[[!comment format=mdwn
 username="http://joeyh.name/"
 ip="2001:4978:f:21a::2"
 subject="comment 6"
 date="2013-07-25T17:57:31Z"
 content="""
I've made it always build with -threaded. Did not see anything obvious I could do to not make it hang with the non-threaded runtime, other than forking a separate feeder process. -threaded may make it not build on a few systems with sustandard ghc support (like sparc). 
"""]]