core/pkgs/by-name/ke/kerberos/packages.nix

{ ... }:
res: pkgs: super:

with pkgs; {
  krb5 =
    callPackage ./krb5.nix { inherit (buildPackages.darwin) bootstrap_cmds; };
  libkrb5 = krb5.override { type = "lib"; };

  heimdal = callPackage ./heimdal.nix {
    inherit (darwin.apple_sdk.frameworks)
      CoreFoundation Security SystemConfiguration;
    autoreconfHook = buildPackages.autoreconfHook269;
  };
}