D2X-Rebirth requires a physfs with hog support compiled in. On Gentoo that's as easy as flicking a USE flag. The problem? That use flag is not listed as a dependency in games-action/d2x-rebirth. Normally I'd mark this with "minor" or even "trivial", but last I checked d2x-rebirth didn't throw the correct error when physfs doesn't have hog support. I attached a fixed ebuild (=games-action/d2x-rebirth-0.50-r1)
Created attachment 275949 [details] Fixed ebuild
fixed. thanks for the bug report.