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- /*
- *
- * Conditional compilation definitions needed in ifdef.c and postio.c.
- *
- */
- #ifdef SYSV
- #include <termio.h>
- #ifdef DKSTREAMS
- #include <sys/stream.h>
- #include <sys/stropts.h>
- #endif
- #endif
- #ifdef V9
- #include <sys/filio.h>
- #include <sys/ttyio.h>
- extern int tty_ld;
- #endif
- #ifdef BSD4_2
- #include <sgtty.h>
- #include <sys/time.h>
- #include <errno.h>
- #define FD_ZERO(s) (s) = 0
- #define FD_SET(n,s) (s) |= 1 << (n)
- extern int errno;
- #endif
- #ifdef DKHOST
- #include <dk.h>
- #include <sysexits.h>
- extern char *dtnamer();
- extern int dkminor();
- #endif
- /*
- *
- * External variable declarations - most (if not all) are defined in postio.c and
- * needed by the routines in ifdef.c.
- *
- */
- extern char *line; /* printer is on this line */
- extern int ttyi; /* input */
- extern int ttyo; /* and output file descriptors */
- extern FILE *fp_log; /* just for DKHOST stuff */
- extern char mesg[]; /* exactly what came back on ttyi */
- extern char *endmesg; /* one in front of last free slot in mesg */
- extern int next; /* next character goes in mesg[next] */
- extern short baudrate; /* printer is running at this speed */
- extern int stopbits; /* and expects this many stop bits */
- extern int interactive; /* TRUE for interactive mode */
- extern int whatami; /* a READ or WRITE process - or both */
- extern int canread; /* allows reads */
- extern int canwrite; /* and writes if TRUE */
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