Install this version:
emerge -a =dev-haskell/strict-concurrency-0.2.4.3
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-haskell/strict-concurrency-0.2.4.3
Or alternatively:
emerge --autounmask-write -a =dev-haskell/strict-concurrency-0.2.4.3
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
# ebuild generated by hackport 0.8.0.0.9999
CABAL_HACKAGE_REVISION=1
CABAL_FEATURES="lib profile haddock hoogle hscolour"
inherit haskell-cabal
DESCRIPTION="Strict concurrency abstractions"
HOMEPAGE="https://github.com/ygale/strict-concurrency"
LICENSE="BSD"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm64 ~x86"
RDEPEND=">=dev-lang/ghc-8.6.3:="
DEPEND="${RDEPEND}
>=dev-haskell/cabal-1.10
"