anchor.diff:  , cups
   , expat
   , fontconfig
  +, fribidi
   , gdk-pixbuf
   , glib
   , gobject-introspection
  
positive.code:     cups
      expat
      fontconfig
      gdk-pixbuf
      glib
      gobject-introspection
  
negative.code: 
    sources = {
      "3.24" = {
        version = "3.24.5";
        sha256 = "0be5fb0d302bc3de26ab58c32990d895831e2b7c7418d0ffea1206d6a3ddb02f";
      };
      "3.91" = {
        version = "3.91.1";
  