Index: OpenSceneGraph/trunk/src/osgViewer/PixelBufferCarbon.cpp
===================================================================
--- OpenSceneGraph/trunk/src/osgViewer/PixelBufferCarbon.cpp (revision 10005)
+++ OpenSceneGraph/trunk/src/osgViewer/PixelBufferCarbon.cpp (revision 10006)
@@ -8,5 +8,5 @@
  */
  
- #ifdef __APPLE__
+#if defined (__APPLE__) && (!__LP64__)
 
 #include <osg/observer_ptr>