--- ray/src/util/setscan.h	1991/11/12 17:19:18	2.1
+++ ray/src/util/setscan.h	2003/06/27 11:32:12	2.3
@@ -1,10 +1,22 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
-/* SCCSid "$SunId$ LBL" */
-
+/* RCSid: $Id: setscan.h,v 2.3 2003/06/27 11:32:12 schorsch Exp $ */
 /*
  * Defines for programs using setscan()
  */
+#ifndef _RAD_SETSCAN_H_
+#define _RAD_SETSCAN_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
+
 #define  ANGLE		short
 #define  AEND		(-1)
+
+int setscan(register ANGLE *ang, register char *arg);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_SETSCAN_H_ */
+