EH patch for libstdc++

[Benjamin Kosnik]

> > I'd like to reach closure on this ASAP, building C++ for arm-eabi
> > has been broken for over a month now.

I'm sympathetic to your case, and agree this should be fixed without
further delay.
 
> I agree.  It's disappointing that this patch wasn't reviewed much
> more quickly in the first place, and we should certainly get it moved
> forward now.

I'm not going to be able to work on this in the near future. As always,
I would like to keep arm-eabi divergence from IA64 C++ ABI to a
minimum. Instead, we are adding more divergence for a patch that
frankly, even the original codesourcery posters express skepticism
and doubt. This is unsettling. The unresolved issues WRT forced
exceptions on arm-abi should at least be documented or answered clearly.

I would suggest giving Jason another 24 hrs to comment and then
checking in your original patch if there are no better ideas.

-benjamin