--- ray/src/rt/otspecial.h	2003/02/25 02:47:23	2.3
+++ ray/src/rt/otspecial.h	2003/06/07 00:54:58	2.4
@@ -1,12 +1,25 @@
-/* RCSid $Id: otspecial.h,v 2.3 2003/02/25 02:47:23 greg Exp $ */
+/* RCSid $Id: otspecial.h,v 2.4 2003/06/07 00:54:58 schorsch Exp $ */
 /*
  * Special type flags for objects used in rendering.
  * Depends on definitions in otypes.h
  */
+#ifndef _RAD_OTSPECIAL_H_
+#define _RAD_OTSPECIAL_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
+
 #include "copyright.h"
 
 		/* flag for materials to ignore during irradiance comp. */
 #define  T_IRR_IGN	T_SP1
 
 #define  irr_ignore(t)	(ofun[t].flags & T_IRR_IGN)
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_OTSPECIAL_H_ */
+