--- ray/src/gen/gencat.c	1993/06/04 15:08:46	2.1
+++ ray/src/gen/gencat.c	2007/09/20 21:28:35	2.6
@@ -1,9 +1,6 @@
-/* Copyright (c) 1993 Regents of the University of California */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ LBL";
+static const char	RCSid[] = "$Id: gencat.c,v 2.6 2007/09/20 21:28:35 greg Exp $";
 #endif
-
 /*****************************************************************************
   This program is to make series of right triangles forming hyperbolic cosin
   (ie, cosh) curve in between of 2 points.
@@ -28,6 +25,7 @@ static char SCCSid[] = "$SunId$ LBL";
 ******************************************************************************/
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <math.h>
 
 char  *cmtype, *cname;
@@ -66,6 +64,20 @@ fprintf(stderr, "Interation limit exceeded -- invalid 
 }
 
 
+static void
+printhead(ac, av)		/* print command header */
+register int  ac;
+register char  **av;
+{
+	putchar('#');
+	while (ac--) {
+		putchar(' ');
+		fputs(*av++, stdout);
+	}
+	putchar('\n');
+}
+
+int
 main (argc, argv)
 int argc;
 char *argv[];
@@ -79,7 +91,8 @@ char *argv[];
    int  n;
 
    if (argc != 11) {
-      fprintf(stderr, "Usage: gencat material name x0 y0 z0 x1 y1 z1 k d\n");
+      fprintf(stderr, "Usage: %s  material name x0 y0 z0 x1 y1 z1 k d\n",
+      		argv[0]);
       exit(1);
    }      
 
@@ -124,17 +137,6 @@ char *argv[];
       }
       h += delh;
    }
+   return 0;
 }
 
-
-printhead(ac, av)		/* print command header */
-register int  ac;
-register char  **av;
-{
-	putchar('#');
-	while (ac--) {
-		putchar(' ');
-		fputs(*av++, stdout);
-	}
-	putchar('\n');
-}