Use thr_min_stack() instead of sysconf (_SC_THREAD_STACK_MIN). if

Use thr_min_stack() instead of sysconf (_SC_THREAD_STACK_MIN). if

2002-07-03  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* gthread/gthread-solaris.c: Use thr_min_stack() instead of
	sysconf (_SC_THREAD_STACK_MIN). if stack_size is 0 on entry to
	g_thread_create_solaris_impl, also pass 0 to thr_create. Otherwise
	the stack might be to small for any nontrivial thread. Discovered
	on intel-solaris by Rajkumar Sivasamy <rajkumar.siva@wipro.com>.