build mercurial with cf-private

pkgs/applications/version-management/mercurial/default.nix

···
 { stdenv, fetchurl, python, makeWrapper, docutils, unzip, hg-git, dulwich
 , guiSupport ? false, tk ? null, hg-crecord ? null, curses
-, ApplicationServices }:
+, ApplicationServices, cf-private }:
 
 let
   version = "3.5.1";
···
 
   buildInputs = [ python makeWrapper docutils unzip ];
 
-  propagatedBuildInputs = stdenv.lib.optional stdenv.isDarwin ApplicationServices;
+  propagatedBuildInputs = stdenv.lib.optionals stdenv.isDarwin
+    [ ApplicationServices cf-private ];
 
   makeFlags = "PREFIX=$(out)";
 

pkgs/top-level/all-packages.nix

···
   mercurial = callPackage ../applications/version-management/mercurial {
     inherit (pythonPackages) curses docutils hg-git dulwich;
     inherit (darwin.apple_sdk.frameworks) ApplicationServices;
+    inherit (darwin) cf-private;
     guiSupport = false; # use mercurialFull to get hgk GUI
   };