2000-03-17  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* configure.in: Added the missing POSIX_NO_YIELD and
	POSIX_NO_PRIORITIES warning messages.

	* configure.in: Use AC_TRY_RUN instead of AC_TRY_LINK, to test for
	real thread support. On solaris pthread_create can be linked to
	even in -lc, but it doesn't work then.

	* configure.in: Don't use priorities for threads, when the
	minimal/maximal priorities couldn't be determined at configure
	time.

	* configure.in, gthread.c: Always define GSystemThread in
	glibconfig.h to represent a system thread.

	* configure.in: Do not use native recursive threads, when
	possibe. We use some features, that they do not expose (namely the
	depth counter).

	* glib.h, gthread.c: Redefined GStaticRecMutex. The functions are
	now implemented in a different way, which should be way
	faster. Alsothere are now functions g_static_rec_mutex_unlock_full
	and g_static_rec_mutex_lock_full to leave/enter ...