Getting undefined reference using Dev C++ for glut..

I thought of learning glut and got a simple program from the net. I'm a newbie to glut and i'm not able to work the code in my system. Could anyone help me please.. Its urgent.. I'm using dev c++ and i also installed glut package from devpacks.org.. Please help me..

The code's working fine now... But i have problem with another code..

It would be helpful if you posted it. Or if it is the original code, explain it further.