Call g_thread_impl_init(), as g_thread_init won't call it.

Call g_thread_impl_init(), as g_thread_init won't call it.

2001-01-30  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* gthread/gthread-impl.c (g_thread_init_with_errorcheck_mutexes): Call
	g_thread_impl_init(), as g_thread_init won't call it.

	* glib/glib-sections.txt, glib/tmpl/threads.sgml: Added
	g_static_mutex_free

	* gthread.c, gthread.h: Added g_static_mutex_free to allow using
	GStaticMutexes with limited lifetime without leaking.

	* configure.in: GStaticMutex doesn't have to provide extra space
	for debugging information for G_ERRORCHECK_MUTEXES, as then the
	non-default implementation (runtime_mutex) is used anyway.