[libvirt] error in compiling event-test.c

Hello, I am trying to run event-test.c provided in libvirt package.I am using ubuntu 13.04. However,after compiling I am getting an error saying ->undefined reference to... I think this is because compiler is not able to find the functions and macros in the header files.However I am not able to solve the problem. I have provided my screenshot of error as an attachment. I shall be really grateful if anyone can help me. Thanks Rashmi