{ nixpkgs ? import {}, compiler ? "default", doBenchmark ? false }: let inherit (nixpkgs) pkgs; affection = with haskellPackages; callPackage( { mkDerivation, base, bytestring, clock, containers, glib, linear , monad-loops, monad-parallel, mtl, OpenGL, sdl2, stdenv, stm, text , uuid, vector }: mkDerivation { pname = "affection"; version = "0.0.0.10"; src = ./extern/affection; configureFlags = [ "-fverbose" ]; isLibrary = true; isExecutable = true; libraryHaskellDepends = [ base bytestring clock containers glib linear monad-loops monad-parallel mtl OpenGL sdl2 stm text uuid vector ]; homepage = "https://github.com/nek0/affection#readme"; description = "A simple Game Engine using SDL"; license = stdenv.lib.licenses.lgpl3; }) {}; f = { mkDerivation, aeson, base, bytestring, containers, derive-storable , JuicyPixels, JuicyPixels-extra, linear, monad-loops, OpenGL, OpenGLRaw , stdenv, sdl2, StateVar, stm, text, vector}: mkDerivation { pname = "pituicat"; version = "0.0.0.0"; src = ./.; isLibrary = false; isExecutable = true; executableHaskellDepends = [ aeson affection base bytestring containers derive-storable JuicyPixels JuicyPixels-extra linear monad-loops OpenGL OpenGLRaw sdl2 StateVar stm text vector]; license = stdenv.lib.licenses.gpl3; }; 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