anchor.diff:  , lib
   , patchelf
   }:
  +
  +# https://help.resilio.com/hc/en-us/articles/206216855-Sync-2-x-change-log
   
   let
     inherit (lib)
  
positive.code:     stdenv.cc.libc
    ];
  
    version = "2.5.9";
  in
  stdenv.mkDerivation rec {
    name = "resilio-${version}";
  
negative.code:   src  = fetchurl {
      url  = "https://download-cdn.resilio.com/${version}/"
        + "linux-x64/resilio-sync_x64.tar.gz";
      sha256 = "87d9eb37714af68dc53c031e9e5f381c1130d07bc0a217f1140272024e71cf9c";
    };
  
    nativeBuildInputs = [
  