I'm sorry but I'm still a little bit confused as to how GNU ties in
with OS X/Xcode. I already have Xcode installed, does that mean I still
need to install the entire GNUStep or is it already on my system in
some form? I know that when using XCode I can include Foundation etc.
but this is probably just the Cocoa equivalents. So... do I need all of
the libraries? Are there pieces of the main installation that I don't
need? The installation instructions are a little unclear on this.