anchor.diff:  with stdenv.lib;
   
   let
  -  luaEnv = lua.withPackages(ps: with ps;[cassowary cosmo linenoise lpeg lua-zlib lua_cliargs luaepnf luaexpat luafilesystem luarepl luasec luasocket stdlib vstruct]);
  +  luaEnv = lua.withPackages(ps: with ps;[cassowary cosmo compat53 linenoise lpeg lua-zlib lua_cliargs luaepnf luaexpat luafilesystem luarepl luasec luasocket stdlib vstruct]);
   
   in
   
  
positive.code: { stdenv, darwin, fetchurl, makeWrapper, pkgconfig
  , harfbuzz, icu
  , fontconfig, lua, libiconv
  , makeFontsConf, gentium
  
negative.code:     sha256 = "d89d5ce7d2bf46fb062e5299ffd8b5d821dc3cb3462a0e7c1109edeee111d856";
    };
  
    configureFlags = [ "--with-system-luarocks" ];
  
    nativeBuildInputs = [ autoconf automake pkgconfig makeWrapper ];
    buildInputs = [ harfbuzz icu fontconfig libiconv luaEnv ]
    ++ optional stdenv.isDarwin darwin.apple_sdk.frameworks.AppKit
    ;
  