[GRASS5] Re: [bug #2996] (grass) red (X) in GUI on fatal error doesn't appear on --o

[Radim Blazek]

On 8/31/05, Markus Neteler via RT <grass-bugs at intevation.de> wrote:
> > When a Tcl/Tk GUI run module exits with an error becasue the output file
> 
> > already exists (need to use --o), it doesn't have a red (X) icon before the
> 
> > error message. Why not?
>
> Ciao Radim,
> 
> could you fix that? Not sure what's missing...
> 
> Thanks
> 
>  Markus

The problem is that G_fatal_error()  must be used to get an error message 
formated for GUI. Unfortunately G_fatal_error() calls exit() and G_parser() 
must not exit. G_set_error_routine() does not help because in that case 
G_fatal_error() prints nothing.

Radim