I have tested cedet-cvs in Ubuntu 8.04 using Emacs 23.1.95. And I got the same compile errors.
I also test cedet-cvs using Emacs 23.1 both on Windows and Linux, it's ok.
So the problem only comes up with the pretest Emacs version 23.1.95(23.1.94 have the same problem), and the built-in cedet in Emacs 23.1.95 also has some other problems.
I'm worried the consistency of built-in cedet in emacs 23.2 and cedet-cvs.