nixpkgs/pkgs/development/libraries/haskell/either/default.nix

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{ cabal, exceptions, free, monadControl, MonadRandom, mtl
, semigroupoids, semigroups, transformers, transformersBase
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}:
cabal.mkDerivation (self: {
pname = "either";
version = "4.3.0.1";
sha256 = "1ib6288gxzqfm2y198dzhhq588mlwqxm07pcrj4h66g1mcy54q1f";
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buildDepends = [
exceptions free monadControl MonadRandom mtl semigroupoids
semigroups transformers transformersBase
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];
noHaddock = self.stdenv.lib.versionOlder self.ghc.version "7.6";
meta = {
homepage = "http://github.com/ekmett/either/";
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description = "An either monad transformer";
license = self.stdenv.lib.licenses.bsd3;
platforms = self.ghc.meta.platforms;
};
})