m4/unistd_h.m4

   1 # unistd_h.m4 serial 65
   2 dnl Copyright (C) 2006-2012 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 dnl Written by Simon Josefsson, Bruno Haible.
   8
   9 AC_DEFUN([gl_UNISTD_H],
  10 [
  11   dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  12   dnl once only, before all statements that occur in other macros.
  13   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  14   AC_REQUIRE([AC_C_INLINE])
  15
  16   gl_CHECK_NEXT_HEADERS([unistd.h])
  17   if test $ac_cv_header_unistd_h = yes; then
  18     HAVE_UNISTD_H=1
  19   else
  20     HAVE_UNISTD_H=0
  21   fi
  22   AC_SUBST([HAVE_UNISTD_H])
  23
  24   dnl Ensure the type pid_t gets defined.
  25   AC_REQUIRE([AC_TYPE_PID_T])
  26
  27   dnl Determine WINDOWS_64_BIT_OFF_T.
  28   AC_REQUIRE([gl_TYPE_OFF_T])
  29
  30   dnl Check for declarations of anything we want to poison if the
  31   dnl corresponding gnulib module is not in use.
  32   gl_WARN_ON_USE_PREPARE([[
  33 #if HAVE_UNISTD_H
  34 # include <unistd.h>
  35 #endif
  36 /* Some systems declare various items in the wrong headers.  */
  37 #if !(defined __GLIBC__ && !defined __UCLIBC__)
  38 # include <fcntl.h>
  39 # include <stdio.h>
  40 # include <stdlib.h>
  41 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  42 #  include <io.h>
  43 # endif
  44 #endif
  45     ]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat
  46     fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
  47     gethostname getlogin getlogin_r getpagesize
  48     getusershell setusershell endusershell
  49     group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
  50     readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r
  51     unlink unlinkat usleep])
  52 ])
  53
  54 AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
  55 [
  56   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  57   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  58   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  59   dnl Define it also as a C macro, for the benefit of the unit tests.
  60   gl_MODULE_INDICATOR_FOR_TESTS([$1])
  61 ])
  62
  63 AC_DEFUN([gl_UNISTD_H_DEFAULTS],
  64 [
  65   GNULIB_CHDIR=0;                AC_SUBST([GNULIB_CHDIR])
  66   GNULIB_CHOWN=0;                AC_SUBST([GNULIB_CHOWN])
  67   GNULIB_CLOSE=0;                AC_SUBST([GNULIB_CLOSE])
  68   GNULIB_DUP=0;                  AC_SUBST([GNULIB_DUP])
  69   GNULIB_DUP2=0;                 AC_SUBST([GNULIB_DUP2])
  70   GNULIB_DUP3=0;                 AC_SUBST([GNULIB_DUP3])
  71   GNULIB_ENVIRON=0;              AC_SUBST([GNULIB_ENVIRON])
  72   GNULIB_EUIDACCESS=0;           AC_SUBST([GNULIB_EUIDACCESS])
  73   GNULIB_FACCESSAT=0;            AC_SUBST([GNULIB_FACCESSAT])
  74   GNULIB_FCHDIR=0;               AC_SUBST([GNULIB_FCHDIR])
  75   GNULIB_FCHOWNAT=0;             AC_SUBST([GNULIB_FCHOWNAT])
  76   GNULIB_FDATASYNC=0;            AC_SUBST([GNULIB_FDATASYNC])
  77   GNULIB_FSYNC=0;                AC_SUBST([GNULIB_FSYNC])
  78   GNULIB_FTRUNCATE=0;            AC_SUBST([GNULIB_FTRUNCATE])
  79   GNULIB_GETCWD=0;               AC_SUBST([GNULIB_GETCWD])
  80   GNULIB_GETDOMAINNAME=0;        AC_SUBST([GNULIB_GETDOMAINNAME])
  81   GNULIB_GETDTABLESIZE=0;        AC_SUBST([GNULIB_GETDTABLESIZE])
  82   GNULIB_GETGROUPS=0;            AC_SUBST([GNULIB_GETGROUPS])
  83   GNULIB_GETHOSTNAME=0;          AC_SUBST([GNULIB_GETHOSTNAME])
  84   GNULIB_GETLOGIN=0;             AC_SUBST([GNULIB_GETLOGIN])
  85   GNULIB_GETLOGIN_R=0;           AC_SUBST([GNULIB_GETLOGIN_R])
  86   GNULIB_GETPAGESIZE=0;          AC_SUBST([GNULIB_GETPAGESIZE])
  87   GNULIB_GETUSERSHELL=0;         AC_SUBST([GNULIB_GETUSERSHELL])
  88   GNULIB_GROUP_MEMBER=0;         AC_SUBST([GNULIB_GROUP_MEMBER])
  89   GNULIB_ISATTY=0;               AC_SUBST([GNULIB_ISATTY])
  90   GNULIB_LCHOWN=0;               AC_SUBST([GNULIB_LCHOWN])
  91   GNULIB_LINK=0;                 AC_SUBST([GNULIB_LINK])
  92   GNULIB_LINKAT=0;               AC_SUBST([GNULIB_LINKAT])
  93   GNULIB_LSEEK=0;                AC_SUBST([GNULIB_LSEEK])
  94   GNULIB_PIPE=0;                 AC_SUBST([GNULIB_PIPE])
  95   GNULIB_PIPE2=0;                AC_SUBST([GNULIB_PIPE2])
  96   GNULIB_PREAD=0;                AC_SUBST([GNULIB_PREAD])
  97   GNULIB_PWRITE=0;               AC_SUBST([GNULIB_PWRITE])
  98   GNULIB_READ=0;                 AC_SUBST([GNULIB_READ])
  99   GNULIB_READLINK=0;             AC_SUBST([GNULIB_READLINK])
 100   GNULIB_READLINKAT=0;           AC_SUBST([GNULIB_READLINKAT])
 101   GNULIB_RMDIR=0;                AC_SUBST([GNULIB_RMDIR])
 102   GNULIB_SETHOSTNAME=0;          AC_SUBST([GNULIB_SETHOSTNAME])
 103   GNULIB_SLEEP=0;                AC_SUBST([GNULIB_SLEEP])
 104   GNULIB_SYMLINK=0;              AC_SUBST([GNULIB_SYMLINK])
 105   GNULIB_SYMLINKAT=0;            AC_SUBST([GNULIB_SYMLINKAT])
 106   GNULIB_TTYNAME_R=0;            AC_SUBST([GNULIB_TTYNAME_R])
 107   GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
