ struct proctab *prp;
 	** from a remote system, unlink it now
 	*/
 	if (fname != prp->pr_tetxres)
-		(void) UNLINK(fname);
+		UNLINK(fname);
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 
 	return(rc);
@@ -265,7 +265,7 @@ char *fname;
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 		) {
 			tpno = -1;
-			(void) sscanf(flds[1], "%*s %d", &tpno);
+			sscanf(flds[1], "%*s %d", &tpno);
 			if (jp_reorder(prp, fp, fname, tpno, line, buf) < 0)
 				rc = -1;
 		}
@@ -311,14 +311,14 @@ int tpno;
 		}
 		switch (id = atoi(flds[0])) {
 		case TET_JNL_TP_RESULT:
-			(void) sscanf(flds[1], "%*s %*s %d", &result);
+			sscanf(flds[1], "%*s %*s %d", &result);
 			done = 1;
 			break;
 		case TET_JNL_IC_START:
 		case TET_JNL_IC_END:
 		case TET_JNL_TP_START:
 			line[0] = '\0';
-			(void) fseek(fp, offs, SEEK_SET);
+			fseek(fp, offs, SEEK_SET);
 			done = 1;
 			break;
 		}
@@ -331,7 +331,7 @@ int tpno;
 		lp1->xr_block = 0L;
 		lp1->xr_sequence = 0L;
 		if (id == TET_JNL_TC_INFO)
-			(void) sscanf(flds[1], "%*s %*s %ld %ld %ld",
+			sscanf(flds[1], "%*s %*s %ld %ld %ld",
 				&lp1->xr_context, &lp1->xr_block,
 				&lp1->xr_sequence);
 		lp1->xr_id = id;
@@ -547,7 +547,7 @@ struct proctab *prp;
 	if (fgets(buf, sizeof buf, fp) == (char *) 0) {
 		TRACE2(tet_Ttcc, 6, "open_xresdfile(): %s is empty",
 			prp->pr_xfname);
-		(void) fclose(fp);
+		fclose(fp);
 		return((FILE *) 0);
 	}
 	
diff --git a/src/tet3/tcc/journal.c b/src/tet3/tcc/journal.c
index 79f9156f..93e29152 100644
--- a/src/tet3/tcc/journal.c
+++ b/src/tet3/tcc/journal.c
@@ -231,7 +231,7 @@ struct proctab *prp;
 		return(-1);
 	}
 	else if (tet_fioclex(FILENO(fp)) < 0) {
-		(void) fclose(fp);
+		fclose(fp);
 		return(-1);
 	}
 
@@ -264,11 +264,11 @@ char *dir, *prefix;
 	int fd;
 
 	for (try = 0; try < trymax; try++) {
-		(void) sprintf(fname, fmt, (int) sizeof fname - 14,
+		sprintf(fname, fmt, (int) sizeof fname - 14,
 			dir, prefix, tet_mypid, salt);
 		errno = 0;
 		if ((fd = OPEN(fname, O_WRONLY|O_CREAT|O_EXCL, MODEANY)) >= 0)
-			(void) CLOSE(fd);
+			CLOSE(fd);
 		if (fd >= 0 || errno != EEXIST)
 			return(fname);
 		for (p = &salt[sizeof salt - 2]; p >= salt; p--)
@@ -307,7 +307,7 @@ char **argv;
 	int sp;
 
 	/* generate the first part */
-	(void) sprintf(s1, "%s %s %s", tcc_version,
+	sprintf(s1, "%s %s %s", tcc_version,
 		jnl_time(now), jnl_date(now));
 
 	/* determine the user id and name */
@@ -321,7 +321,7 @@ char **argv;
 	}
 
 	/* generate the second part */
-	(void) sprintf(p2, "User: %s (%d) TCC Start, Command line:",
+	sprintf(p2, "User: %s (%d) TCC Start, Command line:",
 		user, (int) uid);
 	p2 += strlen(p2);
 
@@ -391,7 +391,7 @@ void jnl_uname()
 		return;
 	}
 
-	(void) sprintf(s1, "%.*s %.*s %.*s %.*s %.*s",
+	sprintf(s1, "%.*s %.*s %.*s %.*s %.*s",
 		(int) sizeof uts.sysname, uts.sysname,
 		(int) sizeof uts.nodename, uts.nodename,
 		(int) sizeof uts.release, uts.release,
@@ -413,7 +413,7 @@ register struct proctab *prp;
 	register char *p;
 	register int needlen;
 
-	(void) sprintf(s1, "%d %.*s %s", prp->pr_activity,
+	sprintf(s1, "%d %.*s %s", prp->pr_activity,
 		MAXPATH, prp->pr_scen->sc_tcname, jnl_time(time((time_t *) 0)));
 
 	needlen = sizeof s2p1fmt + REFSZ;
@@ -423,10 +423,10 @@ register struct proctab *prp;
 	RBUFCHK(&s2, &s2len, needlen);
 	p = s2;
 
-	(void) sprintf(p, s2p1fmt, jnl_scenref(prp));
+	sprintf(p, s2p1fmt, jnl_scenref(prp));
 	if (prp->pr_exiclist) {
 		p += strlen(p);
-		(void) sprintf(p, s2p2fmt, prp->pr_exiclist);
+		sprintf(p, s2p2fmt, prp->pr_exiclist);
 	}
 
 	jnl_write(TET_JNL_INVOKE_TC, s1, s2, prp->pr_jfp, prp->pr_jfname);
@@ -439,7 +439,7 @@ int mode;
 {
 	char s1[MAXPATH + LONUMSZ + 2];
 
-	(void) sprintf(s1, "%.*s %s", MAXPATH, fname, jnl_mode(mode));
+	sprintf(s1, "%.*s %s", MAXPATH, fname, jnl_mode(mode));
 	jnl_cfg_start(s1);
 }
 
@@ -452,7 +452,7 @@ int sysid, mode;
 	static char fmt[] = "remote_%03d %s";
 	char s1[sizeof fmt + LNUMSZ + LONUMSZ];
 
-	(void) sprintf(s1, fmt, sysid, jnl_mode(mode));
+	sprintf(s1, fmt, sysid, jnl_mode(mode));
 	jnl_cfg_start(s1);
 }
 
@@ -522,9 +522,9 @@ struct proctab *prp;
 	static char fmt[] = "TC End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s1, "%d %d %s", prp->pr_activity, prp->pr_jnlstatus,
+	sprintf(s1, "%d %d %s", prp->pr_activity, prp->pr_jnlstatus,
 		jnl_time(time((time_t *) 0)));
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_TC_END, s1, s2, prp->pr_jfp, prp->pr_jfname);
 	jnl_itrace(TET_JNL_TC_END, s1, s2);
 }
@@ -554,7 +554,7 @@ struct proctab *prp;
 	static char fmt[] = "Build Start, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_bc_start(prp, TET_JNL_BUILD_START, s2);
 }
 
@@ -564,7 +564,7 @@ struct proctab *prp;
 	static char fmt[] = "Clean Start, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_bc_start(prp, TET_JNL_CLEAN_START, s2);
 }
 
@@ -575,7 +575,7 @@ char *s2;
 {
 	char s1[LNUMSZ + MAXPATH + TIMESZ + 3];
 
-	(void) sprintf(s1, "%d %.*s %s", prp->pr_activity, MAXPATH,
+	sprintf(s1, "%d %.*s %s", prp->pr_activity, MAXPATH,
 		prp->pr_scen->sc_tcname, jnl_time(time((time_t *) 0)));
 
 	jnl_write(id, s1, s2, prp->pr_jfp, prp->pr_jfname);
@@ -588,7 +588,7 @@ struct proctab *prp;
 	static char fmt[] = "Build End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_bc_end(prp, TET_JNL_BUILD_END, s2);
 }
 
@@ -598,7 +598,7 @@ struct proctab *prp;
 	static char fmt[] = "Clean End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_bc_end(prp, TET_JNL_CLEAN_END, s2);
 }
 
@@ -609,7 +609,7 @@ char *s2;
 {
 	char s1[(LNUMSZ * 2) + TIMESZ + 3];
 
-	(void) sprintf(s1, "%d %d %s", prp->pr_activity, prp->pr_jnlstatus,
+	sprintf(s1, "%d %d %s", prp->pr_activity, prp->pr_jnlstatus,
 		jnl_time(time((time_t *) 0)));
 
 	jnl_write(id, s1, s2, prp->pr_jfp, prp->pr_jfname);
@@ -623,7 +623,7 @@ struct proctab *prp;
 	char *s1 = tet_i2a(prp->pr_scen->sc_count);
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_PRL_START, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
 
@@ -633,7 +633,7 @@ struct proctab *prp;
 	static char fmt[] = "Parallel End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_PRL_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -645,7 +645,7 @@ struct proctab *prp;
 	static char fmt[] = "%sSequential Start, %s";
 	char s2[sizeof fmt + sizeof implied + REFSZ];
 
-	(void) sprintf(s2, fmt,
+	sprintf(s2, fmt,
 		prp->pr_scen->sc_flags & SCF_IMPLIED ? implied : "",
 		jnl_scenref(prp));
 	jnl_write(TET_JNL_SEQ_START, (char *) 0, s2,
@@ -659,7 +659,7 @@ struct proctab *prp;
 	static char fmt[] = "%sSequential End, %s";
 	char s2[sizeof fmt + sizeof implied + REFSZ];
 
-	(void) sprintf(s2, fmt,
+	sprintf(s2, fmt,
 		prp->pr_scen->sc_flags & SCF_IMPLIED ? implied : "",
 		jnl_scenref(prp));
 	jnl_write(TET_JNL_SEQ_END, (char *) 0, s2,
@@ -673,7 +673,7 @@ struct proctab *prp;
 	char *s1 = tet_i2a(prp->pr_scen->sc_count);
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_RPT_START, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
 
@@ -683,7 +683,7 @@ struct proctab *prp;
 	static char fmt[] = "Repeat End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_RPT_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -695,7 +695,7 @@ struct proctab *prp;
 	char *s1 = tet_l2a(prp->pr_scen->sc_seconds);
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_TLOOP_START, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
 
@@ -705,7 +705,7 @@ struct proctab *prp;
 	static char fmt[] = "Timed Loop End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_TLOOP_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -716,7 +716,7 @@ struct proctab *prp;
 	static char fmt[] = "Random Start, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_RND_START, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -727,7 +727,7 @@ struct proctab *prp;
 	static char fmt[] = "Random End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_RND_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -741,7 +741,7 @@ struct proctab *prp;
 	static char fmt[] = "Remote Start, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_rd_start(prp, TET_JNL_RMT_START, s2);
 }
 
@@ -751,7 +751,7 @@ struct proctab *prp;
 	static char fmt[] = "Remote End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_RMT_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -762,7 +762,7 @@ struct proctab *prp;
 	static char fmt[] = "Distributed Start, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_rd_start(prp, TET_JNL_DIST_START, s2);
 }
 
@@ -772,7 +772,7 @@ struct proctab *prp;
 	static char fmt[] = "Distributed End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_DIST_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -803,7 +803,7 @@ char *s2;
 	for (ip = ep->sc_sys; ip < ep->sc_sys + ep->sc_nsys; ip++) {
 		if (ip > ep->sc_sys)
 			*p++ = ',';
-		(void) sprintf(p, "%03d", *ip);
+		sprintf(p, "%03d", *ip);
 		p += strlen(p);
 	}
 
@@ -821,7 +821,7 @@ struct proctab *prp;
 	register struct scentab *ep = prp->pr_scen;
 	register char **vp;
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_VAR_START, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 	for (vp = ep->sc_vars; vp < ep->sc_vars + ep->sc_nvars; vp++)
@@ -834,7 +834,7 @@ struct proctab *prp;
 	static char fmt[] = "Variable End, %s";
 	char s2[sizeof fmt + REFSZ];
 
-	(void) sprintf(s2, fmt, jnl_scenref(prp));
+	sprintf(s2, fmt, jnl_scenref(prp));
 	jnl_write(TET_JNL_VAR_END, (char *) 0, s2,
 		prp->pr_jfp, prp->pr_jfname);
 }
@@ -858,7 +858,7 @@ struct proctab *prp;
 	char s1[LNUMSZ + sizeof tcc_version + 4];
 	static char s2[] = "TCM Start (auto-generated by TCC)";
 
-	(void) sprintf(s1, "%d %s 1", prp->pr_activity, tcc_version);
+	sprintf(s1, "%d %s 1", prp->pr_activity, tcc_version);
 	jnl_write(TET_JNL_TCM_START, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
 
@@ -885,7 +885,7 @@ char *s2;
 {
 	char s1[LNUMSZ + TIMESZ + 6];
 
-	(void) sprintf(s1, "%d 1 1 %s",
+	sprintf(s1, "%d 1 1 %s",
 		prp->pr_activity, jnl_time(time((time_t *) 0)));
 	jnl_write(id, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
@@ -896,7 +896,7 @@ struct proctab *prp;
 	char s1[LNUMSZ + TIMESZ + 4];
 	static char s2[] = "TP Start (auto-generated by TCC)";
 
-	(void) sprintf(s1, "%d 1 %s",
+	sprintf(s1, "%d 1 %s",
 		prp->pr_activity, jnl_time(time((time_t *) 0)));
 	jnl_write(TET_JNL_TP_START, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
@@ -912,13 +912,13 @@ int tpno, result;
 	static char s2p2[] = "(auto-generated by TCC)";
 	int needlen;
 
-	(void) sprintf(s1, "%d %d %d %s", prp->pr_activity, tpno, result,
+	sprintf(s1, "%d %d %d %s", prp->pr_activity, tpno, result,
 		jnl_time(time((time_t *) 0)));
 
 	s2p1 = tet_getresname(result, (int *) 0);
 	needlen = strlen(s2p1) + sizeof s2p2 + 1;
 	RBUFCHK(&s2, &s2len, needlen);
-	(void) sprintf(s2, "%s %s", s2p1, s2p2);
+	sprintf(s2, "%s %s", s2p1, s2p2);
 
 	jnl_write(TET_JNL_TP_RESULT, s1, s2, prp->pr_jfp, prp->pr_jfname);
 }
@@ -967,7 +967,7 @@ FILE *fp;
 		TET_MAX(s2max, 0), s2) < 0 || fflush(fp) < 0) {
 			error(errno, "write error on", fname);
 			s2max = (int) sizeof msg - len0 - len1 - 3;
-			(void) sprintf(msg, "%s|%.*s|%.*s", s0,
+			sprintf(msg, "%s|%.*s|%.*s", s0,
 				(int) sizeof msg - len0 - 3, s1,
 				TET_MAX(s2max, 0), s2);
 			error(0, "the journal line that cannot be written is:",
@@ -979,9 +979,9 @@ FILE *fp;
 		if (jnl_usable())
 			error(0, "the previous journal line has been truncated",
 				(char *) 0);
-		(void) fprintf(stderr, "%s: a journal line has been truncated - the complete line is:\n%s|%s|%s\n",
+		fprintf(stderr, "%s: a journal line has been truncated - the complete line is:\n%s|%s|%s\n",
 			tet_progname, s0, s1, s2);
-		(void) fflush(stderr);
+		fflush(stderr);
 	}
 }
 
@@ -1021,7 +1021,7 @@ FILE *fp;
 			while (p > s2 && isspace(*(p - 1)))
 				p--;
 			n = (p > s2) ? p - s2 : space;
-			(void) sprintf(msg, "%.*s", n, s2);
+			sprintf(msg, "%.*s", n, s2);
 			jnl_write(id, s1, msg, fp, fname);
 			s2 += n;
 			while (isspace(*s2))
@@ -1045,8 +1045,8 @@ int id;
 char *s1, *s2;
 {
 	if (tcc_Iflag) {
-		(void) fprintf(stderr, "tcc:%d|%s|%s\n", id, s1, s2);
-		(void) fflush(stderr);
+		fprintf(stderr, "tcc:%d|%s|%s\n", id, s1, s2);
+		fflush(stderr);
 	}
 }
 
@@ -1061,7 +1061,7 @@ time_t now;
 	struct tm *tp = localtime(&now);
 	static char buf[DATESZ + 1];
 
-	(void) sprintf(buf, "%4.4d%.2d%.2d",
+	sprintf(buf, "%4.4d%.2d%.2d",
 		tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday);
 
 	return(buf);
@@ -1078,7 +1078,7 @@ time_t now;
 	struct tm *tp = localtime(&now);
 	static char buf[TIMESZ + 1];
 
-	(void) sprintf(buf, "%.2d:%.2d:%.2d",
+	sprintf(buf, "%.2d:%.2d:%.2d",
 		tp->tm_hour, tp->tm_min, tp->tm_sec);
 
 	return(buf);
@@ -1147,7 +1147,7 @@ register struct proctab *prp;
 				error(errno, werrmsg, prp->pr_jfname);
 		if (fflush(prp->pr_jfp) < 0)
 			error(errno, werrmsg, prp->pr_jfname);
-		(void) fclose(child->pr_jfp);
+		fclose(child->pr_jfp);
 		child->pr_jfp = prp->pr_jfp;
 		if (UNLINK(child->pr_jfname) < 0)
 			error(errno, "can't unlink", child->pr_jfname);
@@ -1168,7 +1168,7 @@ struct proctab *prp;
 {
 	static char scenref[REFSZ];
 
-	(void) sprintf(scenref, tcc_scenref_fmt,
+	sprintf(scenref, tcc_scenref_fmt,
 		prp->pr_scen->sc_ref,
 		prp->pr_sys ? *prp->pr_sys : 0);
 
diff --git a/src/tet3/tcc/lock.c b/src/tet3/tcc/lock.c
index bb13fb73..8c4dd429 100644
--- a/src/tet3/tcc/lock.c
+++ b/src/tet3/tcc/lock.c
@@ -116,7 +116,7 @@ char *dir, lkname[];
 			err = errno ? errno : tet_tcerrno;
 			break;
 		}
-		(void) sprintf(msg, fmt, lktype);
+		sprintf(msg, fmt, lktype);
 		prperror(prp, *prp->pr_sys, err, msg, lkpath);
 		return(-1);
 	}
@@ -124,7 +124,7 @@ char *dir, lkname[];
 	TRACE4(tet_Ttcc, 4, "created %s lock %s on system %s",
 		lktype, lnp, tet_i2a(*prp->pr_sys));
 
-	(void) sprintf(lkname, "%.*s", lknamelen, lnp);
+	sprintf(lkname, "%.*s", lknamelen, lnp);
 	return(0);
 }
 
@@ -153,7 +153,7 @@ char *lkname;
 	/* remove the lock file */
 	errno = 0;
 	if (tcc_unlink(*prp->pr_sys, lkname) < 0) {
-		(void) sprintf(msg, fmt, lktype, "");
+		sprintf(msg, fmt, lktype, "");
 		prperror(prp, *prp->pr_sys, errno ? errno : tet_tcerrno,
 			msg, lkname);
 		rc = -1;
@@ -183,7 +183,7 @@ char *lkname;
 #endif
 			break;
 		default:
-			(void) sprintf(msg, fmt, lktype, " directory");
+			sprintf(msg, fmt, lktype, " directory");
 			prperror(prp, *prp->pr_sys, errno ? errno : tet_tcerrno,
 				msg, lkdir);
 			rc = -1;
diff --git a/src/tet3/tcc/proctab.c b/src/tet3/tcc/proctab.c
index 8464ae16..85a9a151 100644
--- a/src/tet3/tcc/proctab.c
+++ b/src/tet3/tcc/proctab.c
@@ -214,7 +214,7 @@ int state;
 	case PRS_WAIT:
 		return("WAIT");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
@@ -256,7 +256,7 @@ int state;
 	case TCS_END:
 		return("END");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
@@ -308,7 +308,7 @@ int state;
 	case PTS_SIGKILL:
 		return("SIGKILL");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
diff --git a/src/tet3/tcc/proctc.c b/src/tet3/tcc/proctc.c
index 576e7775..80161cd0 100644
--- a/src/tet3/tcc/proctc.c
+++ b/src/tet3/tcc/proctc.c
@@ -488,13 +488,13 @@ struct proctab *prp;
 		timestr = jnl_time(time((time_t *) 0));
 		ep = prp->pr_scen;
 #ifdef TET_LITE	/* -LITE-CUT-LINE- */
-		(void) printf("%s  %-7s %s\n", timestr, action, ep->sc_tcname);
+		printf("%s  %-7s %s\n", timestr, action, ep->sc_tcname);
 #else	/* -START-LITE-CUT- */
 		for (ip = prp->pr_sys; ip < prp->pr_sys + prp->pr_nsys; ip++)
-			(void) printf("%s  %-7s %s on system %03d\n",
+			printf("%s  %-7s %s on system %03d\n",
 				timestr, action, ep->sc_tcname, *ip);
 #endif /* TET_LITE */	/* -END-LITE-CUT- */
-		(void) fflush(stdout);
+		fflush(stdout);
 	}
 
 	/* start a new activity */
@@ -689,7 +689,7 @@ register struct proctab *prp;
 
 	/* unlock the execution directory */
 	if (prp->pr_execlock) {
-		(void) tcc_unlock(prp, prp->pr_flags & PRF_SHLOCK,
+		tcc_unlock(prp, prp->pr_flags & PRF_SHLOCK,
 			prp->pr_execlock);
 		TRACE2(tet_Tbuf, 6, "free pr_execlock = %s",
 			tet_i2x(prp->pr_execlock));
@@ -699,7 +699,7 @@ register struct proctab *prp;
 
 	/* unlock the source directory */
 	if (prp->pr_srclock) {
-		(void) tcc_unlock(prp, prp->pr_flags & PRF_SHLOCK,
+		tcc_unlock(prp, prp->pr_flags & PRF_SHLOCK,
 			prp->pr_srclock);
 		TRACE2(tet_Tbuf, 6, "free pr_srclock = %s",
 			tet_i2x(prp->pr_srclock));
@@ -1282,25 +1282,25 @@ register struct proctab *prp;
 	/* perform per-proctab journal end processing */
 #ifndef TET_LITE	/* -START-LITE-CUT- */
 	if (prp->pr_flags & PRF_JNL_CHILD) {
-		(void) run_child_proctabs(prp, tcs1_jnlend);
+		run_child_proctabs(prp, tcs1_jnlend);
 		jnl_consolidate(prp);
 		prp->pr_flags &= ~PRF_JNL_CHILD;
 	}
 	else
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
-		(void) tcs1_jnlend(prp);
+		tcs1_jnlend(prp);
 
 	/* remove the temporary directory if there is one */
-	(void) RUN_PROCTABS(prp, tcs1_rmtmpdir);
+	RUN_PROCTABS(prp, tcs1_rmtmpdir);
 
 	/* ensure that all locks are removed */
-	(void) RUN_PROCTABS(prp, tcs1_unlock);
+	RUN_PROCTABS(prp, tcs1_unlock);
 
 	/* free the tet_xres file names */
-	(void) RUN_PROCTABS(prp, tcs1_freetetxres);
+	RUN_PROCTABS(prp, tcs1_freetetxres);
 
 	/* free the execution directory names */
-	(void) RUN_PROCTABS(prp, tcs1_freetcedir);
+	RUN_PROCTABS(prp, tcs1_freetcedir);
 
 #ifdef TET_LITE	/* -LITE-CUT-LINE- */
 	ASSERT(prp->pr_child == (struct proctab *) 0);
@@ -1374,7 +1374,7 @@ struct proctab *prp;
 		tet_i2x(prp), prpflags(prp->pr_flags));
 
 	if (prp->pr_tmpdir) {
-		(void) tcc_rmtmpdir(prp, prp->pr_tmpdir);
+		tcc_rmtmpdir(prp, prp->pr_tmpdir);
 		TRACE2(tet_Tbuf, 6, "free pr_tmpdir = %s",
 			tet_i2x(prp->pr_tmpdir));
 		free(prp->pr_tmpdir);
diff --git a/src/tet3/tcc/proctcd.c b/src/tet3/tcc/proctcd.c
index 47b90dfb..c152f7a5 100644
--- a/src/tet3/tcc/proctcd.c
+++ b/src/tet3/tcc/proctcd.c
@@ -106,7 +106,7 @@ register struct proctab *prp;
 		prperror(prp, -1, tet_xderrno,
 			"can't send system list to XRESD", (char *) 0);
 		rm_snid_xrid(prp);
-		(void) UNLINK(fname);
+		UNLINK(fname);
 		return(-1);
 	}
 
@@ -240,7 +240,7 @@ void unlink_xres(prp)
 struct proctab *prp;
 {
 	if (prp->pr_xfname) {
-		(void) UNLINK(prp->pr_xfname);
+		UNLINK(prp->pr_xfname);
 		TRACE2(tet_Tbuf, 6, "free prp->pr_xfname = %s",
 			tet_i2x(prp->pr_xfname));
 		free(prp->pr_xfname);
diff --git a/src/tet3/tcc/rescode.c b/src/tet3/tcc/rescode.c
index f0ebce72..d75f5d14 100644
--- a/src/tet3/tcc/rescode.c
+++ b/src/tet3/tcc/rescode.c
@@ -148,7 +148,7 @@ static void irc2()
 		fatal(errno, "can't open combined rescode file", rcftmp);
 
 	/* write out the default results codes */
-	(void) fprintf(fp, "# master results code file\n\n");
+	fprintf(fp, "# master results code file\n\n");
 	for (rtp = tet_restab; rtp < tet_restab + tet_nrestab; rtp++)
 		if (fprintf(fp, "%d \"%s\" %s\n", rtp->rt_code, rtp->rt_name,
 			rtp->rt_abrt ? "Abort" : "Continue") < 0)
@@ -192,7 +192,7 @@ static void rescode_distribute()
 		*(lines + nlines++) = rstrstore(line);
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 
 	/* distribute the lines to each remote system */
 	for (sysid = 1, sysmax = symax(); sysid <= sysmax; sysid++)
@@ -241,7 +241,7 @@ int nlines;
 
 	/* open the remote file */
 	if ((fid = tet_tcfopen(sp->sy_sysid, cfname)) < 0) {
-		(void) sprintf(msg, fmt, sizeof msg - sizeof fmt, cfname);
+		sprintf(msg, fmt, sizeof msg - sizeof fmt, cfname);
 		if (!IS_ER_ERRNO(tet_tcerrno))
 			errno = 0;
 		error(errno ? errno : tet_tcerrno, msg, tet_i2a(sp->sy_sysid));
@@ -282,14 +282,14 @@ void rescode_cleanup()
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 
 	/* remove the local tmp result code file */
-	(void) UNLINK(rcftmp);
+	UNLINK(rcftmp);
 
 #ifndef TET_LITE	/* -START-LITE-CUT- */
 	/* remove all the remote tmp rescode files */
 	for (sysid = 1, sysmax = symax(); sysid <= sysmax; sysid++)
 		if ((sp = syfind(sysid)) != (struct systab *) 0 &&
 			sp->sy_rcfname)
-				(void) tet_tcunlink(sysid, sp->sy_rcfname);
+				tet_tcunlink(sysid, sp->sy_rcfname);
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 
 }
diff --git a/src/tet3/tcc/resdir.c b/src/tet3/tcc/resdir.c
index 86232bd8..869b894c 100644
--- a/src/tet3/tcc/resdir.c
+++ b/src/tet3/tcc/resdir.c
@@ -143,7 +143,7 @@ char *resroot;
 		while ((dp = READDIR(dirp)) != (struct dirent *) 0)
 			if ((thisval = atoi(dp->d_name)) > maxval)
 				maxval = thisval;
-		(void) CLOSEDIR(dirp);
+		CLOSEDIR(dirp);
 	}
 
 	/*
@@ -156,7 +156,7 @@ char *resroot;
 
 	/* construct the name of the subdirectory for the selected
 		modes of operation */
-	(void) sprintf(buf, "%04d%s", maxval, resdirsuffix());
+	sprintf(buf, "%04d%s", maxval, resdirsuffix());
 
 	return(buf);
 }
diff --git a/src/tet3/tcc/rrproc.c b/src/tet3/tcc/rrproc.c
index 3d3ea4f9..bf0b4b0e 100644
--- a/src/tet3/tcc/rrproc.c
+++ b/src/tet3/tcc/rrproc.c
@@ -162,7 +162,7 @@ char *codelist, *old_journal_file;
 	** and split the codelist into fields
 	*/
 	RBUFCHK((char **) &argv, &largv, n * sizeof *argv);
-	(void) sprintf(buf, "%.*s", (int) sizeof buf - 1, codelist);
+	sprintf(buf, "%.*s", (int) sizeof buf - 1, codelist);
 	argc = split(buf, argv, n, ',');
 
 	/*
@@ -223,7 +223,7 @@ char *codelist, *old_journal_file;
 		(jlp = rrp_getline(buf)) == (struct jline *) 0 ||
 		jlp->jl_id != TET_JNL_TCC_START
 	) {
-		(void) fprintf(stderr, "TCC: old journal file does not start with a TCC Start line: %s\n",
+		fprintf(stderr, "TCC: old journal file does not start with a TCC Start line: %s\n",
 			jfname);
 		tcc_exit(1);
 	}
@@ -270,7 +270,7 @@ char *codelist, *old_journal_file;
 		case TET_JNL_TP_START:
 		case TET_JNL_TP_RESULT:
 			if ((tcc_modes & TCC_RESUME) == 0 || !resume_scen) {
-				(void) fprintf(stderr, "TCC: found %s outside the scope of a Test Case at line %ld in old journal file %s\n",
+				fprintf(stderr, "TCC: found %s outside the scope of a Test Case at line %ld in old journal file %s\n",
 					prjnlid(jlp->jl_id), jlp->jl_lineno,
 					jfname);
 				tcc_exit(1);
@@ -299,25 +299,25 @@ char *codelist, *old_journal_file;
 		case TET_JNL_RMT_END:
 		case TET_JNL_DIST_END:
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
-			(void) rrp_findscen(jlp);
+			rrp_findscen(jlp);
 			break;
 		}
 	}
 
-	(void) fclose(jfp);
+	fclose(jfp);
 
 	/*
 	** see if any test cases have been selected (in RERUN mode) or if
 	** a resume point has been found (in RESUME mode)
 	*/
 	if ((tcc_modes & TCC_RERUN) && !sel) {
-		(void) printf("TCC: rerun codelist does not select any test cases to rerun\n");
-		(void) fflush(stdout);
+		printf("TCC: rerun codelist does not select any test cases to rerun\n");
+		fflush(stdout);
 		tcc_exit(0);
 	}
 	if ((tcc_modes & TCC_RESUME) && !resume_scen) {
-		(void) printf("TCC: resume codelist does not identify a resume point in the scenario\n");
-		(void) fflush(stdout);
+		printf("TCC: resume codelist does not identify a resume point in the scenario\n");
+		fflush(stdout);
 		tcc_exit(0);
 	}
 
@@ -353,7 +353,7 @@ struct jline *jlp;
 
 	/* ensure that the tcc version number matches our version number */
 	if (strcmp(jlp->jl_flds2[0], tcc_version)) {
-		(void) fprintf(stderr, "TCC version %s: old journal file was generated by a different version of tcc (%s)\n",
+		fprintf(stderr, "TCC version %s: old journal file was generated by a different version of tcc (%s)\n",
 			tcc_version, jlp->jl_flds2[0]);
 		tcc_exit(1);
 	}
@@ -392,7 +392,7 @@ struct jline *jlp;
 			break;
 		case 'm':
 			if (tcc_modes & TCC_RESUME) {
-				(void) fprintf(stderr, "TCC: can't RESUME using an old journal file which has been generated by tcc in RESUME mode\n");
+				fprintf(stderr, "TCC: can't RESUME using an old journal file which has been generated by tcc in RESUME mode\n");
 				tcc_exit(1);
 			}
 			break;
@@ -409,7 +409,7 @@ struct jline *jlp;
 				badynopt(c);
 			break;
 		case '?':
-			(void) fprintf(stderr, "TCC: TCC Start line in old journal file contains an invalid or incomplete command-line option\n");
+			fprintf(stderr, "TCC: TCC Start line in old journal file contains an invalid or incomplete command-line option\n");
 			tcc_exit(1);
 			break;
 		}
@@ -422,7 +422,7 @@ struct jline *jlp;
 		(tcc_modes & TCC_RESUME) &&
 		(tcc_modes & (TCC_BUILD | TCC_EXEC | TCC_CLEAN)) != modes
 	) {
-		(void) fprintf(stderr, "TCC: set of operation modes in old journal file (%s) does not match the set selected for this run (%s)\n",
+		fprintf(stderr, "TCC: set of operation modes in old journal file (%s) does not match the set selected for this run (%s)\n",
 			prtccmode(modes),
 			prtccmode(tcc_modes & (TCC_BUILD | TCC_EXEC | TCC_CLEAN)));
 		tcc_exit(1);
@@ -476,7 +476,7 @@ int *argcp;
 		if (!strncmp(p1, key, sizeof key - 1))
 			break;
 	if (!*p1) {
-		(void) fprintf(stderr, "TCC: can't find tcc command in TCC Start line in old journal file\n");
+		fprintf(stderr, "TCC: can't find tcc command in TCC Start line in old journal file\n");
 		tcc_exit(1);
 	}
 
