To install the OpenGL module, please follow these instructions: 1. Edit Makefile.PL, and comment out any packages that your system doesn't have. (If you are using Mesa 3.0 or later, then you definitely have all of them.) If you are unsure, leave them all enabled and try building the package. You may also need to fix up the list of library paths and names. 2. Run 'perl Makefile.PL' 3. Run 'make' 4. If your system has GLUT available, you can run 'make test' to make sure everything is functioning properly. 5. If all is well, run 'make install' to make the OpenGL module available to your system.