How to resume drm-openchrome development

[Kevin Brace]

Hi,

I am sending this posting to dri-devel mailing list and Dave Airlie.
This is sort of a summary of where OpenChrome and drm-openchrome is now.

https://lists.freedesktop.org/archives/dri-devel/2016-August/116736.html

I know that drm-openchrome is still not mainlined, and I am not the original developer, but since there was a talk of removing or putting DRI1 into probationary status (that's the way I see it), I will like to start putting more time into working on drm-openchrome.
Last time I tried, I tried to merge the drm-openchrome's VIA DRM with Linux 4.2 kernel on my development computer, but I ran into so many compilation problems that I stopped working on it.
How can I resolve these compilation problems?
Back then I was surprised to see so many compilation problem even though there was only 3 minor version difference between 3.19 and 4.2. 
Also, I recall seeing a posting from Dave Airlie to James Simmons (on Openchrome-devel mailing list) some years ago that appear to look like Dave was not happy with certain aspects of drm-openchrome at the time.
What were they, and how can I tackle the problem?

Regards,

Kevin Brace
OpenChrome Project Maintainer / Developer