C:\...\cegui_mk2\include\CEGUIGlobalEventSet.h(36) : warning C4275: non dll-interface class 'CEGUI::Singleton<class CEGUI::GlobalEventSet>' used as base for dll-interface class 'CEGUI::GlobalEventSet'
C:\...\C_Libs\cegui_mk2\include\CEGUIGlobalEventSet.h(35) : see declaration of 'GlobalEventSet'
I am using the mk2 0.2.0 I believe, with the Ogre SDK. I get about 1 warning of these per cpp file in my main project - what causes this?
TIA