Lately I have upgraded from irrlicht 1.3 to irrlicht 1.5 using the Dev_C++ package. When I tried compiling the DEMO example the compiler showed the following error.
[Linker error] undefined reference to `_imp___ZN3irr12createDeviceENS_5video13E_DRIVER_TYPEERKNS_4core11dimension2dIiEEjbbbPNS_14IEventReceiverE'
Looks like you have a wrong or missing link with Irrlicht.lib. Check your paths, avoid using an old Irrlicht.dll somewhere in your system path, make sure you use the -gcc one, etc.