Check for __OpenBSD__.  From Matthieu Herrb <Mathieu.Herrb@mipnet.fr>
Check for __OpenBSD__.  From Matthieu Herrb <Mathieu.Herrb@mipnet.fr>

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars