Hello, I was wondering if I could get some help with opengl. I am trying to learn how to write a cube in C. I have downloaded OpenGl, as well as a cube tutorial at: OpenGL - Examples but I am unable to compile it because on lines 1149+ of gl.h there appears to be an issue with all of the commands that start with gl, such as "glAccum". I am sure that I am missing a file/path, but my compiler is not picking it up. What should I do?