anchor.diff:    tkremindPatch = optionalString tkremind ''
       substituteInPlace scripts/tkremind --replace "exec wish" "exec ${tk}/bin/wish"
     '';
  -in stdenv.mkDerivation rec {
  +in
  +stdenv.mkDerivation rec {
     pname = "remind";
  -  version = "03.03.05";
  +  version = "03.03.06";
   
     src = fetchurl {
       url = "https://dianne.skoll.ca/projects/remind/download/remind-${version}.tar.gz";
  -    sha256 = "sha256-Ye0X2Gvek/pyaNVxGKL773OWJvC4I6F5nEsRQgzWbsE=";
  +    sha256 = "sha256-lpoMAXDJxwODY0/aoo25GRBYWFhE4uf11pR5/ITZX1s=";
     };
   
     nativeBuildInputs = optional tkremind makeWrapper;
  
positive.code: {lib, stdenv, fetchurl, tk, tcllib, makeWrapper
  , tkremind ? true
  } :
  
  assert tkremind -> tk != null;
  assert tkremind -> tcllib != null;
  
negative.code:     wrapProgram $out/bin/tkremind --set TCLLIBPATH "${tclLibPaths}"
    '';
  
    meta = with lib; {
      homepage = "https://dianne.skoll.ca/projects/remind/";
      description = "Sophisticated calendar and alarm program for the console";
      license = licenses.gpl2Only;
      maintainers = with maintainers; [ raskin kovirobi ];
      platforms = platforms.unix;
    };
  }
  