@@ -545,7 +545,7 @@ int *argcp;
 static void badynopt(c)
 int c;
 {
-	(void) fprintf(stderr, "TCC: TCC Start line in old journal file contains a bad format -%c option\n", c);
+	fprintf(stderr, "TCC: TCC Start line in old journal file contains a bad format -%c option\n", c);
 	tcc_exit(1);
 }
 
@@ -563,7 +563,7 @@ struct jline *jlp;
 
 	/* find the scenario element corresponding to the scenario reference */
 	if ((ep = rrp_fs2(sctree->sc_child, jlp->jl_ref)) == (struct scentab *) 0) {
-		(void) fprintf(stderr, "TCC: the specified scenario does not contain an element which corresponds to reference %ld-%d at line %ld in old journal file %s\n",
+		fprintf(stderr, "TCC: the specified scenario does not contain an element which corresponds to reference %ld-%d at line %ld in old journal file %s\n",
 			jlp->jl_ref, jlp->jl_sys, jlp->jl_lineno, jfname);
 		tcc_exit(1);
 	}
@@ -647,9 +647,9 @@ struct jline *jlp;
 				directive = prscdir(ep->sc_directive);
 		else
 			directive = "";
-		(void) fprintf(stderr, "TCC: %s line %ld in old journal file %s\n",
+		fprintf(stderr, "TCC: %s line %ld in old journal file %s\n",
 			prjnlid(jlp->jl_id), jlp->jl_lineno, jfname);
-		(void) fprintf(stderr, "does not match %s%s%s element at line %d in scenario file %s\n",
+		fprintf(stderr, "does not match %s%s%s element at line %d in scenario file %s\n",
 			directive, (ep->sc_type == SC_DIRECTIVE) ? " " : "",
 			prsctype(ep->sc_type), ep->sc_lineno, ep->sc_fname);
 		tcc_exit(1);
@@ -712,10 +712,10 @@ struct jline *jlp;
 	ASSERT(is_testcase_start_id);
 
 	if (strcmp(ep->sc_tcname, jlp->jl_flds2[1])) {
-		(void) fprintf(stderr, "TCC: the test case name (%s) on %s line %ld in old journal file %s\n",
+		fprintf(stderr, "TCC: the test case name (%s) on %s line %ld in old journal file %s\n",
 			jlp->jl_flds2[1], prjnlid(jlp->jl_id),
 			jlp->jl_lineno, jfname);
-		(void) fprintf(stderr, "does not match the test case name (%s) at line %d of scenario file %s\n",
+		fprintf(stderr, "does not match the test case name (%s) at line %d of scenario file %s\n",
 			ep->sc_tcname, ep->sc_lineno, ep->sc_fname);
 		tcc_exit(1);
 	}
@@ -792,9 +792,9 @@ int startid;
 		case TET_JNL_TC_END:
 		case TET_JNL_CLEAN_END:
 			if (endid != jlp->jl_id) {
-				(void) fprintf(stderr, "TCC: expected %s at line %ld in old journal file %s\n",
+				fprintf(stderr, "TCC: expected %s at line %ld in old journal file %s\n",
 					prjnlid(endid), jlp->jl_lineno, jfname);
-				(void) fprintf(stderr,
+				fprintf(stderr,
 					"instead, found %s line\n",
 					prjnlid(jlp->jl_id));
 				tcc_exit(1);
@@ -808,7 +808,7 @@ int startid;
 		case TET_JNL_IC_END:
 		case TET_JNL_TP_START:
 		case TET_JNL_TP_RESULT:
-			(void) fprintf(stderr, "TCC: found %s outside the scope of an IC at line %ld in old journal file %s\n",
+			fprintf(stderr, "TCC: found %s outside the scope of an IC at line %ld in old journal file %s\n",
 				prjnlid(jlp->jl_id), jlp->jl_lineno, jfname);
 			tcc_exit(1);
 			break;
@@ -959,7 +959,7 @@ int mode;
 			done = 1;
 			break;
 		case TET_JNL_TP_RESULT:
-			(void) fprintf(stderr, "TCC: found %s outside the scope of a TP at line %ld in old journal file %s\n",
+			fprintf(stderr, "TCC: found %s outside the scope of a TP at line %ld in old journal file %s\n",
 				prjnlid(jlp->jl_id), jlp->jl_lineno, jfname);
 			tcc_exit(1);
 			break;
@@ -982,7 +982,7 @@ int mode;
 			p = tet_i2a(icno);
 			needlen = len + strlen(p) + 1;
 			RBUFCHK(&resume_iclist, &tmplen, needlen);
-			(void) sprintf(resume_iclist + len - 1, ",%s", p);
+			sprintf(resume_iclist + len - 1, ",%s", p);
 		}
 		return(sel);
 	}
@@ -1004,7 +1004,7 @@ int mode;
 		resume_mode = mode;
 		if (mode == TCC_EXEC) {
 			ASSERT(resume_iclist == (char *) 0);
-			(void) sprintf(buf, "%d", icno);
+			sprintf(buf, "%d", icno);
 			resume_iclist = rstrstore(buf);
 			TRACE2(tet_Ttcc, 6, "\tresume at IC %s",
 				resume_iclist);
@@ -1165,7 +1165,7 @@ char *buf;
 
 		/* split the line into 3 |-separated fields */
 		if (jnlproc_split(line, flds, buf) < 0 || !isdigit(*flds[0])) {
-			(void) sprintf(line, fmt1, lcount);
+			sprintf(line, fmt1, lcount);
 			error(0, line, jfname);
 			continue;
 		}
@@ -1217,9 +1217,9 @@ char *buf;
 
 		/* check the number of subfields in the 2nd field */
 		if (expflds != nflds2) {
-			(void) sprintf(line, fmt2, expflds);
+			sprintf(line, fmt2, expflds);
 			error(0, line, tet_i2a(nflds2));
-			(void) sprintf(line, fmt1, lcount);
+			sprintf(line, fmt1, lcount);
 			error(0, line, jfname);
 			continue;
 		}
@@ -1238,7 +1238,7 @@ char *buf;
 		case TET_JNL_DIST_START:
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 			if (!isdigit(*jline.jl_flds2[0])) {
-				(void) sprintf(line, fmt1, lcount);
+				sprintf(line, fmt1, lcount);
 				error(0, line, jfname);
 				continue;
 			}
@@ -1253,7 +1253,7 @@ char *buf;
 					*jline.jl_flds2[1] == '@'
 				)
 			) {
-				(void) sprintf(line, fmt1, lcount);
+				sprintf(line, fmt1, lcount);
 				error(0, line, jfname);
 				continue;
 			}
@@ -1268,7 +1268,7 @@ char *buf;
 					*jline.jl_flds2[1] == '-'
 				)
 			) {
-				(void) sprintf(line, fmt1, lcount);
+				sprintf(line, fmt1, lcount);
 				error(0, line, jfname);
 				continue;
 			}
@@ -1278,7 +1278,7 @@ char *buf;
 				!isdigit(*jline.jl_flds2[0]) ||
 				!isdigit(*jline.jl_flds2[1])
 			) {
-				(void) sprintf(line, fmt1, lcount);
+				sprintf(line, fmt1, lcount);
 				error(0, line, jfname);
 				continue;
 			}
@@ -1291,7 +1291,7 @@ char *buf;
 				!isdigit(*jline.jl_flds2[1]) ||
 				!isdigit(*jline.jl_flds2[2])
 			) {
-				(void) sprintf(line, fmt1, lcount);
+				sprintf(line, fmt1, lcount);
 				error(0, line, jfname);
 				continue;
 			}
@@ -1529,7 +1529,7 @@ int icno;
 		p = tet_i2a(icno);
 		needlen = strlen(ep->sc_exiclist) + strlen(p) + 2;
 		RBUFCHK(&iclist, &len, needlen);
-		(void) sprintf(iclist, "%s,%s", ep->sc_exiclist, p);
+		sprintf(iclist, "%s,%s", ep->sc_exiclist, p);
 		exiclist_set(ep, iclist);
 	}
 
@@ -1790,7 +1790,7 @@ int id;
 	case TET_JNL_TCC_END:
 		return("TCC End");
 	default:
-		(void) sprintf(msg, "%s%d", text, id);
+		sprintf(msg, "%s%d", text, id);
 		return(msg);
 	}
 }
diff --git a/src/tet3/tcc/scen1.c b/src/tet3/tcc/scen1.c
index 8abba13b..13ac318c 100644
--- a/src/tet3/tcc/scen1.c
+++ b/src/tet3/tcc/scen1.c
@@ -206,7 +206,7 @@ char *fname;
 	ifstp = ifstack;
 	while (ifstack) {
 		if (ifstack->if_next && ifstack->if_fp)
-			(void) fclose(ifstack->if_fp);
+			fclose(ifstack->if_fp);
 		ifsfree(ifspop());
 	}
 
@@ -243,7 +243,7 @@ static int find1scen()
 			/* start of new scenario */
 			if (skipstart) {
 				n = ifstp->if_lcount - skipstart;
-				(void) sprintf(msg, fmt, n, n == 1 ? "" : "s");
+				sprintf(msg, fmt, n, n == 1 ? "" : "s");
 				scenermsg(msg, (char *) 0, ifstp->if_lcount,
 					ifstp->if_fname);
 			}
@@ -470,7 +470,7 @@ int type, flags, lineno;
 		lsceninfo = 0;
 		RBUFCHK(&ep->sc_sceninfo, &lsceninfo,
 			(int) strlen(element) + 3);
-		(void) sprintf(ep->sc_sceninfo, "\"%s\"", element);
+		sprintf(ep->sc_sceninfo, "\"%s\"", element);
 		break;
 	case SC_TESTCASE:
 		tcname = element;
@@ -574,7 +574,7 @@ int lineno;
 	for (dirp = dirs; dirp < &dirs[ndirs]; dirp++) {
 		/* count the number of comma-separated arguments
 			associated with this directive */
-		(void) strcpy(buf, *dirp);
+		strcpy(buf, *dirp);
 		args[0] = "";
 		nargs = split(buf, args, MAXARGS, ',') - 1;
 
@@ -1035,7 +1035,7 @@ int currline;
 	}
 
 	/* finally, close the file and return (but don't free fname!) */
-	(void) fclose(fp);
+	fclose(fp);
 	TRACE1(tet_Tscen, 4, "includefile(): return");
 }
 
@@ -1188,7 +1188,7 @@ static char *getline_tcc()
 	** if there is one
 	*/
 	if ((lcp = lcpop()) != (struct lcache *) 0) {
-		(void) strcpy(buf, lcp->lc_line);
+		strcpy(buf, lcp->lc_line);
 		lcfree(lcp);
 		TRACE2(tet_Tscen, 10, "getline_tcc(): line = <%s>", firstpart(buf));
 		return(buf);
@@ -1224,7 +1224,7 @@ static char *getline_tcc()
 					"getline_tcc(): encountered EOF on %s",
 					ifstp->if_fname);
 			if (ifstp->if_next) {
-				(void) fclose(ifstp->if_fp);
+				fclose(ifstp->if_fp);
 				ifsfree(ifspop());
 				continue;
 			}
@@ -1525,7 +1525,7 @@ char *s;
 	static char dots[] = " ...";
 	static char buf[PLEN + sizeof dots];
 
-	(void) sprintf(buf, "%.*s%s", PLEN, s,
+	sprintf(buf, "%.*s%s", PLEN, s,
 		(int) strlen(s) > PLEN ? dots : "");
 
 	return(buf);
diff --git a/src/tet3/tcc/scen2.c b/src/tet3/tcc/scen2.c
index 10645441..09150cca 100644
--- a/src/tet3/tcc/scen2.c
+++ b/src/tet3/tcc/scen2.c
@@ -270,7 +270,7 @@ int proc2sclist()
 			continue;
 		TRACE3(tet_Tscen, 4, "tloop check loop TOP: descend tree below scenario %s at %s",
 			ep->sc_scenario, tet_i2x(ep));
-		(void) check_timed_loops(ep->sc_child);
+		check_timed_loops(ep->sc_child);
 	}
 	if (scenerrors)
 		return(0);
@@ -517,7 +517,7 @@ char *fname;
 	static char fmt[] = "found unmatched %.20s directive";
 	char msg[sizeof fmt + 20];
 
-	(void) sprintf(msg, fmt, prscdir(directive));
+	sprintf(msg, fmt, prscdir(directive));
 	scenerror(msg, (char *) 0, lineno, fname);
 }
 
@@ -1109,7 +1109,7 @@ register struct scentab *ep1;
 		s1 = prsctype(ep1->sc_type);
 		s2 = "element";
 	}
-	(void) sprintf(msg, fmt, s1, s2);
+	sprintf(msg, fmt, s1, s2);
 	TRACESCELEM(tet_Tscen, 6, ep1, msg);
 #endif
 
@@ -1294,7 +1294,7 @@ struct scentab **sctp;
 		if (edp >= dp->dt_enc + dp->dt_nenc) {
 			scenermsg(prscdir(q->sc_directive), "directive",
 				q->sc_lineno, q->sc_fname);
-			(void) sprintf(msg, fmt, prscdir(ep->sc_directive));
+			sprintf(msg, fmt, prscdir(ep->sc_directive));
 			scenerror(msg, "directive", ep->sc_lineno,
 				ep->sc_fname);
 		}
@@ -1308,7 +1308,7 @@ struct scentab **sctp;
 
 void check_empty_timed_loops()
 {
-	(void) check_timed_loops(sctree->sc_child);
+	check_timed_loops(sctree->sc_child);
 	if (scenerrors)
 		scengiveup();
 }
diff --git a/src/tet3/tcc/scenario.c b/src/tet3/tcc/scenario.c
index 80dab87a..d5286f76 100644
--- a/src/tet3/tcc/scenario.c
+++ b/src/tet3/tcc/scenario.c
@@ -155,7 +155,7 @@ char *scenario, *sopt, *cwd;
 		else {
 			if (proc1scfile(fp, scenario_file) < 0)
 				tcc_exit(1);
-			(void) fclose(fp);
+			fclose(fp);
 		}
 		if (scenerrors)
 			scengiveup();
diff --git a/src/tet3/tcc/scenpp.c b/src/tet3/tcc/scenpp.c
index e98f2727..8cd67813 100644
--- a/src/tet3/tcc/scenpp.c
+++ b/src/tet3/tcc/scenpp.c
@@ -205,7 +205,7 @@ char **argv;
 				error(errno, "can't open", *argv);
 			else {
 				rc = proc1scfile(ifp, *argv);
-				(void) fclose(ifp);
+				fclose(ifp);
 				if (rc < 0)
 					tcc_exit(1);
 			}
@@ -242,13 +242,13 @@ char **argv;
 		ASSERT(ep->sc_magic == SC_MAGIC);
 		ASSERT(ep->sc_type == SC_SCENARIO);
 		printloc(ep->sc_lineno, ep->sc_fname, 0);
-		(void) fprintf(ofp, "scenario%s(\"%s\")\n{\n",
+		fprintf(ofp, "scenario%s(\"%s\")\n{\n",
 			printaddr(ep), ep->sc_scenario);
 		lastlineno += 2;
 		printsctree(ep->sc_child, 1);
-		(void) fprintf(ofp, "}\n\n");
+		fprintf(ofp, "}\n\n");
 		lastlineno += 2;
-		(void) fflush(ofp);
+		fflush(ofp);
 	}
 
 	tcc_exit(0);
@@ -274,7 +274,7 @@ static void badusage()
 	char msg[1024];
 	register char *p = msg;
 
-	(void) sprintf(p, "\t%s", tet_progname);
+	sprintf(p, "\t%s", tet_progname);
 	len = strlen(p);
 	p += len;
 	pos = len + 7;
@@ -286,7 +286,7 @@ static void badusage()
 		}
 		else
 			sep = " ";
-		(void) sprintf(p, "%s[%s]", sep, options[n]);
+		sprintf(p, "%s[%s]", sep, options[n]);
 		len = strlen(p);
 		p += len;
 		pos += len;
@@ -307,19 +307,19 @@ int indent;
 			break;
 		case SC_TESTCASE:
 			printloc(ep->sc_lineno, ep->sc_fname, indent);
-			(void) fprintf(ofp,
+			fprintf(ofp,
 				"testcase%s(\"%s\", \"%s\");\n",
 				printaddr(ep), ep->sc_tcname,
 				ep->sc_exiclist ? ep->sc_exiclist : "all");
 			break;
 		case SC_SCENINFO:
 			printloc(ep->sc_lineno, ep->sc_fname, indent);
-			(void) fprintf(ofp, "sceninfo%s(%s);\n",
+			fprintf(ofp, "sceninfo%s(%s);\n",
 				printaddr(ep), ep->sc_sceninfo);
 			break;
 		case SC_SCEN_NAME:
 			printloc(ep->sc_lineno, ep->sc_fname, indent);
-			(void) fprintf(ofp, "call%s(\"%s\");\n",
+			fprintf(ofp, "call%s(\"%s\");\n",
 				printaddr(ep), ep->sc_scen_name);
 			break;
 		default:
@@ -376,16 +376,16 @@ int indent;
 #endif
 	case SD_VARIABLE:
 		doindent(indent);
-		(void) fprintf(ofp, "{\n");
+		fprintf(ofp, "{\n");
 		lastlineno++;
 		for (vp = ep->sc_vars; vp < ep->sc_vars + ep->sc_nvars; vp++) {
 			printloc(ep->sc_lineno, ep->sc_fname, indent + 1);
-			(void) fprintf(ofp, "variable%s %s\n",
+			fprintf(ofp, "variable%s %s\n",
 				printaddr(ep), *vp);
 		}
 		printsctree(ep->sc_child, indent + 1);
 		doindent(indent);
-		(void) fprintf(ofp, "}\n");
+		fprintf(ofp, "}\n");
 		lastlineno++;
 		return;
 	default:
@@ -396,27 +396,27 @@ int indent;
 	}
 
 	printloc(ep->sc_lineno, ep->sc_fname, indent);
-	(void) fprintf(ofp, "%s%s(", func, printaddr(ep));
+	fprintf(ofp, "%s%s(", func, printaddr(ep));
 	switch (ep->sc_directive) {
 	case SD_TIMED_LOOP:
-		(void) fprintf(ofp, "%ld", ep->sc_seconds);
+		fprintf(ofp, "%ld", ep->sc_seconds);
 		break;
 	default:
 		for (ap = argv; ap < argv + argc; ap++) {
 			if (ap > argv)
-				(void) fprintf(ofp, ", ");
-			(void) fprintf(ofp, "%d", *ap);
+				fprintf(ofp, ", ");
+			fprintf(ofp, "%d", *ap);
 		}
 		break;
 	}
-	(void) fprintf(ofp, ")\n");
+	fprintf(ofp, ")\n");
 
 	doindent(indent);
-	(void) fprintf(ofp, "{\n");
+	fprintf(ofp, "{\n");
 	lastlineno++;
 	printsctree(ep->sc_child, indent + 1);
 	doindent(indent);
-	(void) fprintf(ofp, "}\n");
+	fprintf(ofp, "}\n");
 	lastlineno++;
 }
 
@@ -437,7 +437,7 @@ char *thisfname;
 			doit = 1;
 		}
 		if (doit)
-			(void) fprintf(ofp, "# %d \"%s\"\n",
+			fprintf(ofp, "# %d \"%s\"\n",
 				thislineno, thisfname);
 	}
 
@@ -450,10 +450,10 @@ int indent;
 	register int space;
 
 	for (space = indent * tabwidth; space > 7; space -= 8)
-		(void) putc('\t', ofp);
+		putc('\t', ofp);
 
 	while (space-- > 0)
-		(void) putc(' ', ofp);
+		putc(' ', ofp);
 }
 
 static char *printaddr(ep)
@@ -465,13 +465,13 @@ struct scentab *ep;
 	buf[0] = '\0';
 
 	if (printscrefs) {
-		(void) sprintf(p, "-%ld", ep->sc_ref);
+		sprintf(p, "-%ld", ep->sc_ref);
 		p += strlen(p);
 	}
 
 #ifndef NOTRACE
 	if (tet_Tscen) {
-		(void) sprintf(p, "@%#lx", (long) ep);
+		sprintf(p, "@%#lx", (long) ep);
 		p += strlen(p);
 	}
 #endif
diff --git a/src/tet3/tcc/scentab.c b/src/tet3/tcc/scentab.c
index b5b5de02..135b7d65 100644
--- a/src/tet3/tcc/scentab.c
+++ b/src/tet3/tcc/scentab.c
@@ -412,7 +412,7 @@ int type;
 	case SC_SCEN_NAME:
 		return("REFERENCED SCENARIO NAME");
 	default:
-		(void) sprintf(msg, fmt, type);
+		sprintf(msg, fmt, type);
 		return(msg);
 	}
 }
@@ -459,7 +459,7 @@ int directive;
 		if (dp && dp->dt_name)
 			return(dp->dt_name);
 		else {
-			(void) sprintf(msg, fmt, directive);
+			sprintf(msg, fmt, directive);
 			return(msg);
 		}
 	}
diff --git a/src/tet3/tcc/sigtrap.c b/src/tet3/tcc/sigtrap.c
index 552eef10..a6ba1aa6 100644
--- a/src/tet3/tcc/sigtrap.c
+++ b/src/tet3/tcc/sigtrap.c
@@ -106,7 +106,7 @@ int sig;
 
 
 	if (jnl_usable())
-		(void) fprintf(stderr, "%s %d\n", text, sig);
+		fprintf(stderr, "%s %d\n", text, sig);
 
 	fatal(0, text, tet_i2a(sig));
 }
@@ -118,10 +118,10 @@ int sig;
 void execsigtrap()
 {
 	exec_block_signals();
-	(void) install_handler(SIGHUP, engine_sigterm);
-	(void) install_handler(SIGQUIT, engine_abort);
-	(void) install_handler(SIGPIPE, engine_sigterm);
-	(void) install_handler(SIGTERM, engine_sigterm);
+	install_handler(SIGHUP, engine_sigterm);
+	install_handler(SIGQUIT, engine_abort);
+	install_handler(SIGPIPE, engine_sigterm);
+	install_handler(SIGTERM, engine_sigterm);
 }
 
 /*
@@ -151,11 +151,11 @@ int how;
 {
 	sigset_t mask;
 
-	(void) sigemptyset(&mask);
-	(void) sigaddset(&mask, SIGHUP);
-	(void) sigaddset(&mask, SIGQUIT);
-	(void) sigaddset(&mask, SIGPIPE);
-	(void) sigaddset(&mask, SIGTERM);
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGHUP);
+	sigaddset(&mask, SIGQUIT);
+	sigaddset(&mask, SIGPIPE);
+	sigaddset(&mask, SIGTERM);
 
 	if (sigprocmask(how, &mask, (sigset_t *) 0) < 0)
 		fatal(errno, "sigprocmask() failed: how =", tet_i2a(how));
@@ -191,8 +191,8 @@ int sig;
 	register struct proctab *prp;
 
 
-	(void) fprintf(stderr, "TCC: user abort called\n");
-	(void) fflush(stderr);
+	fprintf(stderr, "TCC: user abort called\n");
+	fflush(stderr);
 
 	/*
 	** this flag tells the execution engine not to start processing
@@ -212,7 +212,7 @@ int sig;
 	** test cases have terminated and any save files and journal
 	** processing has completed
 	*/
-	(void) engine_tcinterrupt(sig);
+	engine_tcinterrupt(sig);
 
 }
 
@@ -247,7 +247,7 @@ int sig;
 			prp->pr_modes |= TCC_ABORT;
 			if (prp->pr_state == PRS_WAIT) {
 				count++;
-				(void) RUN_PROCTABS(prp, eng1_tcinterrupt);
+				RUN_PROCTABS(prp, eng1_tcinterrupt);
 				prp->pr_flags |= PRF_ATTENTION;
 			}
 		}
@@ -316,7 +316,7 @@ void engine_shutdown()
 	for (prp = runq; prp; prp = prp->pr_rqforw)
 		if (prp->pr_scen->sc_type == SC_TESTCASE) {
 			count++;
-			(void) RUN_PROCTABS(prp, quick_killtc);
+			RUN_PROCTABS(prp, quick_killtc);
 		}
 
 	/* give the tools a chance to terminate */
@@ -355,7 +355,7 @@ struct proctab *prp;
 		tet_i2x(prp), prtoolstate(prp->pr_toolstate));
 
 	if (prp->pr_toolstate == PTS_RUNNING) {
-		(void) tcc_kill(*prp->pr_sys, prp->pr_remid, SIGTERM);
+		tcc_kill(*prp->pr_sys, prp->pr_remid, SIGTERM);
 		prp->pr_toolstate = PTS_EXITED;
 	}
 
@@ -381,7 +381,7 @@ void (*func) PROTOLIST((int));
 	if ((rc = sa.sa_handler) != SIG_IGN) {
 		sa.sa_handler = func;
 		sa.sa_flags = 0;
-		(void) sigemptyset(&sa.sa_mask); 
+		sigemptyset(&sa.sa_mask);
 		if (sigaction(sig, &sa, (struct sigaction *) 0) < 0)
 			fatal(errno, "can't install handler for signal",
 				tet_i2a(sig));
@@ -422,14 +422,14 @@ void (*func) PROTOLIST((int));
 	/* ignore the signal */
 	sa.sa_handler = SIG_IGN;
 	sa.sa_flags = 0;
-	(void) sigemptyset(&sa.sa_mask); 
+	sigemptyset(&sa.sa_mask);
 	if (sigaction(sig, &sa, (struct sigaction *) 0) < 0)
 		fatal(errno, "sigaction(SIG_IGN) failed for signal",
 			tet_i2a(sig));
 
 	/* unblock the signal */
-	(void) sigemptyset(&sa.sa_mask);
-	(void) sigaddset(&sa.sa_mask, sig);
+	sigemptyset(&sa.sa_mask);
+	sigaddset(&sa.sa_mask, sig);
 	if (sigprocmask(SIG_UNBLOCK, &sa.sa_mask, (sigset_t *) 0) < 0)
 		fatal(errno, "sigprocmask(SIG_UNBLOCK) failed for signal",
 			tet_i2a(sig));
@@ -438,7 +438,7 @@ void (*func) PROTOLIST((int));
 	if (func != SIG_IGN) {
 		sa.sa_handler = func;
 		sa.sa_flags = 0;
-		(void) sigemptyset(&sa.sa_mask); 
+		sigemptyset(&sa.sa_mask);
 		if (sigaction(sig, &sa, (struct sigaction *) 0) < 0)
 			fatal(errno, "sigaction() failed for signal",
 				tet_i2a(sig));
diff --git a/src/tet3/tcc/tcc.c b/src/tet3/tcc/tcc.c
index bdd05986..ec1b8693 100644
--- a/src/tet3/tcc/tcc.c
+++ b/src/tet3/tcc/tcc.c
@@ -240,7 +240,7 @@ char **argv;
 			if (*optarg)
 				nostr(optarg, YN_CMDLINE);
 			else {
-				(void) fprintf(stderr,
+				fprintf(stderr,
 					"%s: no-string may not be empty\n",
 					tet_progname);
 				errors++;
@@ -259,7 +259,7 @@ char **argv;
 		case 't':	/* timeout for test case processing and
 				   lock acqusition */
 			if ((tcc_timeout = atoi(optarg)) <= 0) {
-				(void) fprintf(stderr,
+				fprintf(stderr,
 					"%s: timeout must be +ve\n", tet_progname);
 				errors++;
 			}
@@ -275,7 +275,7 @@ char **argv;
 			if (*optarg)
 				yesstr(optarg, YN_CMDLINE);
 			else {
-				(void) fprintf(stderr,
+				fprintf(stderr,
 					"%s: yes-string may not be empty\n",
 					tet_progname);
 				errors++;
@@ -299,7 +299,7 @@ char **argv;
 	*/
 	TRACE2(tet_Ttcc, 1, "tcc_modes = %s", prtccmode(tcc_modes));
 	if ((tcc_modes & (TCC_BUILD | TCC_EXEC | TCC_CLEAN)) == 0) {
-		(void) fprintf(stderr,
+		fprintf(stderr,
 			"%s: at least one of -b, -c, -e and -V must be specified\n",
 			tet_progname);
 		errors++;
@@ -307,7 +307,7 @@ char **argv;
 
 	/* ensure that only one of rerun and resume mode has been specified */
 	if ((tcc_modes & TCC_RERUN) && (tcc_modes & TCC_RESUME)) {
-		(void) fprintf(stderr,
+		fprintf(stderr,
 			"%s: only one of -m and -r may be specified\n",
 			tet_progname);
 		errors++;
@@ -323,7 +323,7 @@ char **argv;
 				codelist, old_journal_file);
 		}
 		else {
-			(void) fprintf(stderr,
+			fprintf(stderr,
 	"%s: need an old journal file name when -m or -r is specified\n",
 				tet_progname);
 			errors++;
@@ -352,7 +352,7 @@ char **argv;
 			tet_tsname = cwd + strlen(tet_suite_root);
 			while (isdirsep(*tet_tsname))
 				tet_tsname++;
-			(void) sprintf(fname, "%.*s",
+			sprintf(fname, "%.*s",
 				(int) sizeof fname - 1, tet_tsname);
 			for (p = fname; *p; p++)
 				if (isdirsep(*p)) {
@@ -502,7 +502,7 @@ char **argv;
 	jnl_init(jopt, cwd);
 	if (jnl_jfname())
 		printf("%s: journal file is %s\n", tet_progname, jnl_jfname());
-	(void) fflush(stdout);
+	fflush(stdout);
 	jnl_tcc_start(argcsave, argvsave);
 	jnl_uname();
 
@@ -557,7 +557,7 @@ static void badusage()
 
 	options[0] = tet_progname;
 
-	(void) fprintf(stderr, "\nusage:\t");
+	fprintf(stderr, "\nusage:\t");
 	pos = 8;
 	for (n = 0; n < sizeof options / sizeof options[0]; n++) {
 		if ((opt = options[n]) == (char *) 0)
@@ -568,10 +568,10 @@ static void badusage()
 		}
 		else
 			sep = n ? " " : "";
-		(void) fprintf(stderr, "%s%s", sep, opt);
+		fprintf(stderr, "%s%s", sep, opt);
 		pos += strlen(opt) + 1;
 	}
-	(void) fprintf(stderr, "\n\nor:\t");
+	fprintf(stderr, "\n\nor:\t");
 	pos = 8;
 	for (n = 0; n < sizeof options / sizeof options[0]; n++) {
 		if ((opt = options[n]) == (char *) 0)
@@ -589,10 +589,10 @@ static void badusage()
 		}
 		else
 			sep = n ? " " : "";
-		(void) fprintf(stderr, "%s%s", sep, opt);
+		fprintf(stderr, "%s%s", sep, opt);
 		pos += strlen(opt) + 1;
 	}
-	(void) fprintf(stderr, "\n\nor:\ttcc -V\n\n");
+	fprintf(stderr, "\n\nor:\ttcc -V\n\n");
 
 	tcc_exit(2);
 	/* NOTREACHED */
@@ -607,7 +607,7 @@ static void prversioninfo()
 	static char product_name[] =
 						"TET3";
 
