wxOnExceptionInMainloop?

[c.Kleinhuis]

hi all,

i just tried out the debug mode of my project, and i stumbled upon a new 
linker problem

unresolved external symbol "public: virtual void __thiscall 
wxAppConsole::HandleEvent(class wxEvtHandler *,void (__thiscall 
wxEvtHandler::*)(class wxEvent &),class wxEvent &)const " 
(?HandleEvent at wxAppConsole@@

unresolved external symbol "public: virtual bool __thiscall 
wxApp::OnExceptionInMainLoop(void)"


i used to compile the debug version normal in the past, but this 
appeared right now, i could not find
any library containing these function ...
where to find them ?

kind regards
ck