r242660 - Support mingw toolchain include and lib directories on Arch Linux.

[Hans Wennborg]

Merged to 3.7 together with r242667 in r243061.

On Sun, Jul 19, 2015 at 11:38 PM, Yaron Keren <yaron.keren at gmail.com> wrote:
> Author: yrnkrn
> Date: Mon Jul 20 01:38:39 2015
> New Revision: 242660
>
> URL: http://llvm.org/viewvc/llvm-project?rev=242660&view=rev
> Log:
> Support mingw toolchain include and lib directories on Arch Linux.
> Thanks to Thomas Pochtrager for testing this!