[preliminary patch] Fix build failure with Debian gcc-4.7

[Daniel Schepler]

On Monday, July 09, 2012 01:16:06 AM Roland McGrath wrote:
> That is a lot of subtle and underdocumented hair for an arcane problem
> that doesn't exist in the standard compiler behavior.  I don't think
> we're going to do anything about this until mainline GCC has chosen to
> adopt a behavior that requires us to change.  If and when that happens,
> then we'll figure out how best to adjust the libc code.

(Shrug)...  OK, makes sense.  In the meantime, I just posted to GCC PR33763 
and let them know the proposed patch would break glibc builds.
-- 
Daniel Schepler