anchor.diff:    ];
   
     configureFlags = [
  -    "--with-ssl=${openssl}"
  -    "--with-libexpat=${expat}"
  -    "--with-libevent=${libevent}"
       "--localstatedir=/var"
       "--sysconfdir=/etc"
       "--enable-pie"
  
positive.code:     "https://unbound.net/downloads/unbound-${version}.tar.gz"
    ];
  
    version = "1.7.0";
  in
  stdenv.mkDerivation rec {
    name = "unbound-${version}";
  
    src = fetchurl {
      urls = tarballUrls version;
      multihash = "QmZGAmDZz4SdvY3UiCDVuBofKwhBNXvSYWdYyDAQSSa3fs";
      hashOutput = false;
      sha256 = "94dd9071fb13d8ccd122a3ac67c4524a3324d0e771fc7a8a7c49af8abfb926a2";
    };
  
    buildInputs = [
      expat
      fstrm
      libevent
      libsodium
      openssl
  
negative.code:     "--enable-dnstap"
      "--enable-dnscrypt"
      "--enable-cachedb"
      "--enable-ipsecmod"
      "--with-ssl=${openssl}"
      "--with-libexpat=${expat}"
      "--with-libevent=${libevent}"
      "--with-libhiredis=${hiredis}"
      "--with-dnstap-socket-path=/run/dnstap.sock"
      "--with-pthreads"
    ];
  