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

{ cabal, either, safe, transformers }:

cabal.mkDerivation (self: {
  pname = "errors";
  version = "1.4.5";
  sha256 = "16m4psk1150319bd2hrswpp2h90l1hhh7w13arfhy4ylh8vscm4q";
  buildDepends = [ either safe transformers ];
  jailbreak = true;
  meta = {
    description = "Simplified error-handling";
    license = self.stdenv.lib.licenses.bsd3;
    platforms = self.ghc.meta.platforms;
  };
})
Add haskell-either version 3.0.2 and haskell-errors version 1.3.1. 2012-12-10 10:24:10 +00:00			`{ cabal, either, safe, transformers }:`

			`cabal.mkDerivation (self: {`
			`pname = "errors";`
haskell-errors: update to version 1.4.5 2014-01-01 23:21:13 +00:00			`version = "1.4.5";`
			`sha256 = "16m4psk1150319bd2hrswpp2h90l1hhh7w13arfhy4ylh8vscm4q";`
Add haskell-either version 3.0.2 and haskell-errors version 1.3.1. 2012-12-10 10:24:10 +00:00			`buildDepends = [ either safe transformers ];`
haskell-errors: jailbreak to fix build with either 4.x 2013-10-14 23:18:17 +01:00			`jailbreak = true;`
Add haskell-either version 3.0.2 and haskell-errors version 1.3.1. 2012-12-10 10:24:10 +00:00			`meta = {`
			`description = "Simplified error-handling";`
			`license = self.stdenv.lib.licenses.bsd3;`
			`platforms = self.ghc.meta.platforms;`
			`};`
			`})`