2009-09-16 Ivan Maidanski <ivmai@mail.ru>

2009-09-16  Ivan Maidanski <ivmai@mail.ru>
	(ivmai140.diff)

	* win32_threads.c (start_mark_threads): if pthread_create() is
	failed then don't try to create other marker threads and (after
	printing a warning) adjust GC_markers and GC_parallel values.
	* win32_threads.c (mark_mutex_event, builder_cv, mark_cv): Move
	the definition upper (to be visible in start_mark_threads()).
	* win32_threads.c (start_mark_threads): if CreateThread() or
	_beginthreadex() is failed then don't try to create other marker
	threads and (after printing a warning) adjust GC_markers,
	GC_parallel values, and destroy the event objects (either only
	some for the uncreated threads if DONT_USE_SIGNALANDWAIT or all if
	not a single thread is created).
	* win32_threads.c (GC_thr_init): Log GC_markers value (possibly
	adjusted) after start_mark_threads() call.