I guess this one is for me to answer 
gary wrote:
I did a fresh install of grass623. However, I forgot r.cva is an add on.
I found the old threads when I did this install with Bejamin Ducke's
help (AKA leading me by the nose because I'm clueless):
http://lists.osgeo.org/pipermail/grass-dev/2006-June/024106.html
http://lists.osgeo.org/pipermail/grass-dev/2006-June/024108.html
http://lists.osgeo.org/pipermail/grass-dev/2006-June/024197.html
You should still be able to download both GEM and a working version of
the extension containing r.cva from here:
http://www.uni-kiel.de/ufg/ufg_BerDucke.htm
(scroll down to bottom of page)
Before I hack on this, is the present source code for r.cva suitable for
grass623.
Good question. I have not been maintaining the code for a while. If
there are any problems with 6.2, they should be easy to fix.
Any particular reason why you don't want to use GRASS 6.3RC6?
Benjamin
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