Blame m4/unistd_h.m4

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# unistd_h.m4 serial 70
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dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Written by Simon Josefsson, Bruno Haible.
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AC_DEFUN([gl_UNISTD_H],
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[
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  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
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  dnl once only, before all statements that occur in other macros.
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  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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  gl_CHECK_NEXT_HEADERS([unistd.h])
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  if test $ac_cv_header_unistd_h = yes; then
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    HAVE_UNISTD_H=1
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  else
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    HAVE_UNISTD_H=0
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  fi
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  AC_SUBST([HAVE_UNISTD_H])
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  dnl Ensure the type pid_t gets defined.
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  AC_REQUIRE([AC_TYPE_PID_T])
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  dnl Determine WINDOWS_64_BIT_OFF_T.
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  AC_REQUIRE([gl_TYPE_OFF_T])
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  dnl Check for declarations of anything we want to poison if the
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  dnl corresponding gnulib module is not in use.
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  gl_WARN_ON_USE_PREPARE([[
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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/* Some systems declare various items in the wrong headers.  */
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#if !(defined __GLIBC__ && !defined __UCLIBC__)
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# include <fcntl.h>
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# include <stdio.h>
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# include <stdlib.h>
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# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
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#  include <io.h>
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# endif
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#endif
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    ]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat
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    fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
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    gethostname getlogin getlogin_r getpagesize
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    getusershell setusershell endusershell
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    group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
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    readlink readlinkat rmdir sethostname sleep symlink symlinkat
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    truncate ttyname_r unlink unlinkat usleep])
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])
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AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
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[
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  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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  dnl Define it also as a C macro, for the benefit of the unit tests.
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  gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_UNISTD_H_DEFAULTS],
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[
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  GNULIB_CHDIR=0;                AC_SUBST([GNULIB_CHDIR])
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  GNULIB_CHOWN=0;                AC_SUBST([GNULIB_CHOWN])
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  GNULIB_CLOSE=0;                AC_SUBST([GNULIB_CLOSE])
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  GNULIB_DUP=0;                  AC_SUBST([GNULIB_DUP])
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  GNULIB_DUP2=0;                 AC_SUBST([GNULIB_DUP2])
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  GNULIB_DUP3=0;                 AC_SUBST([GNULIB_DUP3])
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  GNULIB_ENVIRON=0;              AC_SUBST([GNULIB_ENVIRON])
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  GNULIB_EUIDACCESS=0;           AC_SUBST([GNULIB_EUIDACCESS])
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  GNULIB_FACCESSAT=0;            AC_SUBST([GNULIB_FACCESSAT])
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  GNULIB_FCHDIR=0;               AC_SUBST([GNULIB_FCHDIR])
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  GNULIB_FCHOWNAT=0;             AC_SUBST([GNULIB_FCHOWNAT])
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  GNULIB_FDATASYNC=0;            AC_SUBST([GNULIB_FDATASYNC])
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  GNULIB_FSYNC=0;                AC_SUBST([GNULIB_FSYNC])
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  GNULIB_FTRUNCATE=0;            AC_SUBST([GNULIB_FTRUNCATE])
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  GNULIB_GETCWD=0;               AC_SUBST([GNULIB_GETCWD])
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  GNULIB_GETDOMAINNAME=0;        AC_SUBST([GNULIB_GETDOMAINNAME])
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  GNULIB_GETDTABLESIZE=0;        AC_SUBST([GNULIB_GETDTABLESIZE])
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  GNULIB_GETGROUPS=0;            AC_SUBST([GNULIB_GETGROUPS])
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  GNULIB_GETHOSTNAME=0;          AC_SUBST([GNULIB_GETHOSTNAME])
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  GNULIB_GETLOGIN=0;             AC_SUBST([GNULIB_GETLOGIN])
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  GNULIB_GETLOGIN_R=0;           AC_SUBST([GNULIB_GETLOGIN_R])
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  GNULIB_GETPAGESIZE=0;          AC_SUBST([GNULIB_GETPAGESIZE])
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  GNULIB_GETUSERSHELL=0;         AC_SUBST([GNULIB_GETUSERSHELL])
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  GNULIB_GROUP_MEMBER=0;         AC_SUBST([GNULIB_GROUP_MEMBER])
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  GNULIB_ISATTY=0;               AC_SUBST([GNULIB_ISATTY])
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  GNULIB_LCHOWN=0;               AC_SUBST([GNULIB_LCHOWN])
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  GNULIB_LINK=0;                 AC_SUBST([GNULIB_LINK])
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  GNULIB_LINKAT=0;               AC_SUBST([GNULIB_LINKAT])
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  GNULIB_LSEEK=0;                AC_SUBST([GNULIB_LSEEK])
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  GNULIB_PIPE=0;                 AC_SUBST([GNULIB_PIPE])
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  GNULIB_PIPE2=0;                AC_SUBST([GNULIB_PIPE2])
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  GNULIB_PREAD=0;                AC_SUBST([GNULIB_PREAD])
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  GNULIB_PWRITE=0;               AC_SUBST([GNULIB_PWRITE])
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  GNULIB_READ=0;                 AC_SUBST([GNULIB_READ])
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  GNULIB_READLINK=0;             AC_SUBST([GNULIB_READLINK])
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  GNULIB_READLINKAT=0;           AC_SUBST([GNULIB_READLINKAT])
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  GNULIB_RMDIR=0;                AC_SUBST([GNULIB_RMDIR])
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  GNULIB_SETHOSTNAME=0;          AC_SUBST([GNULIB_SETHOSTNAME])
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  GNULIB_SLEEP=0;                AC_SUBST([GNULIB_SLEEP])
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  GNULIB_SYMLINK=0;              AC_SUBST([GNULIB_SYMLINK])
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  GNULIB_SYMLINKAT=0;            AC_SUBST([GNULIB_SYMLINKAT])
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  GNULIB_TRUNCATE=0;             AC_SUBST([GNULIB_TRUNCATE])
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  GNULIB_TTYNAME_R=0;            AC_SUBST([GNULIB_TTYNAME_R])
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  GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
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  GNULIB_UNISTD_H_SIGPIPE=0;     AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
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  GNULIB_UNLINK=0;               AC_SUBST([GNULIB_UNLINK])
