Doxygen + MikTex hbox + vbox badness

Question

I have doxygen (with graphviz) outputting data to run Miktex to produce a refman.pdf. When I run the tex make the output shows a LOT of

Underfull \hbox (badness 10000) detected at line N

and quite a bit of

Underfull \vbox (badness 1163) has occurred while \output is active

Also with one run of the make.bat, tex appears to be run about 3-4 times each of the repeats

LaTeX Warning: Label(s) may have changed. Rerun to get cross-references right.

Apparently the \hbox warning isn't unusual to see, but should I be concerned about seeing so many of them and seeing the \vbox warning and repeated tex runs?

(I'll warn you now, I haven't a notion of tex, I just let doxygen and eclox handle it all for me!)

Answer 1

Underfull \hbox and \vbox warnings will display sub-optimal text in the output. If it's not visible to you, then you can probably ignore it. See What are Underfull \hboxes and \vboxes and how can I get rid of them?

It's fine to rerun a couple of times, since (La)TeX's \label-\ref system works that way. In fact, with any form of cross-referencing you will have to compile at least twice on the first run as it may take more than one compile for references to "settle". See Understanding how references and labels work.