Sun May 6 17:05:00 2001 Robert Collins <rbtcollins@hotmail.com>

Sun May  6 17:05:00 2001  Robert Collins <rbtcollins@hotmail.com>
	* thread.h (pthread_cond): New element cond_access to allow atomic broadcasts.
	* thread.cc (pthread_cond::pthread_cond): Initialise cond_access.
	(pthread_cond::~pthread_cond): Destroy cond_access.
	(pthread_cond::Broadcast): Use cond_access.
	(pthread_cond::Signal): Use cond_access.
	(pthread_cond_wait): Use cond_access.
	(pthread_cond_timedwait): Use cond_access.