[PATCH] D30991: [Driver] Fix cross compiling with Visual Studio 2017

[Nico Weber via Phabricator via cfe-commits]

thakis added a comment.

What env vars are needed here? Reading an env file seems a bit inelegant, could we pass the values of these env vars as flags instead?

For example, MSVC2015 needs %INCLUDE%, but for cross-compiling (and for building on Windows without requiring env vars to be set we added the -imsvc flag instead of doing something like this.


https://reviews.llvm.org/D30991