+/* Simple program to load paper tape over serial port. Does that twice and compares. */
+
#include <stdio.h>
#include <termios.h>
#include <sys/types.h>
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
+#include <unistd.h>
struct termios orgstate;
struct termios workstate;