anchor.diff:      sha256 = "00nwv2pqjbmxqdc6xdm0cljq6z05lv4y6bibmhz1kih9lm0lklnk";
     };
   
  -  buildInputs = [ alsaLib autoconf automake dssi gtk ladspaH
  +  buildInputs = [ alsaLib autoconf automake dssi gtk jackaudio ladspaH
       ladspaPlugins liblo pkgconfig ];
   
     installPhase = ''
  
positive.code:       synths) with user interfaces, permitting them to be hosted
        in-process by audio applications.
      '';
      homepage = http://dssi.sourceforge.net/download.html#Xsynth-DSSI;
      license = licenses.gpl2+;
      platforms = platforms.linux;
      maintainers = [ maintainers.goibhniu ];
    };
  
negative.code: { stdenv, fetchurl, alsaLib, autoconf, automake, dssi, gtk, jackaudio,
  ladspaH, ladspaPlugins, liblo, pkgconfig }:
  
  stdenv.mkDerivation  rec {
    name = "xsynth-dssi-${version}";
  