Moved the OSG_INIT_SINGLETON_PROXY macro into include/osg/Object to make it more generally useful and added it's usage into the RenderBinPrototypeList initialization.

include/osg/Object

@@ -42,6 +42,9 @@ class UserDataContainer;
         virtual const char* libraryName() const { return #library; }\
         virtual const char* className() const { return #name; }
 
+/** Helper macro that creates a static proxy object to call singleton function on it's construction, ensuring that the singleton gets initialized at startup.*/
+#define OSG_INIT_SINGLETON_PROXY(ProxyName, Func) static struct ProxyName{ ProxyName() { Func; } } s_##ProxyName;
+        
 /** Base class/standard interface for objects which require IO support,
     cloning and reference counting.
     Based on GOF Composite, Prototype and Template Method patterns.

src/osgUtil/RenderBin.cpp

@@ -54,6 +54,10 @@ static RenderBinPrototypeList* renderBinPrototypeList()
     return s_renderBinPrototypeList.get();
 }
 
+// Use a proxy to force the initialization of the the SceneSingleton during static initialization
+OSG_INIT_SINGLETON_PROXY(RenderBinSingletonProxy, renderBinPrototypeList())
+
+
 RenderBin* RenderBin::getRenderBinPrototype(const std::string& binName)
 {
     RenderBinPrototypeList* list = renderBinPrototypeList();

src/osgViewer/Scene.cpp

@@ -16,7 +16,6 @@
 
 using namespace osgViewer;
 
-#define OSG_INIT_SINGLETON_PROXY(ProxyName, Func) static struct ProxyName{ ProxyName() { Func; } } s_##ProxyName;
 
 namespace osgViewer
 {