changing the subject, I dread to think what will happen when a common linked library requires a security update. You are left having to patch files in numerous places or not be protected at all.
swings and roundabouts chaps, a central repository of known good automatically updating code (ala extras) appears to work quite nicely as well as ensuring that the program you installed 6 months ago is still available even after XYZ developer ups and leaves for pastures new.