anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "guitarix";
  -  version = "0.42.1";
  +  version = "0.44.1";
   
     src = fetchurl {
       url = "mirror://sourceforge/guitarix/guitarix2-${version}.tar.xz";
  -    sha256 = "101c2hdpipj3s6rmva5wf3q9hfjv7bkyzi7s8sgaiys8f7h4czkr";
  +    sha256 = "d+g9dU9RrDjFQj847rVd5bPiYSjmC1EbAtLe/PNubBg=";
     };
  -
  -  patches = [
  -    (fetchpatch {
  -      name = "guitarix-gcc11.patch";
  -      url = "https://github.com/brummer10/guitarix/commit/d8f003484c57d808682025dfb07a7a1fb848afdc.patch";
  -      stripLen = 1;
  -      sha256 = "1qhlbf18cn6m9jdz3741nrdfqvznjna3daqmn9l10k5nd3asy4il";
  -    })
  -  ];
   
     nativeBuildInputs = [
       gettext
  
positive.code: , boost
  , curl
  , eigen
  , fftw
  , gettext
  , glib
  
negative.code:     boost
      curl
      eigen
      faust
      fftw
      glib
      glib-networking.out
  