[GRASS5] [bug #4368] (grass) r.blend: overwrites the output instead of 'Error: map exists.'

[Glynn Clements]

Hamish wrote:

> > Also, r.blend GUI misses the neat green progress bar.
> 
> This is because the module that creates the 100% is r.mapcalc which is
> called by the script, not the GUI. The GUI parses G_percent(), not output
> to stderr. No obvious solution.

Huh? It shouldn't make any difference whether r.mapcalc is called
directly or via a script.

-- 
Glynn Clements <glynn at gclements.plus.com>