{ pkgs, darwin, stdenv, callPackage, callPackages, newScope }:

let
  apple-source-releases = callPackage ../os-specific/darwin/apple-source-releases { };
in

(apple-source-releases // {

  callPackage = newScope (darwin.apple_sdk.frameworks // darwin);

  apple_sdk = callPackage ../os-specific/darwin/apple-sdk { };

  binutils = callPackage ../os-specific/darwin/binutils {
    inherit (darwin) cctools;
  };

  cctools = callPackage ../os-specific/darwin/cctools/port.nix {
    inherit (darwin) libobjc maloader;
    stdenv = if stdenv.isDarwin then stdenv else pkgs.libcxxStdenv;
    xctoolchain = darwin.xcode.toolchain;
  };

  cf-private = callPackage ../os-specific/darwin/cf-private {
    inherit (apple-source-releases) CF;
    inherit (darwin) osx_private_sdk;
  };

  DarwinTools = callPackage ../os-specific/darwin/DarwinTools { };

  maloader = callPackage ../os-specific/darwin/maloader {
    inherit (darwin) opencflite;
  };

  insert_dylib = callPackage ../os-specific/darwin/insert_dylib { };

  ios-cross = callPackage ../os-specific/darwin/ios-cross {
    inherit (darwin) binutils;
  };

  libobjc = apple-source-releases.objc4;

  opencflite = callPackage ../os-specific/darwin/opencflite { };

  osx_private_sdk = callPackage ../os-specific/darwin/osx-private-sdk { };

  security_tool = darwin.callPackage ../os-specific/darwin/security-tool {
    Security-framework = darwin.apple_sdk.frameworks.Security;
  };

  stubs = callPackages ../os-specific/darwin/stubs { };

  swift-corefoundation = callPackage ../os-specific/darwin/swift-corefoundation { };

  usr-include = callPackage ../os-specific/darwin/usr-include { };

  xcode = callPackage ../os-specific/darwin/xcode { };

})