A new version of SDL Wii has been released, compatible with the latest devkitPPC/libogc.
Simple DirectMedia Layer (SDL) is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, and video. It is used by MPEG playback software, emulators, and many popular games. SDL is written in C, but works with C++ natively.
SDL support on Wii is currently incomplete. Although SDL is useable, you will likely experience problems until this is rectified. Please contribute any improvements you make to the SDL Wii SVN.