Tie::RefHash(3p) on OpenBSD
The text a913bf852668, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0 shipped it.
use references as hash keys
The text a913bf852668, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0 shipped it.
use references as hash keys