depot/third_party/nixpkgs/pkgs/by-name/ap/apple-sdk/common/derivation-options.nix

{ lib, config }:

self: super: {
  preBuild =
    super.preBuild or ""
    + ''
      platformPath=$out/Platforms/MacOSX.platform
      sdkpath=$platformPath/Developer/SDKs
    '';

  preInstall =
    super.preInstall or ""
    + ''
      platformPath=$out/Platforms/MacOSX.platform
      sdkpath=$platformPath/Developer/SDKs
    '';
}