{ nixpkgs ? import {}, compiler ? "default", doBenchmark ? false }: let inherit (nixpkgs) pkgs; f = { mkDerivation, aeson, base, bytestring, http-api-data , opaleye, postgresql-simple, product-profunctors, servant , servant-server, stdenv, text, time, wai, wai-logger, warp }: mkDerivation { pname = "mateamt"; version = "0.0.0.0"; src = ./.; isLibrary = false; isExecutable = true; executableHaskellDepends = [ aeson base bytestring http-api-data opaleye postgresql-simple product-profunctors servant servant-server text time wai wai-logger warp ]; description = "A whole new matemat"; license = stdenv.lib.licenses.agpl3; }; haskellPackages = if compiler == "default" then pkgs.haskellPackages else pkgs.haskell.packages.${compiler}; variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id; drv = variant (haskellPackages.callPackage f {}); in if pkgs.lib.inNixShell then drv.env else drv