Install this version:
emerge -a =dev-ruby/espeak-ruby-1.0.4
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-ruby/espeak-ruby-1.0.4
Or alternatively:
emerge --autounmask-write -a =dev-ruby/espeak-ruby-1.0.4
# Copyright 1999-2020 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 EAPI=8 USE_RUBY="ruby32 ruby33" inherit ruby-fakegem DESCRIPTION="A small API for utilizing 'espeak' and 'lame' to create Text-To-Speech mp3 files" HOMEPAGE="https://github.com/dejan/espeak-ruby" LICENSE="MIT" SLOT="0" KEYWORDS="~amd64 ~x86" IUSE="" RESTRICT=test #ruby_add_rdepend "dev-ruby/nio4r:2 # >=dev-ruby/timers-4.1 =dev-ruby/timers-4* #"