include string.h for memcpy()

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@40853 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/raster/raster.c

@@ -12,6 +12,7 @@
  */
 
 #include <stdlib.h>
+#include <string.h>
 #include <grass/gis.h>
 #include <grass/raster.h>