K 10
svn:author
V 6
brooks
K 8
svn:date
V 27
2018-03-02T22:34:53.034815Z
K 7
svn:log
V 402
Work around the lack of definition of union semun per POSIX.

When feasible do this by adding -D_WANT_SEMUN to CFLAGS or CXXFLAGS.
Where this fails due to ports not honoring C*FLAGS, patch using
__FreeBSD_version to enable the definition.

PR:		224300, 224443 (exp-run)
Approved by:	portmgr (antoine)
Exp-run:	antoine
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14137

END