xinetd-2.3.13 does not compile with gcc-4.0.0_beta20050305. The attached patch solves this. (I replaced the original lines with those that can be found in the cvs of xinetd) The ebuild that applies the patch is attached as well, it works fine for me.
Created attachment 54056 [details, diff] gcc4 patch
Created attachment 54057 [details] ebuild
added to cvs, thanks