2beb7c40e0
SDL2 supports selecting between full OpenGL or OpenGL ES 1/2 but our selection code was written before SDL 2.0 was officially released and since then a new SDL_GL_CONTEXT_PROFILE_MASK attribute was added and we have to explicitly set the SDL_GL_CONTEXT_MINOR_VERSION attribute. Reviewed-by: Neil Roberts <neil@linux.intel.com>