Comment 3 for bug 846314

I'm not sure quite how this is okay dependency-wise but it seems you can install the "doxygen" package alone with Synaptic:

1. Open Synaptic Package Manager (assuming you have installed this)
2. Mark "doxygen" (marking its many unnecessary Latex dependants)
3. Go to "Custom Filters", "Marked Changes"
4. Select all the packages except "doxygen", right-click and "Unmark"
5. Click "Apply"

Will report back if I hit any issues but initial tests show it works. Haven't figured out how to do the same with apt-get but perhaps someone else can jump in.