re PR target/26792 (need to use autoconf when using newly-added libgcc functions)

re PR target/26792 (need to use autoconf when using newly-added libgcc functions)

	PR target/26792
	* configure.ac: Use GCC_CHECK_UNWIND_GETIPINFO to
	define HAVE_GETIPINFO.
	* aclocal.m4: Add include of ../config/unwind_ipinfo.m4.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* Makefile.in: Regenerate.
	* libmath/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* libsupc++/eh_personality.cc: Check HAVE_GETIPINFO.

From-SVN: r115654