anchor.diff:  
   let
     inherit (stdenv.lib)
  -    enFlag
  -    wtFlag;
  +    boolEn
  +    boolWt;
   in
  -
   stdenv.mkDerivation rec {
  -  name = "ncmpcpp-0.7.4";
  +  name = "ncmpcpp-0.7.5";
   
     src = fetchurl {
  -    url = "http://ncmpcpp.rybczak.net/stable/${name}.tar.bz2";
  -    sha256 = "d70425f1dfab074a12a206ddd8f37f663bce2bbdc0a20f7ecf290ebe051f1e63";
  +    url = "https://rybczak.net/ncmpcpp/stable/${name}.tar.bz2";
  +    sha256 = "7e4f643020b36698462879013a8b16111f8c3a4c5819cf186aed78032a41e07d";
     };
   
     buildInputs = [
  
positive.code: 
    configureFlags = [
      "BOOST_LIB_SUFFIX="
      (enFlag "outputs" outputsSupport null)
      (enFlag "visualizer" (fftw_double != null) null)
      (enFlag "clock" clockSupport null)
      "--enable-unicode"
      (wtFlag "curl" (curl != null) null)
      (wtFlag "fftw" (fftw_double != null) null)
      "--without-pdcurses"
      (wtFlag "taglib" (taglib != null) null)
    ];
  
    meta = with stdenv.lib; {
      description = "A featureful ncurses based MPD client inspired by ncmpc";
      homepage = http://ncmpcpp.rybczak.net/;
      license = licenses.gpl2Plus;
      maintainers = with maintainers; [
        codyopel
  
negative.code: { stdenv
  , fetchurl
  
  , boost
  , curl
  , fftw_double
  