Guile-gnome package broken in Guix

Hi

I would really like to start creating my first gtk program with guile.

The package guile-gnome in guix is unfortunately broken and the docs and 
examples are missing.

I tried fixing the package but it seems I do not understand gtk nor 
autotools well enough to succeed.

I got these questions:

* why are there no TARGET_DIR in the makefiles?
* what is the purpose of the "guilesite" variable?
* what is the purpose of the files in /defs/gnome/defs ? The makefile 
there seems to try to check for stuff in DEFS_HEADER_DIR = /usr/include

Thanks in advance.

-- 
Cheers Swedebugia