mozilla/rust — pull request #13024 by brson (2014-03-20 05:53:01+00:00)
Title: mk: Simplify how prepare.mk, install.mk, and dist.mk deal with stages

The only stage that can be installed from is 2 everywhere but windows,
3 on windows.

Lightly tested. Not actually tested on Windows, but I did confirm that a *similar* change fixed the problem on Widows.

Closes #12799