https://bugs.winehq.org/show_bug.cgi?id=11317
--- Comment #16 from Jeff Zaroyko jeffz@jeffz.name --- Tested with 1.7.46 and wine-1.8-rc3 on OSX 10.9.5 using the demo in the URL field of this report. Confirming behaviour is the same as the original report (including the wait timed out in thread messages).
I'm not aware of a way to schedule wine onto a single core on OS X like the linux options.