#ifndef __P
# ifdef __STDC__
# define __P(x) x
# else
# define __P(x) ()
# define const
# endif
#endif
#if defined(UNIXPC) || defined(unixpc)
# define UNIXPC 1
# define ATT 1
#endif
#if defined(hpux) || defined(_hpux) || defined(__hpux)
# define HPUX 1
# define seteuid(e) setresuid(-1,e,-1)
# define setreuid(r,e) setresuid(r,e,-1)
#endif
#if defined(_IBMR2)
# define AIX 1
#endif
#if defined(__convex__)
# define CONVEX 1
#endif
#if defined(sgi) || defined(_sgi) || defined(__sgi)
# define IRIX 1
# define const
#endif
#if defined(_UNICOS)
# define UNICOS 1
#endif
#ifndef POSIX
# if (BSD >= 199103) || defined(__linux) || defined(ultrix) || defined(AIX) ||\
defined(HPUX) || defined(CONVEX) || defined(IRIX)
# define POSIX
# endif
#endif
#ifndef BSD
# if defined(ultrix)
# define BSD 198902
# endif
#endif
#if !defined(BSD) && !defined(HPUX) && !defined(CONVEX) && !defined(__linux)
# define NEED_VFORK
#endif
#if (!defined(BSD) || (BSD < 198902)) && !defined(__linux) && \
!defined(IRIX) && !defined(NeXT) && !defined(HPUX)
# define NEED_STRCASECMP
#endif
#if (!defined(BSD) || (BSD < 198911)) && !defined(__linux) &&\
!defined(IRIX) && !defined(UNICOS) && !defined(HPUX)
# define NEED_STRDUP
#endif
#if (!defined(BSD) || (BSD < 198911)) && !defined(POSIX) && !defined(NeXT)
# define NEED_STRERROR
#endif
#if defined(HPUX) || defined(AIX) || defined(UNIXPC)
# define NEED_FLOCK
#endif
#ifndef POSIX
# define NEED_SETSID
#endif
#if (defined(POSIX) && !defined(BSD)) && !defined(__linux)
# define NEED_GETDTABLESIZE
#endif
#ifdef POSIX
#include <unistd.h>
#ifdef _POSIX_SAVED_IDS
# define HAVE_SAVED_UIDS
#endif
#endif
#if !defined(ATT) && !defined(__linux) && !defined(IRIX) && !defined(UNICOS)
# define USE_SIGCHLD
#endif
#if !defined(AIX) && !defined(UNICOS)
# define SYS_TIME_H 1
#else
# define SYS_TIME_H 0
#endif
#if defined(BSD) && !defined(POSIX)
# define USE_UTIMES
#endif
#if defined(AIX) || defined(HPUX) || defined(IRIX)
# define NEED_SETENV
#endif
#if !defined(UNICOS) && !defined(UNIXPC)
# define HAS_FCHOWN
#endif
#if !defined(UNICOS) && !defined(UNIXPC)
# define HAS_FCHMOD
#endif