gcc-4.0-base version probs

[michael <linux@networkingnewsletter.org.uk>]

I've started getting lots of unresolved dependencies relating to
gcc-4.0-base being a different version to that expected (see below).
This is on an unstable kernel:
$ uname -a
Linux manchester-campaigns 2.6.11-1-k7 #1 Mon Jun 20 21:26:23 MDT 2005
i686 GNU/Linux

I can't see anything in the BTS but would anybody be kind enough to help
me out (signpost me)? Thanks, Michael

$ sudo apt-get install cupsys
Reading package lists... Done
Building dependency tree... Done
You might want to run ‘apt-get -f install’ to correct these:
The following packages have unmet dependencies:
  cupsys: Depends: xpdf-utils but it is not going to be installed
  gij-4.0: Depends: gcc-4.0-base (= 4.0.2-4) but 4.0.2-5 is to be
installed
  libgcj6: Depends: gcc-4.0-base (= 4.0.2-4) but 4.0.2-5 is to be
installed
  libstdc++6: Depends: gcc-4.0-base (= 4.0.2-4) but 4.0.2-5 is to be
installed
E: Unmet dependencies. Try ‘apt-get -f install’ with no packages (or
specify a solution).