The author of SDL Image Slider, elef@s, has given his source code for the DC which plays animated GIF images. Here’s what he had to say:
Well it’s been a long time. Unfortunatelly I haven’t time at all for Image Slider, my interesting also has degraded. So here is the source code for DC which plays gif animations. It loads an image from romdisk (sonic.gif) and plays it. Code sucks and I know but consider it an abandoned project for me. I hope it will help anyone who wants to add a gif animation to his project.
You can find the download to the source code, right here.