-	(void) fprintf(stderr, "%s: %s%s Release %s\n",
+	fprintf(stderr, "%s: %s%s Release %s\n",
 		tet_progname,
 #ifdef TET_LITE		/* -LITE-CUT-LINE */
 		product_name, "-Lite",
diff --git a/src/tet3/tcc/tcc_in.c b/src/tet3/tcc/tcc_in.c
index 2b2bc4dc..7043aa15 100644
--- a/src/tet3/tcc/tcc_in.c
+++ b/src/tet3/tcc/tcc_in.c
@@ -133,7 +133,7 @@ char **argv;
 	}
 
 	rc = ts_ss2(pp, argv, sd);
-	(void) SOCKET_CLOSE(sd);
+	SOCKET_CLOSE(sd);
 
 	return(rc);
 }
@@ -185,7 +185,7 @@ SOCKET sd;
 	** the value of the listen socket's handle is passed to the daemon
 	** using the -l command-line option
 	*/
-	(void) sprintf(path, "%.*s/bin/%s",
+	sprintf(path, "%.*s/bin/%s",
 		(int) sizeof path - (int) strlen(*argv) - 6,
 		tet_root, *argv);
 
@@ -211,15 +211,15 @@ SOCKET sd;
 		** dup the socket on to fd 0 and close all other files
 		** except 1 and 2
 		*/
-		(void) close(0);
+		close(0);
 		if ((rc = fcntl(sd, F_DUPFD, 0)) != 0) {
 			error(errno, "server socket: fcntl(F_DUPFD) returned",
 				tet_i2a(rc));
 			_exit(~0);
 		}
 		for (fd = tet_getdtablesize() - 1; fd > 2; fd--)
-			(void) close(fd);
-		(void) execv(path, argv);
+			close(fd);
+		execv(path, argv);
 		error(errno, "can't exec", path);
 		_exit(~0);
 	}
diff --git a/src/tet3/tcc/tcc_xt.c b/src/tet3/tcc/tcc_xt.c
index 152b23db..e34d26e8 100644
--- a/src/tet3/tcc/tcc_xt.c
+++ b/src/tet3/tcc/tcc_xt.c
@@ -195,7 +195,7 @@ char **argv;
 
 	rc = ts_ss3(pp, argv, fd);
 
-	(void) t_close(fd);
+	t_close(fd);
 
 	return(rc);
 }
@@ -237,7 +237,7 @@ int fd;
 
 	if ((ret = T_ALLOC_BIND(fd)) == (struct t_bind *)0) {
 		xt_error(t_errno, "can't allocate T_BIND", (char *) 0);
-		(void) t_close(fd);
+		t_close(fd);
 		return(-1);
 	}
 	TRACE2(tet_Tbuf, 6, "t_alloc() = %s", tet_i2x(ret));
@@ -246,8 +246,8 @@ int fd;
 		xt_error(t_errno, "can't bind to server fd", (char *)0);
 
 		TRACE2(tet_Tbuf, 6, "t_free ret = %s", tet_i2x(ret));
-		(void) t_free((char *)ret, T_BIND);
-		(void) t_close(fd);
+		t_free((char *)ret, T_BIND);
+		t_close(fd);
 		return (-1);
 	}
 
@@ -255,8 +255,8 @@ int fd;
 	if (ret->addr.len == 0) {
 		xt_error(t_errno, "address not generated", (char *)0);
 		TRACE2(tet_Tbuf, 6, "t_free ret = %s", tet_i2x(ret));
-		(void) t_free((char *)ret, T_BIND);
-		(void) t_close(fd);
+		t_free((char *)ret, T_BIND);
+		t_close(fd);
 		return (-1);
 	}
 		
@@ -284,7 +284,7 @@ int fd;
 	}
 	else if (pid == 0) {
 		/* in child */
-		(void) sprintf(path, "%.*s/bin/%s",
+		sprintf(path, "%.*s/bin/%s",
 			(int) sizeof path - (int) strlen(*argv) - 6,
 			tet_root, *argv);
 #ifndef NOTRACE
@@ -296,9 +296,9 @@ int fd;
 #endif
 		/* dup the connection on to fd 0 and close all other
 			files except 1 and 2 */
-		(void) close(0);
+		close(0);
 		TRACE2(tet_Tbuf, 6, "t_free ret = %s", tet_i2x(ret));
-		(void) t_free((char *)ret, T_BIND);
+		t_free((char *)ret, T_BIND);
 
 		if ((rc = fcntl(fd, F_DUPFD, 0)) != 0) {
 			error(errno, "server socket: fcntl(F_DUPFD) returned",
@@ -306,8 +306,8 @@ int fd;
 			_exit(~0);
 		}
 		for (fd = tet_getdtablesize() - 1; fd > 2; fd--)
-			(void) close(fd);
-		(void) execv(path, argv);
+			close(fd);
+		execv(path, argv);
 		error(errno, "can't exec", path);
 		_exit(~0);
 	}
@@ -338,18 +338,18 @@ int fd;
 	if ((tp->tp_call.buf = (char *) malloc(tp->tp_call.maxlen)) == (char *) 0) {
 		error(errno, "can't malloc server address", (char *)0);
 		TRACE2(tet_Tbuf, 6, "t_free ret = %s", tet_i2x(ret));
-		(void) t_free((char *)ret, T_BIND);	
+		t_free((char *)ret, T_BIND);
 		return (-1);
 	}
 	TRACE2(tet_Tbuf, 6, "allocate tp_call.buf = %s",
 		tet_i2x(tp->tp_call.buf));
 
-	(void) memcpy(tp->tp_call.buf, ret->addr.buf, ret->addr.len);
+	memcpy(tp->tp_call.buf, ret->addr.buf, ret->addr.len);
 	if (ret->addr.maxlen > ret->addr.len)
-		(void) memset(tp->tp_call.buf + ret->addr.len, '\0',
+		memset(tp->tp_call.buf + ret->addr.len, '\0',
 			ret->addr.maxlen - ret->addr.len);
 
-	(void) t_free((char *)ret, T_BIND);	
+	t_free((char *)ret, T_BIND);
 	return (0);
 }
 
@@ -441,7 +441,7 @@ register int ptype;
 		}
 
 		mp->ts.osico.ts_len = tp->tp_call.len;
-		(void) memcpy(mp->ts.osico.ts_nsap, tp->tp_call.buf,
+		memcpy(mp->ts.osico.ts_nsap, tp->tp_call.buf,
 			tp->tp_call.len);
 
 		break;
diff --git a/src/tet3/tcc/tool.c b/src/tet3/tcc/tool.c
index 23da0f53..58ecba48 100644
--- a/src/tet3/tcc/tool.c
+++ b/src/tet3/tcc/tool.c
@@ -299,7 +299,7 @@ char *s;
 	*/
 	ap = *avp + *anp;
 	if (splitflds && nflds > 1) {
-		(void) sprintf(buf, "%.*s", (int) sizeof buf - 1, s);
+		sprintf(buf, "%.*s", (int) sizeof buf - 1, s);
 		nflds = tet_getargs(buf, ap, nflds);
 	}
 	else
@@ -360,7 +360,7 @@ char *tcname, **argv, *ocfname;
 	case TCS_EXEC:
 	case TCS_CLEAN:
 		xresfilename(prp->pr_scen->sc_tcname, buf, sizeof buf);
-		(void) tcc_unlink(*prp->pr_sys, buf);
+		tcc_unlink(*prp->pr_sys, buf);
 		prp->pr_tetxres = rstrstore(buf);
 		break;
 	}
@@ -391,7 +391,7 @@ char *tcname, **argv, *ocfname;
 
 	/* unlink an existing output capture file if one is specified */
 	if (ocfname)
-		(void) tcc_unlink(*prp->pr_sys, ocfname);
+		tcc_unlink(*prp->pr_sys, ocfname);
 
 	/*
 	** do the exec:
@@ -715,7 +715,7 @@ char *ocfname;
 		}
 		if (getremfile(prp, ocfname, tet_basename(tfname)) == 0)
 			ocf2jnl2(prp, tfname);
-		(void) UNLINK(tfname);
+		UNLINK(tfname);
 	}
 	else
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
@@ -753,7 +753,7 @@ char *ocfname;
 		jnl_captured(prp, buf);
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 }
 
 
@@ -784,7 +784,7 @@ char *fromfile, *tofile;
 	** directory on the local system
 	*/
 	if (tet_tcrxfile(*prp->pr_sys, fromfile, tofile) < 0) {
-		(void) sprintf(msg, fmt, sizeof msg - sizeof fmt, tofile);
+		sprintf(msg, fmt, sizeof msg - sizeof fmt, tofile);
 		prperror(prp, *prp->pr_sys, tet_tcerrno, msg, fromfile);
 		return(-1);
 	}
diff --git a/src/tet3/tcc/utils.c b/src/tet3/tcc/utils.c
index 906b4f63..d4d4e973 100644
--- a/src/tet3/tcc/utils.c
+++ b/src/tet3/tcc/utils.c
@@ -157,11 +157,11 @@ void scenermsg(s1, s2, lineno, fname)
 char *s1, *s2, *fname;
 int lineno;
 {
-	(void) fprintf(stderr, "%s: %s", tet_progname, s1);
+	fprintf(stderr, "%s: %s", tet_progname, s1);
 	if (s2 && *s2)
-		(void) fprintf(stderr, " %s", s2);
-	(void) fprintf(stderr, " at line %d in file %s\n", lineno, fname);
-	(void) fflush(stderr);
+		fprintf(stderr, " %s", s2);
+	fprintf(stderr, " at line %d in file %s\n", lineno, fname);
+	fflush(stderr);
 }
 
 /*
@@ -170,7 +170,7 @@ int lineno;
 
 void scengiveup()
 {
-	(void) fprintf(stderr,
+	fprintf(stderr,
 		"%s: giving up after finding %d scenario error%s\n",
 		tet_progname, scenerrors, scenerrors == 1 ? "" : "s");
 	tcc_exit(1);
@@ -196,7 +196,7 @@ int dirlen;
 		len = 1;
 	}
 
-	(void) sprintf(dir, "%.*s", TET_MIN(len, dirlen - 1), path);
+	sprintf(dir, "%.*s", TET_MIN(len, dirlen - 1), path);
 }
 
 /*
@@ -240,7 +240,7 @@ void fullpath(const char *dir, const char *file, char path[], int pathlen, int r
 			ASSERT(isabspathrem(dir));
 		else
 			ASSERT(isabspathloc(dir));
-		(void) sprintf(p, "%.*s", pathlen - 2, dir);
+		sprintf(p, "%.*s", pathlen - 2, dir);
 		len = strlen(p);
 		p += len;
 		pathlen -= len;
@@ -255,7 +255,7 @@ void fullpath(const char *dir, const char *file, char path[], int pathlen, int r
 	}
 
 
-	(void) sprintf(p, "%.*s", pathlen - 1, file);
+	sprintf(p, "%.*s", pathlen - 1, file);
 
 	if ((dir ? (int) strlen(dir) : 0) + (int) strlen(file) > pathlen - 2)
 		error(0, "path name is too long and has been truncated:",
diff --git a/src/tet3/tccd/config.c b/src/tet3/tccd/config.c
index 0e749059..f83a400b 100644
--- a/src/tet3/tccd/config.c
+++ b/src/tet3/tccd/config.c
@@ -265,7 +265,7 @@ register struct ptab *pp;
 			rc = ER_ERR;
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 	cflags = (cflags & ~CF_SINPROGRESS) | CF_SDONE;
 	pp->ptm_rc = rc;
 }
@@ -413,7 +413,7 @@ int mode;
 
 	if ((rc = op_c3(fname)) == ER_OK) {
 		if (tet_config[mode]) {
-			(void) UNLINK(tet_config[mode]);
+			UNLINK(tet_config[mode]);
 			TRACE3(tet_Tbuf, 6, "free tet_config[%s] = %s",
 				tet_i2a(mode), tet_i2x(tet_config[mode]));
 			free(tet_config[mode]);
@@ -457,7 +457,7 @@ char *fname;
 
 	/* remove the file if any of the above failed */
 	if (rc != ER_OK)
-		(void) UNLINK(fname);
+		UNLINK(fname);
 
 	return(rc);
 }
@@ -797,7 +797,7 @@ register struct ptab *pp;
 		pp->ptm_rc = ER_ERR;
 		return;
 	}
-	(void) sprintf(var, "%s=%s", envname, tet_config[mode]);
+	sprintf(var, "%s=%s", envname, tet_config[mode]);
 	if (tet_putenv(var) < 0) {
 		pp->ptm_rc = ER_ERR;
 		return;
@@ -818,6 +818,6 @@ void config_cleanup()
 
 	for (n = 0; n < sizeof tet_config / sizeof tet_config[0]; n++)
 		if (tet_config[n])
-			(void) UNLINK(tet_config[n]);
+			UNLINK(tet_config[n]);
 }
 
diff --git a/src/tet3/tccd/etab.c b/src/tet3/tccd/etab.c
index 0fd67b43..83f76a9f 100644
--- a/src/tet3/tccd/etab.c
+++ b/src/tet3/tccd/etab.c
@@ -147,7 +147,7 @@ struct ptab *pp;
 		for (ep = etab; ep; ep = ep->et_next)
 			if (ep->et_ptab == pp) {
 				if (ep->et_state == ES_RUNNING)
-					(void) KILL(ep->et_pid, SIGHUP);
+					KILL(ep->et_pid, SIGHUP);
 				etrm(ep);
 				etfree(ep);
 				done = 0;
diff --git a/src/tet3/tccd/exec.c b/src/tet3/tccd/exec.c
index 294bd11e..73a34ac7 100644
--- a/src/tet3/tccd/exec.c
+++ b/src/tet3/tccd/exec.c
@@ -268,12 +268,12 @@ struct etab *ep;
 
 void tcc_exec_signals()
 {
-	(void) signal(SIGHUP, SIG_DFL);
-	(void) signal(SIGINT, SIG_DFL);
-	(void) signal(SIGQUIT, SIG_DFL);
-	(void) signal(SIGTSTP, SIG_DFL);
-	(void) signal(SIGTTIN, SIG_DFL);
-	(void) signal(SIGTTOU, SIG_DFL);
+	signal(SIGHUP, SIG_DFL);
+	signal(SIGINT, SIG_DFL);
+	signal(SIGQUIT, SIG_DFL);
+	signal(SIGTSTP, SIG_DFL);
+	signal(SIGTTIN, SIG_DFL);
+	signal(SIGTTOU, SIG_DFL);
 }
 
 
@@ -529,8 +529,8 @@ register int timeout;
 			else
 				alarm_save = 2;
 		}
-		(void) alarm(alarm_save);
-		(void) signal(SIGALRM, (SIG_FUNC_T (*)()) sig_save);
+		alarm(alarm_save);
+		signal(SIGALRM, (SIG_FUNC_T (*)()) sig_save);
 	}
 
 	return(rc);
@@ -558,11 +558,11 @@ time_t start;
 	for (;;) {
 		status = 0;
 		if (timeout > 0)
-			(void) alarm((unsigned) TET_MAX(tleft, 2));
+			alarm((unsigned) TET_MAX(tleft, 2));
 		rc = tet_dowait3(&status, timeout ? 0 : WNOHANG);
 		save_errno = errno;
 		if (timeout > 0)
-			(void) alarm(0);
+			alarm(0);
 		TRACE4(tet_Ttccd, 4,
 			"wait3 returned pid = %s, status = %s, signal %s",
 			tet_i2a(rc), tet_i2a((status >> 8) & 0xff),
@@ -605,7 +605,7 @@ time_t start;
 static SIG_FUNC_T catchalarm(sig)
 int sig;
 {
-	(void) signal(SIGALRM, SIG_IGN);
+	signal(SIGALRM, SIG_IGN);
 	wait_timedout = 1;
 	longjmp(wait_env, 1);
 }
diff --git a/src/tet3/tccd/log.c b/src/tet3/tccd/log.c
index 7fd6b472..2598b38e 100644
--- a/src/tet3/tccd/log.c
+++ b/src/tet3/tccd/log.c
@@ -96,7 +96,7 @@ void loginit()
 		fatal(errno, "can't open log file", Logfile);
 
 	/* allow anyone to read/write to the logfile */
-	(void) CHMOD(Logfile, (mode_t)S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
+	CHMOD(Logfile, (mode_t)S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
 
 	/* attach stderr to the logfile */
 	errno = 0;
@@ -105,7 +105,7 @@ void loginit()
 		fatal(errno, "can't reopen stderr as", Logfile);
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 
 	setbuf(lfp, buf);
 
@@ -124,11 +124,11 @@ char *s1, *s2;
 
 	fp = getlogfp();
 
-	(void) fprintf(fp, "%s: %s", loghdr(), s1);
+	fprintf(fp, "%s: %s", loghdr(), s1);
 	if (s2 && *s2)
-		(void) fprintf(fp, " %s", s2);
-	(void) putc('\n', fp);
-	(void) fflush(fp);
+		fprintf(fp, " %s", s2);
+	putc('\n', fp);
+	fflush(fp);
 }
 
 /*
@@ -155,7 +155,7 @@ static char *loghdr()
 
 	t = time((time_t *) 0);
 	tp = localtime(&t);
-	(void) sprintf(header, "%.16s (%d) %d %s %d:%02d:%02d",
+	sprintf(header, "%.16s (%d) %d %s %d:%02d:%02d",
 		tet_progname, tet_mypid, tp->tm_mday, month[tp->tm_mon],
 		tp->tm_hour, tp->tm_min, tp->tm_sec);
 
diff --git a/src/tet3/tccd/log.c.orig b/src/tet3/tccd/log.c.orig
index dd640439..8a245290 100644
--- a/src/tet3/tccd/log.c.orig
+++ b/src/tet3/tccd/log.c.orig
@@ -89,7 +89,7 @@ void loginit()
 		fatal(errno, "can't open log file", Logfile);
 
 	/* allow anyone to read/write to the logfile */
-	(void) CHMOD(Logfile, (mode_t)S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
+	CHMOD(Logfile, (mode_t)S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
 
 	/* attach stderr to the logfile */
 	errno = 0;
@@ -98,7 +98,7 @@ void loginit()
 		fatal(errno, "can't reopen stderr as", Logfile);
 	}
 
-	(void) fclose(fp);
+	fclose(fp);
 
 	setbuf(lfp, buf);
 
@@ -117,11 +117,11 @@ char *s1, *s2;
 
 	fp = getlogfp();
 
-	(void) fprintf(fp, "%s: %s", loghdr(), s1);
+	fprintf(fp, "%s: %s", loghdr(), s1);
 	if (s2 && *s2)
-		(void) fprintf(fp, " %s", s2);
-	(void) putc('\n', fp);
-	(void) fflush(fp);
+		fprintf(fp, " %s", s2);
+	putc('\n', fp);
+	fflush(fp);
 }
 
 /*
@@ -150,7 +150,7 @@ static char *loghdr()
 
 	t = time((time_t *) 0);
 	tp = localtime(&t);
-	(void) sprintf(header, "%.16s (%d) %d %s %d:%02d:%02d",
+	sprintf(header, "%.16s (%d) %d %s %d:%02d:%02d",
 		tet_progname, tet_mypid, tp->tm_mday, month[tp->tm_mon],
 		tp->tm_hour, tp->tm_min, tp->tm_sec);
 
diff --git a/src/tet3/tccd/stcc.c b/src/tet3/tccd/stcc.c
index a3b91f88..3a58c1dd 100644
--- a/src/tet3/tccd/stcc.c
+++ b/src/tet3/tccd/stcc.c
@@ -126,7 +126,7 @@ struct ptab *pp;
 	for (n = 0; n < OP_PUTENV_NLINE(mp); n++) {
 		p1 = tet_equindex(AV_ENVAR(mp, n));
 		ASSERT(p1);
-		(void) sprintf(buf, "%.*s",
+		sprintf(buf, "%.*s",
 			TET_MIN((int) (p1 - AV_ENVAR(mp, n)), (int) sizeof buf - 1),
 			AV_ENVAR(mp, n));
 		if (!strcmp(buf, "TET_ROOT") && tetrootset(p1 + 1) < 0)
diff --git a/src/tet3/tccd/tccd.c b/src/tet3/tccd/tccd.c
index 35c4179c..df1d5ba4 100644
--- a/src/tet3/tccd/tccd.c
+++ b/src/tet3/tccd/tccd.c
@@ -129,9 +129,9 @@ int argc;
 char **argv;
 {
 	/* ignore certain signals */
-	(void) signal(SIGHUP, SIG_IGN);
-	(void) signal(SIGINT, SIG_IGN);
-	(void) signal(SIGQUIT, SIG_IGN);
+	signal(SIGHUP, SIG_IGN);
+	signal(SIGINT, SIG_IGN);
+	signal(SIGQUIT, SIG_IGN);
 
 	/* initialise the global variables for the library code */
 	tet_init_globals("tccd", PT_STCC, -1, logerror, tet_genfatal);
@@ -141,12 +141,12 @@ char **argv;
 	tet_init_blockable_sigs();
 
 	/* open the error log file */
-	(void) umask((mode_t) 022);
+	umask((mode_t) 022);
 	loginit();
 
 	/* catch SIGTERM */
 	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
-		(void) signal(SIGTERM, terminate);
+		signal(SIGTERM, terminate);
 
 	/* call the generic server */
 	return(tet_si_main(argc, argv, 0));
@@ -184,7 +184,7 @@ char *firstarg, *nextarg;
 		mask = 0;
 		while (*p >= '0' && *p <= '7')
 			mask = (mask << 3) | (*p++ & 07);
-		(void) umask((mode_t)(mask & 077));
+		umask((mode_t)(mask & 077));
 		break;
 	case 'l':
 		if (*(firstarg + 2))
@@ -266,7 +266,7 @@ void tet_ss_initdaemon()
 
 	/* fix up HOME environment variable if necessary */
 	if ((p = getenv(home)) == (char *) 0 || strcmp(p, pw->pw_dir)) {
-		(void) sprintf(buf, "%s=%.*s", home,
+		sprintf(buf, "%s=%.*s", home,
 			(int) sizeof buf - (int) sizeof home - 2, pw->pw_dir);
 		if ((p = tet_strstore(buf)) == (char *) 0 || tet_putenv(p) < 0)
 			exit(1);
@@ -274,7 +274,7 @@ void tet_ss_initdaemon()
 
 	/* provide a default PATH variable if necessary */
 	if ((p = getenv(path)) == (char *) 0) {
-		(void) sprintf(buf, "%s=%.*s", path,
+		sprintf(buf, "%s=%.*s", path,
 			(int) sizeof buf - (int) sizeof path - 2, defpath);
 		TRACE2(tet_Ttccd, 4, "no PATH env var, using default: \"%s\"",
 			buf);
@@ -296,11 +296,11 @@ void tet_ss_initdaemon()
 
 	/* attach stdin to /dev/null and stdout to stderr (which goes
 		to the log file */
-	(void) CLOSE(0);
+	CLOSE(0);
 	errno = 0;
 	if (OPEN(null, O_RDONLY, 0) != 0)
 		fatal(errno, "can't open", null);
-	(void) CLOSE(1);
+	CLOSE(1);
 	errno = 0;
 	if (FCNTL_F_DUPFD(FILENO(stderr), 1) != 1)
 		fatal(errno, "can't attach stdout to stderr", (char *) 0);
@@ -351,7 +351,7 @@ register struct ptab *pp;
 
 	/* emit a diagnostic message if this is unexpected */
 	if ((pp->pt_flags & PF_LOGGEDOFF) == 0) {
-		(void) sprintf(msg, fmt, (pp->pt_flags & PF_SERVER) ? se : cl);
+		sprintf(msg, fmt, (pp->pt_flags & PF_SERVER) ? se : cl);
 		error(0, msg, tet_r2a(&pp->pt_rid));
 	}
 
@@ -640,7 +640,7 @@ struct ptab *pp;
 void tet_ss_cleanup()
 {
 	config_cleanup();
-	(void) tet_xdlogoff();
+	tet_xdlogoff();
 	tet_ts_cleanup();
 	exit(0);
 }
@@ -689,7 +689,7 @@ int sig;
 int tetrootset(s)
 char *s;
 {
-	(void) sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, s);
+	sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, s);
 	return(0);
 }
 
diff --git a/src/tet3/tccd/tccd_in.c b/src/tet3/tccd/tccd_in.c
index 15c820ba..9604dd76 100644
--- a/src/tet3/tccd/tccd_in.c
+++ b/src/tet3/tccd/tccd_in.c
@@ -160,7 +160,7 @@ void ss_tsinitb4fork()
 	errno = 0;
 	if ((sd = fcntl(0, F_DUPFD, 3)) < 3)
 		fatal(errno, "can't dup stdin socket", (char *) 0);
-	(void) close(0);
+	close(0);
 
 
 	/* allocate a ptab entry for the incoming request */
@@ -176,7 +176,7 @@ void ss_tsinitb4fork()
 			(char *) 0);
 
 	/* log the connection */
-	(void) tet_ss_tsafteraccept(pp);
+	tet_ss_tsafteraccept(pp);
 
 	/* register the ptab entry */
 	tet_ss_newptab(pp);
@@ -207,7 +207,7 @@ void ss_tsinitb4fork()
 		errno = 0;
 		if ((tet_listen_sd = fcntl(sd, F_DUPFD, 3)) < 3)
 			fatal(errno, "can't dup listen socket", (char *) 0);
-		(void) close(sd);
+		close(sd);
 	}
 	else
 		tet_listen_sd = sd;
@@ -222,7 +222,7 @@ void ss_tsinitb4fork()
 	tet_ts_listen(tet_listen_sd);
 
 	/* arrange to reap child daemon processes */
-	(void) signal(SIGCHLD, waitchild);
+	signal(SIGCHLD, waitchild);
 
 #endif /* INETD */
 }
@@ -327,7 +327,7 @@ struct ptab *pp;
 		p = hp->h_name;
 	else
 		p = inet_ntoa(tp->tp_sin.sin_addr);
-	(void) sprintf(rhostname, "%.*s", (int) sizeof rhostname - 1, p);
+	sprintf(rhostname, "%.*s", (int) sizeof rhostname - 1, p);
 	logent("connection received from", rhostname);
 
 #ifdef INETD
@@ -344,9 +344,9 @@ struct ptab *pp;
 	else if (!pid) {
 		/* in child */
 		tet_mypid = getpid();
-		(void) close(tet_listen_sd);
+		close(tet_listen_sd);
 		tet_listen_sd = INVALID_SOCKET;
-		(void) signal(SIGCHLD, SIG_DFL);
+		signal(SIGCHLD, SIG_DFL);
 	}
 	else {
 		/* in parent - return -1 to close the socket and
@@ -376,7 +376,7 @@ int ss_tslogon()
 	FILE *fp;
 
 	ASSERT(tet_root[0]);
-	(void) sprintf(fname, "%.*s/%s",
+	sprintf(fname, "%.*s/%s",
 		(int) sizeof fname - (int) sizeof equiv - 1,
 		tet_root, equiv);
 
@@ -401,7 +401,7 @@ int ss_tslogon()
 	if (rc != ER_OK)
 		error(0, "refused login request from", rhostname);
 
-	(void) fclose(fp);
+	fclose(fp);
 	return(rc);
 }
 
@@ -424,7 +424,7 @@ int sig;
 	register int pid;
 #endif
 
-	(void) signal(SIGCHLD, SIG_DFL);
+	signal(SIGCHLD, SIG_DFL);
 
 #ifdef NOTRACE
 	while (tet_dowait3(&status, WNOHANG) > 0)
@@ -437,7 +437,7 @@ int sig;
 			tet_i2a(status & 0xff));
 #endif
 
-	(void) signal(SIGCHLD, waitchild);
+	signal(SIGCHLD, waitchild);
 }
 
 #endif
diff --git a/src/tet3/tccd/tccd_xt.c b/src/tet3/tccd/tccd_xt.c
index 6d2775fa..2be28268 100644
--- a/src/tet3/tccd/tccd_xt.c
+++ b/src/tet3/tccd/tccd_xt.c
@@ -144,9 +144,9 @@ char *firstarg, *nextarg;
 		/* all ok - copy static data to safer place */
 		np.maxlen	= p->maxlen;
 		np.len		= p->len;
-		(void) memcpy(np.buf, p->buf, p->len);
+		memcpy(np.buf, p->buf, p->len);
 		if (np.maxlen > np.len)
-			(void) memset(np.buf + np.len, '\0',
+			memset(np.buf + np.len, '\0',
 				np.maxlen - np.len);
 	
 		Tccdaddr = &np;
@@ -203,7 +203,7 @@ void ss_tsinitb4fork()
 		errno = 0;
 		if ((tet_listen_fd = fcntl(fd, F_DUPFD, 3)) < 3)
 			fatal(errno, "can't dup listen fd", (char *) 0);
-		(void) close(fd);
+		close(fd);
 	}
 	else
 		tet_listen_fd = fd;
@@ -236,7 +236,7 @@ void ss_tsinitb4fork()
 	tet_ts_listen(tet_listen_fd);
 
 	/* arrange to reap child daemon processes */
-	(void) signal(SIGCHLD, waitchild);
+	signal(SIGCHLD, waitchild);
 }
 
 /*
@@ -321,9 +321,9 @@ struct ptab *pp;
 	else if (!pid) {
 		/* in child */
 		tet_mypid = getpid();
-		(void) close(tet_listen_fd);
+		close(tet_listen_fd);
 		tet_listen_fd = -1;
-		(void) signal(SIGCHLD, SIG_DFL);
+		signal(SIGCHLD, SIG_DFL);
 	}
 	else {
 		/* in parent - return -1 to close the connection and
@@ -362,7 +362,7 @@ int sig;
 	register int pid;
 #endif
 
-	(void) signal(SIGCHLD, SIG_DFL);
+	signal(SIGCHLD, SIG_DFL);
 
 #ifdef NOTRACE
 	while (tet_dowait3(&status, WNOHANG) > 0)
@@ -375,7 +375,7 @@ int sig;
 			tet_i2a(status & 0xff));
 #endif
 
-	(void) signal(SIGCHLD, waitchild);
+	signal(SIGCHLD, waitchild);
 }
 
 
@@ -454,7 +454,7 @@ register struct ptab *pp;
 		}
 		TRACE2(tet_Tbuf, 6, "allocate TCP tsinfo buffer = %s",
 			tet_i2x(ap->buf));
-		(void) memset((char *) ap->buf, '\0',
+		memset((char *) ap->buf, '\0',
 			sizeof (struct sockaddr_in));
 
 		((struct sockaddr_in *)ap->buf)->sin_family
@@ -488,7 +488,7 @@ register struct ptab *pp;
 		}
 		TRACE2(tet_Tbuf, 6, "allocate OSICO tsinfo buffer = %s",
 			tet_i2x(ap->buf));
-		(void) memcpy(ap->buf, mp->ts.osico.ts_nsap, ap->len);
+		memcpy(ap->buf, mp->ts.osico.ts_nsap, ap->len);
 
 		TRACE4(tet_Ttccd, 2,
 			"received tsinfo for %s: len  = %s, addr = %s",
diff --git a/src/tet3/tccd/tccdstart.c b/src/tet3/tccd/tccdstart.c
index 75bd6421..b6800cb9 100644
--- a/src/tet3/tccd/tccdstart.c
+++ b/src/tet3/tccd/tccdstart.c
@@ -63,7 +63,7 @@ int main()
 	char **tp;
 
 	for (tp = text; tp < &text[sizeof text / sizeof text[0]]; tp++)
-		(void) fprintf(stderr, "%s\n", *tp);
+		fprintf(stderr, "%s\n", *tp);
 
 	return(1);
 }
diff --git a/src/tet3/tccd/tsfile.c b/src/tet3/tccd/tsfile.c
index a480bb05..306fd850 100644
--- a/src/tet3/tccd/tsfile.c
+++ b/src/tet3/tccd/tsfile.c
@@ -113,7 +113,7 @@ register struct ptab *pp;
 		AV_DIR(mp), AV_SUFFIX(mp));
 
 	/* construct the specified directory path name */
-	(void) sprintf(dir, "%.*s", (int) sizeof dir - 1, AV_DIR(mp));
+	sprintf(dir, "%.*s", (int) sizeof dir - 1, AV_DIR(mp));
 
