--- ray/src/cal/ev.c	2003/07/27 22:12:01	1.3
+++ ray/src/cal/ev.c	2003/11/14 17:31:24	1.6
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: ev.c,v 1.3 2003/07/27 22:12:01 schorsch Exp $";
+static const char	RCSid[] = "$Id: ev.c,v 1.6 2003/11/14 17:31:24 schorsch Exp $";
 #endif
 /*
  *  ev.c - program to evaluate expression arguments
@@ -9,16 +9,17 @@ static const char	RCSid[] = "$Id: ev.c,v 1.3 2003/07/2
 
 #include  <stdlib.h>
 #include  <stdio.h>
+#include  <errno.h>
 
 #include  "calcomp.h"
 #include  "rterror.h"
 
 
+int
 main(argc, argv)
 int  argc;
 char  *argv[];
 {
-	extern int  errno;
 	int  i;
 
 	esupport |= E_FUNCTION;
@@ -33,6 +34,7 @@ char  *argv[];
 		printf("%.9g\n", eval(argv[i]));
 
 	quit(errno ? 2 : 0);
+	return (errno ? 2 : 0); /* pro forma return */
 }