anchor.diff:      };
     };
   
  -  meta = with stdenv.lib; {
  +  meta = with lib; {
       description = "An OpenType text shaping engine";
       homepage = http://www.freedesktop.org/wiki/Software/HarfBuzz;
       license = with licenses; [
  
positive.code: }:
  
  let
    inherit (stdenv.lib)
      boolEn
      boolWt
      optionals
  
negative.code: { stdenv
  , fetchurl
  , lib
  , python
  
  , cairo
  