Fix release.nix to build against nixpkgs 17.09

Related to dhall-lang/dhall-lang#87

Author: Gabriella439

dhall.nix

@@ -0,0 +1,29 @@
+{ mkDerivation, ansi-wl-pprint, base, base16-bytestring, bytestring
+, case-insensitive, charset, containers, contravariant, cryptohash
+, deepseq, exceptions, http-client, http-client-tls, lens
+, optparse-generic, parsers, prettyprinter, stdenv, system-fileio
+, system-filepath, tasty, tasty-hunit, text, text-format
+, transformers, trifecta, unordered-containers, vector
+}:
+mkDerivation {
+ pname = "dhall";
+ version = "1.9.0";
+ sha256 = "5fc53a49c48014ec07a889abcd31b79b43c95d5f36ff494cfa33e229e5cea9c4";
+ isLibrary = true;
+ isExecutable = true;
+ libraryHaskellDepends = [
+ ansi-wl-pprint base base16-bytestring bytestring case-insensitive
+ charset containers contravariant cryptohash exceptions http-client
+ http-client-tls lens parsers prettyprinter system-fileio
+ system-filepath text text-format transformers trifecta
+ unordered-containers vector
+ ];
+ executableHaskellDepends = [
+ base optparse-generic prettyprinter system-filepath text trifecta
+ ];
+ testHaskellDepends = [
+ base containers deepseq prettyprinter tasty tasty-hunit text vector
+ ];
+ description = "A configuration language guaranteed to terminate";
+ license = stdenv.lib.licenses.bsd3;
+}

release.nix

@@ -13,6 +13,8 @@ let
  packageOverrides = pkgs: {
  haskellPackages = pkgs.haskellPackages.override {
  overrides = haskellPackagesNew: haskellPackagesOld: {
+ dhall = haskellPackagesNew.callPackage ./dhall.nix { };
+
  dhall-bash =
  pkgs.haskell.lib.justStaticExecutables
  (haskellPackagesNew.callPackage ./default.nix { });