anchor.diff:  
     mesonFlags = [
       "-Denable_docs=false"  # gtk-doc
  +    "-Dgir=true"
     ];
   
     # preCheck = /* Fontconfig fails to load default config in test */
  
positive.code:     cairo
      fontconfig
      freetype
      glib
      gobject-introspection
      harfbuzz_lib
  
negative.code: , cairo
  , fontconfig
  , freetype
  , fribidi
  , glib
  , gobject-introspection
  , harfbuzz_lib
  