update headers for GRASS virtual raster

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@72761 15284696-431f-4ddb-bdfa-cd5b030d7da7

include/defs/raster.h

@@ -570,6 +570,11 @@ void Rast_unset_window(void);
 void Rast_set_output_window(struct Cell_head *);
 void Rast_set_input_window(struct Cell_head *);
 
+/* vrt.c */
+struct R_vrt *Rast_get_vrt(const char *, const char *);
+void Rast_close_vrt(struct R_vrt *);
+int Rast_get_vrt_row(int, void *, int, RASTER_MAP_TYPE);
+
 /* window.c */
 void Rast_get_window(struct Cell_head *);
 void Rast_get_input_window(struct Cell_head *);

include/raster.h

@@ -249,6 +249,7 @@ struct FP_stats {
 };
 
 struct GDAL_link;
+struct R_vrt;
 
 /*** prototypes ***/
 #include <grass/defs/raster.h>