Index: head/contrib/sendmail/include/sm/os/sm_os_freebsd.h
===================================================================
--- head/contrib/sendmail/include/sm/os/sm_os_freebsd.h	(revision 367062)
+++ head/contrib/sendmail/include/sm/os/sm_os_freebsd.h	(revision 367063)
@@ -1,43 +1,43 @@
 /*
  * Copyright (c) 2000-2001, 2018 Proofpoint, Inc. and its suppliers.
  *	All rights reserved.
  *
  * By using this file, you agree to the terms and conditions set
  * forth in the LICENSE file which can be found at the top level of
  * the sendmail distribution.
  */
 
 /*
 **  Platform definitions for FreeBSD
 */
 
 #define SM_OS_NAME	"freebsd"
 
 #define SM_CONF_SYS_CDEFS_H	1
 
 #if __FreeBSD__ >= 2
 #  include <osreldate.h> /* defines __FreeBSD_version */
 #  if __FreeBSD_version >= 199512	/* 2.2-current when it appeared */
 #     define MI_SOMAXCONN	-1	/* listen() max backlog for milter */
 #  endif /* __FreeBSD_version >= 199512 */
 #  if __FreeBSD_version >= 330000
      /* 3.3.0-release and later have strlcpy()/strlcat() */
 #    ifndef SM_CONF_STRL
 #       define SM_CONF_STRL		1
 #    endif
 #  endif
 #endif
 
 #ifndef SM_CONF_SHM
 # define SM_CONF_SHM	1
 #endif
 #ifndef SM_CONF_SEM
-# if __FreeBSD__ > 11
-#  define SM_CONF_SEM	2 /* union semun is now longer available by default */
+# if __FreeBSD_version >= 1200059
+#  define SM_CONF_SEM	2 /* union semun is no longer declared by default */
 # else
 #  define SM_CONF_SEM	1
 # endif
 #endif
 #ifndef SM_CONF_MSG
 # define SM_CONF_MSG	1
 #endif