The new efika is not opengl but opengles .
http://en.wikipedia.org/wiki/OpenGL_ES
And that is good thing.
Also as glxgears is opengl specific it needs to rewriten for opengl es. Dont know if there is a dri driver for opengl es but there are other better ways. There is no need for glx.
Some tutorials on using opengles with sdl:
http://embedded.org.ua/opengles/lessons.html
Dont think opengles is a baby sister of opengl as it is quite powerfull. I watched an interactive 3d demo on my G2 Phone (
http://www.youtube.com/watch?v=RqKCam7wgws )