No, I didn't have to chance anything in the code. The problems with Lion have indeed already been fixed in the SDL repository. However, I had some problems with the default build settings of SDL (some blitting code didn't work) and instead of finding out why it didn't work, I simply used the "-...

I have hacked together a Lion compatible version of ScummVM 1.3.1 so that we don't have to do without our games until an official version is released. You can download it here:

http://ul.to/rihg04rd

I hope it works for you, too.