 	/* open the directory */
 	if ((dirp = OPENDIR(dir)) == (DIR *) 0) {
@@ -129,7 +129,7 @@ register struct ptab *pp;
 	while ((dp = READDIR(dirp)) != (struct dirent *) 0)
 		if ((n = atoi(dp->d_name)) > nmax)
 			nmax = n;
-	(void) CLOSEDIR(dirp);
+	CLOSEDIR(dirp);
 
 	/* make the directory first without the suffix (try a few times) */
 	for (n = 0; n < 5; n++) {
@@ -141,7 +141,7 @@ register struct ptab *pp;
 			pp->ptm_len = 0;
 			return;
 		}
-		(void) sprintf(lokdir, "%s/%04d", dir, nmax);
+		sprintf(lokdir, "%s/%04d", dir, nmax);
 		TRACE2(tet_Ttccd, 6, "mksdir: try lokdir = \"%s\"", lokdir);
 		if (tet_mkdir(lokdir, DIRMODE) == 0 || errno != EEXIST)
 			break;
@@ -156,11 +156,11 @@ register struct ptab *pp;
 
 	/* then make the directory with the suffix
 		and remove the other one */
-	(void) sprintf(savdir, "%s%.3s", lokdir, AV_SUFFIX(mp));
+	sprintf(savdir, "%s%.3s", lokdir, AV_SUFFIX(mp));
 	TRACE2(tet_Ttccd, 6, "mksdir: make savdir = \"%s\"", savdir);
 	if ((rc = tet_mkdir(savdir, DIRMODE)) < 0)
 		error(errno, errmsg, savdir);
-	(void) tet_rmdir(lokdir);
+	tet_rmdir(lokdir);
 	if (rc < 0) {
 		pp->ptm_rc = ER_ERR;
 		pp->ptm_mtype = MT_NODATA;
@@ -174,7 +174,7 @@ register struct ptab *pp;
 		free(sfdir);
 	}
 	if ((sfdir = tet_strstore(savdir)) == (char *) 0) {
-		(void) tet_rmdir(savdir);
+		tet_rmdir(savdir);
 		pp->ptm_rc = ER_ERR;
 		pp->ptm_mtype = MT_NODATA;
 		pp->ptm_len = 0;
@@ -253,7 +253,7 @@ struct ptab *pp;
 			todir = sfdir;
 		else {
 			len = (int) sizeof dir - (int) strlen(sfdir) - 2;
-			(void) sprintf(dir, "%.*s/%.*s",
+			sprintf(dir, "%.*s/%.*s",
 				(int) sizeof dir - 2, sfdir,
 				TET_MAX(len, 0), AV_SUBDIR(mp));
 			todir = dir;
diff --git a/src/tet3/tcclib/lockfile.c b/src/tet3/tcclib/lockfile.c
index d5d34c01..dc51926e 100644
--- a/src/tet3/tcclib/lockfile.c
+++ b/src/tet3/tcclib/lockfile.c
@@ -88,7 +88,7 @@ int timeout;
 			errno = 0;
 			return(ER_TIMEDOUT);
 		}
-		(void) SLEEP(2);
+		SLEEP(2);
 	}
 
 	/* handle unexpected errors */
@@ -100,7 +100,7 @@ int timeout;
 	}
 
 	/* all ok so close the file and return success */
-	(void) CLOSE(fd);
+	CLOSE(fd);
 	return(ER_OK);
 }
 
diff --git a/src/tet3/tcclib/lsdir.c b/src/tet3/tcclib/lsdir.c
index 86e7fcfe..75d114da 100644
--- a/src/tet3/tcclib/lsdir.c
+++ b/src/tet3/tcclib/lsdir.c
@@ -109,7 +109,7 @@ char *dir;
 		*++fip = (char *) 0;
 		nfiles++;
 	}
-	(void) CLOSEDIR(dirp);
+	CLOSEDIR(dirp);
 
 	return(files);
 }
diff --git a/src/tet3/tcclib/lsdir.c.orig b/src/tet3/tcclib/lsdir.c.orig
index 39a0e8aa..353eb479 100644
--- a/src/tet3/tcclib/lsdir.c.orig
+++ b/src/tet3/tcclib/lsdir.c.orig
@@ -94,7 +94,7 @@ char *dir;
 		*++fip = (char *) 0;
 		nfiles++;
 	}
-	(void) CLOSEDIR(dirp);
+	CLOSEDIR(dirp);
 
 	return(files);
 }
diff --git a/src/tet3/tcclib/mktmpdir.c b/src/tet3/tcclib/mktmpdir.c
index a9858d05..30bb6992 100644
--- a/src/tet3/tcclib/mktmpdir.c
+++ b/src/tet3/tcclib/mktmpdir.c
@@ -90,7 +90,7 @@ char *dir, **subdp;
 	ASSERT(dir && *dir);
 
 	/* format the pid string */
-	(void) sprintf(pidstr, "%05u", tet_mypid);
+	sprintf(pidstr, "%05u", tet_mypid);
 
 	/* get a buffer for the tmp dir name */
 	needlen = strlen(dir) + strlen(pidstr) + 4;
@@ -100,7 +100,7 @@ char *dir, **subdp;
 	/* try to make the directory a few times */
 	for (salt1 = 'a'; salt1 <= 'z'; salt1++)
 		for (salt2 = 'a'; salt2 <= 'z'; salt2++) {
-			(void) sprintf(subdir, "%s/%s%c%c",
+			sprintf(subdir, "%s/%s%c%c",
 				dir, pidstr, salt1, salt2);
 			if ((rc = tcf_mktd2(subdir)) < 0)
 				return(rc);
diff --git a/src/tet3/tcclib/procdir.c b/src/tet3/tcclib/procdir.c
index 17a2628e..8b052028 100644
--- a/src/tet3/tcclib/procdir.c
+++ b/src/tet3/tcclib/procdir.c
@@ -142,10 +142,10 @@ int flag;
 
 	/* construct the path name to this file */
 	if (!*fromdir || (*fromdir == '.' && !*(fromdir + 1)))
-		(void) sprintf(path, "%.*s", (int) sizeof path - 1, fromfile);
+		sprintf(path, "%.*s", (int) sizeof path - 1, fromfile);
 	else {
 		len = (int) sizeof path - (int) strlen(fromdir) - 2;
-		(void) sprintf(path, "%.*s/%.*s",
+		sprintf(path, "%.*s/%.*s",
 			(int) sizeof path - 2, fromdir,
 			TET_MAX(len, 0), fromfile);
 	}
@@ -227,7 +227,7 @@ int flag;
 	rc = ER_OK;
 	len = (int) sizeof path - (int) strlen(fromdir) - 2;
 	for (fip = fromfiles; *fip; fip++) {
-		(void) sprintf(path, "%.*s/%.*s",
+		sprintf(path, "%.*s/%.*s",
 			(int) sizeof path - 2, fromdir,
 			TET_MAX(len, 0), *fip);
 		if (STAT(path, &stbuf) < 0) {
@@ -274,11 +274,11 @@ int flag;
 				return(ER_ERR);
 		p = tofile;
 		if (todir) {
-			(void) sprintf(tofile, "%.*s/",
+			sprintf(tofile, "%.*s/",
 				(int) sizeof tofile - 2, todir);
 			p += strlen(tofile);
 		}
-		(void) sprintf(p, "%.*s",
+		sprintf(p, "%.*s",
 			(int) sizeof tofile - (int) (p - tofile) - 1, fromfile);
 		TRACE3(Ttcclib, 8, "call xd_rxfile: from = \"%s\", to = \"%s\"",
 			fromfile, tofile);
@@ -311,7 +311,7 @@ char *fromfile, *todir;
 
 	/* construct the destination file name */
 	len = (int) sizeof tofile - (int) strlen(todir) - 2;
-	(void) sprintf(tofile, "%.*s/%.*s",
+	sprintf(tofile, "%.*s/%.*s",
 		(int) sizeof tofile - 2, todir, TET_MAX(len, 0), fromfile);
 
 	TRACE3(Ttcclib, 8, "tscopy(): fromfile = \"%s\", tofile = \"%s\"",
@@ -340,7 +340,7 @@ char *fromfile, *todir;
 	}
 	else {
 		rc = tsc2(ifd, fromfile, tofile);
-		(void) CLOSE(ifd);
+		CLOSE(ifd);
 	}
 
 	TRACE2(Ttcclib, 9, "tscopy() return %s", tet_ptrepcode(rc));
@@ -389,7 +389,7 @@ char *fromfile, *tofile;
 	else if (CHMOD(tofile, (mode_t) (stbuf.st_mode & MODEMASK)) < 0)
 		error(errno, "warning: can't chmod", tofile);
 
-	(void) CLOSE(ofd);
+	CLOSE(ofd);
 	return(rc);
 }
 
diff --git a/src/tet3/tcclib/rmrf.c b/src/tet3/tcclib/rmrf.c
index 8ea627d8..03b76b7d 100644
--- a/src/tet3/tcclib/rmrf.c
+++ b/src/tet3/tcclib/rmrf.c
@@ -98,12 +98,12 @@ char *path;
 	** otherwise, this is a file so just unlink it
 	*/
 	if (S_ISDIR(stbuf.st_mode)) {
-		(void) sprintf(file, "%.*s/", (int) sizeof file - 2, path);
+		sprintf(file, "%.*s/", (int) sizeof file - 2, path);
 		p = file + strlen(file);
 		if ((files = tcf_lsdir(path)) == (char **) 0)
 			return(-1);
 		for (fip = files; *fip; fip++) {
-			(void) sprintf(p, "%.*s",
+			sprintf(p, "%.*s",
 				(int) sizeof file - (int) (p - file) - 1, *fip);
 			if (tcf_rmrf(file) < 0)
 				rc = -1;
diff --git a/src/tet3/tcclib/sharlock.c b/src/tet3/tcclib/sharlock.c
index 24b067e6..88002a06 100644
--- a/src/tet3/tcclib/sharlock.c
+++ b/src/tet3/tcclib/sharlock.c
@@ -96,7 +96,7 @@ int timeout;
 	ASSERT(dir && *dir);
 
 	/* format the pid string */
-	(void) sprintf(pidstr, "%05lu", pid);
+	sprintf(pidstr, "%05lu", pid);
 
 	/* allocate storage for the lock file name */
 	if (BUFCHK(&fname, &fnamelen, (int) (strlen(dir) + strlen(pidstr)) + 4) < 0)
@@ -119,7 +119,7 @@ int timeout;
 		}
 		for (salt1 = 'a'; salt1 <= 'z'; salt1++) {
 			for (salt2 = 'a'; salt2 <= 'z'; salt2++) {
-				(void) sprintf(fname, "%s/%s%c%c",
+				sprintf(fname, "%s/%s%c%c",
 					dir, pidstr, salt1, salt2);
 				if ((fd = OPEN(fname, O_RDONLY | O_CREAT | O_EXCL, FILEMODE)) >= 0 || errno != EEXIST)
 					break;
@@ -149,11 +149,11 @@ int timeout;
 		}
 		if (timeout > 0 && time((time_t *) 0) > start + timeout)
 			return(ER_TIMEDOUT);
-		(void) SLEEP(2);
+		SLEEP(2);
 	}
 
 	/* all ok so close the file and return success */
-	(void) CLOSE(fd);
+	CLOSE(fd);
 	*lnp = fname;
 	return(ER_OK);
 }
diff --git a/src/tet3/tcclib/tcfexec.c b/src/tet3/tcclib/tcfexec.c
index 5e847614..4b4e4049 100644
--- a/src/tet3/tcclib/tcfexec.c
+++ b/src/tet3/tcclib/tcfexec.c
@@ -137,7 +137,7 @@ int flag, *pidp;
 			return(ER_ERR);
 		}
 		else if (tet_fioclex(fd) < 0) {
-			(void) close(fd);
+			close(fd);
 			return(ER_ERR);
 		}
 	}
@@ -154,14 +154,14 @@ int flag, *pidp;
 	if ((pid = tet_dofork()) == 0) {
 		/* in child */
 		if (fd >= 0) {
-			(void) fflush(stdout);
-			(void) close(1);
+			fflush(stdout);
+			close(1);
 			if (fcntl(fd, F_DUPFD, 1) != 1) {
 				error(errno, "can't dup stdout", (char *) 0);
 				_exit(~0);
 			}
-			(void) fflush(stderr);
-			(void) close(2);
+			fflush(stderr);
+			close(2);
 			if (fcntl(fd, F_DUPFD, 2) != 2) {
 				error(errno, "can't dup stderr", (char *) 0);
 				_exit(~0 - 1);
@@ -169,10 +169,10 @@ int flag, *pidp;
 		}
 		for (n = tet_getdtablesize() - 1; n > 2; n--) {
 			if (n != fd)
-				(void) close(n);
+				close(n);
 		}
 		tcc_exec_signals();
-		(void) execvp(path, argv);
+		execvp(path, argv);
 		error(errno, "can't exec", path);
 		switch (flag) {
 		case TCF_EXEC_TEST:
@@ -194,7 +194,7 @@ int flag, *pidp;
 
 	/* close outfile in the parent if one was specified */
 	if (fd >= 0)
-		(void) close(fd);
+		close(fd);
 
 
 	TRACE3(Ttcclib, 4, "after exec: pid = %s, return %s",
@@ -242,7 +242,7 @@ char *file;
 			if (p2 > fname && p2 < &fname[sizeof fname - 2])
 				*p2++ = '/';
 			*p2 = '\0';
-			(void) sprintf(p2, "%.*s",
+			sprintf(p2, "%.*s",
 				(int) (&fname[sizeof fname - 1] - p2), file);
 			TRACE2(Ttcclib, 6, "checkexec: try \"%s\"", fname);
 			if (tet_eaccess(fname, 01) == 0)
@@ -282,7 +282,7 @@ long snid;
 			tet_ptrepcode(tet_sderrno));
 
 	SLEEP(2);
-	(void) tet_sdlogoff(0);
+	tet_sdlogoff(0);
 
 #endif /* !TET_LITE */	/* -END-LITE-CUT- */
 }
diff --git a/src/tet3/tcm/child.c b/src/tet3/tcm/child.c
index 379159d7..e4849958 100644
--- a/src/tet3/tcm/child.c
+++ b/src/tet3/tcm/child.c
@@ -117,7 +117,7 @@ char **argv;
 	    TET_THR_KEYCREATE(&tet_sequence_key) != 0)
 	{
 		/* can't use tet_error() yet */
-		(void) fprintf(stderr,
+		fprintf(stderr,
 			"%s: TET_THR_KEYCREATE() failed in TCM startup",
 			tet_progname);
 		exit(EXIT_FAILURE);
diff --git a/src/tet3/tcm/ckversion.c b/src/tet3/tcm/ckversion.c
index 86b98546..e6f3bdae 100644
--- a/src/tet3/tcm/ckversion.c
+++ b/src/tet3/tcm/ckversion.c
@@ -97,7 +97,7 @@ static void rptversion PROTOLIST((char *, char **));
 void tet_check_apilib_version()
 {
 	if (mstrcmp(tet_apilib_version, expected_apilib_version)) {
-		(void) fprintf(stderr,
+		fprintf(stderr,
 			"%s: using wrong version of the API library\n",
 			tet_progname);
 		rptversion("expected", expected_apilib_version);
@@ -137,10 +137,10 @@ char **sp1, **sp2;
 static void rptversion(s, sp)
 char *s, **sp;
 {
-	(void) fprintf(stderr, "%s: %s version:", tet_progname, s);
+	fprintf(stderr, "%s: %s version:", tet_progname, s);
 	while (*sp)
-		(void) fprintf(stderr, " %s", *sp++);
-	(void) putc('\n', stderr);
-	(void) fflush(stderr);
+		fprintf(stderr, " %s", *sp++);
+	putc('\n', stderr);
+	fflush(stderr);
 }
 
diff --git a/src/tet3/tcm/dtcm.c b/src/tet3/tcm/dtcm.c
index 4e84ff63..331886d7 100644
--- a/src/tet3/tcm/dtcm.c
+++ b/src/tet3/tcm/dtcm.c
@@ -262,7 +262,7 @@ char	**argv;
 	    TET_THR_KEYCREATE(&tet_sequence_key) != 0)
 	{
 		/* can't use tet_error() yet */
-		(void) fprintf(stderr,
+		fprintf(stderr,
 			"%s: TET_THR_KEYCREATE() failed in TCM startup",
 			tet_pname);
 		exit(EXIT_FAILURE);
@@ -449,13 +449,13 @@ int icnum, tpnum, testnum;
 	if (sigsetjmp(skipjmp, 1) != 0)
 	{
 		/* we've caught an unexpected signal! */
-		(void) sprintf(buf, "unexpected signal %d (%s) received",
+		sprintf(buf, "unexpected signal %d (%s) received",
 			signum, tet_signame(signum));
 		tet_infoline(buf);
 		tet_result(TET_UNRESOLVED);
 		if (tet_child > 0)
 		{
-			(void) tet_killw(tet_child, KILLWAIT);
+			tet_killw(tet_child, KILLWAIT);
 			tet_child = 0;
 		}
 #  ifdef TET_THREADS
@@ -523,7 +523,7 @@ int icnum, tpnum, testnum;
 			TRACE3(tet_Ttcm, 1,
 				"about to call tet_invoketp(%s, %s)",
 				tet_i2a(icnum), tet_i2a(tpnum));
-			(void) tet_invoketp(icnum, tpnum);
+			tet_invoketp(icnum, tpnum);
 #ifdef TET_THREADS
 			tet_cln_threads(0);
 			tet_mtx_destroy();
@@ -560,19 +560,19 @@ int	sig;
 #  ifdef TET_THREADS
 	if (!TET_THR_EQUAL(TET_THR_SELF(), tet_start_tid))
 	{
-		(void) TET_THR_KILL(tet_start_tid, sig);
+		TET_THR_KILL(tet_start_tid, sig);
 		TET_THR_EXIT((void *)0);
 	}
 #  endif /* TET_THREADS */
 
-	(void) sprintf(mbuf,
+	sprintf(mbuf,
 		"Abandoning testset: caught unexpected signal %d (%s)",
 		sig, tet_signame(sig));
 	tet_error(0, mbuf);
 
 #  ifdef TET_LITE	/* -LITE-CUT-LINE- */
 	if (tet_tmpresfile != NULL)
-		(void) UNLINK(tet_tmpresfile);
+		UNLINK(tet_tmpresfile);
 #  endif		/* -LITE-CUT-LINE- */
 
 	/* log off all the servers and exit */
@@ -589,14 +589,14 @@ sigterm()
 	/* terminate [per-thread] child, if any */
 	if (tet_child > 0)
 	{
-		(void) tet_killw(tet_child, KILLWAIT);
+		tet_killw(tet_child, KILLWAIT);
 		tet_child = 0;
 	}
 
 #  ifdef TET_THREADS
 	if (!TET_THR_EQUAL(TET_THR_SELF(), tet_start_tid))
 	{
-		(void) TET_THR_KILL(tet_start_tid, SIGTERM);
+		TET_THR_KILL(tet_start_tid, SIGTERM);
 		TET_THR_EXIT((void *)0);
 	}
 
@@ -608,7 +608,7 @@ sigterm()
 
 #  ifdef TET_LITE	/* -LITE-CUT-LINE- */
 	if (tet_tmpresfile != NULL)
-		(void) UNLINK(tet_tmpresfile);
+		UNLINK(tet_tmpresfile);
 #  endif /* TET_LITE */	/* -LITE-CUT-LINE- */
 
 	/* call user-supplied cleanup function */
@@ -648,7 +648,7 @@ int sig;
 #  ifdef TET_THREADS
 	if (!TET_THR_EQUAL(TET_THR_SELF(), tet_start_tid))
 	{
-		(void) TET_THR_KILL(tet_start_tid, sig);
+		TET_THR_KILL(tet_start_tid, sig);
 		TET_THR_EXIT((void *)0);
 	}
 #  endif /* TET_THREADS */
@@ -671,7 +671,7 @@ sigset_t *set;
 	char	*list, *sname;
 	int	snum;
 
-	(void) sigemptyset(set);
+	sigemptyset(set);
 
 	list = tet_getvar(var);
 	if (list == NULL)
@@ -685,14 +685,14 @@ sigset_t *set;
 		/* Check it's not a standard signal */
 		if (strncmp(tet_signame(snum), "SIG", (size_t)3) == 0)
 		{
-			(void) sprintf(buf,
+			sprintf(buf,
 			    "warning: illegal entry \"%s\" in %s ignored",
 			    sname, var);
 			tet_error(0, buf);
 		}
 		else if (sigaddset(set, snum) == -1)
 		{
-			(void) sprintf(buf,
+			sprintf(buf,
 			    "warning: sigaddset() failed on entry \"%s\" in %s",
 			    sname, var);
 			tet_error(0, buf);
@@ -725,7 +725,7 @@ void	(*func)();
 		init_done = 1;
 	}
 
-	(void) sigemptyset(&tet_blockable_sigs);
+	sigemptyset(&tet_blockable_sigs);
 
 	/* NSIG is not provided by POSIX.1:  it must be defined via
 	   an extra feature-test macro, or on the compiler command line */
@@ -740,13 +740,13 @@ void	(*func)();
 		else
 			sig.sa_handler = func;
 		sig.sa_flags = 0;
-		(void) sigemptyset(&sig.sa_mask);
+		sigemptyset(&sig.sa_mask);
 		if (sigaction(i, &sig, (struct sigaction *)NULL) == 0 &&
 #  ifdef SIGBUS
 		    i != SIGBUS &&
 #  endif
 		    i != SIGSEGV && i != SIGILL && i != SIGFPE)
-			(void) sigaddset(&tet_blockable_sigs, i);
+			sigaddset(&tet_blockable_sigs, i);
 	}
 }
 
@@ -823,7 +823,7 @@ char *functype;
 		case SS_SYNCYES:
 			break;
 		default:
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 		"%s function Auto Sync error, sysid = %d, state = %s",
 				functype, sp->sy_sysid,
 				tet_systate(sp->sy_state));
@@ -879,12 +879,12 @@ int nicspec;
 	*/
 	err = 0;
 	if (!tet_isdefic(icmin)) {
-		(void) sprintf(msg, fmt, "min", icmin, icmin);
+		sprintf(msg, fmt, "min", icmin, icmin);
 		tet_error(0, msg);
 		err = 1;
 	}
 	if (!tet_isdefic(icmax)) {
-		(void) sprintf(msg, fmt, "max", icmax, icmax);
+		sprintf(msg, fmt, "max", icmax, icmax);
 		tet_error(0, msg);
 		icmax = 1;
 		err = 1;
@@ -934,7 +934,7 @@ int icmin, icmax;
 		for (p = icspec; *p; p++)
 			if (*p == ',')
 				break;
-		(void) sprintf(buf, "%.*s",
+		sprintf(buf, "%.*s",
 			TET_MIN((int) (p - icspec), (int) sizeof buf - 1),
 			icspec);
 		build_icl3(buf, icmin, icmax);
@@ -1008,7 +1008,7 @@ int icmin, icmax;
 	** print a diagnostic if the specified start IC does not exist
 	*/
 	if (!tet_isdefic(icstart)) {
-		(void) sprintf(msg, fmt, icstart);
+		sprintf(msg, fmt, icstart);
 		tet_error(0, msg);
 		while (++icstart <= icend)
 			if (tet_isdefic(icstart))
@@ -1032,7 +1032,7 @@ int icmin, icmax;
 	** print a diagnostic if the specified end IC does not exist
 	*/
 	if (icstart != icend && !tet_isdefic(icend)) {
-		(void) sprintf(msg, fmt, icend);
+		sprintf(msg, fmt, icend);
 		tet_error(0, msg);
 		while (--icend > icstart)
 			if (tet_isdefic(icend))
diff --git a/src/tet3/tcm/ictp.c b/src/tet3/tcm/ictp.c
index 1e81c169..2940f88b 100644
--- a/src/tet3/tcm/ictp.c
+++ b/src/tet3/tcm/ictp.c
@@ -209,7 +209,7 @@ int icno, tpcount;
 {
 	char buf[128];
 
-	(void) sprintf(buf, "%d %d %s", icno, tpcount, curtime());
+	sprintf(buf, "%d %d %s", icno, tpcount, curtime());
 	lite_output(TET_JNL_IC_START, buf, "IC Start");
 	return(0);
 }
@@ -241,7 +241,7 @@ int icno, tpcount;
 	ASSERT(tet_synreq);
 	if (tet_tcm_async(MK_ASPNO(icno, 0, S_ICSTART), SV_YES, SV_SYNC_TIMEOUT,
 		tet_synreq, &nsys) < 0) {
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 				"Auto Sync failed at start of IC %d", icno);
 			tet_error(tet_sderrno, errmsg);
 			tet_exit(EXIT_FAILURE);
@@ -264,7 +264,7 @@ int icno, tpcount;
 				break;
 			/* else fall through */
 		default:
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 		"Auto sync error at start of IC %d, sysid = %d, state = %s",
 				icno, sp->sy_sysid, tet_systate(sp->sy_state));
 			tet_error(tet_sderrno, errmsg);
@@ -306,7 +306,7 @@ int icno, tpcount;
 {
 	char buf[128];
 
-	(void) sprintf(buf, "%d %d %s", icno, tpcount, curtime());
+	sprintf(buf, "%d %d %s", icno, tpcount, curtime());
 	lite_output(TET_JNL_IC_END, buf, "IC End");
 }
 
@@ -355,17 +355,17 @@ int icno, tpno, testnum;
 {
 	char buf[128];
 
-	(void) sprintf(buf, "%d %s", testnum, curtime());
+	sprintf(buf, "%d %s", testnum, curtime());
 	lite_output(TET_JNL_TP_START, buf, "TP Start");
 
 	/* create temporary result file */
-	(void) remove(tet_tmpresfile);
+	remove(tet_tmpresfile);
 	if ((tet_tmpresfp = fopen(tet_tmpresfile, "a+b")) == (FILE *) 0)
 		fatal(errno, "cannot create temporary result file:",
 			tet_tmpresfile);
 
 	/* override umask (must be writable by set-uid children) */
-	(void) CHMOD(tet_tmpresfile, MODE666);
+	CHMOD(tet_tmpresfile, MODE666);
 
 	/*
 	** put pathname in environment to be picked up by tet_result() in
@@ -403,7 +403,7 @@ int icno, tpno, testnum;
 	ASSERT(tet_synreq);
 	if (tet_tcm_async(MK_ASPNO(icno, tpno, S_TPSTART), vote,
 		SV_SYNC_TIMEOUT, tet_synreq, &nsys) < 0) {
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 				"Auto Sync failed at start of TP %d", testnum);
 			tet_error(tet_sderrno, errmsg);
 			tet_exit(EXIT_FAILURE);
@@ -425,7 +425,7 @@ int icno, tpno, testnum;
 			tet_XSync_del = 1;
 			break;
 		default:
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 		"Auto Sync error at start of TP %d, sysid = %d, state = %s",
 				testnum, sp->sy_sysid,
 				tet_systate(sp->sy_state));
@@ -515,9 +515,9 @@ int icno, tpno, testnum;
 		have_result = 0;
 	}
 
-	(void) fclose(tet_tmpresfp);
-	(void) UNLINK(tet_tmpresfile);
-	(void) tet_putenv("TET_TMPRESFILE=");
+	fclose(tet_tmpresfp);
+	UNLINK(tet_tmpresfile);
+	tet_putenv("TET_TMPRESFILE=");
 
 	if (!have_result)
 	{
@@ -539,7 +539,7 @@ int icno, tpno, testnum;
 		}
 	}
 
-	(void) sprintf(buf, "%d %d %s", testnum, result, curtime());
+	sprintf(buf, "%d %d %s", testnum, result, curtime());
 	lite_output(TET_JNL_TP_RESULT, buf, res);
 
 	/*
@@ -555,7 +555,7 @@ int icno, tpno, testnum;
 		tet_mtx_destroy();
 		tet_mtx_init();
 #  endif
-		(void) sprintf(buf, "ABORT on result code %d \"%s\"",
+		sprintf(buf, "ABORT on result code %d \"%s\"",
 			result, res);
 		lite_output(TET_JNL_TCM_INFO, "", buf);
 		return(-1);
@@ -585,7 +585,7 @@ int icno, tpno, testnum;
 	ASSERT(tet_synreq);
 	if (tet_tcm_async(MK_ASPNO(icno, tpno, S_TPEND), SV_YES,
 		SV_SYNC_TIMEOUT * 10, tet_synreq, &nsys) < 0) {
-			(void) sprintf(errmsg, 
+			sprintf(errmsg,
 				"Auto Sync failed at end of TP %d", testnum);
 			tet_error(tet_sderrno, errmsg);
 			tet_exit(EXIT_FAILURE);
@@ -609,7 +609,7 @@ int icno, tpno, testnum;
 		case SS_SYNCYES:
 			break;
 		default:
-			(void) sprintf(errmsg,
+			sprintf(errmsg,
 		"Auto Sync error at end of TP %d, sysid = %d, state = %s",
 				testnum, sp->sy_sysid,
 				tet_systate(sp->sy_state));
@@ -638,7 +638,7 @@ static int mtcm_tpend2()
 	register struct synreq *sp;
 
 	/* signal TP end to XRESD */
-	(void) tet_xdtpend(tet_xrid);
+	tet_xdtpend(tet_xrid);
 	switch (tet_xderrno) {
 	case ER_OK:
 		return(0);
@@ -686,7 +686,7 @@ static int mtcm_tpend2()
 			case SS_SYNCNO:
 				break;
 			default:
-				(void) sprintf(errmsg,
+				sprintf(errmsg,
 			"Abort Auto Sync error, sysid = %d, state = %s",
 					sp->sy_sysid,
 					tet_systate(sp->sy_state));
@@ -717,7 +717,7 @@ int no_ics;
 
 #ifdef TET_LITE	/* -LITE-CUT-LINE- */
 
-	(void) sprintf(buf, "%s %d", versn, no_ics);
+	sprintf(buf, "%s %d", versn, no_ics);
 	lite_output(TET_JNL_TCM_START, buf, "TCM Start");
 
 #else		/* -START-LITE-CUT- */
@@ -725,7 +725,7 @@ int no_ics;
 	if (!ismaster()) 
 		return;
 
-	(void) sprintf(buf, "%d|%ld %s %d|TCM Start", 
+	sprintf(buf, "%d|%ld %s %d|TCM Start",
 		TET_JNL_TCM_START, tet_activity, versn, no_ics);
 
 	if (tet_xdxres(tet_xrid, buf) < 0) {
@@ -826,13 +826,13 @@ char *progname;
 
 	/* create the execution results file and open in append mode */
 
-	(void) remove(resfile);
+	remove(resfile);
 	tet_resfp = fopen(resfile, "a");
 	if (tet_resfp == NULL)
 		fatal(errno, "cannot create results file:", resfile);
 
 	/* override umask (must be writable by set-uid children) */
-	(void) CHMOD(resfile, MODE666);
+	CHMOD(resfile, MODE666);
 
 	tet_combined_ok = 1;
 }
@@ -854,7 +854,7 @@ char *data;
 	if (data == NULL)
 		data = "";
 
-	(void) sprintf(header, fmt, mtype, tet_activity,
+	sprintf(header, fmt, mtype, tet_activity,
 		fields[0] == '\0' ? "" : " ", fields);
 	tet_msgform(header, data, outbuf);
 	obp = outbuf;
@@ -871,9 +871,9 @@ static char *curtime()
 	struct tm *tp;
 	static char s[10];
 
-	(void) time(&t);
+	time(&t);
 	tp = localtime(&t);
-	(void) sprintf(s, "%02d:%02d:%02d", tp->tm_hour,
+	sprintf(s, "%02d:%02d:%02d", tp->tm_hour,
 		tp->tm_min, tp->tm_sec);
 
 	return s;
diff --git a/src/tet3/tcm/tcm_xt.c b/src/tet3/tcm/tcm_xt.c
index 934167ef..5eb5e4ec 100644
--- a/src/tet3/tcm/tcm_xt.c
+++ b/src/tet3/tcm/tcm_xt.c
@@ -176,7 +176,7 @@ int ptype;
 	
 	tp->tp_call.maxlen = np->maxlen;
 	tp->tp_call.len    = np->len;
-	(void) memcpy(tp->tp_call.buf, np->buf, np->len);
+	memcpy(tp->tp_call.buf, np->buf, np->len);
 
