anchor.diff:  { stdenv
  -, autoconf
  -, automake
   , autoreconfHook
   , boost
   , db48
  
positive.code: , zeromq
  , zlib
  , withGui
  }:
  
  with stdenv.lib;
  
negative.code:   };
  
    nativeBuildInputs = [ pkgconfig autoreconfHook ];
    buildInputs = [
      openssl db48 boost zlib miniupnpc libevent zeromq
      unixtools.hexdump
    ];
  
    configureFlags = [ "--with-boost-libdir=${boost.out}/lib" ];
  
  