--- ray/src/gen/genprism.c	1989/02/02 11:16:28	1.1
+++ ray/src/gen/genprism.c	1991/11/12 17:04:46	2.1
@@ -102,7 +102,7 @@ userr:
 
 
 readverts(fname)		/* read vertices from a file */
-FILE  *fname;
+char  *fname;
 {
 	FILE  *fp;