title: Compiling gRPC using MSYS2/Mingw32
body: <p>I've come across an issue whilst trying to compile the latest branch of grpc under MSYS2, using mingw64 as suggested by the official installation guide.</p>
  
  <p>The latest gcc for msys2 is 5.2.0, which isn't exactly on good terms with grpc. Still, downgrading to 4.9.1 helped a bit. Through a lot of manual editing of the makefile and a couple C headers, I was finally able to compile all the dependencies. As far as I can tell, most objects had successfully compiled. However, make keeps failing with the error "no target to make libgrp.dll, required by shared_c"(might not be perfect wording). I end up with botched static libs that are recognized by Qt as lacking symbols.</p>
  
  <p>I would greatly appreciate a reliable compilation guide for grpc, and/or precompiled binaries fit for Qt 5.5 32-bit. I know the project is not too mature just yet, but it looks very promising and I can't wait to work with it!</p>
  
  <p>Many thanks!</p>