--- ray/src/common/bsdf_t.h	2011/02/19 01:48:59	3.3
+++ ray/src/common/bsdf_t.h	2011/04/08 18:13:48	3.4
@@ -1,8 +1,10 @@
-/* RCSid $Id: bsdf_t.h,v 3.3 2011/02/19 01:48:59 greg Exp $ */
+/* RCSid $Id: bsdf_t.h,v 3.4 2011/04/08 18:13:48 greg Exp $ */
 /*
  *  bsdf_t.h
  *  
- *  Support for variable-resolution BSDF trees
+ *  Support for variable-resolution BSDF trees.
+ *  Assumes "bsdf.h" already included.
+ *  Include after "ezxml.h" for SDloadTre() declaration.
  *
  *  Created by Greg Ward on 2/2/11.
  *
@@ -27,8 +29,10 @@ typedef struct SDNode_s {
 	} u;			/* subtrees or values (extends struct) */
 } SDNode;
 
+#ifdef _EZXML_H
 /* Load a variable-resolution BSDF tree from an open XML file */
 extern SDError		SDloadTre(SDData *sd, ezxml_t wtl);
+#endif
 
 /* Our matrix handling routines */
 extern const SDFunc	SDhandleTre;