anchor.diff:  , libpng
   , zlib
   
  -, infinality ? false
  -  , freetype2-infinality-ultimate
  -
  -, glib /* passthru only */
  +/* passthru only */
  +, glib
   }:
  -
  -# NOTE: freetype2-infinality-ultimate must be updated in unison
  -#       with freetype.
   
   let
     inherit (stdenv.lib)
  
positive.code: in
  
  stdenv.mkDerivation rec {
    name = "freetype-2.6.4";
  
    src = fetchurl {
      urls = [
  
negative.code:       "mirror://sourceforge/freetype/${name}.tar.bz2"
      ];
      allowHashOutput = false;
      sha256 = "e20a6e1400798fd5e3d831dd821b61c35b1f9a6465d6b18a53a9df4cf441acf0";
    };
  
    buildInputs = [
  