[PATCH] Resubmit "Improve Windows toolchain support for non-standard environments."

[Zachary Turner]

Fix review issues.  Also check the target triple to determine which toolchain to use (x86, x64, or arm).

http://reviews.llvm.org/D5892

Files:
  lib/Driver/ToolChains.h
  lib/Driver/Tools.cpp
  lib/Driver/WindowsToolChain.cpp
-------------- next part --------------
A non-text attachment was scrubbed...
Name: D5892.15206.patch
Type: text/x-patch
Size: 6927 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20141021/3ab36e18/attachment.bin>