+ SDL_image, an image-loading library based on SDL, is also required.
+
+ You can download SDL_image from:
+ http://www.libsdl.org/projects/SDL_image/
+
+ OpenGL
+ ------
+ OpenGL is a graphics library that your system should already
+ have (it is preinstalled on Windows and should be available
+ in your X11 distribution on Unix systems).
+
+ To have the best performance possible, you should have an
+ accelerated graphics card and use its vendor's drivers. Currently,
+ only NVidia writes decent drivers for Linux, but since only
+ accelerated 2D is used, the performance on ATI or other graphics
+ cards shouldn't be significantly worse.
+
+ You will need the OpenGL headers to compile SuperTux, so it is
+ advisable to first install Mesa (which should be included with your
+ X11 distribution) on Unix to get the headers and only then replace
+ the software rendering OpenGL library by installing the driver for
+ your graphics card.
+
+ PhysicsFS