r.water.outlet

I am looking at the GRASS4.1 Users Reference Manual and on page 413 is the
documentation for the command "r.water.outlet". The documentation claims that
this is a "main" program. This command is not in the executable directory
and I have looked in the main, alpha, contrib, and related source code
directories and have not been able to find the source code either. Does anyone
know where I can find the source for this command so that I can compile it?

Also, the "r.water.outlet" gives reference to other commands such as
r.water.aspect, r.water.accum, r.water.swale, and r.water.basin. Does anyone
know where the source for these are?

Leslie Frankosk
CADSWES
University of Colorado at Boulder
frankosk@cadswes.colorado.edu