Where is iso-8859-7.def?

Hi

I'm trying to use tetex on Debian 3.0/testing with Greek. The problem is
that if I write 

\usepackage[iso-8859-7]{inputenc}

! LaTeX Error: File `iso-8859-7.def' not found.

Why isn't it included?

Thanks in advance

-- 
Preben Randhol ------------------------ http://www.pvv.org/~randhol/ --
                          «1984 is soon coming to a computer near you.»