Documentation for Grass 6.0 r.terraflow does not say anything about
requirement to compile Grass with cxx support to enable terraflow.
There should be a note about this. Currently note is only in
requirements list, but link (Installation requirements (needed
libraries)) in download page (http://grass.itc.it/download/index.php)
still points to 5.4 versions requirements list and there is no info
about C++.
Link updated to 6.0 version in CVS.
How often users have C compiler and no C++ compiler? Most Linux
distros ship with both compilers (gcc and g++) or no compiler at all.
Debian doesn't include g++ unless you ask for it by name, for one.
Hamish