* acconfig.h: Add HAVE_GAS_HIDDEN.
        * config.h: Regenerated.
        * configure.in: Add test for .hidden pseudo-op in gas.
	* configure: Regenerated.
        * crtstuff.c: Include auto-host.h.
        Emit additional .hidden pseudo-op for __dso_handle if the
        assembler knows about it.

From-SVN: r32925