Function elisp-site-file-install cannot be used to install general elisp files; especially, it accepts only one filename argument. Please use elisp-install instead (this is well-documented in elisp-common.eclass, btw). Also, files/80cmt-mode-gentoo.el should include the following as its first line: (add-to-list 'load-path "@SITELISP@") Patch will follow.
Created attachment 168196 [details, diff] Proposed patch for ebuild and Emacs site-init file
Applied patch in cvs. Thanks!