Install this version:
emerge -a =dev-ruby/dm-serializer-1.2.2
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-ruby/dm-serializer-1.2.2
Or alternatively:
emerge --autounmask-write -a =dev-ruby/dm-serializer-1.2.2
# Copyright 1999-2020 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 EAPI=8 USE_RUBY="ruby32 ruby33" RUBY_FAKEGEM_TASK_DOC="yard" RUBY_FAKEGEM_DOCDIR="doc" RUBY_FAKEGEM_EXTRADOC="README.rdoc" RUBY_FAKEGEM_TASK_TEST="spec" inherit ruby-fakegem DESCRIPTION="DataMapper plugin for serializing Resources and Collections" HOMEPAGE="https://github.com/datamapper/dm-serializer" LICENSE="MIT" SLOT="0" KEYWORDS="~amd64 ~x86" IUSE="" RESTRICT="test" #ruby_add_bdepend "doc? ( dev-ruby/yard )" ruby_add_bdepend "dev-ruby/multi_json dev-ruby/fastercsv" #test? ( dev-ruby/rspec )" ruby_add_rdepend ">=dev-ruby/dm-core-1.2.0"