On Thu, Jul 06, 2017 at 06:42:04PM +0100, Alan Third wrote:
> We can make it a run time check, which would look something like
> 
>     if ([win respondsToSelector: @selector(setTabbingMode)])
>       [win setTabbingMode: NSWindowTabbingModeDisallowed];
> 
> but this will throw up compiler warnings on pre‐Sierra versions of
> macOS. I guess that’s maybe just the price to be paid.

I’ve attached a patch to master for this. Can someone on macOS 10.11
or below give it a try and confirm that it compiles and runs?
-- 
Alan Third