[SDL] SDL OpenGL test program

[Ryan C. Gordon]

> What do i need more in order to use OpenGl in SDL?

If the specific error message was "No OpenGL support on this system" 
then you probably built SDL without OpenGL support. It doesn't mean your 
system is misconfigured for 3D acceleration, it probably means you're 
missing OpenGL headers or something. See if there's a developer package 
that needs to be installed.

This OpenGL test is done at build time; it already has decided whether 
you have OpenGL available before you've run the test program.

--ryan.