daniel wrote
CVS installation works fine.
What is the difference between that one and the one on github?
That's good that the CVS compiles and runs on RPi.
The github version has quite a few more dependencies than before. New things like libpng, zlib, plus a couple of home baked things like xbrz scaling, fantasyname generator, music and sound, and possibly some other things I have failed to mention. It's not guaranteed that the additional libraries and bespoke stuff will work with the RPi compiler toolchain, or even if it compiles the application may not be compatible with either the chipset architecture or device drivers.
One cool thing to do would be to clone the git repository and progressively work backwards (or forwards) to find the last version of IVAN that compiles and runs on RPi. That should give an indication of what new features definitely break the game on RPi.