* Add needed x11 and xext dependencies
Thanks to everyone who submitted patches, tested, and reviewed this update.
PR: 201340
Submitted by: Bengt Ahlgren <bengta at sics.se>, Kevin Bowling <kbowling@>,
Oleg <zoleg at vusovich.ru>,
Tomoaki AOKI <junchoon at dec.sakura.ne.jp>,
Ultima <Ultima1252 at gmail.com>
Tested by: Jeremy Cox <jeremy.m.cox at gmail.com>,
O. Hartmann <ohartman at zedat.fu-berlin.de>,
Tomoaki AOKI
Approved by: danfe
Differential Revision: https://reviews.freebsd.org/D7569
