[GRASS-dev] iconv a required dependency for using Freetype?

[Hamish]

Paul: 
> > * Fix gis.m to discard stderr from d.font as using R_font() seems to
> > cause it to print some PNG driver messages to stderr

that will also mask any real warning and error messages, which isn't so
nice. Makes debugging + support much harder.

Glynn:
> d.font has to call R_open_driver() before it can call R_font(); with
> direct rendering, R_open_driver() will run the driver's Graph_set()
> function, which normally generates some stderr output.

G_message() or G_warning()?


if just G_message(), d.font could run  G_putenv("GRASS_VERBOSE","0"); to
disable all uninteresting messages and % done but still keep G_warning()
and G_fatal_error()s.

I think
  G_putenv("GRASS_VERBOSE","0");
will do the same as 
  G_set_verbose( G_verbose_min() );

? So better to use the latter ? Will level set with G_set_verbose()
reset when the module exits, or will it be persistent within libgis?
In that case, the former is preferred and the latter should be avoided
for general use by modules.


Hamish