diff --git a/usr.sbin/rpc.statd/Makefile b/usr.sbin/rpc.statd/Makefile
index 0eedee55bd51..6d8053c29bed 100644
--- a/usr.sbin/rpc.statd/Makefile
+++ b/usr.sbin/rpc.statd/Makefile
@@ -5,6 +5,7 @@ MAN=	rpc.statd.8
 SRCS=	file.c sm_inter_svc.c sm_inter.h statd.c procs.c
 
 CFLAGS+= -I.
+#WARNS?= 2
 
 DPADD=	${LIBRPCSVC}
 LDADD=	-lrpcsvc
diff --git a/usr.sbin/rpc.statd/file.c b/usr.sbin/rpc.statd/file.c
index 4c17e5d56850..991af887e045 100644
--- a/usr.sbin/rpc.statd/file.c
+++ b/usr.sbin/rpc.statd/file.c
@@ -239,7 +239,8 @@ static int notify_one_host(char *hostname)
     return (FALSE);
   }
 
-  if (clnt_call(cli, SM_NOTIFY, xdr_stat_chge, &arg, xdr_void, &dummy, timeout)
+  if (clnt_call(cli, SM_NOTIFY, (xdrproc_t)xdr_stat_chge, &arg,
+      (xdrproc_t)xdr_void, &dummy, timeout)
     != RPC_SUCCESS)
   {
     syslog(LOG_ERR, "Failed to contact rpc.statd at host %s", hostname);
diff --git a/usr.sbin/rpc.statd/procs.c b/usr.sbin/rpc.statd/procs.c
index 8109c9cea73c..eed784959152 100644
--- a/usr.sbin/rpc.statd/procs.c
+++ b/usr.sbin/rpc.statd/procs.c
@@ -409,8 +409,8 @@ void *sm_notify_1_svc(stat_chge *arg, struct svc_req *req __unused)
     }
     else
     {
-      if (clnt_call(cli, lp->notifyProc, xdr_sm_status, &tx_arg, xdr_void,
-	      &dummy, timeout) != RPC_SUCCESS)
+      if (clnt_call(cli, lp->notifyProc, (xdrproc_t)xdr_sm_status, &tx_arg,
+	  (xdrproc_t)xdr_void, &dummy, timeout) != RPC_SUCCESS)
       {
         syslog(LOG_ERR, "Failed to call rpc.statd client at host %s",
 	  lp->notifyHost);
diff --git a/usr.sbin/rpc.umntall/Makefile b/usr.sbin/rpc.umntall/Makefile
index 1ea7fe6e1401..0a829c301cb5 100644
--- a/usr.sbin/rpc.umntall/Makefile
+++ b/usr.sbin/rpc.umntall/Makefile
@@ -5,4 +5,6 @@ PROG=	rpc.umntall
 MAN=	rpc.umntall.8
 SRCS=	rpc.umntall.c mounttab.c
 
+#WARNS?= 2
+
 .include <bsd.prog.mk>
diff --git a/usr.sbin/rpc.umntall/rpc.umntall.c b/usr.sbin/rpc.umntall/rpc.umntall.c
index 050affbed019..0ce1ce29874c 100644
--- a/usr.sbin/rpc.umntall/rpc.umntall.c
+++ b/usr.sbin/rpc.umntall/rpc.umntall.c
@@ -182,8 +182,9 @@ do_umntall(char *hostname) {
 	clp->cl_auth = authunix_create_default();
 	try.tv_sec = 3;
 	try.tv_usec = 0;
-	clnt_stat = clnt_call(clp, RPCMNT_UMNTALL, xdr_void, (caddr_t)0,
-	    xdr_void, (caddr_t)0, try);
+	clnt_stat = clnt_call(clp, RPCMNT_UMNTALL,
+	    (xdrproc_t)xdr_void, (caddr_t)0,
+	    (xdrproc_t)xdr_void, (caddr_t)0, try);
 	if (clnt_stat != RPC_SUCCESS)
 		warnx("%s: %s", hostname, clnt_sperror(clp, "RPCMNT_UMNTALL"));
 	auth_destroy(clp->cl_auth);
@@ -208,8 +209,8 @@ do_umount(char *hostname, char *dirp) {
 	clp->cl_auth = authsys_create_default();
 	try.tv_sec = 3;
 	try.tv_usec = 0;
-	clnt_stat = clnt_call(clp, RPCMNT_UMOUNT, xdr_dir, dirp,
-	    xdr_void, (caddr_t)0, try);
+	clnt_stat = clnt_call(clp, RPCMNT_UMOUNT, (xdrproc_t)xdr_dir, dirp,
+	    (xdrproc_t)xdr_void, (caddr_t)0, try);
 	if (clnt_stat != RPC_SUCCESS)
 		warnx("%s: %s", hostname, clnt_sperror(clp, "RPCMNT_UMOUNT"));
 	auth_destroy(clp->cl_auth);