Install this version:
emerge -a =app-emacs/emhacks-20070920-r2
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =app-emacs/emhacks-20070920-r2
Or alternatively:
emerge --autounmask-write -a =app-emacs/emhacks-20070920-r2
# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit elisp
DESCRIPTION="Useful Emacs Lisp libraries, including gdiff, jjar, jmaker, swbuff, and tabbar"
HOMEPAGE="http://emhacks.sourceforge.net/"
# CVS snapshot
SRC_URI="https://dev.gentoo.org/~ulm/distfiles/${P}.tar.bz2"
LICENSE="GPL-2+"
SLOT="0"
KEYWORDS="~amd64 ~x86"
SITEFILE="50${PN}-gentoo.el"
DOCS="Changelog"
src_prepare() {
# remove files included in Emacs>=22 or not useful on GNU/Linux
# remove jsee #642588
rm -r findstr* jsee* overlay-fix* recentf* ruler-mode* tree-widget* || die
default
}