FreeOrion

I've encountered this doxygen problem before, and according to my records last time I built FreeOrion was October 2009. So the problem is not any way new. When building GG in clean tree I get:

I remember fixing this last time simply by running doxygen manually before builod, but as long as build depends on doxygen documentation having been built, it really should take care of it itself - or at least check the situation beforehand ("cmake ." should complain)

Also, currently just some doxygen documentation is required. Generating it as part of build would result up-to-date documentation. I got successful build from tree where I had run doxygen 2008(?)

Could you file a bug on this on the GG SF.net page, so it doesnt get lost? It looks like maybe an in-source vs. out-of-source build.