net/mosquitto WebSockets support

From: Joseph Olatt <joji_at_eskimo.com>
Date: Wed, 16 Mar 2022 15:30:02 UTC
Hi,

I'm trying to run a mosquitto broker under FreeBSD 13.0-RELEASE on a
Raspberry Pi. It appears that Websockets support is missing. See:

  joji@nirmal> sudo service mosquitto onestart
  Starting mosquitto.
  1647444243: Error: Websockets support not available.
  1647444243: Error found at /usr/local/etc/mosquitto/mosquitto.conf:284.
  /usr/local/etc/rc.d/mosquitto: WARNING: failed to start mosquitto

The relevant lines from mosquitto.conf are:

  joji@nirmal> grep -E "^listener|^protocol" /usr/local/etc/mosquitto/mosquitto.conf
  listener 9001 192.168.50.249
  protocol websockets

The version of mosquitto is:

  mosquitto-2.0.13

Does anybody know why Websockets support is missing in the net/mosquitto
port of FreeBSD for arm64?

Thank you.
joseph


References:
[1] Output of "uname -a":
    FreeBSD nirmal 13.0-RELEASE-p6 FreeBSD 13.0-RELEASE-p6 #0: Mon Jan 10 06:33:27 UTC 2022 root@arm64-builder.daemonology.net:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC
arm64