This also works at the command line (initially posted to the development
You can update other packages not affected by the current broken
dependencies by running the following as root:
--exclude=evolution-webcal --exclude=gaim --exclude=gnome-panel-devel
Obviously, all the above is typed in at the command prompt as one line.
See this page (bottom) if you would like to know how to work out issues
such as this for yourself: