unistd_h.m4 7.58 KB
Newer Older
Paul Eggert's avatar
Paul Eggert committed
1
# unistd_h.m4 serial 53
Paul Eggert's avatar
Paul Eggert committed
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl Written by Simon Josefsson, Bruno Haible.

AC_DEFUN([gl_UNISTD_H],
[
  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  dnl once only, before all statements that occur in other macros.
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  AC_REQUIRE([AC_C_INLINE])

  gl_CHECK_NEXT_HEADERS([unistd.h])
  if test $ac_cv_header_unistd_h = yes; then
    HAVE_UNISTD_H=1
  else
    HAVE_UNISTD_H=0
  fi
  AC_SUBST([HAVE_UNISTD_H])

  dnl Check for declarations of anything we want to poison if the
  dnl corresponding gnulib module is not in use.
  gl_WARN_ON_USE_PREPARE([[#include <unistd.h>
/* Some systems declare various items in the wrong headers.  */
#if !(defined __GLIBC__ && !defined __UCLIBC__)
# include <fcntl.h>
# include <stdio.h>
# include <stdlib.h>
# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
#  include <io.h>
# endif
#endif
    ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
    fsync ftruncate getcwd getdomainname getdtablesize getgroups
    gethostname getlogin getlogin_r getpagesize getusershell setusershell
    endusershell lchown link linkat lseek pipe pipe2 pread pwrite readlink
    readlinkat rmdir sleep symlink symlinkat ttyname_r unlink unlinkat
    usleep])
])

AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
[
  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  dnl Define it also as a C macro, for the benefit of the unit tests.
  gl_MODULE_INDICATOR_FOR_TESTS([$1])
])

AC_DEFUN([gl_UNISTD_H_DEFAULTS],
[
  GNULIB_CHOWN=0;            AC_SUBST([GNULIB_CHOWN])
  GNULIB_CLOSE=0;            AC_SUBST([GNULIB_CLOSE])
  GNULIB_DUP2=0;             AC_SUBST([GNULIB_DUP2])
  GNULIB_DUP3=0;             AC_SUBST([GNULIB_DUP3])
  GNULIB_ENVIRON=0;          AC_SUBST([GNULIB_ENVIRON])
  GNULIB_EUIDACCESS=0;       AC_SUBST([GNULIB_EUIDACCESS])
  GNULIB_FACCESSAT=0;        AC_SUBST([GNULIB_FACCESSAT])
  GNULIB_FCHDIR=0;           AC_SUBST([GNULIB_FCHDIR])
  GNULIB_FCHOWNAT=0;         AC_SUBST([GNULIB_FCHOWNAT])
  GNULIB_FSYNC=0;            AC_SUBST([GNULIB_FSYNC])
  GNULIB_FTRUNCATE=0;        AC_SUBST([GNULIB_FTRUNCATE])
  GNULIB_GETCWD=0;           AC_SUBST([GNULIB_GETCWD])
  GNULIB_GETDOMAINNAME=0;    AC_SUBST([GNULIB_GETDOMAINNAME])
  GNULIB_GETDTABLESIZE=0;    AC_SUBST([GNULIB_GETDTABLESIZE])
  GNULIB_GETGROUPS=0;        AC_SUBST([GNULIB_GETGROUPS])
  GNULIB_GETHOSTNAME=0;      AC_SUBST([GNULIB_GETHOSTNAME])
  GNULIB_GETLOGIN=0;         AC_SUBST([GNULIB_GETLOGIN])
  GNULIB_GETLOGIN_R=0;       AC_SUBST([GNULIB_GETLOGIN_R])
  GNULIB_GETPAGESIZE=0;      AC_SUBST([GNULIB_GETPAGESIZE])
  GNULIB_GETUSERSHELL=0;     AC_SUBST([GNULIB_GETUSERSHELL])
  GNULIB_LCHOWN=0;           AC_SUBST([GNULIB_LCHOWN])
  GNULIB_LINK=0;             AC_SUBST([GNULIB_LINK])
  GNULIB_LINKAT=0;           AC_SUBST([GNULIB_LINKAT])
  GNULIB_LSEEK=0;            AC_SUBST([GNULIB_LSEEK])
  GNULIB_PIPE=0;             AC_SUBST([GNULIB_PIPE])
  GNULIB_PIPE2=0;            AC_SUBST([GNULIB_PIPE2])
  GNULIB_PREAD=0;            AC_SUBST([GNULIB_PREAD])
  GNULIB_PWRITE=0;           AC_SUBST([GNULIB_PWRITE])
  GNULIB_READLINK=0;         AC_SUBST([GNULIB_READLINK])
  GNULIB_READLINKAT=0;       AC_SUBST([GNULIB_READLINKAT])
  GNULIB_RMDIR=0;            AC_SUBST([GNULIB_RMDIR])
  GNULIB_SLEEP=0;            AC_SUBST([GNULIB_SLEEP])
  GNULIB_SYMLINK=0;          AC_SUBST([GNULIB_SYMLINK])
  GNULIB_SYMLINKAT=0;        AC_SUBST([GNULIB_SYMLINKAT])
  GNULIB_TTYNAME_R=0;        AC_SUBST([GNULIB_TTYNAME_R])
  GNULIB_UNISTD_H_GETOPT=0;  AC_SUBST([GNULIB_UNISTD_H_GETOPT])
  GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
  GNULIB_UNLINK=0;           AC_SUBST([GNULIB_UNLINK])
  GNULIB_UNLINKAT=0;         AC_SUBST([GNULIB_UNLINKAT])
  GNULIB_USLEEP=0;           AC_SUBST([GNULIB_USLEEP])
  GNULIB_WRITE=0;            AC_SUBST([GNULIB_WRITE])
  dnl Assume proper GNU behavior unless another module says otherwise.
  HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
  HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
  HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
  HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
  HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
  HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
  HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
  HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
  HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
  HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
  HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
  HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
  HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
  HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
  HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
  HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
  HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
  HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
  HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
  HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
  HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
  HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
  HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
  HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
  HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
  HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
  HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
  HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
  HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
  HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
  HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
  HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
  HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
  HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
  HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
  HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
  HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
  REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
  REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
  REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
  REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
  REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
  REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
  REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
  REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
  REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
  REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
  REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
  REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
  REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
  REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
  REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
  REPLACE_PWRITE=0;       AC_SUBST([REPLACE_PWRITE])
  REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
  REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
  REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
  REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
  REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
  REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
  REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
  REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
  REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
  UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
  UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
                           AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
])