#include "wincontrol.h"
#include <errno.h> /* global errno */
#include <dirent.h> /* DIR, struct dirent, opendir(), closedir(), readdir() */
+#include <stddef.h> /* NULL */
#include <stdint.h> /* uint8_t, uint16_t, uint32_t */
#include <stdio.h> /* FILE */
#include <stdlib.h> /* free(), atoi() */