Install this version:
emerge -a =dev-haskell/language-docker-16.0.0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-haskell/language-docker-16.0.0
Or alternatively:
emerge --autounmask-write -a =dev-haskell/language-docker-16.0.0
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
CABAL_FEATURES="lib profile haddock hoogle hscolour test-suite"
inherit haskell-cabal
DESCRIPTION="Haskell Dockerfile parser, pretty-printer and EDSL"
HOMEPAGE="https://github.com/hadolint/language-docker"
LICENSE="GPL-3+"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~x86"
RDEPEND="dev-haskell/data-default:=[profile?]
dev-haskell/data-default-class:=[profile?]
dev-haskell/megaparsec:=[profile?]
dev-haskell/prettyprinter:=[profile?]
dev-haskell/split:=[profile?]
dev-haskell/text:=[profile?]"
DEPEND="${RDEPEND}"
BDEPEND="dev-haskell/cabal
test? ( dev-haskell/hunit
dev-haskell/hspec
dev-haskell/hspec-megaparsec
dev-haskell/quickcheck )"
CABAL_CHDEPS=(
'megaparsec >=9.7.0 && <9.9' 'megaparsec >=9.5.0'
)
src_prepare() {
haskell-cabal_src_prepare
sed -i '/license-file/d' language-docker.cabal || die "sed failed"
}
dev-haskell/data-default:=[profile?] dev-haskell/data-default-class:=[profile?] dev-haskell/megaparsec:=[profile?] dev-haskell/prettyprinter:=[profile?] dev-haskell/split:=[profile?] dev-haskell/text:=[profile?]
dev-haskell/data-default:=[profile?] dev-haskell/data-default-class:=[profile?] dev-haskell/megaparsec:=[profile?] dev-haskell/prettyprinter:=[profile?] dev-haskell/split:=[profile?] dev-haskell/text:=[profile?]
dev-haskell/cabal test? ( dev-haskell/hunit dev-haskell/hspec dev-haskell/hspec-megaparsec dev-haskell/quickcheck )