anchor.diff: -{ lib, stdenv
  +{ stdenv
  +, lib
   , meson
   , ninja
   , pkg-config
  
positive.code:     rev = version;
      sha256 = "1phgp8fs0dlj74kbkqlvfniwc32daz47b3pvsxlfxqzyrp77xrfm";
    };
  
    nativeBuildInputs = [
      asciidoc
  
negative.code:       (p: [ p.pygobject3 p.dbus-python p.python-dbusmock ]))
    ];
  
    postPatch = ''
      patchShebangs scripts tests
    '';
  