Index: SGReferenced.hxx
===================================================================
--- SGReferenced.hxx	(revision 35)
+++ SGReferenced.hxx	(working copy)
@@ -20,8 +20,13 @@
 
 #ifndef SGReferenced_HXX
 #define SGReferenced_HXX
+#define USE_OPENTHREADS_ATOMIC
 
+#ifndef USE_OPENTHREADS_ATOMIC
 #include "SGAtomic.hxx"
+#else
+#include <OpenThreads/Atomic>
+#endif
 
 /// Base class for all reference counted SimGear objects
 /// Classes derived from this one are meant to be managed with
@@ -49,7 +54,11 @@
   { if (ref) return 1u < ref->_refcount; else return false; }
 
 private:
+#ifndef USE_OPENTHREADS_ATOMIC
   mutable SGAtomic _refcount;
+#else
+  mutable OpenThreads::Atomic _refcount;
+#endif
 };
 
 #endif