Added #include<memory> to fix gcc 4.3 build problem

src/osgPlugins/gdal/ReaderWriterGDAL.cpp

@@ -11,6 +11,8 @@
  * OpenSceneGraph Public License for more details.
 */
 
+
+
 #include <osg/Image>
 #include <osg/Notify>
 #include <osg/Geode>
@@ -24,6 +26,8 @@
 #include <OpenThreads/ScopedLock>
 #include <OpenThreads/ReentrantMutex>
 
+#include <memory>
+
 #include <gdal_priv.h>
 
 #include "DataSetLayer.h"