I'd be very grateful if someone could help with some suggestions with the
following.
After upgrading to 6.4.3RC3 I noticed that I'm getting the following error
on running the r.fuzzy.system. It was previously okay with 6.4.2 - haven't
tested by reverting to the former version yet.
Another possibility is that a subsequent installation of GRASS7 into the
home directory is responsible - but I doubt this.
*Unable to fetch interface description for command 'r.fuzzy.system'.
Details: r.fuzzy.system: error while loading shared libraries:
libgrass_gis.6.4.3.so: cannot open shared object file: No such file or
directory*
Resolved by completely uninstalling and reinstalling (via Synaptic
Package manager) and then re-installing the addon.
It is expected that when you install a new version of GRASS you'll
have to rebuild any self-compiled addons modules written in C or C++.
Bash and Python scripts should be ok, it's only the internal API/ABI
which is not guaranteed. (change frequency seems to be once per 6
months or year in the stable branch; currently it's stable since Feb 2012)
You'll find a g.extension.rebuild.all.py menu item if you are using
the wxGUI extension manager. If running from the command line I think
just rerunning g.extension to remove then reinstall the module is enough.