 	*paddr = pp;
 }
@@ -268,7 +268,7 @@ register int ptype;
 		return (-1);
 	  }
 	  mp->ts.osico.ts_len = tp->tp_call.len;
-	  (void) memcpy(mp->ts.osico.ts_nsap, tp->tp_call.buf, tp->tp_call.len);
+	  memcpy(mp->ts.osico.ts_nsap, tp->tp_call.buf, tp->tp_call.len);
 
 	  break;
 #endif
diff --git a/src/tet3/tcm/tcmfuncs.c b/src/tet3/tcm/tcmfuncs.c
index abfdb2f4..eb57cc99 100644
--- a/src/tet3/tcm/tcmfuncs.c
+++ b/src/tet3/tcm/tcmfuncs.c
@@ -149,7 +149,7 @@ char **argv;
 	/* get TET_ROOT out of the environment */
 	if ((envstring = getenv(tetroot_name)) == (char *) 0 || !*envstring)
 		envstring = strdup(".");
-	(void) sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, envstring);
+	sprintf(tet_root, "%.*s", (int) sizeof tet_root - 1, envstring);
 
 	/* get the dtet ti args out of the environment and count them */
 	if ((envstring = getenv(tiargs_name)) == (char *) 0 || !*envstring) {
@@ -339,7 +339,7 @@ char **argv;
 			case SS_SYNCYES:
 				break;
 			default:
-				(void) sprintf(errmsg,
+				sprintf(errmsg,
 				"initial sync error, sysid = %d, state = %s",
 					sp->sy_sysid,
 					tet_systate(sp->sy_state));
@@ -371,7 +371,7 @@ void tet_dtcmerror(int errnum, const char *file, int line,
 	int combined_save = 0;
 
 	/* start the buffer with filename and line number */
-	(void) sprintf(p, "(%s, %d): ", tet_basename(file), line);
+	sprintf(p, "(%s, %d): ", tet_basename(file), line);
 	p += strlen(p);
 
 	/* append the first message string */
diff --git a/src/tet3/xresd/tfproc.c b/src/tet3/xresd/tfproc.c
index 5eac0601..ec7a4747 100644
--- a/src/tet3/xresd/tfproc.c
+++ b/src/tet3/xresd/tfproc.c
@@ -172,7 +172,7 @@ char *tfname;
 
 	/* construct the transfer file name and store it */
 	len = (int) sizeof tfpath - (int) strlen(Tet_savedir) - 2;
-	(void) sprintf(tfpath, "%.*s/%.*s",
+	sprintf(tfpath, "%.*s/%.*s",
 		(int) sizeof tfpath - 2, Tet_savedir, TET_MAX(len, 0), tfname);
 	if ((tp->tf_name = tet_strstore(tfpath)) == (char *) 0)
 		return(ER_ERR);
@@ -288,7 +288,7 @@ register struct ptab *pp;
 		done = 1;
 		for (tp = tftab; tp; tp = tp->tf_next)
 			if (tp->tf_ptab == pp) {
-				(void) dotfclose(tp);
+				dotfclose(tp);
 				done = 0;
 				break;
 			}
diff --git a/src/tet3/xresd/xresd.c b/src/tet3/xresd/xresd.c
index fe227bee..0e74c143 100644
--- a/src/tet3/xresd/xresd.c
+++ b/src/tet3/xresd/xresd.c
@@ -191,7 +191,7 @@ register struct ptab *pp;
 
 	/* emit a diagnostic message if this is unexpected */
 	if ((pp->pt_flags & PF_LOGGEDOFF) == 0) {
-		(void) sprintf(msg, fmt, (pp->pt_flags & PF_SERVER) ? se : cl);
+		sprintf(msg, fmt, (pp->pt_flags & PF_SERVER) ? se : cl);
 		error(0, msg, tet_r2a(&pp->pt_rid));
 	}
 
diff --git a/src/tet3/xresd/xresproc.c b/src/tet3/xresd/xresproc.c
index a9c693ad..dfadd68b 100644
--- a/src/tet3/xresd/xresproc.c
+++ b/src/tet3/xresd/xresproc.c
@@ -725,7 +725,7 @@ register struct ptab *pp;
 		text = tet_getresname(result, &abflag);
 		if (abflag && (xp->xt_flags & XF_TCABORT) == 0) {
 			xp->xt_flags |= XF_TCABORT;
-			(void) sprintf(buf, fmt, result);
+			sprintf(buf, fmt, result);
 			xrinfo(xp, buf, text ? text : gcerr);
 		}
 	}
@@ -830,19 +830,19 @@ register int code;
 	/* format the variable part of the message */
 	switch (code) {
 	case TET_JNL_IC_START:
-		(void) sprintf(buf, "%d %d", xp->xt_icno, xp->xt_tpcount);
+		sprintf(buf, "%d %d", xp->xt_icno, xp->xt_tpcount);
 		text = "IC Start";
 		break;
 	case TET_JNL_IC_END:
-		(void) sprintf(buf, "%d %d", xp->xt_icno, xp->xt_tpcount);
+		sprintf(buf, "%d %d", xp->xt_icno, xp->xt_tpcount);
 		text = "IC End";
 		break;
 	case TET_JNL_TP_START:
-		(void) sprintf(buf, "%d", xp->xt_tpno);
+		sprintf(buf, "%d", xp->xt_tpno);
 		text = "TP Start";
 		break;
 	case TET_JNL_TP_RESULT:
-		(void) sprintf(buf, "%d %d", xp->xt_tpno, xp->xt_result);
+		sprintf(buf, "%d %d", xp->xt_tpno, xp->xt_result);
 		if ((text = tet_getresname(xp->xt_result, (int *) 0)) == (char *) 0)
 			text = "(NO RESULT NAME)";
 		break;
@@ -938,7 +938,7 @@ int state;
 	case XS_DEAD:
 		return("DEAD");
 	default:
-		(void) sprintf(msg, "%s%d", text, state);
+		sprintf(msg, "%s%d", text, state);
 		return(msg);
 	}
 }
diff --git a/src/tet3/xresd/xtab.c b/src/tet3/xresd/xtab.c
index 207b1324..b7f6dd0c 100644
--- a/src/tet3/xresd/xtab.c
+++ b/src/tet3/xresd/xtab.c
@@ -104,7 +104,7 @@ struct xtab *xp;
 
 	if (xp) {
 		if (xp->xt_xfp)
-			(void) fclose(xp->xt_xfp);
+			fclose(xp->xt_xfp);
 		if (xp->xt_xfname) {
 			TRACE2(tet_Tbuf, 6, "free xtab xfname = %s",
 				tet_i2x(xp->xt_xfname));
@@ -164,9 +164,9 @@ void xtrm(xp)
 struct xtab *xp;
 {
 	if (xp->xt_flags & XF_TPINPROGRESS)
-		(void) tpend(xp);
+		tpend(xp);
 	if (xp->xt_flags & XF_ICINPROGRESS)
-		(void) icend(xp);
+		icend(xp);
 
 	tet_listremove((struct llist **) &xtab, (struct llist *) xp);
 }
@@ -219,9 +219,9 @@ register struct ptab *pp;
 					count++;
 			if (count == xp->xt_nud) {
 				if (xp->xt_flags & XF_TPINPROGRESS)
-					(void) tpend(xp);
+					tpend(xp);
 				if (xp->xt_flags & XF_ICINPROGRESS)
-					(void) icend(xp);
+					icend(xp);
 				if (!xp->xt_ptab) {
 					xtrm(xp);
 					xtfree(xp);
diff --git a/src/tet3/xtilib/accept.c b/src/tet3/xtilib/accept.c
index 24565160..d308f7d6 100644
--- a/src/tet3/xtilib/accept.c
+++ b/src/tet3/xtilib/accept.c
@@ -112,7 +112,7 @@ int lfd;
 		/* bind this endpoint to an arbitrary protocol address */
 		if (t_bind(nfd, (struct t_bind *) 0, (struct t_bind *) 0) < 0) {
 			xt_error(t_errno, "can't bind fd", tet_i2a(nfd));
-			(void) t_close(nfd);
+			t_close(nfd);
 			tet_ptfree(pp);
 			return;
 		}	
@@ -130,7 +130,7 @@ int lfd;
 				xt_error(t_errno,"unexpected event",
 					tet_xtev2a(c_event));
 			}
-			(void) t_close(nfd);
+			t_close(nfd);
 			tet_ptfree(pp);
 			return;
 		}
@@ -152,12 +152,12 @@ int lfd;
 		TRACE2(tet_Tbuf, 6, "allocate tp_call.buf = %s",
 			tet_i2x(tp->tp_call.buf));
 
-		(void) memcpy(tp->tp_call.buf, tet_calls[i]->addr.buf,
+		memcpy(tp->tp_call.buf, tet_calls[i]->addr.buf,
 			(size_t)tet_calls[i]->addr.len);	
 
 		TRACE3(tet_Tbuf, 6, "t_free tet_calls[%s] = %s",
 			tet_i2a(i), tet_i2x(tet_calls[i]));
-		(void) t_free((char *)tet_calls[i], T_CALL);
+		t_free((char *)tet_calls[i], T_CALL);
  		tet_calls[i] = (struct t_call *)0;
 
 
diff --git a/src/tet3/xtilib/addr2lname.c b/src/tet3/xtilib/addr2lname.c
index c1a5c05a..1479519e 100644
--- a/src/tet3/xtilib/addr2lname.c
+++ b/src/tet3/xtilib/addr2lname.c
@@ -67,7 +67,7 @@ struct netbuf *np;
 		return (char *)0;
 
 	while (len--) {
-		(void) sprintf(p,"%02x", (unsigned char) *q++);
+		sprintf(p,"%02x", (unsigned char) *q++);
 		p += 2;
 	}
 	*p = '\0';
diff --git a/src/tet3/xtilib/connect.c b/src/tet3/xtilib/connect.c
index 044d2d06..006ab45f 100644
--- a/src/tet3/xtilib/connect.c
+++ b/src/tet3/xtilib/connect.c
@@ -101,14 +101,14 @@ register struct ptab *pp;
 			pp->pt_flags |= PF_ATTENTION;
 			return;
 		}
-		(void) t_close(fd);
+		t_close(fd);
 		fd = nfd;
 	}
 
 	/* bind this endpoint to an arbitrary protocol address */
 	if (t_bind(fd, (struct t_bind *)0, (struct t_bind *)0) < 0) {
 		xt_error(t_errno, "can't bind fd", tet_i2a(fd));
-		(void) t_close(fd);
+		t_close(fd);
 		pp->pt_state = PS_DEAD;
 		pp->pt_flags |= PF_ATTENTION;
 		return;
@@ -153,11 +153,11 @@ register struct ptab *pp;
 		default:
 			event = tet_xtev2a(t_look(fd));
 			TRACE2(tet_Tio, 6, "connect failed:%s", event);
-			(void) sprintf(buf, "%s(%.*s)", "connect failed",
+			sprintf(buf, "%s(%.*s)", "connect failed",
 				(int) sizeof buf - (int) strlen(event) - 17,
 				event);
 			xt_error(t_errno, buf, tet_r2a(&pp->pt_rid));
-			(void) t_close(fd);
+			t_close(fd);
 			pp->pt_state  = PS_DEAD;
 			break;	
 		}
diff --git a/src/tet3/xtilib/discon.c b/src/tet3/xtilib/discon.c
index 65b65b4c..5650d375 100644
--- a/src/tet3/xtilib/discon.c
+++ b/src/tet3/xtilib/discon.c
@@ -70,7 +70,7 @@ struct ptab *pp;
 		tet_i2a(tp->tp_fd));
 
 	if (tp->tp_fd >= 0) {
-		(void) t_close(tp->tp_fd);
+		t_close(tp->tp_fd);
 		tp->tp_fd = -1;
 	}
 
diff --git a/src/tet3/xtilib/poll.c b/src/tet3/xtilib/poll.c
index 3e4c0bdd..38b74715 100644
--- a/src/tet3/xtilib/poll.c
+++ b/src/tet3/xtilib/poll.c
@@ -115,7 +115,7 @@ int timeout;
 	while ((rc = ts_poll2(pp)) == 0) {
 		if (timeout >= 0 && time((time_t *) 0) >= start + timeout)
 			break;
-		(void) sleep((unsigned) 1);
+		sleep((unsigned) 1);
 	}
 	return (rc);
 #else
@@ -310,7 +310,7 @@ static int doaccept()
 			}
 			TRACE3(tet_Tbuf, 6, "t_free tet_calls[%s] = %s",
 				tet_i2a(i), tet_i2x(tet_calls[i]));
-			(void) t_free((char *) tet_calls[i], T_CALL);
+			t_free((char *) tet_calls[i], T_CALL);
 			tet_calls[i] = (struct t_call *) 0;
 			return (rc);
 		}
@@ -330,7 +330,7 @@ static int doaccept()
 		if (t_rcvdis(tet_listen_fd, discon) < 0) {
 			xt_error(t_errno, "t_rcvdis() failed", (char *) 0);
 			TRACE2(tet_Tbuf, 6, "free discon = %s", tet_i2x(discon));
-			(void) t_free((char *) discon, T_DIS);
+			t_free((char *) discon, T_DIS);
 			return(-1);
 		}
 
@@ -341,10 +341,10 @@ static int doaccept()
 			) {
 				TRACE3(tet_Tbuf, 6, "t_free tet_calls[%s] = %s",
 					tet_i2a(i), tet_i2x(tet_calls[i]));
-				(void) t_free((char *) tet_calls[i], T_CALL);
+				t_free((char *) tet_calls[i], T_CALL);
 				TRACE2(tet_Tbuf, 6, "free discon = %s",
 					tet_i2x(discon));
-				(void) t_free((char *) discon, T_DIS);
+				t_free((char *) discon, T_DIS);
 				tet_calls[i] = (struct t_call *) 0;
 			}
 		}
diff --git a/src/tet3/xtilib/rdwr.c b/src/tet3/xtilib/rdwr.c
index 3a9a3d66..b4687d07 100644
--- a/src/tet3/xtilib/rdwr.c
+++ b/src/tet3/xtilib/rdwr.c
@@ -112,7 +112,7 @@ register struct ptab *pp;
 		}
 		TDUMP(tet_Tio, 10, tp->tp_buf, DM_HDRSZ, msghdr);
 		pp->pt_flags &= ~PF_RCVHDR;
-		(void) tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
+		tet_bs2dtmhdr(tp->tp_buf, &pp->ptm_hdr, DM_HDRSZ);
 		if (pp->ptm_magic != DTM_MAGIC && pp->ptm_len) {
 			/* we are probably out of sync with sender */
 			error(0, "received bad message header,",
@@ -271,7 +271,7 @@ register struct ptab *pp;
 					rc, msgdata);
 				tp->tp_cnt += rc;
 			}
-			(void) tet_dmlen2bs(rc, tp->tp_buf);
+			tet_dmlen2bs(rc, tp->tp_buf);
 		} while (err);
 		tp->tp_ptr = tp->tp_buf;
 		pp->pt_flags |= PF_INPROGRESS;
@@ -428,7 +428,7 @@ register struct ptab *pp;
 
 	TRACE2(tet_Tio, 4, "tet_ts_dead: close fd %s", tet_i2a(tp->tp_fd));
 
-	(void) t_close(tp->tp_fd);
+	t_close(tp->tp_fd);
 	tp->tp_fd = -1;
 	pp->pt_flags &= ~(PF_CONNECTED | PF_INPROGRESS);
 }
diff --git a/src/tet3/xtilib/tccdaddr.c b/src/tet3/xtilib/tccdaddr.c
index 562eddb0..82562c82 100644
--- a/src/tet3/xtilib/tccdaddr.c
+++ b/src/tet3/xtilib/tccdaddr.c
@@ -95,7 +95,7 @@ struct ptab *pp;
 	/* all ok so fill in the address details */
 	tp->tp_call.maxlen	= np->maxlen;
 	tp->tp_call.len		= np->len;
-	(void) memcpy(tp->tp_call.buf, np->buf, (size_t)np->len);
+	memcpy(tp->tp_call.buf, np->buf, (size_t)np->len);
 
 	return(0);
 }
diff --git a/src/tet3/xtilib/xtierror.c b/src/tet3/xtilib/xtierror.c
index 2d63f352..9ed5204a 100644
--- a/src/tet3/xtilib/xtierror.c
+++ b/src/tet3/xtilib/xtierror.c
@@ -72,24 +72,24 @@ void tet_xtierror(int errnum, const char *file, int line, const char *s1,
 	const char *s3;
 	int save_errno = errno;
 
-	(void) fprintf(stderr, "%s (%s, %d): %s",
+	fprintf(stderr, "%s (%s, %d): %s",
 		tet_progname, tet_basename(file), line, s1);
 	if (s2 && *s2)
-		(void) fprintf(stderr, " %s", s2);
+		fprintf(stderr, " %s", s2);
 	if (errnum > 0) {
 		if (errnum == TSYSERR) {
 			if ((s3 = strerror(save_errno)) == (char *) 0)
-				(void) fprintf(stderr, ", errno = %s",
+				fprintf(stderr, ", errno = %s",
 					tet_errname(save_errno));
 			else
-				(void) fprintf(stderr, ": %s", s3);
+				fprintf(stderr, ": %s", s3);
 		}
 		else 
-			(void) fprintf(stderr, ": %s", tet_xterrno2a(errnum));
+			fprintf(stderr, ": %s", tet_xterrno2a(errnum));
 	}
 
-	(void) putc('\n', stderr);
-	(void) fflush(stderr);
+	putc('\n', stderr);
+	fflush(stderr);
 
 	errno = 0;
 	t_errno = 0;
@@ -195,7 +195,7 @@ int n;
 #endif
 
 	default :
-		(void) sprintf(buf, fmt, n);
+		sprintf(buf, fmt, n);
 		return (buf);
 	}
 }
@@ -243,7 +243,7 @@ int n;
 #endif
 
 	default :
-		(void) sprintf(buf, fmt, n);
+		sprintf(buf, fmt, n);
 		return (buf);
 	
 	}
diff --git a/xts5/Xlib4/XCreateWindow/commattr.mc b/xts5/Xlib4/XCreateWindow/commattr.mc
index 113312e6..6c11abbe 100644
--- a/xts5/Xlib4/XCreateWindow/commattr.mc
+++ b/xts5/Xlib4/XCreateWindow/commattr.mc
@@ -613,7 +613,7 @@ Cursor pcur;
 #endif
 
 		/* Warp the pointer to the child window. */
-	(void) warppointer(display, w, 0,0);
+	warppointer(display, w, 0,0);
 
 		/* Verify that the current cursor is that of the parent. */
 	if(spriteiswin(display, parent) == False) {	
@@ -1263,7 +1263,7 @@ static	unsigned long	validbits[] = {
 
 		attributes->bit_gravity = vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1329,7 +1329,7 @@ static	unsigned long	validbits[] = {
 
 		attributes->win_gravity = vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1380,7 +1380,7 @@ static	int 	validvalues[] = {
 
 		attributes->backing_store = vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1428,7 +1428,7 @@ static	int 	validvalues[] = {
 
 		attributes->save_under= vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1525,7 +1525,7 @@ static	unsigned long	validbits[] = {
 
 		attributes->event_mask = vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1622,7 +1622,7 @@ static	unsigned long	validbits[] = {
 
 		attributes->do_not_propagate_mask = vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1670,7 +1670,7 @@ static	int 	validvalues[] = {
 
 		attributes->override_redirect= vals[i];
 
-		(void) XCALL;
+		XCALL;
 
 		if(geterr() == BadValue)
 			CHECK;
@@ -1759,7 +1759,7 @@ static	int 	validvalues[] = {
 >># 
 >># 		valuemask = vals[i];
 >># 
->># 		(void) XCALL;
+>># 		XCALL;
 >># 
 >># 		if(geterr() == BadValue)
 >># 			CHECK;
diff --git a/xts5/lib/gc/subwindow.mc b/xts5/lib/gc/subwindow.mc
index e6d6b7b0..f0162afe 100644
--- a/xts5/lib/gc/subwindow.mc
+++ b/xts5/lib/gc/subwindow.mc
@@ -242,7 +242,7 @@ int 	i, j;
 			subwins[i] = crechild(A_DISPLAY, A_DRAW, &area);
 			for (j = 0; j < swmheight; j += 10) {
 				setarea(&area, 0, j, swmwidth, 6);
-				(void) crechild(A_DISPLAY, subwins[i], &area);
+				crechild(A_DISPLAY, subwins[i], &area);
 			}
 		}
 
diff --git a/xts5/src/bin/mc/code.c b/xts5/src/bin/mc/code.c
index 7d4037d6..9c483fb0 100644
--- a/xts5/src/bin/mc/code.c
+++ b/xts5/src/bin/mc/code.c
@@ -203,7 +203,7 @@ char	*buf;
 	FpAssertion = (FILE *)-1;
 	FpStrategy = (FILE *)-1;
 	setoutline();
-	(void) fprintf(FpCode, "%sint 	tet_thistest;\n\n", (lflag)? "extern ": "");
+	fprintf(FpCode, "%sint 	tet_thistest;\n\n", (lflag)? "extern ": "");
 }
 
 /*ARGSUSED*/
@@ -214,13 +214,13 @@ char	*buf;
 	int i;
 
 	/* Finish the copyright banner */
-	(void) fprintf(FpBanner, "*/\n");
+	fprintf(FpBanner, "*/\n");
 
 	/* Finish the code section */
-	(void) fprintf(FpCode, "/* End of Test Cases */\n\n\n");
+	fprintf(FpCode, "/* End of Test Cases */\n\n\n");
 
 	setoutline();
-	(void) fprintf(FpCode, "%sstruct tet_testlist tet_testlist[] = {\n",
+	fprintf(FpCode, "%sstruct tet_testlist tet_testlist[] = {\n",
 		(lflag)? "static ": "");
 
 	/*
@@ -228,12 +228,12 @@ char	*buf;
 	 */
 	for (i = 1; i <= Testnum; i++) {
 		if (!gbflag)
-			(void) fprintf(FpCode, "\t{ t%03d, %d },\n", Icnum[i], Icnum[i]);
+			fprintf(FpCode, "\t{ t%03d, %d },\n", Icnum[i], Icnum[i]);
 		else
-			(void) fprintf(FpCode, "\t{ t%03d, %s },\n", Icnum[i], Ictype[i]);
+			fprintf(FpCode, "\t{ t%03d, %s },\n", Icnum[i], Ictype[i]);
 	}
-	(void) fprintf(FpCode, "\t{ NULL, 0 }\n};\n\n");
-	(void) fprintf(FpCode, "%sint \tntests = sizeof(tet_testlist)/sizeof(struct tet_testlist)-1;\n\n",
+	fprintf(FpCode, "\t{ NULL, 0 }\n};\n\n");
+	fprintf(FpCode, "%sint \tntests = sizeof(tet_testlist)/sizeof(struct tet_testlist)-1;\n\n",
 		(lflag)?"static ": "");
 
 	/*
@@ -241,22 +241,22 @@ char	*buf;
 	 * entry.
 	 */
 	if (lflag) {
-		(void) fprintf(FpCode, "struct linkinfo E%s = {\n", name12(State.name));
-		(void) fprintf(FpCode, "\t\"%s%s\",\n",
+		fprintf(FpCode, "struct linkinfo E%s = {\n", name12(State.name));
+		fprintf(FpCode, "\t\"%s%s\",\n",
 			(mflag)? "m": "",name10lc(State.name));
-		(void) fprintf(FpCode, "\t\"%s\",\n", State.name);
-		(void) fprintf(FpCode, "\t&ntests,\n");
-		(void) fprintf(FpCode, "\ttet_testlist,\n");
+		fprintf(FpCode, "\t\"%s\",\n", State.name);
+		fprintf(FpCode, "\t&ntests,\n");
+		fprintf(FpCode, "\ttet_testlist,\n");
 		if (Settings.startup)
-			(void) fprintf(FpCode, "\t%s,\n", Settings.startup);
+			fprintf(FpCode, "\t%s,\n", Settings.startup);
 		else
-			(void) fprintf(FpCode, "\t0,\n");
+			fprintf(FpCode, "\t0,\n");
 
 		if (Settings.cleanup)
-			(void) fprintf(FpCode, "\t%s,\n", Settings.cleanup);
+			fprintf(FpCode, "\t%s,\n", Settings.cleanup);
 		else
-			(void) fprintf(FpCode, "\t0,\n");
-		(void) fprintf(FpCode, "};\n\n");
+			fprintf(FpCode, "\t0,\n");
+		fprintf(FpCode, "};\n\n");
 	}
 
 	/*
@@ -264,28 +264,28 @@ char	*buf;
 	 * is a linked binary or not.
 	 */
 	if (lflag) {
-		(void) fprintf(FpCode, "extern void	(*tet_startup)();\n");
-		(void) fprintf(FpCode, "extern void	(*tet_cleanup)();\n");
+		fprintf(FpCode, "extern void	(*tet_startup)();\n");
+		fprintf(FpCode, "extern void	(*tet_cleanup)();\n");
 	} else {
 		if (State.xtoolkit != 0)
 		{
-			(void) fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
 				, Settings.startup? Settings.startup: "NULL" );
-			(void) fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
 				, Settings.cleanup? Settings.cleanup: "NULL");
 		} 
 		else if (State.xcms != 0)
 		{
-			(void) fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
 				, Settings.startup? Settings.startup: "r5_startup" );
-			(void) fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
 				, Settings.cleanup? Settings.cleanup: "r5_cleanup");
 		} 
 		else 
 		{
-			(void) fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_startup)() = %s;\n"
 			 	, Settings.startup? Settings.startup: "startup");
-			(void) fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
+			fprintf(FpCode, "void	(*tet_cleanup)() = %s;\n"
 				, Settings.cleanup? Settings.cleanup: "cleanup");
 		}
 	}
@@ -373,8 +373,8 @@ static	int 	oncethrough;
 	oncethrough = 1;
 
 	setoutline();
-	(void) fprintf(FpExtern, "\n#define T_%s\t1\n", State.name);
-	(void) fprintf(FpExtern, "%schar    *TestName = \"%s\";\n\n",
+	fprintf(FpExtern, "\n#define T_%s\t1\n", State.name);
+	fprintf(FpExtern, "%schar    *TestName = \"%s\";\n\n",
 			(lflag)? "static ": "", State.name);
 
 	Nargs = 0;
@@ -435,39 +435,39 @@ static	int 	oncethrough;
 	 * here.
 	 */
 	if (Nargs > 2)
-		(void) fprintf(FpExtern, "/*\n * Arguments to the %s %s\n */\n",
+		fprintf(FpExtern, "/*\n * Arguments to the %s %s\n */\n",
 			State.name, (mflag)? "macro": "function");
 	for (i = 2; i < Nargs; i++) {
-		(void) fprintf(FpExtern, "static ");
+		fprintf(FpExtern, "static ");
 		for (cp = Arglines[i]; *cp; cp++) {
 			if ((*cp == ' ' && cp[1] == '=') || *cp == '=') {
-				(void) fprintf(FpExtern, ";\n");
+				fprintf(FpExtern, ";\n");
 				break;
 			}
-			(void) fputc(*cp, FpExtern);
+			fputc(*cp, FpExtern);
 		}
 	}
 	if (Nargs > 2)
-		(void) fprintf(FpExtern, "\n\n");
+		fprintf(FpExtern, "\n\n");
 
 	if (NeedStatus)
-		(void) fprintf(FpExtern, "static int 	StatusReturn;\n");
+		fprintf(FpExtern, "static int 	StatusReturn;\n");
 	if (NeedValue)
-		(void) fprintf(FpExtern, "static int 	ValueReturn;\n");
+		fprintf(FpExtern, "static int 	ValueReturn;\n");
 	if (NeedStatus || NeedValue)
-		(void) fprintf(FpExtern, "\n");
+		fprintf(FpExtern, "\n");
 
 	if (Nargs > 2) {
-		(void) fprintf(FpCode, "/*\n * Called at the beginning of each test purpose to reset the\n * arguments to their initial values\n */\n");
-		(void) fprintf(FpCode, "static void\nsetargs()\n{\n");
+		fprintf(FpCode, "/*\n * Called at the beginning of each test purpose to reset the\n * arguments to their initial values\n */\n");
+		fprintf(FpCode, "static void\nsetargs()\n{\n");
 
 		for (i = 2; i < Nargs; i++) {
 			if (Arginit[i])
-				(void) fprintf(FpCode, "\t%s = %s", Argnames[i], Arginit[i]);
+				fprintf(FpCode, "\t%s = %s", Argnames[i], Arginit[i]);
 			else
-				(void) fprintf(FpCode, "\t%s = 0;\n", Argnames[i]);
+				fprintf(FpCode, "\t%s = 0;\n", Argnames[i]);
 		}
-		(void) fprintf(FpCode, "}\n\n");
+		fprintf(FpCode, "}\n\n");
 	}
 
 	/*
@@ -475,8 +475,8 @@ static	int 	oncethrough;
 	 * for the server resources for testing error funtcions.
 	 */
 	if (Nargs) {
-		(void) fprintf(FpCode, "/*\n * Set the arguments to default values for error tests\n */\n");
-		(void) fprintf(FpCode, "static void\nseterrdef()\n{\n");
+		fprintf(FpCode, "/*\n * Set the arguments to default values for error tests\n */\n");
+		fprintf(FpCode, "static void\nseterrdef()\n{\n");
 	}
 
 	for (i = 2; i < Nargs; i++) {
@@ -498,35 +498,35 @@ static	int 	oncethrough;
 
 		for (cp = errdeftypes; *cp; cp++) {
 			if (strncmp(Arglines[i], *cp, strlen(*cp)) == 0)
-				(void) fprintf(FpCode, "\t%s = Errdef%s;\n", Argnames[i], *cp);
+				fprintf(FpCode, "\t%s = Errdef%s;\n", Argnames[i], *cp);
 		}
 	}
 	if (Nargs)
-		(void) fprintf(FpCode, "}\n\n");
+		fprintf(FpCode, "}\n\n");
 
 	/*
 	 * If this is testing a particular function then put out a
 	 * synopsis in the header.
 	 */
 	if (Nargs > 1) {
-		(void) fprintf(FpSynopsis, "/*\n * SYNOPSIS:\n");
-		(void) fprintf(FpSynopsis, " *   %s", Arglines[0]); /* return type */
-		(void) fprintf(FpSynopsis, " *   %s(", State.name);
+		fprintf(FpSynopsis, "/*\n * SYNOPSIS:\n");
+		fprintf(FpSynopsis, " *   %s", Arglines[0]); /* return type */
+		fprintf(FpSynopsis, " *   %s(", State.name);
 		for (i = 2; i < Nargs; i++) {
-			(void) fprintf(FpSynopsis, "%s%s", Argnames[i], (i == Nargs-1)? "": ", ");
+			fprintf(FpSynopsis, "%s%s", Argnames[i], (i == Nargs-1)? "": ", ");
 		}
-		(void) fprintf(FpSynopsis, ")\n");
+		fprintf(FpSynopsis, ")\n");
 		for (i = 2; i < Nargs; i++) {
-			(void) fprintf(FpSynopsis, " *   ");
+			fprintf(FpSynopsis, " *   ");
 			for (cp = Arglines[i]; *cp; cp++) {
 				if ((*cp == ' ' && cp[1] == '=') || *cp == '=') {
-					(void) fprintf(FpSynopsis, ";\n");
+					fprintf(FpSynopsis, ";\n");
 					break;
 				}
-				(void) fputc(*cp, FpSynopsis);
+				fputc(*cp, FpSynopsis);
 			}
 		}
-		(void) fprintf(FpSynopsis, " */\n\n");
+		fprintf(FpSynopsis, " */\n\n");
 	}
 }
 
