rsync equivalent of 'cp -al' ?

[Chris Dennis]

Hello rsync people

I thought I knew how to use rsync, but I can't work out how to use it to 
do the equivalent of

     cp -al dir1 dir2

where dir1 and dir2 are both local and on the same disk.

In other words I want to make dir2 a copy of dir1, with every file 
hard-linked to its counterpart in dir1.

Why not just use cp?  Because I want to be able to do it as a user who 
has sudo permission to run rsync but not cp.

cheers

Chris
-- 
Chris Dennis                                  cgdennis at btinternet.com
Fordingbridge, Hampshire, UK