Install this version:
emerge -a =dev-haskell/distributive-0.6.3
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-haskell/distributive-0.6.3
Or alternatively:
emerge --autounmask-write -a =dev-haskell/distributive-0.6.3
# 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
#hackport: flags: +tagged,+semigroups
CABAL_FEATURES="lib profile haddock hoogle hscolour test-suite"
inherit haskell-cabal
DESCRIPTION="Distributive functors -- Dual to Traversable"
HOMEPAGE="https://github.com/ekmett/distributive/"
LICENSE="BSD"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm64 ~ppc64 ~riscv ~x86"
RDEPEND=">=dev-haskell/tagged-0.7:=[profile?] <dev-haskell/tagged-1:=[profile?]
>=dev-lang/ghc-9.0.2:=
"
DEPEND="${RDEPEND}
>=dev-haskell/cabal-3.4.1.0
test? ( >=dev-haskell/generic-deriving-1.11 <dev-haskell/generic-deriving-2
>=dev-haskell/hspec-2 <dev-haskell/hspec-3 )
"
src_configure() {
haskell-cabal_src_configure \
--flag=semigroups \
--flag=tagged
}
>=dev-haskell/tagged-0.7:=[profile?] <dev-haskell/tagged-1:=[profile?] >=dev-lang/ghc-9.0.2:= >=dev-haskell/cabal-3.4.1.0 test? ( >=dev-haskell/generic-deriving-1.11 <dev-haskell/generic-deriving-2 >=dev-haskell/hspec-2 <dev-haskell/hspec-3 )
>=dev-haskell/tagged-0.7:=[profile?] <dev-haskell/tagged-1:=[profile?] >=dev-lang/ghc-9.0.2:=