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Josh Haberman <> writes:
> clang 2.8 complains with this warning a bunch of times:

clang 3.0 [-O2 -Wall -Wextra] doesn't complain at all -- and warning
about unused values from a function-like macro is pretty in C anyway
(as "optional" return values are a common idiom) -- so I'd just call
this an over-zealous warning (which has apparently been fixed in later
versions of clang).


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