@@ -551,7 +551,7 @@ int 	window = 0;
 int 	image = 0;
 
 	if (Nargs > 2)
-		(void) fprintf(FpDefines, "/*\n * Defines for different argument types\n */\n");
+		fprintf(FpDefines, "/*\n * Defines for different argument types\n */\n");
 
 	for (i = 2; i < Nargs; i++) {
 
@@ -566,17 +566,17 @@ int 	image = 0;
 
 		if (STRPRECMP(Arglines[i], "Atom") == 0) {
 			if (atom == 0)
-				(void) fprintf(FpDefines, "#define A_ATOM %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_ATOM %s\n", Argnames[i]);
 			atom++;
 			defargtype("A_ATOM", atom);
 		} else if (STRPRECMP(Arglines[i], "Colormap") == 0) {
 			if (colormap == 0)
-				(void) fprintf(FpDefines, "#define A_COLORMAP %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_COLORMAP %s\n", Argnames[i]);
 			colormap++;
 			defargtype("A_COLORMAP", colormap);
 		} else if (STRPRECMP(Arglines[i], "Cursor") == 0) {
 			if (cursor == 0)
-				(void) fprintf(FpDefines, "#define A_CURSOR %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_CURSOR %s\n", Argnames[i]);
 			cursor++;
 			defargtype("A_CURSOR", cursor);
 		} else if (STRPRECMP(Arglines[i], "Display") == 0) {
@@ -585,23 +585,23 @@ int 	image = 0;
 				errexit();
 			}
 			defargtype("A_DISPLAY", display);
-			(void) fprintf(FpDefines, "#define A_DISPLAY %s\n", Argnames[i]);
+			fprintf(FpDefines, "#define A_DISPLAY %s\n", Argnames[i]);
 		} else if (STRPRECMP(Arglines[i], "Drawable") == 0) {
 			if (drawable > 0)
-				(void) fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
+				fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
 					drawable+1, Argnames[i]);
 			else
-				(void) fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
 			drawable++;
 			defargtype("A_DRAWABLE", drawable);
 		} else if (STRPRECMP(Arglines[i], "Font") == 0) {
 			if (font == 0)
-				(void) fprintf(FpDefines, "#define A_FONT %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_FONT %s\n", Argnames[i]);
 			font++;
 			defargtype("A_FONT", font);
 		} else if (STRPRECMP(Arglines[i], "GC") == 0) {
 			if (gc == 0)
-				(void) fprintf(FpDefines, "#define A_GC %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_GC %s\n", Argnames[i]);
 			gc++;
 			defargtype("A_GC", gc);
 		} else if (STRPRECMP(Arglines[i], "XImage") == 0) {
@@ -614,35 +614,35 @@ int 	image = 0;
 			defargtype("A_IMAGE", image);
 		} else if (STRPRECMP(Arglines[i], "Pixmap") == 0) {
 			if (pixmap == 0)
-				(void) fprintf(FpDefines, "#define A_PIXMAP %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_PIXMAP %s\n", Argnames[i]);
 			else
-				(void) fprintf(FpDefines, "#define A_PIXMAP%d %s\n", pixmap+1, Argnames[i]);
+				fprintf(FpDefines, "#define A_PIXMAP%d %s\n", pixmap+1, Argnames[i]);
 			if (drawable > 0)
-				(void) fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
+				fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
 					drawable+1, Argnames[i]);
 			else
-				(void) fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
 			drawable++;
 			defargtype("A_DRAWABLE", drawable);
 			pixmap++;
 			defargtype("A_PIXMAP", pixmap);
 		} else if (STRPRECMP(Arglines[i], "Window") == 0) {
 			if (window == 0)
-				(void) fprintf(FpDefines, "#define A_WINDOW %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_WINDOW %s\n", Argnames[i]);
 			else
-				(void) fprintf(FpDefines, "#define A_WINDOW%d %s\n", window+1, Argnames[i]);
+				fprintf(FpDefines, "#define A_WINDOW%d %s\n", window+1, Argnames[i]);
 			if (drawable > 0)
-				(void) fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
+				fprintf(FpDefines, "#define A_DRAWABLE%d %s\n",
 					drawable+1, Argnames[i]);
 			else
-				(void) fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
+				fprintf(FpDefines, "#define A_DRAWABLE %s\n", Argnames[i]);
 			drawable++;
 			defargtype("A_DRAWABLE", drawable);
 			window++;
 			defargtype("A_WINDOW", window);
 		}
 	}
-	(void) fprintf(FpDefines, "\n\n");
+	fprintf(FpDefines, "\n\n");
 }
 
 /*
@@ -680,7 +680,7 @@ char	**cpp;
 		errexit();
 	}
 
-	(void) fprintf(FpAssertion, "Assertion %s-%d.(%c)\n", State.name,
+	fprintf(FpAssertion, "Assertion %s-%d.(%c)\n", State.name,
 		State.assertion, State.category);
 
 	Testnum++;
@@ -695,7 +695,7 @@ char	**cpp;
 			State.reason = "No reason code supplied";
 		}
 
-		(void) fprintf(FpAssertion, "\nReason for omission: %s\n", State.reason);
+		fprintf(FpAssertion, "\nReason for omission: %s\n", State.reason);
 	}
 
 
@@ -737,7 +737,7 @@ char	*endl;
 			if (strcmp(tok, ".tL") == 0) {
 				break;	/* ie. skip this line altogether. */
 #if 0
-				(void) fprintf(outfp, "\n%s", prefix);
+				fprintf(outfp, "\n%s", prefix);
 				assertpos = 0;
 				inmacro = 1;
 #endif
@@ -769,10 +769,10 @@ char	*endl;
 			assertpos += strlen(tok) + 1;
 			if (assertpos > ASLENGTH && !joinpunct(*tok)) {
 				assertpos = strlen(tok);
-				(void) fprintf(outfp, "\n%s", prefix);
+				fprintf(outfp, "\n%s", prefix);
 			} else if (oldpos > 0 && needscrunch < 2 && !joinpunct(*tok))
-				(void) fputc(' ', outfp);
-			(void) fprintf(outfp, "%s", tok);
+				fputc(' ', outfp);
+			fprintf(outfp, "%s", tok);
 			if (needscrunch)
 				needscrunch++;
 		}
@@ -836,7 +836,7 @@ char	*buf;
 	}
 	FpStrategy = cretmpfile(F_STRATEGY, NULL);
 	while (newline(fp, buf) != NULL && !SECSTART(buf)) {
-		(void) fprintf(FpStrategy, "%s", buf);
+		fprintf(FpStrategy, "%s", buf);
 	}
 	return;
 
@@ -868,16 +868,16 @@ int 	indecs = 1;
 			indecs = 0;
 			setoutline();
 			if (State.xtoolkit != 0)
-				(void) fprintf(FpCode, "pid_t	pid;\n");
+				fprintf(FpCode, "pid_t	pid;\n");
 			else if (State.xcms == 0)
-				(void) fprintf(FpCode, "int 	pass = 0, fail = 0;\n");
-			(void) fprintf(FpCode, "\n 	report_purpose(%d);\n\n", State.assertion);
+				fprintf(FpCode, "int 	pass = 0, fail = 0;\n");
+			fprintf(FpCode, "\n 	report_purpose(%d);\n\n", State.assertion);
 			(void)fseek(FpAssertion, 0 , SEEK_SET);
 			while (newline(FpAssertion, buf) != NULL && !SECSTART(buf)) {
 					/*strip newlines*/
 					if (buf[strlen(buf)-1] == '\n')
 						buf[strlen(buf)-1] = 0;
-				(void) fprintf(FpCode, "	report_assertion(\"%s\");\n", buf);
+				fprintf(FpCode, "	report_assertion(\"%s\");\n", buf);
 			}
 			buf[0] = 0;
 
@@ -889,24 +889,24 @@ int 	indecs = 1;
 					/*strip newlines*/
 					if (buf[strlen(buf)-1] == '\n')
 						buf[strlen(buf)-1] = 0;
-					(void) fprintf(FpCode, "	report_strategy(\"%s\");\n", buf);
+					fprintf(FpCode, "	report_strategy(\"%s\");\n", buf);
 				}
 				buf[0] = 0;
 			}
 
 			if ((Settings.tpstartup != NULL) && (strlen(Settings.tpstartup) != 0))
-				(void) fprintf(FpCode, "\n	%s();\n", Settings.tpstartup);
+				fprintf(FpCode, "\n	%s();\n", Settings.tpstartup);
 			if ((State.xtoolkit == 0) && (State.xcms == 0))
 			{
 				if (Nargs > 2)
-					(void) fprintf(FpCode, "	setargs();\n");
+					fprintf(FpCode, "	setargs();\n");
 			}
 			if (Settings.beginfunc)
-				(void) fprintf(FpCode, "	%s();\n", Settings.beginfunc);
+				fprintf(FpCode, "	%s();\n", Settings.beginfunc);
 			if (State.xtoolkit != 0) 
 			{
-				(void) fprintf(FpCode, "	FORK(pid);\n");
-				(void) fprintf(FpCode, "	initconfig();\n\n");
+				fprintf(FpCode, "	FORK(pid);\n");
+				fprintf(FpCode, "	initconfig();\n\n");
 			}
 			NeedTpcleanup = 1;
 			Resyncline = 1;
@@ -948,14 +948,14 @@ char	*buf;
 		}
 	}
 
-	(void) fputc('\n', FpExtern);
+	fputc('\n', FpExtern);
 
 }
 
 funcstart()
 {
 
-	(void) fprintf(FpCode, "%svoid t%03d(){\n\n", (dflag)?"" : "static ",  State.assertion);
+	fprintf(FpCode, "%svoid t%03d(){\n\n", (dflag)?"" : "static ",  State.assertion);
 	NeedTpcleanup = 0;
 	Resyncline = 1;
 }
@@ -963,20 +963,20 @@ funcstart()
 funcend()
 {
 	if (NeedTpcleanup && Settings.endfunc)
-		(void) fprintf(FpCode, "\t%s();\n", Settings.endfunc);
+		fprintf(FpCode, "\t%s();\n", Settings.endfunc);
 	if (NeedTpcleanup) 
 	{
 		if (State.xtoolkit != 0) 
-			(void) fprintf(FpCode, "\n	LKROF(pid, AVSXTTIMEOUT*xt_tomultiple);\n");
+			fprintf(FpCode, "\n	LKROF(pid, AVSXTTIMEOUT*xt_tomultiple);\n");
 		if ((Settings.tpcleanup != NULL) && (strlen(Settings.tpcleanup) != 0))
-			(void) fprintf(FpCode, "\t%s();\n", Settings.tpcleanup);
+			fprintf(FpCode, "\t%s();\n", Settings.tpcleanup);
 		if ((State.xtoolkit == 0) && (State.xcms == 0))
-			(void) fprintf(FpCode, "\tpfcount(pass, fail);\n");
+			fprintf(FpCode, "\tpfcount(pass, fail);\n");
 	}
 /*
 	}
 */
-	(void) fprintf(FpCode, "}\n\n");
+	fprintf(FpCode, "}\n\n");
 }
 
 
@@ -1002,10 +1002,10 @@ int 	insertval = 0;
 
 	fputs(prefix, fp);
 	if (Settings.display)
-		(void) fprintf(fp, "startcall(%s);\n", Settings.display);
+		fprintf(fp, "startcall(%s);\n", Settings.display);
 	else
 		fputs("startcall(Dsp);\n", fp);
-	(void) fprintf(fp, "%sif (isdeleted())\n%s\treturn;\n",
+	fprintf(fp, "%sif (isdeleted())\n%s\treturn;\n",
 		prefix, prefix);
 
 	setline(fp);
@@ -1030,22 +1030,22 @@ int 	insertval = 0;
 		insertval = 1;
 		fputs("ValueReturn = ", fp);
 	}
-	(void) fprintf(fp, "%s(", State.name);
+	fprintf(fp, "%s(", State.name);
 	for (i = 2; i < Nargs; i++) {
-		(void) fprintf(fp, "%s%s", Argnames[i], (i == Nargs-1)? "": ", ");
+		fprintf(fp, "%s%s", Argnames[i], (i == Nargs-1)? "": ", ");
 	}
-	(void) fprintf(fp, ")");
+	fprintf(fp, ")");
 	cp += strlen(XCALLSYM);
 	fputs(cp, fp);
 
 	setoutline();
 
 	if (Settings.needgcflush)
-		(void) fprintf(fp, "%sgcflush(A_DISPLAY, A_GC);\n", prefix);
+		fprintf(fp, "%sgcflush(A_DISPLAY, A_GC);\n", prefix);
 	if (Settings.display)
-		(void) fprintf(fp, "%sendcall(%s);\n", prefix, Settings.display);
+		fprintf(fp, "%sendcall(%s);\n", prefix, Settings.display);
 	else
-		(void) fprintf(fp, "%sendcall(Dsp);\n", prefix);
+		fprintf(fp, "%sendcall(Dsp);\n", prefix);
 
 	/*
 	 * If we are generating code to check for the Status return, then
@@ -1054,54 +1054,54 @@ int 	insertval = 0;
 	 * on failure.  Also need to use tpcleanup if returning.
 	 */
 	if (insertstat) {
-		(void) fprintf(fp, "%sif (StatusReturn %s 0) {\n", prefix,
+		fprintf(fp, "%sif (StatusReturn %s 0) {\n", prefix,
 			(strcmp(Ictype[Testnum], "Good") == 0)? "==": "!=");
-		(void) fprintf(fp, "%s\treport(\"Status returned was %%d\", StatusReturn);\n",
+		fprintf(fp, "%s\treport(\"Status returned was %%d\", StatusReturn);\n",
 			prefix);
-		(void) fprintf(fp, "%s\tFAIL;\n", prefix);
+		fprintf(fp, "%s\tFAIL;\n", prefix);
 		if (Settings.failreturn) {
 			if (NeedTpcleanup && Settings.endfunc)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
 			if (NeedTpcleanup)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
-			(void) fprintf(fp, "%s\treturn;\n", prefix);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
+			fprintf(fp, "%s\treturn;\n", prefix);
 		}
-		(void) fprintf(fp, "%s}\n", prefix);
+		fprintf(fp, "%s}\n", prefix);
 	}
 
 	/* As above, but for a value return */
 	if (insertval && Settings.valreturn && *Settings.valreturn) {
-		(void) fprintf(fp, "%sif (ValueReturn != %s) {\n", prefix,
+		fprintf(fp, "%sif (ValueReturn != %s) {\n", prefix,
 			Settings.valreturn);
-		(void) fprintf(fp,
+		fprintf(fp,
 		  "%s\treport(\"Returned value was %%d, expecting %s\", ValueReturn);\n"
 		  , prefix, Settings.valreturn);
-		(void) fprintf(fp, "%s\tFAIL;\n", prefix);
+		fprintf(fp, "%s\tFAIL;\n", prefix);
 		if (Settings.failreturn) {
 			if (NeedTpcleanup && Settings.endfunc)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
 			if (NeedTpcleanup)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
-			(void) fprintf(fp, "%s\treturn;\n", prefix);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
+			fprintf(fp, "%s\treturn;\n", prefix);
 		}
-		(void) fprintf(fp, "%s}\n", prefix);
+		fprintf(fp, "%s}\n", prefix);
 	}
 
 	/*
 	 * If wanted check the error status.
 	 */
 	if (Settings.noerrcheck == 0) {
-		(void) fprintf(fp, "%sif (geterr() != %s) {\n", prefix, ExpectError);
-		(void) fprintf(fp, "%s\treport(\"Got %%s, Expecting %s\", errorname(geterr()));\n", prefix, ExpectError);
-		(void) fprintf(fp, "%s\tFAIL;\n", prefix);
+		fprintf(fp, "%sif (geterr() != %s) {\n", prefix, ExpectError);
+		fprintf(fp, "%s\treport(\"Got %%s, Expecting %s\", errorname(geterr()));\n", prefix, ExpectError);
+		fprintf(fp, "%s\tFAIL;\n", prefix);
 		if (Settings.failreturn) {
 			if (NeedTpcleanup && Settings.endfunc)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.endfunc);
 			if (NeedTpcleanup)
-				(void) fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
-			(void) fprintf(fp, "%s\treturn;\n", prefix);
+				fprintf(fp, "%s\t%s();\n", prefix, Settings.tpcleanup);
+			fprintf(fp, "%s\treturn;\n", prefix);
 		}
-		(void) fprintf(fp, "%s}\n", prefix);
+		fprintf(fp, "%s}\n", prefix);
 	}
 
 	/* These settings only apply for one xcall */
@@ -1120,13 +1120,13 @@ char	*buf;
 	memset(buf2, 0, sizeof(buf2));
 	mcassertion(fp, buf);
 	funcstart();
-	(void) fprintf(FpCode, "\n 	report_purpose(%d);\n\n", State.assertion);
+	fprintf(FpCode, "\n 	report_purpose(%d);\n\n", State.assertion);
 
 	(void)fseek(FpAssertion, 0 , SEEK_SET);
 	while (newline(FpAssertion, buf2)) {
 		if (buf2[strlen(buf2)-1] == '\n')
 			buf2[strlen(buf2)-1] = 0;
-		(void) fprintf(FpCode, "	report_assertion(\"%s\");\n", buf2);
+		fprintf(FpCode, "	report_assertion(\"%s\");\n", buf2);
 	}
 
 	fprintf(FpCode, "\treport_assertion(\"The assertion is descriptive or is tested elsewhere.\");\n");
@@ -1143,7 +1143,7 @@ mcincstart(buf)
 char	*buf;
 {
 	if (strcmp(buf+strlen(buf)-4, ".tmc") != 0)
-		(void) fprintf(FpCode, "/* Including from file %s */\n", buf);
+		fprintf(FpCode, "/* Including from file %s */\n", buf);
 }
 
 void
@@ -1151,7 +1151,7 @@ mcincend(buf)
 char	*buf;
 {
 	if (strcmp(buf+strlen(buf)-4, ".tmc") != 0)
-		(void) fprintf(FpCode, "/* End of included file %s */\n\n", buf);
+		fprintf(FpCode, "/* End of included file %s */\n\n", buf);
 }
 
 static void
@@ -1162,7 +1162,7 @@ static	int 	lastline;
 
 	if (pflag) {
 		if (Resyncline || lastline+1 != Lineno) {
-			(void) fprintf(fp, "#line %d \"%s\"\n",
+			fprintf(fp, "#line %d \"%s\"\n",
 				Lineno, Filename? Filename: "stdin");
 			Resyncline = 0;
 		}
@@ -1174,7 +1174,7 @@ static void
 setoutline()
 {
 	if (pflag) {
-		(void) fprintf(FpCode, ">>G\n");
+		fprintf(FpCode, ">>G\n");
 		Resyncline = 1;
 	}
 }
diff --git a/xts5/src/bin/mc/error.c b/xts5/src/bin/mc/error.c
index c7835346..dff5c7d0 100644
--- a/xts5/src/bin/mc/error.c
+++ b/xts5/src/bin/mc/error.c
@@ -175,7 +175,7 @@ static	char	*sep = " ,\t";
 
 	if (*mp == NULL) {
 		err("Bad .ER error code");
-		(void) fprintf(stderr, " (%s)\n", type);
+		fprintf(stderr, " (%s)\n", type);
 		errexit();
 	}
 
@@ -190,8 +190,8 @@ static	char	*sep = " ,\t";
 			break;
 	}
 
-	(void) strcpy(errfile, "error/");
-	(void) strcat(errfile, *(mp+1));
+	strcpy(errfile, "error/");
+	strcat(errfile, *(mp+1));
 
 	/* BadValue is a special case to be dealt with */
 	if (strncmp(type, "Value", 5) == 0) {
@@ -215,8 +215,8 @@ char	*tmpfile;
 
 	fp = cretmpfile(F_TVAL, &tmpfile);
 
-	(void) fprintf(fp, ">>ASSERTION Bad A\n");
-	(void) fprintf(fp, "When the value of\n.A %s\n", Alts[1]);
+	fprintf(fp, ">>ASSERTION Bad A\n");
+	fprintf(fp, "When the value of\n.A %s\n", Alts[1]);
 
 	i = 2;
 	if (strcmp(Alts[i], "mask") == 0) {
@@ -226,32 +226,32 @@ char	*tmpfile;
 		wasmasktype = 0;
 
 	if (wasmasktype)
-		(void) fprintf(fp, "is not a bitwise combination of\n");
+		fprintf(fp, "is not a bitwise combination of\n");
 	else
-		(void) fprintf(fp, "is other than\n");
+		fprintf(fp, "is other than\n");
 
 	for (; i < Nalts; i++) {
-		(void) fprintf(fp, ".S %s", Alts[i]);
+		fprintf(fp, ".S %s", Alts[i]);
 		if (i == Nalts-2)
-			(void) fprintf(fp, "%s", "\nor\n");
+			fprintf(fp, "%s", "\nor\n");
 		else
-			(void) fprintf(fp, "%s", " ,\n");
+			fprintf(fp, "%s", " ,\n");
 	}
 
-	(void) fprintf(fp, "then a\n.S BadValue\nerror occurs.\n");
+	fprintf(fp, "then a\n.S BadValue\nerror occurs.\n");
 
-	(void) fprintf(fp, ">>EXTERN\n\n");
-	(void) fprintf(fp, "/* Value list for use in test t%03d */\n", State.assertion+1);
-	(void) fprintf(fp, "static %s	%svallist[] = {\n",
+	fprintf(fp, ">>EXTERN\n\n");
+	fprintf(fp, "/* Value list for use in test t%03d */\n", State.assertion+1);
+	fprintf(fp, "static %s	%svallist[] = {\n",
 		wasmasktype? "unsigned long": "int ", Alts[1]);
 
 
 	for (i = (wasmasktype)? 3: 2; i < Nalts; i++) {
-		(void) fprintf(fp, "\t%s,\n", Alts[i]);
+		fprintf(fp, "\t%s,\n", Alts[i]);
 	}
 
-	(void) fprintf(fp, "};\n\n");
-	(void) fclose(fp);
+	fprintf(fp, "};\n\n");
+	fclose(fp);
 
 	includefile(tmpfile, buf);
 }
@@ -264,18 +264,18 @@ char	line[MAXLINE];
 	 * Do the define bits.
 	 */
 	line[0] = '\0';
-	(void) strcat(line, "#undef\tVALUE_ARG\n");
-	(void) sprintf(line+strlen(line), "#define\tVALUE_ARG %s\n", Alts[1]);
-	(void) strcat(line, "#undef\tVALUE_LIST\n");
-	(void) sprintf(line+strlen(line), "#define\tVALUE_LIST %svallist\n", Alts[1]);
-	(void) sprintf(line+strlen(line), "#undef NOTMEMTYPE\n");
-	(void) sprintf(line+strlen(line), "#define NOTMEMTYPE %s\n",
+	strcat(line, "#undef\tVALUE_ARG\n");
+	sprintf(line+strlen(line), "#define\tVALUE_ARG %s\n", Alts[1]);
+	strcat(line, "#undef\tVALUE_LIST\n");
+	sprintf(line+strlen(line), "#define\tVALUE_LIST %svallist\n", Alts[1]);
+	sprintf(line+strlen(line), "#undef NOTMEMTYPE\n");
+	sprintf(line+strlen(line), "#define NOTMEMTYPE %s\n",
 		(wasmasktype)? "unsigned": "");
-	(void) strcat(line, "#undef\tNOTMEMBER\n");
+	strcat(line, "#undef\tNOTMEMBER\n");
 	if (wasmasktype)
-		(void) strcat(line, "#define\tNOTMEMBER notmaskmember\n");
+		strcat(line, "#define\tNOTMEMBER notmaskmember\n");
 	else
-		(void) strcat(line, "#define\tNOTMEMBER notmember\n");
+		strcat(line, "#define\tNOTMEMBER notmember\n");
 
 	putbackline(line);
 }
@@ -294,16 +294,16 @@ char	*word;
 	*out = '\0';
 	for (i = 0; i < Nalts; i++) {
 		word = Alts[i];
-		(void) strcat(out, word);
+		strcat(out, word);
 
 		if (i < Nalts-2)
-			(void) strcat(out, ",\n.S ");
+			strcat(out, ",\n.S ");
 		if (i == Nalts-2)
-			(void) strcat(out, "\nor\n.S ");
+			strcat(out, "\nor\n.S ");
 	}
 	if (Nalts > 1)
-		(void) strcat(out, " ");
-	(void) strcat(out, ",\n");
+		strcat(out, " ");
+	strcat(out, ",\n");
 
 	return(strlen(out));
 }
diff --git a/xts5/src/bin/mc/expand.c b/xts5/src/bin/mc/expand.c
index 47aeab00..311fef0e 100644
--- a/xts5/src/bin/mc/expand.c
+++ b/xts5/src/bin/mc/expand.c
@@ -155,7 +155,7 @@ void
 mepend(buf)
 char	*buf;
 {
-	(void) fprintf(FpBanner, " */\n");
+	fprintf(FpBanner, " */\n");
 	outfile(FpBanner);
 	outfile(FpExp);
 	fclose(FpExp);
diff --git a/xts5/src/bin/mc/files.c b/xts5/src/bin/mc/files.c
index d1bdcfed..ee88a400 100644
--- a/xts5/src/bin/mc/files.c
+++ b/xts5/src/bin/mc/files.c
@@ -156,7 +156,7 @@ static	int 	firsttime = 1;
 			fp = NULL;
 	} else {
 		if ((fp = fopen(Filename, "r")) == NULL) {
-			(void) fprintf(stderr, "Could not open %s\n", Filename);
+			fprintf(stderr, "Could not open %s\n", Filename);
 			errexit();
 		}
 	}
@@ -179,7 +179,7 @@ char 	buf[BUFSIZ];
 	/*
 	 * Look for a corresponding file with name lib/mc/*.mc .
 	 */
-	(void) sprintf(buf, "mc/%s", file);
+	sprintf(buf, "mc/%s", file);
 	file = buf;
 	if (strcmp(file+strlen(file)-3, ".mc") != 0) {
 		/*
@@ -220,7 +220,7 @@ char *tmpfile;
 
 	snprintf(tmpfile, PATH_MAX, "%s.%d", file, (int)getpid());
 	if ((fp = fopen(tmpfile, "w+")) == NULL) {
-		(void) fprintf(stderr, "Could not open %s\n", tmpfile);
+		fprintf(stderr, "Could not open %s\n", tmpfile);
 		errexit();
 	}
 
@@ -251,7 +251,7 @@ extern	int 	Cmdname;
 	if (!fout) {
 		if (OutFileName) {
 			if ((fout = fopen(OutFileName, "w")) == NULL) {
-				(void) fprintf(stderr, "Could not open %s for output\n", OutFileName);
+				fprintf(stderr, "Could not open %s for output\n", OutFileName);
 				errexit();
 			}
 			ofilename = OutFileName;
@@ -272,12 +272,12 @@ extern	int 	Cmdname;
 		while (fgets(buf, BUFSIZ, fp) != NULL) {
 			olineno++;
 			if (buf[0] == '>' && buf[1] == '>' && buf[2] == 'G')
-				(void) sprintf(buf, "#line %d \"%s\"\n", olineno+1, ofilename);
+				sprintf(buf, "#line %d \"%s\"\n", olineno+1, ofilename);
 			fputs(buf, fout);
 		}
 	} else {
 		while ((n = fread(buf, sizeof(char), BUFSIZ, fp)) > 0)
-			(void) fwrite(buf, n, 1, fout);
+			fwrite(buf, n, 1, fout);
 	}
 }
 
@@ -286,7 +286,7 @@ remfiles()
 int 	i;
 
 	for (i = 0; i < Filetind; i++) {
-		(void) unlink(Filetemp[i]);
+		unlink(Filetemp[i]);
 		free(Filetemp[i]);
 		Filetemp[i] = NULL;
 	}
@@ -318,7 +318,7 @@ int 	savlineno;
 		path = mcpath(name);
 		if ((fp = fopen(path, "r")) == NULL) {
 			err("");
-			(void) fprintf(stderr, "Cannot open include file %s\n", name);
+			fprintf(stderr, "Cannot open include file %s\n", name);
 			errexit();
 		}
 	}
@@ -330,7 +330,7 @@ int 	savlineno;
 
 	dohook(name, HOOK_INCSTART);
 	dosections(fp, bp);
-	(void) fclose(fp);
+	fclose(fp);
 	dohook(name, HOOK_INCEND);
 
 	Filename = savfilename;
@@ -370,18 +370,18 @@ int 	size;
 
 	rp = getenv("TET_ROOT");
 	if (rp == NULL) {
-		(void) fprintf(stderr, "TET_ROOT not set in environment\n");
+		fprintf(stderr, "TET_ROOT not set in environment\n");
 		errexit();
 	}
 	size = strlen(rp)+strlen(MC_LOC)+strlen(file)+1;
 	path = malloc((size_t)size);
 	if (path == NULL) {
-		(void) fprintf(stderr, "Out of memory\n");
+		fprintf(stderr, "Out of memory\n");
 		errexit();
 	}
-	(void) strcpy(path, rp);
-	(void) strcat(path, MC_LOC);
-	(void) strcat(path, file);
+	strcpy(path, rp);
+	strcat(path, MC_LOC);
+	strcat(path, file);
 
 	return(path);
 }
diff --git a/xts5/src/bin/mc/gccomps.c b/xts5/src/bin/mc/gccomps.c
index 77c02c4d..75cd98cc 100644
--- a/xts5/src/bin/mc/gccomps.c
+++ b/xts5/src/bin/mc/gccomps.c
@@ -172,11 +172,11 @@ char	*cp;
 
 		if (lp == gclookup+NGCCOMP) {
 			err("");
-			(void) fprintf(stderr, "Unrecognised gc component name %s\n", cp);
+			fprintf(stderr, "Unrecognised gc component name %s\n", cp);
 			errexit();
 		}
 
-		(void) sprintf(buf, "gc/%.9s.mc\n", lp->include);
+		sprintf(buf, "gc/%.9s.mc\n", lp->include);
 		includefile(buf, buf);
 	}
 }
diff --git a/xts5/src/bin/mc/ma.c b/xts5/src/bin/mc/ma.c
index b3448bc0..8e7eec6b 100644
--- a/xts5/src/bin/mc/ma.c
+++ b/xts5/src/bin/mc/ma.c
@@ -149,7 +149,7 @@ maheader(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ".TH %s %s\n", State.name, State.chap);
+	fprintf(FpText, ".TH %s %s\n", State.name, State.chap);
 	skip(fp, buf);
 }
 
@@ -158,10 +158,10 @@ maassertion(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ".TI ");
+	fprintf(FpText, ".TI ");
 	if (State.category != CAT_NONE)
-		(void) fprintf(FpText, "%c ", (char)State.category);
-	(void) fprintf(FpText, "\\\" %s-%d\n",
+		fprintf(FpText, "%c ", (char)State.category);
+	fprintf(FpText, "\\\" %s-%d\n",
 		State.name, State.assertion);
 	echon(fp, buf, FpText);
 	if (State.category == CAT_B || State.category == CAT_D) {
@@ -175,7 +175,7 @@ madefassertion(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ".TI def \\\" %s-%d\n", State.name, State.assertion);
+	fprintf(FpText, ".TI def \\\" %s-%d\n", State.name, State.assertion);
 	echon(fp, buf, FpText);
 }
 
@@ -199,7 +199,7 @@ char	*buf;
 	if (hflag) {
 		if (sflag) {
 			FpHeader = cretmpfile(F_HEADER, NULL);
-			(void) fprintf(FpHeader, ".so head.t\n");
+			fprintf(FpHeader, ".so head.t\n");
 			outfile(FpHeader);
 		} else {
 			outcopy(F_STDHEADER);
diff --git a/xts5/src/bin/mc/main.c b/xts5/src/bin/mc/main.c
index 91e90eeb..45a502da 100644
--- a/xts5/src/bin/mc/main.c
+++ b/xts5/src/bin/mc/main.c
@@ -257,8 +257,8 @@ newcmd:
 			argv[0] = optarg;
 			goto newcmd;
 		case '?':
-			(void) fprintf(stderr, "Invalid option\n");
-			(void) fprintf(stderr, "%s\n", cip->usage);
+			fprintf(stderr, "Invalid option\n");
+			fprintf(stderr, "%s\n", cip->usage);
 			errexit();
 			break;
 		}
@@ -302,7 +302,7 @@ newcmd:
 
 		dosections(FpSource, Ibuf);
 		dodefaults(Ibuf);
-		(void) fclose(FpSource);
+		fclose(FpSource);
 
 		dohook((char*)0, HOOK_END);
 		remfiles();
@@ -375,7 +375,7 @@ char	*line;
 		err("Internal error: one line already pushed back\n");
 		errexit();
 	}
-	(void) strcpy(putbackbuf, line);
+	strcpy(putbackbuf, line);
 }
 
