[Vala] VAPI bindings for external lib

[Gonzalo Aguilar Delgado <gaguilar aguilardelgado com>]

Hello,

I'm modifiying babobab to support a ceph cluster. And want to do add 
several tools to position files on OSDs, show fragemntation of 
underlaying filesystems, etc. Maybe this will generate other tool, but 
for now just modifying.

The problem is that I cannot access directly to librados, libcephfs 
libraries from vala. Ehem, I can do it by just linking but figuring out 
what's the best way to do it.

I suppose that creating a binding is the best. I saw some tutorials but 
all require that library already uses GObject system that's not the case.

So, should I create a wrapping object lib, and then generate bindings 
from there?

Or should I do another way? I'm thinking about just adding dep and call 
it from vala like c. But don't know what's the best way to proceed.

Best regards,