How to install Sawfish in /usr/local?

["Andrea Vettorello" <andrea vettorello gmail com>]

I want to install a second Sawfish instance in /usr/local to modify
and break freely, but even if i specifically declare at configuration
time the   --prefix and  --exec-prefix variables with my path, there's
always an error when it tries to overwrite the client.so lib under
/usr/lib/rep/i486-pc-linux-gnu/sawfish/ (and not installing in
/usr/local).

As i don't know autotools, am i missing something trivial? Is this the
expected behaviour or are autoconf scripts broken?
Should i install librep from source too (in /usr/local) and pass this
one at config time?


-- 
Andrea