mkdep(1) on OpenBSD

The text 0b5b30df5b32, as OpenBSD 4.9, OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4, OpenBSD 4.3, OpenBSD 4.2 shipped it.

construct Makefile dependency list

Flags it lists