anchor.diff:  }:
   
   let
  -  inherit (stdenv.lib)
  -    enFlag
  +  inherit (lib)
  +    boolEn
       optionals
       optionalString;
   
  
positive.code:   };
  in
  stdenv.mkDerivation rec {
    name = "ncmpc-0.27";
  
    src = fetchurl {
      url = "https://www.musicpd.org/download/ncmpc/0/${name}.tar.xz";
      sha256 = "f9a26a3fc869cfdf0a16b0ea3e6512c2fe28a031bbc71b1d24a2bf0bbd3e15d9";
    };
  
    nativeBuildInputs = [
      autoconf
      autoconf-archive
      automake
      gettext
      makeWrapper
    ];
  
    buildInputs = [
  
negative.code:     ncmpc-lyrics-plugins
    ];
  
    preConfigure = optionalString (lirc != null)
      /* upstream lirc doesn't have a pkg-config file */ ''
      export LIBLIRCCLIENT_CFLAGS="-I${lirc}/include/lirc"
      export LIBLIRCCLIENT_LIBS="-llirc_client"
  