Auto merge of #5171 - rtsuk:gn-compatible-depfiles, r=alexcrichton
authorbors <bors@rust-lang.org>
Wed, 14 Mar 2018 17:12:26 +0000 (17:12 +0000)
committerbors <bors@rust-lang.org>
Wed, 14 Mar 2018 17:12:26 +0000 (17:12 +0000)
Gn compatible depfiles

Fixes https://github.com/rust-lang/cargo/issues/5162.


Trivial merge