let buildDepError = pkg: builtins.throw '' The Haskell package set does not contain the package: ${pkg} (build dependency). If you are using Stackage, make sure that you are using a snapshot that contains the package. Otherwise you may need to update the Hackage snapshot you are using, usually by updating haskell.nix. ''; sysDepError = pkg: builtins.throw '' The Nixpkgs package set does not contain the package: ${pkg} (system dependency). You may need to augment the system package mapping in haskell.nix so that it can be found. ''; pkgConfDepError = pkg: builtins.throw '' The pkg-conf packages does not contain the package: ${pkg} (pkg-conf dependency). You may need to augment the pkg-conf package mapping in haskell.nix so that it can be found. ''; exeDepError = pkg: builtins.throw '' The local executable components do not include the component: ${pkg} (executable dependency). ''; legacyExeDepError = pkg: builtins.throw '' The Haskell package set does not contain the package: ${pkg} (executable dependency). If you are using Stackage, make sure that you are using a snapshot that contains the package. Otherwise you may need to update the Hackage snapshot you are using, usually by updating haskell.nix. ''; buildToolDepError = pkg: builtins.throw '' Neither the Haskell package set or the Nixpkgs package set contain the package: ${pkg} (build tool dependency). If this is a system dependency: You may need to augment the system package mapping in haskell.nix so that it can be found. If this is a Haskell dependency: If you are using Stackage, make sure that you are using a snapshot that contains the package. Otherwise you may need to update the Hackage snapshot you are using, usually by updating haskell.nix. ''; in { system, compiler, flags, pkgs, hsPkgs, pkgconfPkgs, ... }: { flags = {}; package = { specVersion = "2.4"; identifier = { name = "canvas"; version = "0.0.0.0"; }; license = "BSD-3-Clause"; copyright = ""; maintainer = "nek0@nek0.eu"; author = "nek0"; homepage = ""; url = ""; synopsis = "A test implementation for drawing images with SDL2 and OpenGL"; description = ""; buildType = "Simple"; isLocal = true; detailLevel = "FullDetails"; licenseFiles = [ "LICENSE" ]; dataDir = ""; dataFiles = []; extraSrcFiles = [ "CHANGELOG.md" ]; extraTmpFiles = []; extraDocFiles = []; }; components = { exes = { "canvas" = { depends = [ (hsPkgs."base" or (buildDepError "base")) (hsPkgs."affection" or (buildDepError "affection")) (hsPkgs."sdl2" or (buildDepError "sdl2")) (hsPkgs."OpenGL" or (buildDepError "OpenGL")) (hsPkgs."JuicyPixels" or (buildDepError "JuicyPixels")) (hsPkgs."JuicyPixels-extra" or (buildDepError "JuicyPixels-extra")) ]; buildable = true; hsSourceDirs = [ "app" ]; mainPath = [ "Main.hs" ]; }; }; }; } // rec { src = (pkgs.lib).mkDefault ../.; }