 /*
@@ -406,9 +406,9 @@ char	*np;
 				    State.sectype == SEC_DEFASSERT) {
 					if (cp != line)
 						*np++ = '\n';
-					(void) strcpy(np, ".F "); np += 3;
+					strcpy(np, ".F "); np += 3;
 				}
-				(void) strcpy(np, State.name); np += strlen(State.name);
+				strcpy(np, State.name); np += strlen(State.name);
 				cp += 5;/* len of xname XXX */
 				if (State.sectype == SEC_ASSERTION ||
 				    State.sectype == SEC_DEFASSERT) {
@@ -436,7 +436,7 @@ char	*np;
 		}
 	}
 	*np++ = '\0';
-	(void) strcpy(line, buf);
+	strcpy(line, buf);
 }
 
 /*
@@ -483,7 +483,7 @@ char	*bp;
 
 	bp = malloc((size_t)(strlen(s)+1));
 	if (bp)
-		(void) strcpy(bp, s);
+		strcpy(bp, s);
 
 	return(bp);
 }
diff --git a/xts5/src/bin/mc/make.c b/xts5/src/bin/mc/make.c
index 2b7d980e..1239be9a 100644
--- a/xts5/src/bin/mc/make.c
+++ b/xts5/src/bin/mc/make.c
@@ -197,84 +197,84 @@ char	*lp;
 int 	i;
 int 	linepos;
 
-	(void) fprintf(FpDefines, "SOURCES=");
+	fprintf(FpDefines, "SOURCES=");
 	linepos = strlen("SOURCES=");
 	for (i = 0; lp = getmclistitem(Sources, i); i++) {
 		linepos += strlen(lp);
 		if (linepos > CFILELINELEN) {
-			(void) fprintf(FpDefines, "\\\n\t");
+			fprintf(FpDefines, "\\\n\t");
 			linepos = 8;
 		}
-		(void) fprintf(FpDefines, "%s ", lp);
+		fprintf(FpDefines, "%s ", lp);
 		
 	}
-	(void) fprintf(FpDefines, "\n");
-	(void) fprintf(FpDefines, "CFILES=Test.c ");
+	fprintf(FpDefines, "\n");
+	fprintf(FpDefines, "CFILES=Test.c ");
 	linepos = strlen("CFILES=Test.c ");
 	for (i = 0; lp = getmclistitem(filenames, i); i++) {
 		linepos += strlen(lp);
 		if (linepos > CFILELINELEN) {
-			(void) fprintf(FpDefines, "\\\n\t");
+			fprintf(FpDefines, "\\\n\t");
 			linepos = 8;
 		}
-		(void) fprintf(FpDefines, "%s ", lp);
+		fprintf(FpDefines, "%s ", lp);
 		
 	}
-	(void) fprintf(FpDefines, "\n");
+	fprintf(FpDefines, "\n");
 
-	(void) fprintf(FpDefines, "OFILES=Test.o ");
+	fprintf(FpDefines, "OFILES=Test.o ");
 	linepos = strlen("OFILES=Test.o ");
 	for (i = 0; lp = getmclistitem(filenames, i); i++) {
 		linepos += strlen(lp);
 		if (linepos > CFILELINELEN) {
-			(void) fprintf(FpDefines, "\\\n\t");
+			fprintf(FpDefines, "\\\n\t");
 			linepos = 8;
 		}
 		/* Convert to dot-o */
 		lp[strlen(lp)-1] = 'o';
-		(void) fprintf(FpDefines, "%s ", lp);
+		fprintf(FpDefines, "%s ", lp);
 		
 	}
-	(void) fprintf(FpDefines, "\n");
+	fprintf(FpDefines, "\n");
 
 	if (Settings.macro) {
-		(void) fprintf(FpDefines, "MOFILES=MTest.o ");
+		fprintf(FpDefines, "MOFILES=MTest.o ");
 		linepos = strlen("OFILES=MTest.o ");
 		for (i = 0; lp = getmclistitem(filenames, i); i++) {
 			linepos += strlen(lp);
 			if (linepos > CFILELINELEN) {
-				(void) fprintf(FpDefines, "\\\n\t");
+				fprintf(FpDefines, "\\\n\t");
 				linepos = 8;
 			}
 			/* Convert to dot-o */
 			lp[strlen(lp)-1] = 'o';
-			(void) fprintf(FpDefines, "%s ", lp);
+			fprintf(FpDefines, "%s ", lp);
 			
 		}
-		(void) fprintf(FpDefines, "\n");
+		fprintf(FpDefines, "\n");
 	}
 
-	(void) fprintf(FpDefines, "LOFILES=link.o ");
+	fprintf(FpDefines, "LOFILES=link.o ");
 	if (Settings.macro)
 		fprintf(FpDefines, "mlink.o ");
 	linepos = strlen("LOFILES=link.o ");
 	for (i = 0; lp = getmclistitem(filenames, i); i++) {
 		linepos += strlen(lp);
 		if (linepos > CFILELINELEN) {
-			(void) fprintf(FpDefines, "\\\n\t");
+			fprintf(FpDefines, "\\\n\t");
 			linepos = 8;
 		}
 		/* Convert to dot-o */
 		lp[strlen(lp)-1] = 'o';
-		(void) fprintf(FpDefines, "%s ", lp);
+		fprintf(FpDefines, "%s ", lp);
 	}
-	(void) fprintf(FpDefines, "\n");
+	fprintf(FpDefines, "\n");
 
 
-	(void) fprintf(FpDefines, "LINKOBJ=%s.o\n", name10lc(State.name));
-	(void) fprintf(FpDefines, "LINKEXEC=%s\n", name10lc(State.name));
+	fprintf(FpDefines, "LINKOBJ=%s.o\n", name10lc(State.name));
+	fprintf(FpDefines, "LINKEXEC=%s\n", name10lc(State.name));
 
-	(void) fprintf(FpDefines, "\n\n");
+	fprintf(FpDefines, "\n\n");
 
 	/*
 	 * Now the makefile is output using the saved information and
@@ -378,8 +378,8 @@ char	*buf;
 	 * built for.
 	 */
 	if (State.name) {
-		(void) fprintf(FpDefines, "#\n# Makefile for %s\n", State.name);
-		(void) fprintf(FpDefines, "#\n\n");
+		fprintf(FpDefines, "#\n# Makefile for %s\n", State.name);
+		fprintf(FpDefines, "#\n\n");
 	}
 	skip(fp, buf);
 }
@@ -436,7 +436,7 @@ struct	mclist	*mclp;
 
 	mclp = (struct mclist *)malloc(sizeof(struct mclist)+MCLINIT*sizeof(char*));
 	if (mclp == NULL) {
-		(void) fprintf(stderr, "Out of memory\n");
+		fprintf(stderr, "Out of memory\n");
 		errexit();
 	}
 
@@ -464,7 +464,7 @@ int 	size;
 		size = sizeof(struct mclist) + (list->size-1)*sizeof(char*);
 		list = (struct mclist *)realloc((char*)list, (unsigned)size);
 		if (list == NULL) {
-			(void) fprintf(stderr, "Out of memory\n");
+			fprintf(stderr, "Out of memory\n");
 			errexit();
 		}
 	}
diff --git a/xts5/src/bin/mc/mas.c b/xts5/src/bin/mc/mas.c
index 491d93ac..3621a00b 100644
--- a/xts5/src/bin/mc/mas.c
+++ b/xts5/src/bin/mc/mas.c
@@ -153,7 +153,7 @@ masheader(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ">>TITLE %s %s\n", State.name, State.chap);
+	fprintf(FpText, ">>TITLE %s %s\n", State.name, State.chap);
 	skip(fp, buf);
 }
 
@@ -162,13 +162,13 @@ masassertion(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ">>ASSERTION ");
+	fprintf(FpText, ">>ASSERTION ");
 	if (State.category != CAT_NONE)
-		(void) fprintf(FpText, "%c ", (char)State.category);
-	(void) fprintf(FpText, "%s-%d\n",
+		fprintf(FpText, "%c ", (char)State.category);
+	fprintf(FpText, "%s-%d\n",
 		State.name, State.assertion);
 	assertfill(fp, buf, FpText, "");
-	(void) fprintf(FpText, "\n");
+	fprintf(FpText, "\n");
 }
 
 void
@@ -176,7 +176,7 @@ masstrategy(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ">>STRATEGY\n");
+	fprintf(FpText, ">>STRATEGY\n");
 	echon(fp, buf, FpText);
 }
 
@@ -185,7 +185,7 @@ masdefassertion(fp, buf)
 FILE	*fp;
 char	*buf;
 {
-	(void) fprintf(FpText, ">>ASSERTION def %s-%d\n",
+	fprintf(FpText, ">>ASSERTION def %s-%d\n",
 		State.name, State.assertion);
 	echon(fp, buf, FpText);
 }
diff --git a/xts5/src/bin/mc/sections.c b/xts5/src/bin/mc/sections.c
index 047ffbff..5633a388 100644
--- a/xts5/src/bin/mc/sections.c
+++ b/xts5/src/bin/mc/sections.c
@@ -408,7 +408,7 @@ static char	*reasons[] = {
 			newline(fp, buf);
 		} else {
 			putbackline(buf);
-			(void) strcpy(buf, line);
+			strcpy(buf, line);
 			State.defaultreq = NEED_STRAT|NEED_CODE;
 			do1sec(fp, buf, SEC_ASSERTION);
 		}
@@ -431,7 +431,7 @@ int	i;
 	State.sectype = sec;
 
 	if (sec >= NSEC) {
-		(void) fprintf(stderr, "Internal error: invalid command\n");
+		fprintf(stderr, "Internal error: invalid command\n");
 		errexit();
 	}
 
@@ -537,11 +537,11 @@ char	*buf;
 int 	hook;
 {
 	if (hook >= NHOOK) {
-		(void) fprintf(stderr, "Internal error: invalid hook\n");
+		fprintf(stderr, "Internal error: invalid hook\n");
 		errexit();
 	}
 	if (Cmdname >= NCMDS) {
-		(void) fprintf(stderr, "Internal error: command not implemented\n");
+		fprintf(stderr, "Internal error: command not implemented\n");
 		errexit();
 	}
 
@@ -619,28 +619,28 @@ char	*tmpfile;
 	switch (State.category) {
 	case CAT_B: case CAT_D:	/* Untested */
 		if (needed & NEED_STRAT) {
-			(void) fprintf(fp, ">>STRATEGY\n");
-			(void) fprintf(fp, "Report UNTESTED\n");
+			fprintf(fp, ">>STRATEGY\n");
+			fprintf(fp, "Report UNTESTED\n");
 		}
 		if (needed & NEED_CODE) {
-			(void) fprintf(fp, ">>CODE\n\n");
+			fprintf(fp, ">>CODE\n\n");
 /*
-			(void) fprintf(fp, "\treport(\"%s\");\n", State.reason);
+			fprintf(fp, "\treport(\"%s\");\n", State.reason);
 */
-			(void) fprintf(fp, "\tUNTESTED;\n");
+			fprintf(fp, "\tUNTESTED;\n");
 		}
 		break;
 	default:	/* No code written */
 		if (needed & NEED_STRAT) {
-			(void) fprintf(fp, ">>STRATEGY\n");
+			fprintf(fp, ">>STRATEGY\n");
 			if (needed & NEED_CODE)
-				(void) fprintf(fp, "Report that no code has been written for this test.\n");
+				fprintf(fp, "Report that no code has been written for this test.\n");
 			else
-				(void) fprintf(fp, "No strategy has been written for this test\n");
+				fprintf(fp, "No strategy has been written for this test\n");
 		}
 		if (needed & NEED_CODE) {
-			(void) fprintf(fp, ">>CODE\n");
-			(void) fprintf(fp, "\treport(\"No code written for this assertion.\");\n");
+			fprintf(fp, ">>CODE\n");
+			fprintf(fp, "\treport(\"No code written for this assertion.\");\n");
 		}
 		break;
 	}
diff --git a/xts5/src/bin/mc/set.c b/xts5/src/bin/mc/set.c
index 3271ff62..8a0d82a6 100644
--- a/xts5/src/bin/mc/set.c
+++ b/xts5/src/bin/mc/set.c
@@ -118,7 +118,7 @@ char	*bp;
 char	*tok;
 char	*arg1;
 
-	(void) strtok(bp, SEPS);
+	strtok(bp, SEPS);
 
 	tok = strtok((char *)0, SEPS);
 	arg1 = strtok((char *)0, SEPS);
diff --git a/xts5/src/bin/mc/shortname.c b/xts5/src/bin/mc/shortname.c
index 1ba22b1a..ed394d61 100644
--- a/xts5/src/bin/mc/shortname.c
+++ b/xts5/src/bin/mc/shortname.c
@@ -150,23 +150,23 @@ int 	n;
 
 	cp = strinstr(name, "Background");
 	if (cp) {
-		(void) strcpy(cp, "Bg");
-		(void) strcpy(cp+2, cp+10);
+		strcpy(cp, "Bg");
+		strcpy(cp+2, cp+10);
 	}
 	cp = strinstr(name, "Subwindow");
 	if (cp) {
-		(void) strcpy(cp, "Sbw");
-		(void) strcpy(cp+3, cp+9);
+		strcpy(cp, "Sbw");
+		strcpy(cp+3, cp+9);
 	}
 	cp = strinstr(name, "String");
 	if (cp) {
-		(void) strcpy(cp, "Str");
-		(void) strcpy(cp+3, cp+6);
+		strcpy(cp, "Str");
+		strcpy(cp+3, cp+6);
 	}
 	cp = strinstr(name, "Window");
 	if (cp) {
-		(void) strcpy(cp, "Wdw");
-		(void) strcpy(cp+3, cp+6);
+		strcpy(cp, "Wdw");
+		strcpy(cp+3, cp+6);
 	}
 
 	/*
diff --git a/xts5/src/lib/block.c b/xts5/src/lib/block.c
index f34ee53d..a65177ed 100644
--- a/xts5/src/lib/block.c
+++ b/xts5/src/lib/block.c
@@ -193,7 +193,7 @@ Block_Info	*info;
 	}
 	if (setjmp(jumptohere)) {
 		delete("Timeout in block routine");
-		(void) unlink(block_file);
+		unlink(block_file);
 		return(-1);
 	}
 	parent_status = 1;
@@ -201,7 +201,7 @@ Block_Info	*info;
 	/*
 	 * try removing block file just in case it still exists...
 	 */
-	(void) unlink(block_file);
+	unlink(block_file);
 	/*
 	 * check for problems in block_parent_proc
 	 */
@@ -292,7 +292,7 @@ block_child_proc()
 static void
 block_parent_proc()
 {
-	(void) signal(SIGALRM, block_alarm);
+	signal(SIGALRM, block_alarm);
 	alarm(TIMEOUT_TIME);
 	parent_status = blocker(gdisplay, ginfo);
 	alarm(0);
diff --git a/xts5/src/lib/checkarea.c b/xts5/src/lib/checkarea.c
index 0cd23a2f..5b3041ae 100644
--- a/xts5/src/lib/checkarea.c
+++ b/xts5/src/lib/checkarea.c
@@ -293,7 +293,7 @@ extern	int 	Errnum;
 	/* Making up an error file should be a subroutine.. */
 	sprintf(name, "Err%04d.err", Errnum++);
 	report("See file %s for details", name);
-	(void) unlink(name);
+	unlink(name);
 	dumpimage(bad, name, (struct area *)0);
 	dumpimage(good, name, (struct area *)0);
 
diff --git a/xts5/src/lib/delete.c b/xts5/src/lib/delete.c
index cdddc7a7..e5bcefcd 100644
--- a/xts5/src/lib/delete.c
+++ b/xts5/src/lib/delete.c
@@ -168,7 +168,7 @@ va_list args;
 
 
 	if (mess && *mess) {
-		(void) vsprintf(buf, mess, args);
+		vsprintf(buf, mess, args);
 		report(buf);
 	} else
 		report("Test deleted");
diff --git a/xts5/src/lib/events.c b/xts5/src/lib/events.c
index 99f473a6..add496a1 100644
--- a/xts5/src/lib/events.c
+++ b/xts5/src/lib/events.c
@@ -141,7 +141,7 @@ int	*dest_y_return;
 {
 	Window	window;
 
-	(void) XTranslateCoordinates(display, src_w, dest_w, src_x, src_y, dest_x_return, dest_y_return, &window);
+	XTranslateCoordinates(display, src_w, dest_w, src_x, src_y, dest_x_return, dest_y_return, &window);
 }
 
 /*
diff --git a/xts5/src/lib/ex_startup.c b/xts5/src/lib/ex_startup.c
index 58358c6c..b077ff75 100644
--- a/xts5/src/lib/ex_startup.c
+++ b/xts5/src/lib/ex_startup.c
@@ -197,8 +197,8 @@ extern	int 	io_err();
 	/*
 	 * Set up the error handlers.
 	 */
-	(void) XSetErrorHandler(unexp_err);
-	(void) XSetIOErrorHandler(io_err);
+	XSetErrorHandler(unexp_err);
+	XSetIOErrorHandler(io_err);
 
 	/*
 	 * Set up the default resources for error tests. At present
diff --git a/xts5/src/lib/makeimg.c b/xts5/src/lib/makeimg.c
index f3917e85..253b5dda 100644
--- a/xts5/src/lib/makeimg.c
+++ b/xts5/src/lib/makeimg.c
@@ -182,7 +182,7 @@ unsigned long pixel;
 
 	for (x = 0; x < ximage->width; x++)
 		for (y = 0; y < ximage->height; y++)
-			(void) XPutPixel(ximage, x, y, pixel);
+			XPutPixel(ximage, x, y, pixel);
 }
 
 /*
@@ -200,5 +200,5 @@ unsigned long pixel;
 
 	for (x = 0; x < ximage->width; x += 5)
 		for (y = 0; y < ximage->height; y++)
-			(void) XPutPixel(ximage, x, y, pixel);
+			XPutPixel(ximage, x, y, pixel);
 }
diff --git a/xts5/src/lib/pointer.c b/xts5/src/lib/pointer.c
index d48be251..ea364d87 100644
--- a/xts5/src/lib/pointer.c
+++ b/xts5/src/lib/pointer.c
@@ -150,11 +150,11 @@ int	dest_y;
 	}
 
 	/* Save initial pointer location. */
-	(void) XQueryPointer(display, DRW(display), &(ptr->oroot), &wtmp, &(ptr->ox), &(ptr->oy), &itmp, &itmp, &uitmp);
+	XQueryPointer(display, DRW(display), &(ptr->oroot), &wtmp, &(ptr->ox), &(ptr->oy), &itmp, &itmp, &uitmp);
 	/* Warp pointer to window. */
 	XWarpPointer(display, None, dest_w, 0, 0, 0, 0, dest_x, dest_y);
 	/* Get new pointer location. */
-	(void) XQueryPointer(display, DRW(display), &(ptr->nroot), &wtmp, &(ptr->nx), &(ptr->ny), &itmp, &itmp, &uitmp);
+	XQueryPointer(display, DRW(display), &(ptr->nroot), &wtmp, &(ptr->nx), &(ptr->ny), &itmp, &itmp, &uitmp);
 
 	regid(display, (union regtypes *)&ptr, REG_POINTER);
 	return(ptr);
@@ -175,7 +175,7 @@ PointerPlace	*ptr;
 	int	itmp;
 	unsigned int uitmp;
 
-	(void) XQueryPointer(display, DRW(display), &root, &wtmp, &x, &y, &itmp, &itmp, &uitmp);
+	XQueryPointer(display, DRW(display), &root, &wtmp, &x, &y, &itmp, &itmp, &uitmp);
 	if (root != ptr->nroot || x != ptr->nx || y != ptr->ny)
 		return(True);
 	else
@@ -209,7 +209,7 @@ PointerPlace	*ptr;
 	int	itmp;
 	unsigned int uitmp;
 
-	(void) XQueryPointer(display, DRW(display), &root, &wtmp, &x, &y, &itmp, &itmp, &uitmp);
+	XQueryPointer(display, DRW(display), &root, &wtmp, &x, &y, &itmp, &itmp, &uitmp);
 	ptr->nx = x;
 	ptr->ny = y;
 }
diff --git a/xts5/src/lib/report.c b/xts5/src/lib/report.c
index 43b24934..669ed905 100644
--- a/xts5/src/lib/report.c
+++ b/xts5/src/lib/report.c
@@ -174,8 +174,8 @@ va_list	args;
 	va_start(args);
 #endif
 
-	(void) strcpy(buf, "REPORT: ");
-	(void) vsprintf(buf+strlen("REPORT: "), fmt, args);
+	strcpy(buf, "REPORT: ");
+	vsprintf(buf+strlen("REPORT: "), fmt, args);
 	tet_infoline(buf);
 
 	va_end(args);
@@ -243,8 +243,8 @@ va_list	args;
 	va_start(args);
 #endif
 
-	(void) strcpy(buf, "TRACE: ");
-	(void) vsprintf(buf+strlen("TRACE: "), fmt, args);
+	strcpy(buf, "TRACE: ");
+	vsprintf(buf+strlen("TRACE: "), fmt, args);
 	tet_infoline(buf);
 
 	va_end(args);
@@ -273,8 +273,8 @@ va_list	args;
 	va_start(args);
 #endif
 
-	(void) strcpy(buf, "CHECK: ");
-	(void) vsprintf(buf+strlen("CHECK: "), fmt, args);
+	strcpy(buf, "CHECK: ");
+	vsprintf(buf+strlen("CHECK: "), fmt, args);
 	tet_infoline(buf);
 
 	va_end(args);
@@ -304,8 +304,8 @@ va_list	args;
 	va_start(args);
 #endif
 
-	(void) strcpy(buf, "DEBUG: ");
-	(void) vsprintf(buf+strlen("DEBUG: "), fmt, args);
+	strcpy(buf, "DEBUG: ");
+	vsprintf(buf+strlen("DEBUG: "), fmt, args);
 	tet_infoline(buf);
 
 	va_end(args);
@@ -340,8 +340,8 @@ va_list	args;
 
 	if (purpose_reported == 0)
 		report_purpose((tet_thistest  == 0) ? 1: tet_thistest);
-	(void) strcpy(buf, "REPORT: ");
-	(void) vsprintf(buf+strlen("REPORT: "), fmt, args);
+	strcpy(buf, "REPORT: ");
+	vsprintf(buf+strlen("REPORT: "), fmt, args);
 	tet_infoline(buf);
 
 	va_end(args);
diff --git a/xts5/src/lib/rpt.c b/xts5/src/lib/rpt.c
index d74053a3..bbf49ade 100644
--- a/xts5/src/lib/rpt.c
+++ b/xts5/src/lib/rpt.c
@@ -163,7 +163,7 @@ va_list args;
 
 
 	if (mess && *mess) {
-		(void) vsprintf(buf, mess, args);
+		vsprintf(buf, mess, args);
 		report(buf);
 	} else
 		report("Test unsupported");
@@ -196,7 +196,7 @@ va_list args;
 
 
 	if (mess && *mess) {
-		(void) vsprintf(buf, mess, args);
+		vsprintf(buf, mess, args);
 		report(buf);
 	} else
 		report("Test not in use");
@@ -229,7 +229,7 @@ va_list args;
 
 
 	if (mess && *mess) {
-		(void) vsprintf(buf, mess, args);
+		vsprintf(buf, mess, args);
 		report(buf);
 	} else
 		report("Test is untested");
diff --git a/xts5/src/lib/savimage.c b/xts5/src/lib/savimage.c
index 3a43550a..239d172f 100644
--- a/xts5/src/lib/savimage.c
+++ b/xts5/src/lib/savimage.c
@@ -184,7 +184,7 @@ unsigned long	pix1, pix2;
 						, x, y, pix1, pix2);
 					sprintf(name, "Err%04d.err", Errnum++);
 					report("See file %s for details", name);
-					(void) unlink(name);
+					unlink(name);
 					dumpimage(newim, name, (struct area *)0);
 					dumpimage(im, name, (struct area *)0);
 					XDestroyImage(newim);
diff --git a/xts5/src/lib/settimeout.c b/xts5/src/lib/settimeout.c
index 76c50706..621f7f09 100644
--- a/xts5/src/lib/settimeout.c
+++ b/xts5/src/lib/settimeout.c
@@ -147,12 +147,12 @@ struct	sigaction	act;
 #else
 	act.sa_handler = alrm_exit;
 	act.sa_flags = 0;
-	(void) sigemptyset(&act.sa_mask);
+	sigemptyset(&act.sa_mask);
 
 	if (sigaction(SIGALRM, &act, &oact) == -1)
 		delete("Could not set signal handler in settimeout");
 #endif
-	(void) alarm((unsigned long)to);
+	alarm((unsigned long)to);
 }
 
 /*
@@ -168,7 +168,7 @@ unsigned long	timeleft;
 
 	timeleft = alarm(0);
 #if OLDSIGNALS
-	(void) signal(SIGALRM, osig);
+	signal(SIGALRM, osig);
 #else
 	if (sigaction(SIGALRM, &oact, (struct sigaction *)0) == -1)
 		delete("Could not reset signal handler in cleartimeout");
diff --git a/xts5/src/lib/startup.c b/xts5/src/lib/startup.c
index 54744c5d..8f3bcb18 100644
--- a/xts5/src/lib/startup.c
+++ b/xts5/src/lib/startup.c
@@ -210,7 +210,7 @@ extern	int 	io_err();
 	 * Put out the NAME info line for the report generator.
 	 */
 /*APTEST
-	(void) sprintf(buf, "TRACE:NAME: %s", TestName);
+	sprintf(buf, "TRACE:NAME: %s", TestName);
 	tet_infoline(buf);
 */
 
@@ -258,15 +258,15 @@ extern	int 	io_err();
 	/*
 	 * Set up the error handlers.
 	 */
-	(void) XSetErrorHandler(unexp_err);
-	(void) XSetIOErrorHandler(io_err);
+	XSetErrorHandler(unexp_err);
+	XSetIOErrorHandler(io_err);
 
 	/*
 	 * Initialize the errors for the input device extension.
 	 */
 
 #ifdef INPUTEXTENSION
-	 (void) init_xinput(Dsp);
+	 init_xinput(Dsp);
 #endif
 
 	/*
diff --git a/xts5/src/lib/tpstartup.c b/xts5/src/lib/tpstartup.c
index 5fc3779f..d8e08566 100644
--- a/xts5/src/lib/tpstartup.c
+++ b/xts5/src/lib/tpstartup.c
@@ -141,8 +141,8 @@ extern  int     unexp_err();
 extern  int     io_err();
 #endif
 
-	(void) XSetErrorHandler(unexp_err);
-	(void) XSetIOErrorHandler(io_err);
+	XSetErrorHandler(unexp_err);
+	XSetIOErrorHandler(io_err);
 
 	resetdelete();
 
diff --git a/xts5/src/lib/verimage.c b/xts5/src/lib/verimage.c
index 165cb7b0..0db947e4 100644
--- a/xts5/src/lib/verimage.c
+++ b/xts5/src/lib/verimage.c
@@ -181,7 +181,7 @@ extern	int CurVinf;
 	}
 
 	ic = tet_testlist[tet_thistest-1].icref;
-	(void) sprintf(name, "a%d.dat", ic);
+	sprintf(name, "a%d.dat", ic);
 
 #ifdef GENERATE_PIXMAPS
 	if (tet_thistest != lasttest || CurVinf == lastvinf) {
@@ -207,7 +207,7 @@ extern	int CurVinf;
 	 * here.
 	 */
 	if (config.save_server_image) {
-		(void) sprintf(name, "a%d.sav", ic);
+		sprintf(name, "a%d.sav", ic);
 		dumpimage(imp, name, ap);
 		trace("Created server image file %s", name);
 	}
@@ -303,8 +303,8 @@ ok:
 	FILE	*errfp;
 
 		report("A total of %d out of %d pixels were bad", bad, good+bad);
-		(void) sprintf(errfile, "Err%04d.err", Errnum);
-		(void) unlink(errfile);
+		sprintf(errfile, "Err%04d.err", Errnum);
+		unlink(errfile);
 		dumpimage(imp, errfile, ap);
 	
 		newpos = ftell(fp);
diff --git a/xts5/src/lib/winh.c b/xts5/src/lib/winh.c
index d57ff2fa..a58f3c3e 100644
--- a/xts5/src/lib/winh.c
+++ b/xts5/src/lib/winh.c
@@ -446,7 +446,7 @@ long	winhmask;
 	Winh	*winh;
 
 	if (winh_qdel != (Winhe *) NULL)
-		(void) free_eventlist();
+		free_eventlist();
 	if (event == (XEvent *) NULL)
 		return(0);
 	if ((_eindex_ = winh_eventindex(event->type)) == -1)
@@ -874,7 +874,7 @@ Display	*display;
 	Winh	*winh;
 	Winh	*awinh;
 
-	(void) free_eventlist();
+	free_eventlist();
 	if ((winh = (Winh *) winhmalloc(sizeof(*winh), "initguardian")) == (Winh *) NULL)
 		return((Winh *) NULL);
 	winh->window = DRW(display);
@@ -987,12 +987,12 @@ void
 winh_free(winh)
 Winh *winh;
 {
-	(void) free_eventlist();
+	free_eventlist();
 	if (winh == (Winh *) NULL)
 		winh = guardian;
 	if (winh == (Winh *) NULL)
 		return;
-	(void) winh_walk(winh, 1, _winh_free);
+	winh_walk(winh, 1, _winh_free);
 	guardian = (Winh *) NULL;
 }
 
@@ -1272,7 +1272,7 @@ Winh	*winh;
 
 	if (_winh_walk_first_time_) {
 		_winh_walk_first_time_ = 0;
-		(void) fprintf(stderr, "\n\n\n");
+		fprintf(stderr, "\n\n\n");
 	}
 	if (winh == (Winh *) NULL)
 		return(-1);
@@ -1280,52 +1280,52 @@ Winh	*winh;
 	for (i = 0; i < (NELEM(in)-1) && i < winh->depth; i++)
 		in[i] = '\t';
 	in[i] = '\0';
-	(void) fprintf(stderr, "%s========================================\n",
+	fprintf(stderr, "%s========================================\n",
 		in);
 	if (winh->window == WINH_BAD)
-		(void) fprintf(stderr, "%sWindow: None",
+		fprintf(stderr, "%sWindow: None",
 			in);
 	else
-		(void) fprintf(stderr, "%sWindow: 0x%lx",
+		fprintf(stderr, "%sWindow: 0x%lx",
 			in, (unsigned long)winh->window);
 	if (winh->parent == (Winh *) NULL)
-		(void) fprintf(stderr, ", Parent: None\n");
+		fprintf(stderr, ", Parent: None\n");
 	else
-		(void) fprintf(stderr, ", Parent: 0x%lx\n", (unsigned long)winh->parent->window);
-	(void) fprintf(stderr, "%sFirstborn: %s, Children: %2d\n",
+		fprintf(stderr, ", Parent: 0x%lx\n", (unsigned long)winh->parent->window);
+	fprintf(stderr, "%sFirstborn: %s, Children: %2d\n",
 		in,
 		(FIRSTBORN(winh) ? "Yes" : "No "), winh->numchildren);
-	(void) fprintf(stderr, "%sValuemask: 0x%04lx, Winhmask: 0x%04lx\n",
+	fprintf(stderr, "%sValuemask: 0x%04lx, Winhmask: 0x%04lx\n",
 		in,
 		winh->valuemask, winh->winhmask);
 	if (winh->valuemask != 0) {
-		(void) fprintf(stderr, "%sValuemask strings:\n",
+		fprintf(stderr, "%sValuemask strings:\n",
 			in);
 		for (i = 0; i<NELEM(attrinfo); i++)
 			if (winh->valuemask & attrinfo[i].value)
-				(void) fprintf(stderr, "%s    %s\n",
+				fprintf(stderr, "%s    %s\n",
 					in,
 					attrinfo[i].name);
 	}
 	if (winh->winhmask != WINH_NOMASK) {
-		(void) fprintf(stderr, "%sWinhmask strings:\n",
+		fprintf(stderr, "%sWinhmask strings:\n",
 			in);
 		for (i = 0; i<NELEM(winhmaskinfo); i++)
 			if (winh->winhmask & winhmaskinfo[i].value)
-				(void) fprintf(stderr, "%s    %s\n",
+				fprintf(stderr, "%s    %s\n",
 					in,
 					winhmaskinfo[i].name);
 	}
-	(void) fprintf(stderr, "%sClients: %s, Expected: %s, Delivered: %s\n",
+	fprintf(stderr, "%sClients: %s, Expected: %s, Delivered: %s\n",
 		in,
 		((winh->clients == (Winhc *) NULL) ? "No " : "Yes"),
 		((winh->expected == (Winhe *) NULL) ? "No " : "Yes"),
 		((winh->delivered == (Winhe *) NULL) ? "No " : "Yes"));
-	(void) fprintf(stderr, "%sDepth: %2d, Screen: %2d\n",
+	fprintf(stderr, "%sDepth: %2d, Screen: %2d\n",
 		in,
 		winh->depth, winh->screen);
 	if (!(winh->winhmask & WINH_IGNORE_GEOMETRY)) {
-		(void) fprintf(stderr, "%s%dx%d (%d,%d) border width: %d\n",
+		fprintf(stderr, "%s%dx%d (%d,%d) border width: %d\n",
 			in,
 			winh->winhg.area.width, winh->winhg.area.height,
 			winh->winhg.area.x, winh->winhg.area.y,
diff --git a/xts5/src/libXR5/r5startup.c b/xts5/src/libXR5/r5startup.c
index 49ba7676..50ea36e7 100644
--- a/xts5/src/libXR5/r5startup.c
+++ b/xts5/src/libXR5/r5startup.c
@@ -207,7 +207,7 @@ extern	int 	io_err();
 	 * Put out the NAME info line for the report generator.
 	 */
 /*APTEST
-	(void) sprintf(buf, "TRACE:NAME: %s", TestName);
+	sprintf(buf, "TRACE:NAME: %s", TestName);
 	tet_infoline(buf);
 */
 
