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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!)

Toby
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    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 `\hbox`es and `\vbox`es and how can I get rid of them?](http://tex.stackexchange.com/q/138/5764) It's fine to rerun a couple of times, since (La)TeX's `\label`-`\ref` system works that way. It may take more than one compile for references to "settle". See [Understanding how references and labels work](http://tex.stackexchange.com/q/111280/5764) – Werner Jul 16 '13 at 20:49
  • Thanks Werner, if you'd like to make your comment an answer as well I can accept it as the solution. – Toby Jul 17 '13 at 11:14
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    Based on what I can see, this question is actually purely (La)TeX-related. I'm flagging this for migration over to [TeX.SE](http://tex.stackexchange.com). – Werner Jul 18 '13 at 05:02

1 Answers1

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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.

Community
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Werner
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