Description: initialize pthread_workqueue library before using it
 Not sure why Darwin doesn't require this..
Author: Mark Heily <mark@heily.com>

Index: libdispatch-0.1/src/queue.c
===================================================================
--- libdispatch-0.1.orig/src/queue.c	2010-07-01 23:13:18.000000000 -0400
+++ libdispatch-0.1/src/queue.c	2010-07-01 23:13:34.000000000 -0400
@@ -1062,6 +1062,7 @@
 	_dispatch_thread_setspecific(dispatch_queue_key, &_dispatch_main_q);
 
 	_dispatch_queue_set_width_init();
+    pthread_workqueue_init_np();
 }
 
 void
