Install this version:
emerge -a =dev-ruby/rex-arch-0.1.13
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-ruby/rex-arch-0.1.13
Or alternatively:
emerge --autounmask-write -a =dev-ruby/rex-arch-0.1.13
# Copyright 1999-2020 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 EAPI=8 USE_RUBY="ruby32 ruby33" RUBY_FAKEGEM_RECIPE_TEST="none" RUBY_FAKEGEM_TASK_DOC="" RUBY_FAKEGEM_BINWRAP="" inherit ruby-fakegem DESCRIPTION="architecture specific information for Rex" HOMEPAGE="https://rubygems.org/gems/rex-arch" LICENSE="BSD" SLOT="0" KEYWORDS="~amd64 ~arm64 ~x86" IUSE="" ruby_add_bdepend "dev-ruby/rex-text"