Add SDL2 opengles support for linux please.

[ut-slayer]

Can you add SDL Support or wayland support for linux? if you add SDL directly is better. I am using rocknix. An linux arm64 distribution for some handlends linux consoles and a lot of mali gpus. It uses wayland and Xwayland dont work good sometimes but OpenGL dont work with Mali Powered drivers. It has GLES 3.2. Can you add support for build in linux with SDL + OpenGLES driver option without x11. Thanks a lot