I'd like to backport the set of signed overflow patches for 4.2, now that they are (almost) all in mainline. These are the patches which add -fstrict-overflow and -Wstrict-overflow. It was the additional reliance of strict signed overflow in 4.2 which led to a long discussion a couple of months ago.
This would be a new feature for 4.2, of course. Is it OK to do the backport? Thanks. Ian
