Misleading message "Failed to load libjack DLL: -226099216libjack not found, so do not try to load jack_client_open ffs !"

[JoergAtGithub]

Bug Description

One of the new 2.4.0 features is JACK support on Windows. This probes for a JACK istallation at every startup and prints the following message, if it's not detect (this will be the case for most Windows users):

Failed to load libjack DLL: -226099216libjack not found, so do not try to load jack_client_open ffs !

In difference to most other messages in the Mixxx log, it has no prefix like Info or Debug and appears always independend of developer mode:

Version

2.4.0

OS

Windows

[Swiftb0y]

IIRC this is also the case on macos (referencing libjack.dylib iirc) and I'm pretty sure this comes from portaudio.

[EchoCoder1729]

probably need to re-compile portaudio without JACK support. Maybe there are some environment variables to cause the portaudio to not try to load the jack library on windows?

[JoergAtGithub]

The jack support is a feature, that works. There is no failure with it, and therefore no reason to disable JACK support. There is just the misleading log message, if JACK is not installed on the system.

[JoergAtGithub]

The origin of the message is here: https://github.com/jackaudio/jack2/blob/4f58969432339a250ce87fe855fb962c67d00ddb/common/JackWeakAPI.c#L72

[JoergAtGithub]

Bugreport upstream JACK: jackaudio/jack2#998

[daschuer]

This is probably not easy in terms of new comer contributons.