@gulliver:
That doesn't seem to be it; that project is for BSD and Linux. And there are no files there to download in any case.
No, that is it. sf.net is in static offline mode at the moment so I can't see if I can get to the files, but I don't see why they wouldn't still be there.
There's an unofficial mirror here:
https://github.com/ashang/libxadI don't know if it is up-to-date but it should be new enough.
The fact that it is a hybrid Linux/Amiga project with loads of makefiles and a weird structure is precisely why I can't figure out how to build it (although I didn't try very hard) (and I think the 68k side of things expects SAS/C, which doesn't help).