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.
commit 8ece1ec40436bc9267699613e0d6585ebf6f6ebc Author: Michael Orlitzky <mjo@gentoo.org> Date: Wed Aug 24 10:42:27 2016 -0400 net-dialup/dial: new revision with EAPI=6. By moving to EAPI=6, this new revision (-r2) allows us to drop the eutils eclass, and the src_prepare/src_install phases. As a byproduct, einstall is no longer used. Gentoo-Bug: 521578 Package-Manager: portage-2.2.28