Thanks a million for your help!
As you assumed correctly, doxymacs was indeed the culprit. After removing it, cedet loads without any hick-up.
> Gesendet: Mittwoch, 01. Mai 2013 um 22:28 Uhr
> Von: "Tomasz Gajewski" <tomga@...>
> An: "Martin Zapf" <martin.zapf@...>
> Cc: cedet-devel@...
> Betreff: Re: [CEDET-devel] Emacs24 Cedet launch error
> "Martin Zapf" <martin.zapf@...> writes:
> > This error occurs even if I use an init file for emacs that only
> > contains the following line: (load-file
> > "~/tools/emacs/cedet/cedet-devel-load.el")
> Problem is probably due to some package installed and initialized in
> /etc/emacs/site-start.d or similar (I assume you are on some linux
> flavour). If I correctly remember doxymacs is a package that causes this
> problem although it is probably not the only one.
> Generally this problem is an unpleasant one because there is no
> workaround on the user side. You can disable site init but you loose
> initializaion of all other packages so I don't consider this a good
> solution. You can only uninstall package from system and that is what
> I've done.
> Hope this helps.
> Tomasz Gajewski