-/* Define this if the `xscreensaver' process itself (the driver process)
- should be linked against GL. Most systems won't want this (in particular,
- if you're using Linux and/or Mesa, you don't want this) but SGI systems
- do want this. It may also be useful on other systems that have serious
- GL support -- you only need this if you have a lot of different visuals,
- not all of which work with GL programs.