myusername beryl-core # emerge  beryl-core-0.1.0.ebuild
emerging by path implies --oneshot... adding --oneshot to options.

*** emerging by path is broken and may not always work!!!

Calculating dependencies
!!! '/usr/local/overlays/xgl-coffee/x11-wm/beryl-core/beryl-core-0.1.0.ebuild is not in a valid portage tree hierarchy or does not exist'

myusername beryl-core # pwd
/usr/local/overlays/xgl-coffee/x11-wm/beryl-core