Install this version:
emerge -a =dev-haskell/unix-compat-0.7.4.1
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-haskell/unix-compat-0.7.4.1
Or alternatively:
emerge --autounmask-write -a =dev-haskell/unix-compat-0.7.4.1
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
# ebuild generated by hackport 0.9.1.0.9999
CABAL_FEATURES="lib profile haddock hoogle hscolour test-suite"
inherit haskell-cabal
DESCRIPTION="Portable POSIX-compatibility layer"
HOMEPAGE="https://github.com/haskell-pkg-janitors/unix-compat"
LICENSE="BSD"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
RDEPEND=">=dev-lang/ghc-9.0.2:=
"
DEPEND="${RDEPEND}
>=dev-haskell/cabal-3.4.1.0
test? ( >=dev-haskell/hspec-2.5.5
dev-haskell/hunit
dev-haskell/monad-parallel
dev-haskell/temporary )
"
>=dev-lang/ghc-9.0.2:= >=dev-haskell/cabal-3.4.1.0 test? ( >=dev-haskell/hspec-2.5.5 dev-haskell/hunit dev-haskell/monad-parallel dev-haskell/temporary )
>=dev-lang/ghc-9.0.2:=