how can I be notified when asynchronous process is over ?

[Alexis Sukrieh <spam sukria net>]

Hello list :)

I don't know if this is the right place for my question, feel free to 
tell me if there is a better lsit for that topic.

I'm writing a Gtk2 app which has to launch external processes. In order 
to do that I use the Glib function "g_spawn_async".

I wonder how I can be notified when it is finished. I was thinking about 
being aware of SIGCHILD but I don't know how to do that.

If someone could tell me what is the best way to do that, it would be 
great.

Thanks

Alexis.