PR libgcj/13212:
	* configure.ac: Check for pthread_getattr_np(). Remove
	GC_PTHREAD_SYM_VERSION detection.
	* include/gc.h (GC_register_my_thread, GC_unregister_my_thread,
	GC_get_thread_stack_base): New declarations.
	* pthread_support.c (GC_register_my_thread, GC_unregister_my_thread,
	GC_get_thread_stack_base): New functions.
	(GC_delete_thread): Don't try to free the first_thread.
	* misc.c (GC_init_inner): Use GC_get_thread_stack_base() if possible.
	(pthread_create_, constr): Removed.
	(pthread_create): Don't rename.
	* include/gc_ext_config.h.in: Rebuilt.
	* include/gc_pthread_redirects.h (pthread_create): Define 
	unconditionally.
	* include/gc_config.h.in: Rebuilt.
	* configure: Rebuilt.
libjava
	* java/lang/natThread.cc (_Jv_AttachCurrentThread): Attach thread
	to GC.
	(_Jv_DetachCurrentThread): Detach thread from GC.
	* include/boehm-gc.h (_Jv_GCAttachThread, _Jv_GCDetachThread):
	Declare.
	* boehm.cc (_Jv_GCAttachThread): New function.
	(_Jv_GCDetachThread): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116313 138bc75d-0d04-0410-961f-82ee72b054a4