X11 has a dependency on data-default so that it can supply an instance for the Default class. But the data-default package has a bunch of other dependencies to provide various instances, that X11 doesn’t seem to need. The data-default-class package supplies just the type class, which seems sufficient for X11.
X11 has a dependency on data-default so that it can supply an instance for the Default class. But the data-default package has a bunch of other dependencies to provide various instances, that X11 doesn’t seem to need. The data-default-class package supplies just the type class, which seems sufficient for X11.