anchor.diff:    version = "7-3";
   
     src = fetchurl {
  -      url    = https://luarocks.org/lua-iconv-7-3.src.rock;
  -      sha256 = "03xibhcqwihyjhxnzv367q4bfmzmffxl49lmjsq77g0prw8v0q83";
  -  };
  -  disabled = ( luaOlder "5.1");
  -  propagatedBuildInputs = [ lua ];  
  +    url    = https://luarocks.org/lua-iconv-7-3.src.rock;
  +    sha256 = "03xibhcqwihyjhxnzv367q4bfmzmffxl49lmjsq77g0prw8v0q83";
  +  };
  +  disabled = ( luaOlder "5.1" );
  +  propagatedBuildInputs = [ lua ];
     buildType = "builtin";
   
     meta = {
       homepage = "http://ittner.github.com/lua-iconv/";
  -    description="Lua binding to the iconv";
  +    description = "Lua binding to the iconv";
       license = {
         fullName = "MIT/X11";
       };
  
positive.code:   pname = "say";
    version = "1.3-1";
  
           knownRockspec = (fetchurl {
        url    = https://luarocks.org/say-1.3-1.rockspec;
        sha256 = "0bknglb0qwd6r703wp3hcb6z2xxd14kq4md3sg9al3b28fzxbhdv";
    }).outPath;
  
         src = fetchurl {
        url    = https://github.com/Olivine-Labs/say/archive/v1.3-1.tar.gz;
        sha256 = "1jh76mxq9dcmv7kps2spwcc6895jmj2sf04i4y9idaxlicvwvs13";
    };
         
    disabled = ( luaOlder "5.1");
    propagatedBuildInputs = [ lua ];  
    buildType = "builtin";
  
    meta = {
      homepage = "http://olivinelabs.com/busted/";
      description="Lua String Hashing/Indexing Library";
      license = {
        fullName = "MIT <http://opensource.org/licenses/MIT>";
      };
    };
  };
  
negative.code:   version = "2.5-2";
  
    src = fetchurl {
      url    = https://luarocks.org/dkjson-2.5-2.src.rock;
      sha256 = "1qy9bzqnb9pf9d48hik4iq8h68aw3270kmax7mmpvvpw7kkyp483";
    };
    disabled = ( luaOlder "5.1" ) || ( luaAtLeast "5.4" );
    propagatedBuildInputs = [ lua ];
    buildType = "builtin";
  
    meta = {
      homepage = "http://dkolf.de/src/dkjson-lua.fsl/";
      description = "David Kolf's JSON module for Lua";
      license = {
        fullName = "MIT/X11";
      };
  