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#endif /* NeXT */

#if !defined(BSD4_4) && !defined(__linux__) && !defined(__hpux) && \
    !defined(sgi) && !defined(_AIX) && !defined(__CYGWIN__)
#ifndef NEEDgethostname
extern int gethostname __P((char *, int));
#endif /* NEEDgethostname */
#endif /* !BDS4_4 && !__linux__ && !__hpux && !sgi */

#if !defined(POSIX) || defined(SUNOS4) || defined(UTekV) || defined(sysV88)
extern time_t time();
extern char *getenv();
extern int atoi();
# ifndef __EMX__
extern char *ttyname();
# endif /* __EMX__ */

# if defined(SUNOS4)
#  ifndef toupper
extern int toupper __P((int));
#  endif /* toupper */
#  ifndef tolower
extern int tolower __P((int));
#  endif /* tolower */
extern caddr_t sbrk __P((int));
#  if SYSVREL == 0 && !defined(__lucid)
extern int qsort();
#  endif /* SYSVREL == 0 && !__lucid */
# else /* !SUNOS4 */
#  ifndef WINNT_NATIVE
#   ifndef hpux
#    if __GNUC__ != 2
extern int abort();
#    endif /* __GNUC__ != 2 */
#    ifndef fps500
extern int qsort();
#    endif /* !fps500 */
#   else /* !hpux */
extern void abort();
extern void qsort();
#   endif /* hpux */
#  endif /* !WINNT_NATIVE */
# endif	/* SUNOS4 */
#ifndef _CX_UX
extern void perror();
#endif

# ifdef BSDSIGS
#  if defined(_AIX370) || defined(MACH) || defined(NeXT) || defined(_AIXPS2) || defined(ardent) || defined(SUNOS4) || defined(HPBSD) || defined(__MACHTEN__)
extern int sigvec();
extern int sigpause();
#  else	/* !(_AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD) */
#   if (!defined(apollo) || !defined(__STDC__)) && !defined(__DGUX__) && !defined(fps500)
extern sigret_t sigvec();
#ifndef _CX_UX
extern void sigpause();
#endif /* _CX_UX */
#   endif /* (!apollo || !__STDC__) && !__DGUX__ && !fps500 */
#  endif /* _AIX370 || MACH || NeXT || _AIXPS2 || ardent || SUNOS4 || HPBSD */
extern sigmask_t sigblock();
extern sigmask_t sigsetmask();
# endif	/* BSDSIGS */

# ifndef killpg
extern int killpg();
# endif	/* killpg */

# ifndef lstat
extern int lstat();
# endif	/* lstat */

# ifdef BSD
extern uid_t getuid(), geteuid();
extern gid_t getgid(), getegid();
# endif /* BSD */

# ifdef SYSMALLOC
extern memalign_t malloc();
extern memalign_t realloc();
extern memalign_t calloc();
extern void free();
# endif	/* SYSMALLOC */

# ifdef BSDTIMES
extern int getrlimit();
extern int setrlimit();
extern int getrusage();
extern int gettimeofday();
# endif	/* BSDTIMES */

# if defined(NLS) && !defined(NOSTRCOLL) && !defined(NeXT)
extern int strcoll();
# endif /* NLS && !NOSTRCOLL && !NeXT */

# ifdef BSDJOBS
#  ifdef BSDTIMES
#   ifdef __MACHTEN__
extern pid_t wait3();
#   else
#   ifndef HPBSD
extern int wait3();
#   endif /* HPBSD */
#   endif /* __MACHTEN__ */
#  else	/* !BSDTIMES */
#   if !defined(POSIXJOBS) && !defined(_SEQUENT_)
extern int wait3();
#   else /* POSIXJOBS || _SEQUENT_ */
extern int waitpid();
#   endif /* POSIXJOBS || _SEQUENT_ */
#  endif /* BSDTIMES */
# else /* !BSDJOBS */
#  if SYSVREL < 3
extern int ourwait();
#  else	/* SYSVREL >= 3 */
extern int wait();
#  endif /* SYSVREL < 3 */
# endif	/* BSDJOBS */

# ifdef BSDNICE
extern int setpriority();
# else /* !BSDNICE */