[GRASS5] d.legend with vector file support

[Glynn Clements]

Jachym Cepicky wrote:

> After moving the code to separate file, I get warnings:
> 
>     ...
>     vector.c:213: warning: passing arg 1 of `R_RGB_color' with different width due to prototype
>     ...
> 
> and I don't know what to do with this

The red/green/blue fields of struct Vcat_clrs are of type int, but the
arguments to R_RGB_color() are of type unsigned char.

Either change the struct Vcat_clrs fields to unsigned char, or
explicitly cast the arguments to R_RGB_color(), e.g.:

	R_RGB_color(
		(unsigned char) vcat_clrs[i].red,
		(unsigned char) vcat_clrs[i].green,
		(unsigned char) vcat_clrs[i].blue);

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