* miscfuncs.cc (low_priority_sleep): Correct thinko which caused SetPriority to

be called unnecessarily.
* thread.cc (pthread::init_main_thread): Call new create_cancel_event function.
(pthread::precreate): Ditto.
(pthread::postcreate): Remove cancel_event creation.
(pthread::create_cancel_event): Define new function.
* thread.h (pthread::create_cancel_event): Declare new function.

winsup/cygwin/thread.h

@@ -545,6 +545,7 @@ private:
   void precreate (pthread_attr *);
   void postcreate ();
   void set_tls_self_pointer ();
+  bool create_cancel_event ();
   static pthread *get_tls_self_pointer ();
   void cancel_self ();
   DWORD get_thread_id ();