libffi dependency

[Patrick Welche <prlw1 cam ac uk>]

Am I right in thinking that pygobject no longer has a direct dependency on
libffi? (just via glib?)

It seems that the only files using ffi are pygi-closure.*, and
pygi-callbacks.c:_pygi_destroy_notify_callback_closure doesn't seem
to be called anywhere.

Is it a case of long live GClosure or am I missing something?

Cheers,

Patrick