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nixpkgs/pkgs/development/haskell-modules/default.nix

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Nix

{ pkgs, stdenv, lib, haskellLib, ghc, all-cabal-hashes
, buildHaskellPackages
, compilerConfig ? (self: super: {})
, packageSetConfig ? (self: super: {})
, overrides ? (self: super: {})
, initialPackages ? import ./initial-packages.nix
, nonHackagePackages ? import ./non-hackage-packages.nix
, configurationCommon ? import ./configuration-common.nix
, configurationNix ? import ./configuration-nix.nix
, configurationArm ? import ./configuration-arm.nix
, configurationDarwin ? import ./configuration-darwin.nix
}:
let
inherit (lib) extends makeExtensible;
inherit (haskellLib) makePackageSet;
haskellPackages = pkgs.callPackage makePackageSet {
package-set = initialPackages;
inherit stdenv haskellLib ghc buildHaskellPackages extensible-self all-cabal-hashes;
};
isArm = with stdenv.hostPlatform; isAarch64 || isAarch32;
platformConfigurations = lib.optionals isArm [
(configurationArm { inherit pkgs haskellLib; })
] ++ lib.optionals stdenv.hostPlatform.isDarwin [
(configurationDarwin { inherit pkgs haskellLib; })
];
extensions = lib.composeManyExtensions ([
nonHackagePackages
(configurationNix { inherit pkgs haskellLib; })
(configurationCommon { inherit pkgs haskellLib; })
] ++ platformConfigurations ++ [
compilerConfig
packageSetConfig
overrides
]);
extensible-self = makeExtensible (extends extensions haskellPackages);
in
extensible-self