Fix a compiler warning

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@6609 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: g_j_m

src/plugins/grid_maker/dbfopen.c

@@ -631,7 +631,7 @@ static void *DBFReadAttribute(DBFHandle psDBF, int hEntity, int iField,
 /* -------------------------------------------------------------------- */
 /*	Extract the requested field.					*/
 /* -------------------------------------------------------------------- */
-    strncpy( pszStringField, pabyRec+psDBF->panFieldOffset[iField],
+    strncpy( pszStringField, (char*)(pabyRec+psDBF->panFieldOffset[iField]),
 	     psDBF->panFieldSize[iField] );
     pszStringField[psDBF->panFieldSize[iField]] = '\0';