WITHOUT_CLANG=yes fix

[paradox]

> > http://svn.freebsd.org/viewvc/base/head/Makefile.inc1?revision=210116&view=markup
> > 
> > plz fix buidl without clang
> > 
> > # XXX: There is no way to specify bootstrap tools
> depending on MK-flags
> > # with different per-architecture default values.
> Always build tblgen.
> 
> Did you read that "XXX" comment?
> 

why do i need to build bootstrap clang "utils" if i don't use it?