Summary of the "Use __unused0" discussion.

[Roland McGrath]

> If we're changing them all then I'd go for a convention that shows 
> unambiguously what part of the implementation owns that part of the 
> implementation namespace, e.g. __glibc_reservedN.

Sounds fine to me.  What I think matters most is just that we change to
being consistent across our codebase and keeping it that way in the future.
(It could even be done with some <sys/cdefs.h> macro or something, though
I don't see much benefit in that.)


Thanks,
Roland