anchor.diff:        "--with-boost-libdir=${boost.out}/lib"
       ];
   
  +    nativeBuildInputs = [ pkgconfig autoreconfHook gettext ];
       buildInputs = [
  -      ETL boost cairo gettext glibmm mlt-qt5 libsigcxx libxmlxx pango
  -      pkgconfig autoreconfHook
  +      ETL boost cairo glibmm mlt-qt5 libsigcxx libxmlxx pango
       ];
     };
   in
  
positive.code: 
      postUnpack = "sourceRoot=\${sourceRoot}/ETL/";
  
      buildInputs = [ autoreconfHook ];
    };
  
    synfig = stdenv.mkDerivation rec {
  
negative.code: 
    preConfigure = "./bootstrap.sh";
  
    nativeBuildInputs = [ pkgconfig autoreconfHook gettext ];
    buildInputs = [
      ETL boost cairo glibmm gtk3 gtkmm3 imagemagick intltool
      libjack2 libsigcxx libxmlxx makeWrapper mlt-qt5
      synfig which defaultIconTheme
    ];
  
    postInstall = ''
  