emacs-unicode-2 compile error

several days ago,an error was reported (SYNTAX_ENTRY_FOLLOW_PARENT undefined) when emerge emacs-cvs,I tried to make a patch to get it compiled,but failed.however,the problem is resolved taday after cvs update.

app-emacs/cedet-1.0_pre4-r1

maybe there is a bug in cedet-1.0_pre4-r1,everytime I open a .c file,emacs will complain that "Autoloading failed to define function semantic-default-c-setup",and it occurs even when I create a semanticdb,so I try to downgrade cedet to 1.0_pre3-r2,no problems any more.