anchor.diff:  
     cmakeFlags = ''
       -DSC_WII=OFF
  -    -DSC_EL=${if useSCEL then "ON" else "OFF"} 
  +    -DSC_EL=${if useSCEL then "ON" else "OFF"}
     '';
   
     nativeBuildInputs = [ cmake pkgconfig ];
   
  -  buildInputs = [ 
  +  buildInputs = [
       gcc libjack2 libsndfile fftw curl libXt qt readline ]
       ++ optional useSCEL emacs;
   }
  
positive.code:     sha256 = "11khrv6jchs0vv0lv43am8lp0x1rr3h6l2xj9dmwrxcpdayfbalr";
    };
  
    # QGtkStyle unavailable
    patchPhase = ''
      substituteInPlace editors/sc-ide/widgets/code_editor/autocompleter.cpp \
  
negative.code: , libXt, qt, readline
  , useSCEL ? false, emacs
  }:
  
  let optional = stdenv.lib.optional; in
  
  stdenv.mkDerivation rec {
    name = "supercollider-3.6.6";
  
    meta = {
  