Gregory Szorc 6f60ff2761 Bug 1411081 - Derive Rust compiler flags in configure; r=glandium
Before this commit, RUSTFLAGS was derived in rules.mk by consulting
various variables set by configure. It isn't clear to me why things
are implemented this way. We don't appear to have moz.build level
overrides for Rust compiler flags. So there doesn't appear to be a
compelling reason why we can't derive these values in configure.

So, this commit ports the code for deriving default RUSTFLAGS from
rules.mk to toolchain.configure.

The port is pretty straightforward as far as the logic goes.

MozReview-Commit-ID: JhAE9Qlo8SK

--HG--
extra : rebase_source : 6186cb81cd37c516b3d645419b9461bf501d6ba2
2017-10-24 14:42:01 -07:00
..