[Pharo-users] How To Bind To External Libraries in Pharo ?

Hi Experts, How can I connect to libraries of the type that I would "include" in a C program? Must I re-compile Pharo to include them or is there some other way to do this at run-time? I'm looking at some Gnome libraries (GTK+, Gstreamer) which I would like to use from Pharo. Thanks, Bill