2002-01-04  Paolo Carlini  <pcarlini@unitus.it>

	* include/bits/stl_tree.h (rb_tree):  Move to...
	* include/ext/rb_tree:  ...here, new file.
        * include/Makefile.am (ext_headers):  Add new file.
        * include/Makefile.in:  Regenerate.
        * include/bits/stl_tempbuf.h (get_temporary_buffer + helper,
	return_temporary_buffer, struct temporary_buffer):  Move to...
        * include/ext/memory:  ...here.
        * testsuite/ext/headers.cc:  Include <ext/rb_tree>.
	* include/backward/tempbuf.h:  Include <ext/memory>, tweak.
	* include/backward/tree.h:  Include <ext/rb_tree), tweak.

From-SVN: r48538