anchor.diff:      boolWt;
   in
   stdenv.mkDerivation rec {
  -  name = "lftp-4.8.0";
  +  name = "lftp-4.8.1";
   
     src = fetchurl {
       urls = [
         "https://lftp.yar.ru/ftp/${name}.tar.bz2"
         "https://lftp.yar.ru/ftp/old/${name}.tar.bz2"
       ];
  -    multihash = "QmeVeVg9bMdfEuYcpLDfLtxH6xG9RkpwXruvMS3ThyXzEw";
  -    sha256 = "64e8b122aba45cb2c1cc0f0c2065c6e62415679aca8b13b94600bddfbf18447c";
  +    multihash = "QmZLvP354jwE7vetSK3nnZZcUxYkHoCLvjM2gU1G8EJnUX";
  +    sha256 = "3756d0d4ad756ceb90bd149870065b24337db0978a8f3386f95ffda6555db9c2";
     };
   
     nativeBuildInputs = [
  
positive.code:       boolString (expat != null) "=${expat}" ""}"
      # TODO
      #"--with-dnssec-local-validation"
      "--${boolWt (libidn != null)}-libidn"
    ];
  
    meta = with lib; {
  
negative.code:     "--with-modules"
      #"--with-sysroot"
      "--without-gnutls"
      "--${boolWt (openssl != null)}-openssl${
        boolString (openssl != null) "=${openssl}" ""}"
      "--without-included-regex"
      "--with-libresolv"
      "--${boolWt (readline != null)}-readline${
  