irrXML parser linker problems

[3ddev]

When compiling my new game in Dev-C++, the irrXML code didn't work. The linker error was:

C:\cplus\Irrlicht\drawn_battle1\main.cpp In function `void read_config()':
248 C:\cplus\Irrlicht\drawn_battle1\main.cpp `IrrXMLReader' undeclared (first use this function)
248 C:\cplus\Irrlicht\drawn_battle1\main.cpp `xml' undeclared (first use this function)
248 C:\cplus\Irrlicht\drawn_battle1\main.cpp `createIrrXMLReader' undeclared (first use this function)
256 C:\cplus\Irrlicht\drawn_battle1\main.cpp `EXN_ELEMENT' undeclared (first use this function)
C:\cplus\Irrlicht\drawn_battle1\Makefile.win [Build Error] [main.o] Error 1

The irrXML.h header file was included, and I even tried linking the irrXML.o object file in the project. The problem remained. Do I have to link or reference any other files in order to compile?