Fix DB XML build on gcc 4.7

fix-gcc-4.7-build.patch

Index: dbxml-2.5.16/xqilla/src/items/DatatypeFactoryTemplate.hpp
===================================================================
--- dbxml-2.5.16.orig/xqilla/src/items/DatatypeFactoryTemplate.hpp	2010-01-13 16:40:37.000000000 +0100
+++ dbxml-2.5.16/xqilla/src/items/DatatypeFactoryTemplate.hpp	2012-09-09 15:17:49.342211658 +0200
@@ -79,7 +79,7 @@
   AnyAtomicType::Ptr createInstance(const XMLCh* value,
                                     const DynamicContext* context) const
   {
-    return createInstanceNoCheck(DatatypeFactoryTemplate<TYPE>::getPrimitiveTypeURI(),
+    return this->createInstanceNoCheck(DatatypeFactoryTemplate<TYPE>::getPrimitiveTypeURI(),
                                  DatatypeFactoryTemplate<TYPE>::getPrimitiveTypeName(), value, context);
   }