--- ray/src/hd/sm.h	2003/06/20 00:25:49	3.12
+++ ray/src/hd/sm.h	2003/07/14 22:24:00	3.13
@@ -1,13 +1,19 @@
-/* RCSid: $Id: sm.h,v 3.12 2003/06/20 00:25:49 greg Exp $ */
+/* RCSid: $Id: sm.h,v 3.13 2003/07/14 22:24:00 schorsch Exp $ */
 /*
  *  sm.h
  */
 
-#ifndef _SM_H_
-#define _SM_H_
+#ifndef _RAD_SM_H_
+#define _RAD_SM_H_
+
 #include "rhd_sample.h"
 #include "sm_qtree.h"
 #include "sm_stree.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define NEWSETS
 
 
@@ -265,12 +271,9 @@ extern FVECT FrustumNear[4],FrustumFar[4];
  * Find the closest sample to the given ray.  Return -1 on failure.
  *
  */
-#endif
 
-
-
-
-
-
-
+#ifdef __cplusplus
+}
+#endif
+#endif /* define _RAD_SM_H_ */