anchor.diff:      "--no-faust" # todo: find out why --faust doesn't work
     ] ++ optional optimizationSupport "--optimization";
   
  -  configurePhase = ''python waf configure --prefix=$out $configureFlags'';
  +  configurePhase = ''python2 waf configure --prefix=$out $configureFlags'';
   
  -  buildPhase = ''python waf build'';
  +  buildPhase = ''python2 waf build'';
   
  -  installPhase = ''python waf install'';
  +  installPhase = ''python2 waf install'';
   
     meta = with stdenv.lib; {
       description = "A virtual guitar amplifier for Linux running with JACK";
  
positive.code: { stdenv, fetchurl, gettext, intltool, pkgconfig, python
  , avahi, bluez, boost, eigen, fftw, glib, glib_networking
  , glibmm, gsettings_desktop_schemas, gtkmm2, libjack2
  , ladspaH, librdf, libsndfile, lilv, lv2, serd, sord, sratom
  
negative.code:     sha256 = "1qj3adjhg511jygbjkl9k5v0gcjmg6ifc479rspfyf45m383pp3p";
    };
  
    nativeBuildInputs = [ gettext intltool wrapGAppsHook pkgconfig python2 ];
  
    buildInputs = [
      avahi bluez boost eigen fftw glib glibmm glib_networking.out
  