Fix #303 again.

cabal.project

@@ -6,3 +6,35 @@ packages:
  vendor/ltk/
  vendor/haskellVCSGUI/vcsgui/
  vendor/yi/
+
+package gi-atk
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-cairo
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gdk
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gdkpixbuf
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gio
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-glib
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gobject
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gtk
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gtk-hs
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gtkosxapplication
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-gtksource
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-javascriptcore
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-pango
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-soup
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+package gi-webkit
+ flags: -overloaded-methods -overloaded-signals -overloaded-properties
+