Windows CMake build does not support Unix Domain Sockets

[bprager]

Windows native CMake build compiles but does not seem to enable Unix Domain Sockets.

It compiles successfully but the broker fails:

> mosquitto.exe --verbose --port \tmp\mosquitto.sock
1689815320: Error: Invalid port specified (0).

[rafael-biz]

Same problem here with version 2.0.17 on Windows.

I'm trying to start Mosquitto with a Unix Domain Socket listener, but it displays:

1706530473: Error: Invalid port value (0).
1706530473: Error found at .\mosquitto.conf:1.

This is the mosquitto.conf file:

listener 0 /tmp/mosquitto.sock

I'm starting mosquitto this PowerShell command:

& 'C:\Program Files\mosquitto\mosquitto.exe' -c .\mosquitto.conf -v