The thread arguing about this has gone on for a while, so I think it's time to gather some data to answer the question of just how bad it will be if we accept the decision to move ext/hash_set and ext_hash_map into a different directory and to deprecate them.
Any of you out there who put out distros or port collections: how many packages in your distro use these classes? You can grep for '# *include *<ext/hash' I'm particularly interested in the "Debian number", since the package collection is so large. Other information about use of these classes will be interesting as well.
