837fe32558
Reviewed by: bjk Reviewed by: jilles (incl formal "accept") Differential Revision: https://reviews.freebsd.org/D13650
$FreeBSD$ libopenbsd is a thin compatibility layer intended to allow a limited set of OpenBSD software to compile as part of the FreeBSD build with little or no modification. It is built as a static library and not installed for general use. Likewise, its header files are not installed.