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  GNULIB_UNLINKAT=0;             AC_SUBST([GNULIB_UNLINKAT])
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  GNULIB_USLEEP=0;               AC_SUBST([GNULIB_USLEEP])
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  GNULIB_WRITE=0;                AC_SUBST([GNULIB_WRITE])
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  dnl Assume proper GNU behavior unless another module says otherwise.
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  HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
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  HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
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  HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
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  HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
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  HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
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  HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
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  HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
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  HAVE_FDATASYNC=1;       AC_SUBST([HAVE_FDATASYNC])
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  HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
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  HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
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  HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
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  HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
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  HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
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  HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
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  HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
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  HAVE_GROUP_MEMBER=1;    AC_SUBST([HAVE_GROUP_MEMBER])
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  HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
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  HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
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  HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
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  HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
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  HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
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  HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
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  HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
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  HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
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  HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
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  HAVE_SETHOSTNAME=1;     AC_SUBST([HAVE_SETHOSTNAME])
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  HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
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  HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
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  HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
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  HAVE_TRUNCATE=1;        AC_SUBST([HAVE_TRUNCATE])
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  HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
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  HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
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  HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
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  HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
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  HAVE_DECL_FDATASYNC=1;  AC_SUBST([HAVE_DECL_FDATASYNC])
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  HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
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  HAVE_DECL_GETLOGIN=1;   AC_SUBST([HAVE_DECL_GETLOGIN])
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  HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
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  HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
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  HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
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  HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME])
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  HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
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  HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
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  HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
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  REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
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  REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
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  REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
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  REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
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  REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
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  REPLACE_FTRUNCATE=0;    AC_SUBST([REPLACE_FTRUNCATE])
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  REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
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  REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
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  REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE])
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  REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
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  REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
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  REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
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  REPLACE_ISATTY=0;       AC_SUBST([REPLACE_ISATTY])
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  REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
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  REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
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  REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
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  REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
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  REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
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  REPLACE_PWRITE=0;       AC_SUBST([REPLACE_PWRITE])
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  REPLACE_READ=0;         AC_SUBST([REPLACE_READ])
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  REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
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  REPLACE_READLINKAT=0;   AC_SUBST([REPLACE_READLINKAT])
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  REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
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  REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
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  REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
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  REPLACE_SYMLINKAT=0;    AC_SUBST([REPLACE_SYMLINKAT])
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  REPLACE_TRUNCATE=0;     AC_SUBST([REPLACE_TRUNCATE])
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  REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
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  REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
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  REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
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  REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
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  REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
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  UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
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  UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
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                           AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
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])