 108   GNULIB_UNISTD_H_SIGPIPE=0;     AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
 109   GNULIB_UNLINK=0;               AC_SUBST([GNULIB_UNLINK])
 110   GNULIB_UNLINKAT=0;             AC_SUBST([GNULIB_UNLINKAT])
 111   GNULIB_USLEEP=0;               AC_SUBST([GNULIB_USLEEP])
 112   GNULIB_WRITE=0;                AC_SUBST([GNULIB_WRITE])
 113   dnl Assume proper GNU behavior unless another module says otherwise.
 114   HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
 115   HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
 116   HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
 117   HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
 118   HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
 119   HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
 120   HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
 121   HAVE_FDATASYNC=1;       AC_SUBST([HAVE_FDATASYNC])
 122   HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
 123   HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
 124   HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
 125   HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
 126   HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
 127   HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
 128   HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
 129   HAVE_GROUP_MEMBER=1;    AC_SUBST([HAVE_GROUP_MEMBER])
 130   HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
 131   HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
 132   HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
 133   HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
 134   HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
 135   HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
 136   HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
 137   HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
 138   HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
 139   HAVE_SETHOSTNAME=1;     AC_SUBST([HAVE_SETHOSTNAME])
 140   HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
 141   HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
 142   HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
 143   HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
 144   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
 145   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
 146   HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
 147   HAVE_DECL_FDATASYNC=1;  AC_SUBST([HAVE_DECL_FDATASYNC])
 148   HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
 149   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
 150   HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
 151   HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
 152   HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME])
 153   HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
 154   HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
 155   HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
 156   REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
 157   REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
 158   REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
 159   REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
 160   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
 161   REPLACE_FTRUNCATE=0;    AC_SUBST([REPLACE_FTRUNCATE])
 162   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
 163   REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
 164   REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
 165   REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
 166   REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
 167   REPLACE_ISATTY=0;       AC_SUBST([REPLACE_ISATTY])
 168   REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
 169   REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
 170   REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
 171   REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
 172   REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
 173   REPLACE_PWRITE=0;       AC_SUBST([REPLACE_PWRITE])
 174   REPLACE_READ=0;         AC_SUBST([REPLACE_READ])
 175   REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
 176   REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
 177   REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
 178   REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
 179   REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
 180   REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
 181   REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
 182   REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
 183   REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
 184   UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
 185   UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
 186                            AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
 187 ])