One should never hack at the kernal when it is not necessary.
Simply make sure that /dev is not writable by anyone but root
and the unlinking problem goes away. No one but root should
be fiddling with the /dev directory anyway.
--
Jon Biggar
{allegra,burdvax,cbosgd,hplabs,ihnp4,sdccsu3,trw-unix}!sdcrdcf!jonab