#include <stddef.h>
#include <sys/types.h>
+#include <stdio.h>
#ifdef __MINGW32__
#define ENOTSUP 100
#define DEBUGPC(x, args ...) fprintf(stderr, x, ## args)
#endif /* LIBRFID_FIRMWARE */
+#include <stdio.h>
+
#else /* DEBUG */
extern const char *rfid_hexdump(const void *data, unsigned int len);