See bug #130762 for the same about adplug. Since libbinio version 1.4, some header files has been relocated, and software using this, needs to take this into account.
Created attachment 86721 [details, diff] adplay-1.4-libbinio.patch
Created attachment 86722 [details] adplay-1.4-r2.ebuild
Added to CVS, thanks :)
Could this to marked stable? For mainline people, this will fail to compile.