anchor.diff:  , dbus
   , gdk-pixbuf
   , makeWrapper
  +, which
   , xvfb_run
   , nixosTests
   }:
  
positive.code:   doCheck = true;
  
    postPatch = ''
      substituteInPlace installed-tests/debugger-test.sh --subst-var-by gjsConsole $out/bin/gjs-console
    '';
  
  
negative.code:     ninja
      pkgconfig
      makeWrapper
      which # for locale detection
      libxml2 # for xml-stripblanks
    ];
  
  