Index: /OpenSceneGraph/trunk/include/osg/Version
===================================================================
--- /OpenSceneGraph/trunk/include/osg/Version (revision 10077)
+++ /OpenSceneGraph/trunk/include/osg/Version (revision 10173)
@@ -22,6 +22,18 @@
 #define OPENSCENEGRAPH_MAJOR_VERSION    2
 #define OPENSCENEGRAPH_MINOR_VERSION    9
-#define OPENSCENEGRAPH_PATCH_VERSION    4
-#define OPENSCENEGRAPH_SOVERSION        59
+#define OPENSCENEGRAPH_PATCH_VERSION    5
+#define OPENSCENEGRAPH_SOVERSION        60
+
+/** convinience macro that can be used to decide whether a feature is present or not i.e.
+  * #if OSG_MIN_VERSION_REQUIRED(2,9,5)
+  *    your code here
+  * #endif
+  */ 
+#define OSG_MIN_VERSION_REQUIRED(MAJOR, MINOR, PATCH) ((OPENSCENEGRAPH_MAJOR_VERSION>MAJOR) || (OPENSCENEGRAPH_MAJOR_VERSION==MAJOR && (OPENSCENEGRAPH_MINOR_VERSION>MINOR || (OPENSCENEGRAPH_MINOR_VERSION==MINOR && OPENSCENEGRAPH_PATCH_VERSION>=PATCH))))
+#define OSG_VERSION_LESS_THAN(MAJOR, MINOR, PATCH) ((OPENSCENEGRAPH_MAJOR_VERSION<MAJOR) || (OPENSCENEGRAPH_MAJOR_VERSION==MAJOR && (OPENSCENEGRAPH_MINOR_VERSION<MINOR || (OPENSCENEGRAPH_MINOR_VERSION==MINOR && OPENSCENEGRAPH_PATCH_VERSION<PATCH))))
+#define OSG_VERSION_LESS_OR_EQUAL(MAJOR, MINOR, PATCH) ((OPENSCENEGRAPH_MAJOR_VERSION<MAJOR) || (OPENSCENEGRAPH_MAJOR_VERSION==MAJOR && (OPENSCENEGRAPH_MINOR_VERSION<MINOR || (OPENSCENEGRAPH_MINOR_VERSION==MINOR && OPENSCENEGRAPH_PATCH_VERSION<=PATCH))))
+#define OSG_VERSION_GREATER_THAN(MAJOR, MINOR, PATCH) ((OPENSCENEGRAPH_MAJOR_VERSION>MAJOR) || (OPENSCENEGRAPH_MAJOR_VERSION==MAJOR && (OPENSCENEGRAPH_MINOR_VERSION>MINOR || (OPENSCENEGRAPH_MINOR_VERSION==MINOR && OPENSCENEGRAPH_PATCH_VERSION>PATCH))))
+#define OSG_VERSION_GREATER_OR_EQUAL(MAJOR, MINOR, PATCH) ((OPENSCENEGRAPH_MAJOR_VERSION>MAJOR) || (OPENSCENEGRAPH_MAJOR_VERSION==MAJOR && (OPENSCENEGRAPH_MINOR_VERSION>MINOR || (OPENSCENEGRAPH_MINOR_VERSION==MINOR && OPENSCENEGRAPH_PATCH_VERSION>=PATCH))))
+
 
 /**