--- ray/src/cal/calc.c	2003/06/30 14:59:10	1.3
+++ ray/src/cal/calc.c	2003/11/14 17:31:24	1.5
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: calc.c,v 1.3 2003/06/30 14:59:10 schorsch Exp $";
+static const char	RCSid[] = "$Id: calc.c,v 1.5 2003/11/14 17:31:24 schorsch Exp $";
 #endif
 /*
  *  calc.c - simple algebraic desk calculator program.
@@ -13,9 +13,9 @@ static const char	RCSid[] = "$Id: calc.c,v 1.3 2003/06
 #include  <setjmp.h>
 #include  <ctype.h>
 
+#include  "rterror.h"
 #include  "calcomp.h"
 
-
 #define  MAXRES		100
 
 double  result[MAXRES];
@@ -25,6 +25,7 @@ jmp_buf  env;
 int  recover = 0;
 
 
+int
 main(argc, argv)
 int  argc;
 char  *argv[];
@@ -116,6 +117,7 @@ char  *argv[];
 
 	recover = 0;
 	quit(0);
+	return 0; /* pro forma exit */
 }