Install this version:
emerge -a =dev-ruby/dm-do-adapter-1.2.0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-ruby/dm-do-adapter-1.2.0
Or alternatively:
emerge --autounmask-write -a =dev-ruby/dm-do-adapter-1.2.0
# 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="" #RUBY_FAKEGEM_TASK_DOC="yard" #RUBY_FAKEGEM_DOCDIR="doc" RUBY_FAKEGEM_EXTRADOC="README.rdoc" RUBY_FAKEGEM_TASK_TEST="" inherit ruby-fakegem DESCRIPTION="A DataObjects Adapter for DataMapper" HOMEPAGE="http://datamapper.org/" LICENSE="MIT" SLOT="0" KEYWORDS="~amd64 ~x86" IUSE="" #ruby_add_bdepend "doc? ( >=dev-ruby/jeweler-1.6.4 )" ruby_add_rdepend ">=dev-ruby/data_objects-0.10.6 >=dev-ruby/dm-core-1.2.0"