Install GDL for use in Python

Question

I need to use some GDL routines from my Python code.

In the GitHub repo of GDL project there is an example very intuitive:

>>> import GDL
>>> print GDL.function("sin",(1,))
0.841470956802

But, seeing the INSTALL.MAKE file from the repo, it appears that I have to build GDL as a Python module. The question is: How I can build/install GDL in order to be used as a Python module, like the example before?