Right so the problem is no sound effects, otherwise fine? I just built it myself (but not using your SLKBUILD, just by hand), and it worked beautifully, but as you say, no sound.
I've made a package for it but sound still doesn't work. However, I suspect this is just because of unmet dependencies - such as libvorbis, which was uploaded to the repo recently. I'll try again in a week or two.
Everything that should be needed must have been packaged by now, but I still can't get it to work. Perhaps a patch is needed, but that's beyond my abilities. Alternatively, maybe an older version (from among those Ubuntu versions) might work.
I'm afraid I give up.
In case anyone is interested in pursuing this, I just found that I needed glibc-solibs to build it, which I don't think I did before. This is a build time dependency, not run time.