anchor.diff:  , cyrus_sasl, gdbm, gpgme, kerberos, libidn, notmuch, openssl }:
   
   stdenv.mkDerivation rec {
  -  version = "20160502";
  +  version = "20160530";
     name = "neomutt-${version}";
   
     src = fetchFromGitHub {
       owner = "neomutt";
       repo = "neomutt";
       rev = "neomutt-${version}";
  -    sha256 = "0r7nn7yjhf3d7nc89gwpgrq45gqiwsrcaw1pkgmvrd16p0jhga1m";
  +    sha256 = "17v9qnd7dd7rgz5bq5qqf0b1v59ba6jlqkbmwngx4hal6zm9b9wi";
     };
   
     buildInputs =
  
positive.code:     homepage = http://www.neomutt.org;
      license = stdenv.lib.licenses.gpl2Plus;
      platforms = platforms.unix;
      maintainers = with maintainers; [ hiberno cstrahan ];
    };
  }
  
negative.code:     "--enable-pgp"
      "--enable-pop"
      "--enable-sidebar"
      "--enable-keywords"
      "--enable-smtp"
      "--enable-nntp"
      "--with-homespool=mailbox"
      "--with-gss"
      "--with-mailpath="
  