GHC HEAD broken on OS X

[austin seipp]

After doing a 'git pull origin master && ./sync-all pull origin
master', I get the following build failure when stage1 attempts to
compile the RTS code:

http://paste.debian.net/121097/

A quick glance at the errors seem to indicate this work is related to
the new events stuff for GHC. Duncan was working on this last I think
- is anybody else experiencing this failure?

-- 
Regards,
Austin