anchor.diff:      zlib
     ];
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       homepage = http://librsync.sourceforge.net/;
       license = licenses.lgpl2Plus;
       description = "Implementation of the rsync remote-delta algorithm";
  
positive.code: }:
  
  let
    version = "2.0.1";
  in
  stdenv.mkDerivation rec {
    name = "librsync-${version}";
  
    src = fetchFromGitHub {
      version = 3;
      owner = "librsync";
      repo = "librsync";
      rev = "v${version}";
      sha256 = "4ed1c66c6b9b18f50e10288164455f0c046060f78f83565b6886a499f00cd912";
    };
  
    nativeBuildInputs = [
  
negative.code: { stdenv
  , cmake
  , fetchFromGitHub
  , lib
  , ninja
  , perl
  
  