Please check whether the use of 'einstall' in this ebuild is actually needed. From a quick glance at the Makefile, it seems to have proper support for DESTDIR. Therefore, if possible please replace the call to 'einstall' with proper 'default' or 'emake DESTDIR="${D}" install'. Thanks.
Yup, that einstall() is extraneous and installs the same things as `emake DESTDIR="${D}" install`. + 30 Aug 2014; Nathan Phillip Brink <binki@gentoo.org> bitchx-1.2.ebuild: + Drop einstall() from bitchx-1.2 for bug #521438.