How to build for Mac to make compute shaders work?

The problem is that even though 5.6 supposed to compile compute shaders for Metal, it didn't work for me.

I created a simple project: compute shader is used to render a fractal. Then I just made Mac OS build.

And Mac users report the project runs, but the fractal is not being built. Looks like compute shader doesn't work. What could be wrong? Are there some special configuration things I Must take care of to make it work? Or maybe it's because I build on Windows editor, and that is the problem? Any tips would be appreciated.

If anyone's curious, here's the build: https://drive.google.com/open?id=0B22OLebalqvJQzBCUVFkLUtmYjA

If it works, it should look like this: http://i.imgur.com/YqwA1Lz.png