I got a QA warning when emerging dev-lang/tcl-8.5.8-r1 about epause not defined in EAPI=3. (That warning is from eutils.eclass.) Reproducible: Always
+ 15 Jun 2010; Justin Lecher <jlec@gentoo.org> tcl-8.5.8-r1.ebuild: + Removing epause reported in bug 324139 +