From Marco Jez, updates to osgIntrospection.

src/osgIntrospection/ConstructorInfo.cpp

@@ -0,0 +1,15 @@
+#include <osgIntrospection/ConstructorInfo>
+
+using namespace osgIntrospection;
+
+void ConstructorInfo::getInheritedProviders(CustomAttributeProviderList &providers) const
+{
+    for (int i=0; i<decltype_.getNumBaseTypes(); ++i)
+    {
+        const ConstructorInfo *ci = decltype_.getBaseType(i).getConstructor(params_);
+        if (ci)
+        {
+            providers.push_back(ci);
+        }
+    }
+}