gtk and gnome-libs autogen error

["NICK KOBELJA" <nkobelja rjbagan com>]

When I compile gtk and then gnome-libs using the most recent CVS I get;

checking for gtk-config... /opt/gnome/bin/gtk-config
checking for GTK - version >= 1.1.5... *** GTK+ header files (version 1.0.2) do not match
*** library (version 1.1.9)
no


When I then make gtk+ it makes just fine.  gnome-libs isn't so forgiving.  It doesn't even get past autogen.sh.

I am running Slackware 3.5
with current gcc, etc.

Does anybody know what gna stuff to get (I've used version 1.0.2 and 1.0.1) and also which zlib to get.  Or am I off the mark.

I basically don't understand why GTK+ header files should be 1.0.2 and what the ***library (version 1.1.9) is telling me.  I tried looking at some sources but because I'm new to linux programming, I am overwhelmed.

Thanks for any help.