--- month2ct.c.orig	Wed Sep 30 11:46:49 1998
+++ month2ct.c	Wed Sep 30 11:46:57 1998
@@ -43,7 +43,7 @@
 void write_ct_file ();
 #endif
 
-void
+int
 main(argc, argv)
 int argc;
 char *argv[];
@@ -66,6 +66,7 @@
 		exit(1);
 	}
 	write_ct_file();
+	return 0;
 }
 
 /*