Patch: Regression PR target/26792, Check for _Unwind_IPInfo

[Benjamin Kosnik]

2006-07-17  Steve Ellcey  <sje@cup.hp.com>

	PR target/26792
	* configure.ac: Use GCC_CHECK_UNWIND_GETIPINFO to
	define HAVE_GETIPINFO.
	* libsupc++/eh_personality.cc: Check HAVE_GETIPINFO.

This is fine.

-benjamin