[SDL] patch to allow for accelerometer input as directional control

[Mark A Smith]

Hi,

I have posted to my website a patch to SDL which allows the accelerometer
in ThinkPads to be used as directional input.
It's pretty fun for games which rely almost exclusively on directional
input as their interface, such as Neverball or Tux Racer.

The web page describing the modification can be found at:

http://www.almaden.ibm.com/cs/people/marksmith/sdl.html

-Mark A. Smith