anchor.diff:  
     makeFlags = [ "rethinkdb" ];
   
  -  buildInputs = [ protobuf boost zlib curl openssl icu ]
  +  buildInputs = [ protobuf boost170 zlib curl openssl icu ]
       ++ lib.optional (!stdenv.isDarwin) jemalloc
       ++ lib.optional stdenv.isDarwin libtool;
   
  
positive.code:       query language that supports really useful queries like table
        joins and group by, and is easy to setup and learn.
      '';
      homepage    = "http://www.rethinkdb.com";
      license     = lib.licenses.asl20;
      platforms   = lib.platforms.linux;
      maintainers = with lib.maintainers; [ thoughtpolice bluescreen303 ];
  
negative.code: { lib, stdenv, fetchurl, which, m4
  , protobuf, boost170, zlib, curl, openssl, icu, jemalloc, libtool
  , python2Packages, makeWrapper
  }:
  
  