2008-08-28  Chris Fairles  <chris.fairles@gmail.com>

        * acinclude.m4 ([GLIBCXX_CHECK_GTHREADS]): New. Checks for gthread
	support used by c++0x thread library.
	* configure.ac: Test unconditionally.
	* configure: Regenerate.
	* config.h.in: Regenerate.

From-SVN: r139705