SDL_VERSION variable used in screen_sdl.cpp is 6 when it should not be. I
think the culprit is sdl-devel-1.2._0_, which is just faulty logic. Anyhow,
this is the quick-fix to get the binaries for AlephOne on the 4.3R CDs.
A better solution should be looked into by the maintainer and others.
Found by: bento
Since PR 25400 is better and is the former,
let its originator take maintainership.
PR: ports/25400, ports/25446
Submitted by: Michael Alyn Miller <malyn@strangeGizmo.com>, pjones@pmade.org