Oculus Online Subsystem Plugin build fail

When trying to build a gearvr project with the Online Subsystem Oculus plugin enabled you get a build error pretty quickly:

https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.html

Occurs in Preview 2 as well :frowning:

To my understanding 4.13 has OOS built-in, no plugins are needed: Re: Can I get the userid of Oculus Platform using ... - Page 2 - Oculus Community - 439755

I just looked at it and only Windows is supported.