Auto merge of #1836 - alexcrichton:fix-nightly, r=alexcrichton
authorbors <bors@rust-lang.org>
Sun, 26 Jul 2015 17:02:25 +0000 (17:02 +0000)
committerbors <bors@rust-lang.org>
Sun, 26 Jul 2015 17:02:25 +0000 (17:02 +0000)
The lints for C apis were tweaked recently and 0-size structs aren't liked.
These should be empty `enum`s anyway, however, to ensure they're never created.


Trivial merge