I figured I'd take a few minutes to help anyone out there that is 
looking to run OpenGL and GLUT on thier Ubuntu machine. I am using v7.10 
but I suspect that these instructions are the same for any version you 
may be using...

        1) Bring up your terminal window and type (without quotes)
                "sudo apt-get install libglut3-dev"

        2) This should install all the GLUT header files you will need.
           You do not need to install OpenGL as this is already on the
           system.


        3) Just make sure that all files are installed by typing
                "sudo apt-get install freeglut3" and
                "sudo apt-get install freeglut3-dev"

           If those are already installed, good, if not this will               
 
install the necessary files for you.    

        4) Now, in your compile command you need to add "-lglut" so
                "g++ opengl.c -o opengl -lglut"

        5) Enjoy

If there are any questions or comments please let me know. Hope this helps.

Joe Barkawi