For now you still need the protobuf depedency installed.
For OS X do:
brew install protobuf
The protoc
command should then be on your path.
In your package.json point to:
"mapnik": "https://github.com/mapnik/node-mapnik/tarball/binary",
This will give you a binary for node-mapnik@1.3.0-alpha
You might see a warning like did not find lib/binding/mapnik.node
- ignore this.