[GRASS5] #include _GRASS_GIS_LIB_

[Hamish]

Hi,


in include/display.h we have:

#ifndef _GRASS_GIS_LIB_
#include <grass/gis.h>
#endif
#ifndef _GRASS_DISPLAY_LIB_
#define _GRASS_DISPLAY_LIB_


in include/segment.h we have:

#ifndef _GRASS_GIS_LIB
#include <grass/gis.h>
#endif

(note no trailing "_" in _GRASS_GIS_LIB)


are any of these even used?

should 
#include <grass/gis.h>

just be included without a test?

?
Hamish