libgtk1.2-dev uninstallable

[<mcclosk@cats.ucsc.edu>]

This is a potato system kept up to date with the most recent additions
to proposed-updates, and security.

In an effort to solve a problem I have with Sawmill menus, I tried to
install the package libgtk1.2-dev, but got the response below:

----------------------------------------------------------------------
root# apt-get install libgtk1.2-dev
Reading Package Lists... Done
Building Dependency Tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

Sorry, but the following packages have unmet dependencies:
  libgtk1.2-dev: Depends: libgtk1.2 (= 1.2.7-1) but 1.2.8-1 is to be
  installed 
E: Sorry, broken packages
root#
----------------------------------------------------------------------
I have the most recent version of libgtk1.2:

----------------------------------------------------------------------
root# apt-get install libgtk1.2
Reading Package Lists... Done
Building Dependency Tree... Done
Sorry, libgtk1.2 is already the newest version
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
----------------------------------------------------------------------

This is my sources.list:

deb http://http.us.debian.org/debian potato main contrib non-free
deb http://non-US.debian.org/debian-non-US potato/non-US main contrib non-free
deb http://http.us.debian.org/debian dists/proposed-updates/
deb http://security.debian.org/ stable/updates main  

Jim McCloskey