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- #ifndef SYSTEM_H
- #define SYSTEM_H
-
- #ifdef UNIX
- #if !defined(HAVE_UNISTD_H) && !defined(MACH) && !defined(_BSD)
- #define HAVE_UNISTD_H
- #endif
-
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #else
- #include <stdio.h>
- #include <sys/types.h>
- #endif
-
- int getch();
- int kbhit();
-
- /* replacement function for obsolete clock(), just provides random data */
- long Clock();
-
- #endif /* UNIX */
-
- #if defined(UNIX) || defined(AMIGA) || defined(VMS)
- #define NEEDBREAK
- void ttycbreak();
- void ttynorm();
- #endif
-
- #if !defined(MSDOS) && !defined(ATARI)
- char *strlwr(char *);
- #endif
-
- #endif /* SYSTEM_H */
-