Setup:

You need the latest godot headers in the base of this repository Easiest way to do this is

git clone https://github.com/GodotNativeTools/godot_headers

You also need some C compiler to run the scons build, but run

scons

in the root directory

This only works on Godot master branch at the moment, so you need to clone and build follow instructions at http://docs.godotengine.org/en/latest/development/compiling/index.html

lastly you'll need to connect the gdlib to your compiled library.

In the godot file explorer, go to res://bin/testlib.gdnlib, double click on it, and point it to the library built from running scons in the first part. should be a *.so file or a *.dylib on windows