Auto merge of #3557 - raphlinus:master, r=alexcrichton
authorbors <bors@rust-lang.org>
Fri, 27 Jan 2017 22:55:06 +0000 (22:55 +0000)
committerbors <bors@rust-lang.org>
Fri, 27 Jan 2017 22:55:06 +0000 (22:55 +0000)
Add dep-info generation

Work in progress: add a --dep-info flag to cargo build (and also
rustc) that outputs dependency information in a form compatible with
make and ninja, to a specified file. This will help in integrating
into other build systems.


Trivial merge