@@ -256,15 +256,15 @@ extern	int 	io_err();
 	/*
 	 * Set up the error handlers.
 	 */
-	(void) XSetErrorHandler(unexp_err);
-	(void) XSetIOErrorHandler(io_err);
+	XSetErrorHandler(unexp_err);
+	XSetIOErrorHandler(io_err);
 
 	/*
 	 * Initialize the errors for the input device extension.
 	 */
 
 #ifdef INPUTEXTENSION
-	 (void) init_xinput(Dsp);
+	 init_xinput(Dsp);
 #endif
 
 	/*
diff --git a/xts5/src/libXtTest/AvsForm.c b/xts5/src/libXtTest/AvsForm.c
index bd508b26..40d63ec7 100644
--- a/xts5/src/libXtTest/AvsForm.c
+++ b/xts5/src/libXtTest/AvsForm.c
@@ -341,7 +341,7 @@ Dimension *ret_width, *ret_height;
     result = XtMakeGeometryRequest(w, &request, &return_request);
     if (result == XtGeometryAlmost) {
 	request = return_request;
-	(void) XtMakeGeometryRequest(w, &request, &return_request);
+	XtMakeGeometryRequest(w, &request, &return_request);
 	always_resize_children = FALSE;
     }
     else
diff --git a/xts5/src/libXtTest/AvsForm2.c b/xts5/src/libXtTest/AvsForm2.c
index ccb73a89..b5820a19 100644
--- a/xts5/src/libXtTest/AvsForm2.c
+++ b/xts5/src/libXtTest/AvsForm2.c
@@ -310,7 +310,7 @@ Dimension *ret_width, *ret_height;
     result = XtMakeGeometryRequest(w, &request, &return_request);
     if (result == XtGeometryAlmost) {
 	request = return_request;
-	(void) XtMakeGeometryRequest(w, &request, &return_request);
+	XtMakeGeometryRequest(w, &request, &return_request);
 	always_resize_children = FALSE;
     }
     else
diff --git a/xts5/src/libXtTest/AvsForm3.c b/xts5/src/libXtTest/AvsForm3.c
index 2af7875b..41d0af91 100644
--- a/xts5/src/libXtTest/AvsForm3.c
+++ b/xts5/src/libXtTest/AvsForm3.c
@@ -303,7 +303,7 @@ Dimension *ret_width, *ret_height;
     result = XtMakeGeometryRequest(w, &request, &return_request);
     if (result == XtGeometryAlmost) {
 	request = return_request;
-	(void) XtMakeGeometryRequest(w, &request, &return_request);
+	XtMakeGeometryRequest(w, &request, &return_request);
 	always_resize_children = FALSE;
     }
     else
diff --git a/xts5/src/libXtTest/avs_hier.c b/xts5/src/libXtTest/avs_hier.c
index 0c1f85c9..358a0032 100644
--- a/xts5/src/libXtTest/avs_hier.c
+++ b/xts5/src/libXtTest/avs_hier.c
@@ -111,7 +111,7 @@ char *stitle, *slabel;
 	trace("Create boxw2 widget in panedw widget");
 	boxw2 = (Widget) CreateBoxWidget(panedw);
 	trace("Set the height and width of boxw2 widget");
-	(void) ConfigureDimension(topLevel, boxw2);
+	ConfigureDimension(topLevel, boxw2);
 	return topLevel;
 }
 
@@ -152,7 +152,7 @@ char *stitle, *slabel;
 	trace("Create boxw2 widget in panedw widget");
 	boxw2 = (Widget) CreateBoxWidget(panedw);
 	trace("Set the height and width of boxw2 widget");
-	(void) ConfigureDimension(topLevel, boxw2);
+	ConfigureDimension(topLevel, boxw2);
 	return topLevel;
 }
 
@@ -196,6 +196,6 @@ int	argcount;
 	trace("Create boxw2 widget in panedw widget");
 	boxw2 = (Widget) CreateBoxWidget(panedw);
 	trace("Set the height and width of boxw2 widget");
-	(void) ConfigureDimension(topLevel, boxw2);
+	ConfigureDimension(topLevel, boxw2);
 	return topLevel;
 }
diff --git a/xts5/src/libXtTest/avs_hierd.c b/xts5/src/libXtTest/avs_hierd.c
index 9ef70849..0f6d607d 100644
--- a/xts5/src/libXtTest/avs_hierd.c
+++ b/xts5/src/libXtTest/avs_hierd.c
@@ -115,6 +115,6 @@ char *stitle, *slabel;
 	trace("Create boxw2 widget in panedw widget");
 	boxw2 = (Widget) CreateBoxWidget(panedw);
 	trace("Set the height and width of boxw2 widget");
-	(void) ConfigureDimension(topLevel, boxw2);
+	ConfigureDimension(topLevel, boxw2);
 	return topLevel;
 }
diff --git a/xts5/src/libXtTest/box.c b/xts5/src/libXtTest/box.c
index 3613b439..6383e593 100644
--- a/xts5/src/libXtTest/box.c
+++ b/xts5/src/libXtTest/box.c
@@ -474,7 +474,7 @@ static Boolean TryNewLayout(bbw)
 		     * almost.
 		     *
 		     */
-		    (void) XtMakeResizeRequest( (Widget)bbw,
+		    XtMakeResizeRequest( (Widget)bbw,
 				       proposed_width, proposed_height,
 				       &proposed_width, &proposed_height);
 		    return(TRUE);
@@ -575,7 +575,7 @@ static void ChangeManaged(w)
     Widget w;
 {
     /* Reconfigure the box */
-    (void) TryNewLayout((BoxWidget)w);
+    TryNewLayout((BoxWidget)w);
     Resize(w);
 }
 
diff --git a/xts5/src/libXtTest/errlook.c b/xts5/src/libXtTest/errlook.c
index 888462e2..613dfb61 100644
--- a/xts5/src/libXtTest/errlook.c
+++ b/xts5/src/libXtTest/errlook.c
@@ -323,10 +323,10 @@ int num;
 
 	for(i=0; i<NERRS; i++) {
 		if(errz[i].err == num) {
-			(void) sprintf(foo, "%d(%s)", num, errz[i].errname);
+			sprintf(foo, "%d(%s)", num, errz[i].errname);
 			return foo;
 		}
 	}
-	(void) sprintf(foo, "%d(error definition not known)", num);
+	sprintf(foo, "%d(error definition not known)", num);
 	return foo;
 }
diff --git a/xts5/src/libXtTest/event.c b/xts5/src/libXtTest/event.c
index 4764a9b7..07b5d2dd 100644
--- a/xts5/src/libXtTest/event.c
+++ b/xts5/src/libXtTest/event.c
@@ -115,7 +115,7 @@ void avs_free_sem()
 	vsw_debug_enter("libXtTest/event.c:avs_free_sem()",0);
 
 	if(semid != -1) {
-		(void) semctl(semid, 0, IPC_RMID, NULL);
+		semctl(semid, 0, IPC_RMID, NULL);
 		semid = -1;
 	}
 
@@ -183,7 +183,7 @@ int t;
 			return -1;
 		}
 #endif
-		(void) alarm((unsigned int)t);
+		alarm((unsigned int)t);
 	}
 
 	s2 = semop(semid, &mysembuf, 1);
diff --git a/xts5/src/libXtTest/pshpop.c b/xts5/src/libXtTest/pshpop.c
index 473c0e05..8051f61e 100644
--- a/xts5/src/libXtTest/pshpop.c
+++ b/xts5/src/libXtTest/pshpop.c
@@ -162,7 +162,7 @@ void pop_stdout()
 		return;
 	}
 
-	(void) fflush(stdout);
+	fflush(stdout);
 	if (dup2(Dup_stdout,fileno(stdout)) == -1) {
 		sprintf(ebuf, "ERROR: pop_stdout: could not restore stdout");
 		tet_infoline(ebuf);
@@ -237,7 +237,7 @@ void pop_stderr()
 		return;
 	}
 
-	(void) fflush(stderr);
+	fflush(stderr);
 	if (dup2(Dup_stderr,fileno(stderr)) == -1) {
 		sprintf(ebuf, "ERROR: pop_stderr: could not restore stderr");
 		tet_infoline(ebuf);
@@ -305,7 +305,7 @@ int restore_from_devnull()
 		return -1;
 	}
 
-	(void) fflush(stdout);
+	fflush(stdout);
 	if (dup2(Dup_stdout,fileno(stdout)) == -1) {
 		sprintf(ebuf, "ERROR: restore_from_devnull: could not restore stdout");
 		tet_infoline(ebuf);
@@ -323,7 +323,7 @@ int restore_from_devnull()
 		return -1;
 	}
 
-	(void) fflush(stderr);
+	fflush(stderr);
 	if (dup2(Dup_stderr,fileno(stderr)) == -1) {
 		sprintf(ebuf, "ERROR: restore_from_devnull: could not restore stderr");
 		tet_infoline(ebuf);
diff --git a/xts5/src/libXtTest/waitfor.c b/xts5/src/libXtTest/waitfor.c
index 2f0d36cd..2667ac4e 100644
--- a/xts5/src/libXtTest/waitfor.c
+++ b/xts5/src/libXtTest/waitfor.c
@@ -110,11 +110,11 @@ int	timeout;
 	SIGNAL_RET(SIGALRM, SIG_DFL);
 
 	if (got_sigalrm) {
-		(void) kill(pid, SIGKILL);
+		kill(pid, SIGKILL);
 
 		sleep(2);
 
-		(void) waitpid(pid, &child, WNOHANG);
+		waitpid(pid, &child, WNOHANG);
 		sprintf(ebuf, "ERROR: wait_for: Timed-out waiting for child to exit.");
 		tet_infoline(ebuf);
 		tet_result(TET_FAIL);
diff --git a/xts5/src/libXtaw/Box.c b/xts5/src/libXtaw/Box.c
index f48082ee..feecbc3a 100644
--- a/xts5/src/libXtaw/Box.c
+++ b/xts5/src/libXtaw/Box.c
@@ -488,7 +488,7 @@ static Boolean TryNewLayout(bbw)
 		     * almost.
 		     *
 		     */
-		    (void) XtMakeResizeRequest( (Widget)bbw,
+		    XtMakeResizeRequest( (Widget)bbw,
 				       proposed_width, proposed_height,
 				       &proposed_width, &proposed_height);
 		    return(TRUE);
@@ -589,7 +589,7 @@ static void ChangeManaged(w)
     Widget w;
 {
     /* Reconfigure the box */
-    (void) TryNewLayout((BoxWidget)w);
+    TryNewLayout((BoxWidget)w);
     Resize(w);
 }
 
diff --git a/xts5/src/libXtaw/Form.c b/xts5/src/libXtaw/Form.c
index 17855a7a..fd88f909 100644
--- a/xts5/src/libXtaw/Form.c
+++ b/xts5/src/libXtaw/Form.c
@@ -343,7 +343,7 @@ Dimension *ret_width, *ret_height;
     result = XtMakeGeometryRequest(w, &request, &return_request);
     if (result == XtGeometryAlmost) {
 	request = return_request;
-	(void) XtMakeGeometryRequest(w, &request, &return_request);
+	XtMakeGeometryRequest(w, &request, &return_request);
 	always_resize_children = FALSE;
     }
     else
diff --git a/xts5/src/libXtaw/Paned.c b/xts5/src/libXtaw/Paned.c
index 8763151c..4c2f78ed 100644
--- a/xts5/src/libXtaw/Paned.c
+++ b/xts5/src/libXtaw/Paned.c
@@ -590,7 +590,7 @@ Direction dir;
 	    else
 	        AssignMin(pane->size, start_size);
 
-	    if (pane->size == start_size) (void) PopPaneStack(pw);
+	    if (pane->size == start_size) PopPaneStack(pw);
 	}
 	else if (rule3_ok) {
 	    if (shrink) {
diff --git a/xts5/src/libXtaw/Viewport.c b/xts5/src/libXtaw/Viewport.c
index 88457369..22ac4166 100644
--- a/xts5/src/libXtaw/Viewport.c
+++ b/xts5/src/libXtaw/Viewport.c
@@ -277,9 +277,9 @@ static void Initialize(request, new)
         return;		 /* If we are not forcing the bars then we are done. */
 
     if (w->viewport.allowhoriz) 
-      (void) CreateScrollbar(w, True);
+      CreateScrollbar(w, True);
     if (w->viewport.allowvert) 
-      (void) CreateScrollbar(w, False);
+      CreateScrollbar(w, False);
 
     h_bar = w->viewport.horiz_bar;
     v_bar = w->viewport.vert_bar;
@@ -564,7 +564,7 @@ static void ComputeLayout(widget, query, destroy_scrollbars)
 	do { /* while intended != prev  */
 
 	    if (query) {
-	        (void) XtQueryGeometry( child, &intended, &preferred );
+	        XtQueryGeometry( child, &intended, &preferred );
 		if ( !(preferred.request_mode & CWWidth) )
 		    preferred.width = intended.width;
 		if ( !(preferred.request_mode & CWHeight) )
diff --git a/xts5/src/libXtmu/CloseHook.c b/xts5/src/libXtmu/CloseHook.c
index 969cf14a..907a0e37 100644
--- a/xts5/src/libXtmu/CloseHook.c
+++ b/xts5/src/libXtmu/CloseHook.c
@@ -352,7 +352,7 @@ static Bool _MakeExtension (dpy, extensionp)
     codes = XAddExtension (dpy);
     if (!codes) return False;
 
-    (void) XESetCloseDisplay (dpy, codes->extension, _DoCallbacks);
+    XESetCloseDisplay (dpy, codes->extension, _DoCallbacks);
 
     *extensionp = codes->extension;
     return True;
diff --git a/xts5/src/libXtmu/DisplayQue.c b/xts5/src/libXtmu/DisplayQue.c
index e87255be..50c22113 100644
--- a/xts5/src/libXtmu/DisplayQue.c
+++ b/xts5/src/libXtmu/DisplayQue.c
@@ -98,8 +98,8 @@ SOFTWARE.
 
 static int _DQCloseDisplay();
 
-#define CallCloseCallback(q,e) (void) (*((q)->closefunc)) ((q), (e))
-#define CallFreeCallback(q) (void) (*((q)->freefunc)) ((q))
+#define CallCloseCallback(q,e) (*((q)->closefunc)) ((q), (e))
+#define CallFreeCallback(q) (*((q)->freefunc)) ((q))
 
 /*
  * XmuDQCreate - create a display queue
@@ -215,7 +215,7 @@ Bool XmuDQRemoveDisplay (q, dpy)
 	      q->tail = e->prev;	/* if at tail, then bump tail */
 	    else
 	      e->next->prev = e->prev;	/* else splice out */
-	    (void) XmuRemoveCloseDisplayHook (dpy, e->closehook,
+	    XmuRemoveCloseDisplayHook (dpy, e->closehook,
 					      _DQCloseDisplay, (caddr_t) q);
 	    free ((char *) e);
 	    q->nentries--;
@@ -244,7 +244,7 @@ static int _DQCloseDisplay (dpy, arg)
     for (e = q->head; e; e = e->next) {
 	if (e->display == dpy) {
 	    if (q->closefunc) CallCloseCallback (q, e);
-	    (void) XmuDQRemoveDisplay (q, dpy);
+	    XmuDQRemoveDisplay (q, dpy);
 	    if (q->nentries == 0 && q->freefunc) CallFreeCallback (q);
 	    return 1;
 	}
diff --git a/xts5/src/libXtmu/LocBitmap.c b/xts5/src/libXtmu/LocBitmap.c
index 55abbd66..5d57ea98 100644
--- a/xts5/src/libXtmu/LocBitmap.c
+++ b/xts5/src/libXtmu/LocBitmap.c
@@ -189,7 +189,7 @@ Pixmap XmuLocatePixmapFile (screen, name, fore, back, depth,
 	    xrm_class[1] = NULLQUARK;
 	    if (!XrmGetDatabase(dpy)) {
 		/* what a hack; need to initialize it */
-		(void) XGetDefault (dpy, "", "");
+		XGetDefault (dpy, "", "");
 	    }
 	    if (XrmQGetResource (XrmGetDatabase(dpy), xrm_name, xrm_class, 
 				 &rep_type, &value) &&
diff --git a/xts5/src/libproto/ClientMng.c b/xts5/src/libproto/ClientMng.c
index 833e418b..c22afcf2 100644
--- a/xts5/src/libproto/ClientMng.c
+++ b/xts5/src/libproto/ClientMng.c
@@ -607,7 +607,7 @@ int	cl; /* client number */
     vendorlen = u.setup -> nbytesVendor;
     u.setup += 1;		/* can't touch information in XConnSetup
 				   anymore.. */
-    (void) strncpy (dpy -> vendor, u.vendor, vendorlen);
+    strncpy (dpy -> vendor, u.vendor, vendorlen);
     u.vendor += (vendorlen + 3) & ~3;
 /*
  * Now iterate down setup information.....
@@ -727,7 +727,7 @@ int	cl; /* client number */
 	OutOfMemory (dpy, setup);
 	return (NULL);
     }
-    (void) strcpy (dpy -> display_name, displaybuf);
+    strcpy (dpy -> display_name, displaybuf);
 
 /* Set up the output buffers. */
     if ((dpy -> bufptr = dpy -> buffer = (char *) Xstmalloc (OBUFSIZE)) == NULL) {
@@ -840,7 +840,7 @@ register    XstDisplay * dpy;
 	free (dpy -> xdefaults);
 
 
-    (void) free ((char *) dpy);
+    free ((char *) dpy);
 }
 
 static
@@ -872,5 +872,5 @@ int client;
 	XstFreeDisplayStructure(dpy);
 
 	if (tmpfd != -1)
-		(void) close(tmpfd);
+		close(tmpfd);
 }
diff --git a/xts5/src/libproto/ConnDis.c b/xts5/src/libproto/ConnDis.c
index 8d1513b5..9cc0dd8c 100644
--- a/xts5/src/libproto/ConnDis.c
+++ b/xts5/src/libproto/ConnDis.c
@@ -700,7 +700,7 @@ void XSetAuthorization (name, namelen, data, datalen)
     if (datalen > 0)  {
 	tmpdata = Xmalloc ((unsigned) datalen);
 	if (!tmpdata) {
-	    if (tmpname) (void) Xfree (tmpname);
+	    if (tmpname) Xfree (tmpname);
 	    return;
 	}
 	memcpy (tmpdata, data, datalen);
@@ -1054,7 +1054,7 @@ GetAuthorization(
 	auth_data = (unsigned char *) xauth_data;
     } else {
 	char dpynumbuf[40];		/* big enough to hold 2^64 and more */
-	(void) sprintf (dpynumbuf, "%d", idisplay);
+	sprintf (dpynumbuf, "%d", idisplay);
 
 	authptr = XauGetBestAuthByAddr ((unsigned short) family,
 				    (unsigned short) saddrlen,
diff --git a/xts5/src/libproto/Expect.c b/xts5/src/libproto/Expect.c
index dff5bc02..6c738fad 100644
--- a/xts5/src/libproto/Expect.c
+++ b/xts5/src/libproto/Expect.c
@@ -570,7 +570,7 @@ unsigned long   size;
 	    continue;
 	}
 	else {
-		(void) strcpy (emsg, strerror(errno));
+		strcpy (emsg, strerror(errno));
 	    Log_Msg ("Expect: wanted %s, got SYSTEM ERROR - %s\n", wanted, emsg);
 	    Finish (client);
 	}
diff --git a/xts5/src/libproto/TestSup.c b/xts5/src/libproto/TestSup.c
index 51a07e98..42ae7b20 100644
--- a/xts5/src/libproto/TestSup.c
+++ b/xts5/src/libproto/TestSup.c
@@ -169,7 +169,7 @@ Map_a_Window(client, win)	/* use when no expose events are expected */
         req->id = win;
 	Send_Req(client, (xReq *) req);
         Log_Trace("client %d MapWindow request on window %d\n", client, win);
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
         Free_Req(req);
 }
 
@@ -194,7 +194,7 @@ Unmap_Window(client, win)
 		/* do any event checking here */
 		Free_Event(ev);
 	}
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
         Free_Req(req);
 }
 
@@ -209,7 +209,7 @@ Unmap_a_Window(client, win)
         req->id = win;
 	Send_Req(client, (xReq *) req);
         Log_Trace("client %d UnmapWindow request on window %d\n", client, win);
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
         Free_Req(req);
 }
 
@@ -244,6 +244,6 @@ Destroy_Window(client, win)
         req->id = win;
 	Send_Req(client, (xReq *) req);
         Log_Trace("client %d DestroyWindow request on window %d\n", client, win);
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
         Free_Req(req);
 }
diff --git a/xts5/src/libproto/XlibNoXtst.c b/xts5/src/libproto/XlibNoXtst.c
index a5314a08..8f408dcc 100644
--- a/xts5/src/libproto/XlibNoXtst.c
+++ b/xts5/src/libproto/XlibNoXtst.c
@@ -241,7 +241,7 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
 	 * NOTE - if DECnet is to be used, the display name is formatted
 	 * as "host::number"
 	 */
-	(void) strncpy(displaybuf, display_name, sizeof(displaybuf));
+	strncpy(displaybuf, display_name, sizeof(displaybuf));
 	if ((display_ptr = SearchString(displaybuf,':')) == (char *)NULL) 
 		return (-1);
 #ifdef DNETCONN
@@ -304,13 +304,13 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
 	if (displaybuf[0] == '\0')
 #ifdef DNETCONN
 	    if (dnet) 
-		(void) strcpy (displaybuf, "0");
+		strcpy (displaybuf, "0");
             else
 #endif
 #ifdef UNIXCONN
 		;	/* Do nothing if UNIX DOMAIN. Will be handled below. */
 #else
-		(void) gethostname (displaybuf, sizeof(displaybuf));
+		gethostname (displaybuf, sizeof(displaybuf));
 #endif
 
 #ifdef DNETCONN
@@ -333,7 +333,7 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
 		(strcmp("unix", displaybuf) == 0)) {
 		/* Connect locally using Unix domain. */
 		unaddr.sun_family = AF_UNIX;
-		(void) strcpy(unaddr.sun_path, X_UNIX_PATH);
+		strcpy(unaddr.sun_path, X_UNIX_PATH);
 		strcat(unaddr.sun_path, display_ptr);
 		addr = (struct sockaddr *) &unaddr;
 		addrlen = strlen(unaddr.sun_path) + 2;
@@ -389,7 +389,7 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
  
 
 	    if (connect(fd, addr, addrlen) == -1) {
-		(void) close (fd);
+		close (fd);
 		return(-1); 	    /* errno set by system call. */
 	    }
 #ifdef FIOSNBIO
@@ -398,7 +398,7 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
 		    ioctl (fd, FIOSNBIO, &arg);
 		}
 #else
-		(void) fcntl (fd, F_SETFL, FNDELAY);
+		fcntl (fd, F_SETFL, FNDELAY);
 #endif /* FIOSNBIO */
 
         }
@@ -418,7 +418,7 @@ int XstConnectDisplay (display_name, expanded_name, screen_num,
 	while (*numbuf_ptr != '\0')
 	    *(display_ptr++) = *(numbuf_ptr++);
 	*display_ptr = '\0';
-	(void) strcpy(expanded_name, displaybuf);
+	strcpy(expanded_name, displaybuf);
 	return(fd);
 }
 
@@ -526,7 +526,7 @@ XstSendClientPrefix (dpy, client, auth_proto, auth_string, needswap)
 	BPRINTF2 ("\tTotal OpenDisplay message length = %d bytes\n", bytes);
 	BPRINTF2 ("\t\ton fd %d\n", dpy->fd);
 	BPRINTF2 ("\t\t%d bytes used of buffer\n", bptr - buffer);
-	(void) WriteToServer(dpy->fd, buffer, bytes);
+	WriteToServer(dpy->fd, buffer, bytes);
 	return;
 }
 
diff --git a/xts5/src/libproto/XlibXtst.c b/xts5/src/libproto/XlibXtst.c
index d625c786..cc07984c 100644
--- a/xts5/src/libproto/XlibXtst.c
+++ b/xts5/src/libproto/XlibXtst.c
@@ -366,7 +366,7 @@ void XstSendClientPrefix (dpy, client, auth_proto, auth_string, needswap)
 	BPRINTF2 ("\tTotal OpenDisplay message length = %d bytes\n", bytes);
 	BPRINTF2 ("\t\ton fd %d\n", dpy->fd);
 	BPRINTF2 ("\t\t%d bytes used of buffer\n", bptr - buffer);
-	(void) WriteToServer(dpy->fd, buffer, bytes);
+	WriteToServer(dpy->fd, buffer, bytes);
 	return;
 }
 
@@ -707,7 +707,7 @@ int     needswap;
     BPRINTF2 ("\t\ton fd %d\n", dpy->fd);
     BPRINTF2 ("\t\t%d bytes used of buffer\n", bptr - buffer);
     dpy->request++; /* increment sequence counter */
-    (void) WriteToServer(dpy->fd, buffer, bytes);
+    WriteToServer(dpy->fd, buffer, bytes);
     if (Get_Req_Type(client) == OPEN_DISPLAY_REQUEST_TYPE) {
 	if (Get_Test_Type(client) == OPEN_DISPLAY) {
 		Log_Msg ("INTERNAL ERROR: should not be getting QueryExtensionReply with TestType == OPEN_DISPLAY.");
@@ -765,7 +765,7 @@ int     needswap;
 	BPRINTF2 ("\t\ton fd %d\n", dpy->fd);
 	BPRINTF2 ("\t\t%d bytes used of buffer\n", bptr - buffer);
 	dpy->request++; /* increment sequence counter */
-	(void) WriteToServer(dpy->fd, buffer, bytes);
+	WriteToServer(dpy->fd, buffer, bytes);
 
 	/* time_proc already set */
 	Set_Timer (CONNECT_TIMER_ID, Xst_timeout_value, time_proc);
diff --git a/xts5/src/libproto/XstIO.c b/xts5/src/libproto/XstIO.c
index e538abcf..05118188 100644
--- a/xts5/src/libproto/XstIO.c
+++ b/xts5/src/libproto/XstIO.c
@@ -249,7 +249,7 @@ int incperror;	/* include system error info */
     char emsg[132];
 
     if (incperror)
-	(void) strcpy(emsg,strerror(errno));
+	strcpy(emsg,strerror(errno));
     else {
 	emsg[0]='\0';
     }
diff --git a/xts5/src/libproto/delete.c b/xts5/src/libproto/delete.c
index 51876e31..e5e55b4c 100644
--- a/xts5/src/libproto/delete.c
+++ b/xts5/src/libproto/delete.c
@@ -173,7 +173,7 @@ va_list args;
 	Xst_delete_count++;
 
 	if (mess && *mess) {
-		(void) vsprintf(buf, mess, args);
+		vsprintf(buf, mess, args);
 		report(buf);
 	} else
 		report("Test deleted");
diff --git a/xts5/src/libproto/startup.c b/xts5/src/libproto/startup.c
index 0718d5cb..8a2bb347 100644
--- a/xts5/src/libproto/startup.c
+++ b/xts5/src/libproto/startup.c
@@ -191,7 +191,7 @@ extern	int	io_err(),	unexp_err();
 	 * Put out the NAME info line for the report generator.
 	 */
 /* VSW5 does not need this
-        (void) sprintf(buf, "TRACE:NAME: %s", TestName);
+        sprintf(buf, "TRACE:NAME: %s", TestName);
         tet_infoline(buf);
 */
 
@@ -215,9 +215,9 @@ extern	int	io_err(),	unexp_err();
 	 * opening a connection here is to prevent further server resets
 	 * between test purposes.
 	 */
-	(void) XSetErrorHandler(unexp_err); /* unexp_err() can rely
+	XSetErrorHandler(unexp_err); /* unexp_err() can rely
 				on Dsp as not called unless set */
-	(void) XSetIOErrorHandler(io_err); /* io_err() mustn't & doesn't.... */
+	XSetIOErrorHandler(io_err); /* io_err() mustn't & doesn't.... */
 	Dsp = XOpenDisplay(disp);
 
 	if (Dsp == (Display *)0) {
@@ -247,7 +247,7 @@ protocleanup()
 		/* At present this causes needless problems... */
 #ifndef GENERATE_PIXMAPS
 		/* about to exit anyway... */
-		(void) close(ConnectionNumber(Dsp));
+		close(ConnectionNumber(Dsp));
 #endif
 	}
 }
diff --git a/xts5/src/libproto/tpstartup.c b/xts5/src/libproto/tpstartup.c
index 7fd6f92e..4fd6b3b6 100644
--- a/xts5/src/libproto/tpstartup.c
+++ b/xts5/src/libproto/tpstartup.c
@@ -231,7 +231,7 @@ int client;
 	}  else  {
 		Log_Trace("client %d received startup GetFontPath reply\n", client);
 	}
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
 	Free_Req(req);
 
 	return put_in_commas(rep);
@@ -283,7 +283,7 @@ char *prevpath;
 
 	Send_Req(client, (xReq *) req);
 	Log_Trace("client %d sent startup SetFontPath request\n", client);
-	(void) Expect_Nothing(client);
+	Expect_Nothing(client);
 
 	Free_Req(req);
 }
diff --git a/xts5/src/xim/linklocale.c b/xts5/src/xim/linklocale.c
index 1debcf11..5b2fd728 100644
--- a/xts5/src/xim/linklocale.c
+++ b/xts5/src/xim/linklocale.c
@@ -154,8 +154,8 @@ char buf[BUF_LEN];
 		return(True);
 
    ic = tet_testlist[tet_thistest-1].icref;
-   (void) sprintf(name1, "a%d.%s.dat", ic, plocale);
-   (void) sprintf(name2, "a%d.dat", ic);
+   sprintf(name1, "a%d.%s.dat", ic, plocale);
+   sprintf(name2, "a%d.dat", ic);
 
 	fp1 = fopen(name1, "r");
 	if (fp1 == NULL)
@@ -189,7 +189,7 @@ char name[128];
 	if(config.debug_no_pixcheck) return;
 
    ic = tet_testlist[tet_thistest-1].icref;
-   (void) sprintf(name, "a%d.dat", ic);
+   sprintf(name, "a%d.dat", ic);
 
-	(void) unlink(name);
+	unlink(name);
 }