--- ray/src/rt/oocbuild.h	2016/05/17 17:39:47	2.1
+++ ray/src/rt/oocbuild.h	2024/09/17 16:36:04	2.2
@@ -7,13 +7,17 @@
    supported by the Swiss National Science Foundation (SNSF, #147053)
    =======================================================================
    
-   $Id: oocbuild.h,v 2.1 2016/05/17 17:39:47 rschregle Exp $
+   $Id: oocbuild.h,v 2.2 2024/09/17 16:36:04 greg Exp $
 */
 
 
 #ifndef OOC_BUILD_H
    #define OOC_BUILD_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
    /* Bottom-up construction of out-of-core octree in postorder traversal.
     * The octree oct is assumed to be initialised with its origin (oct ->
     * org), size (oct -> size), key callback (oct -> key), and its
@@ -38,5 +42,9 @@
     * failure, NULL is returned.  */
     OOC_Octree *OOC_Build (OOC_Octree *oct, unsigned leafMax, 
                            unsigned maxDepth);
+
+#ifdef __cplusplus
+}
 #endif
-    
\ No newline at end of file
+
+#endif