m4/unistd_h.m4

   1 # unistd_h.m4 serial 53
   2 dnl Copyright (C) 2006-2011 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 Check for declarations of anything we want to poison if the
  25   dnl corresponding gnulib module is not in use.
  26   gl_WARN_ON_USE_PREPARE([[#include <unistd.h>
  27 /* Some systems declare various items in the wrong headers.  */
  28 #if !(defined __GLIBC__ && !defined __UCLIBC__)
  29 # include <fcntl.h>
  30 # include <stdio.h>
  31 # include <stdlib.h>
  32 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  33 #  include <io.h>
  34 # endif
  35 #endif
  36     ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
  37     fsync ftruncate getcwd getdomainname getdtablesize getgroups
  38     gethostname getlogin getlogin_r getpagesize getusershell setusershell
  39     endusershell lchown link linkat lseek pipe pipe2 pread pwrite readlink
  40     readlinkat rmdir sleep symlink symlinkat ttyname_r unlink unlinkat
  41     usleep])
  42 ])
  43
  44 AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
  45 [
  46   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  47   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  48   gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  49   dnl Define it also as a C macro, for the benefit of the unit tests.
  50   gl_MODULE_INDICATOR_FOR_TESTS([$1])
  51 ])
  52
  53 AC_DEFUN([gl_UNISTD_H_DEFAULTS],
  54 [
  55   GNULIB_CHOWN=0;            AC_SUBST([GNULIB_CHOWN])
  56   GNULIB_CLOSE=0;            AC_SUBST([GNULIB_CLOSE])
  57   GNULIB_DUP2=0;             AC_SUBST([GNULIB_DUP2])
  58   GNULIB_DUP3=0;             AC_SUBST([GNULIB_DUP3])
  59   GNULIB_ENVIRON=0;          AC_SUBST([GNULIB_ENVIRON])
  60   GNULIB_EUIDACCESS=0;       AC_SUBST([GNULIB_EUIDACCESS])
  61   GNULIB_FACCESSAT=0;        AC_SUBST([GNULIB_FACCESSAT])
  62   GNULIB_FCHDIR=0;           AC_SUBST([GNULIB_FCHDIR])
  63   GNULIB_FCHOWNAT=0;         AC_SUBST([GNULIB_FCHOWNAT])
  64   GNULIB_FSYNC=0;            AC_SUBST([GNULIB_FSYNC])
  65   GNULIB_FTRUNCATE=0;        AC_SUBST([GNULIB_FTRUNCATE])
  66   GNULIB_GETCWD=0;           AC_SUBST([GNULIB_GETCWD])
  67   GNULIB_GETDOMAINNAME=0;    AC_SUBST([GNULIB_GETDOMAINNAME])
  68   GNULIB_GETDTABLESIZE=0;    AC_SUBST([GNULIB_GETDTABLESIZE])
  69   GNULIB_GETGROUPS=0;        AC_SUBST([GNULIB_GETGROUPS])
  70   GNULIB_GETHOSTNAME=0;      AC_SUBST([GNULIB_GETHOSTNAME])
  71   GNULIB_GETLOGIN=0;         AC_SUBST([GNULIB_GETLOGIN])
  72   GNULIB_GETLOGIN_R=0;       AC_SUBST([GNULIB_GETLOGIN_R])
  73   GNULIB_GETPAGESIZE=0;      AC_SUBST([GNULIB_GETPAGESIZE])
  74   GNULIB_GETUSERSHELL=0;     AC_SUBST([GNULIB_GETUSERSHELL])
  75   GNULIB_LCHOWN=0;           AC_SUBST([GNULIB_LCHOWN])
  76   GNULIB_LINK=0;             AC_SUBST([GNULIB_LINK])
  77   GNULIB_LINKAT=0;           AC_SUBST([GNULIB_LINKAT])
  78   GNULIB_LSEEK=0;            AC_SUBST([GNULIB_LSEEK])
  79   GNULIB_PIPE=0;             AC_SUBST([GNULIB_PIPE])
  80   GNULIB_PIPE2=0;            AC_SUBST([GNULIB_PIPE2])
  81   GNULIB_PREAD=0;            AC_SUBST([GNULIB_PREAD])
  82   GNULIB_PWRITE=0;           AC_SUBST([GNULIB_PWRITE])
  83   GNULIB_READLINK=0;         AC_SUBST([GNULIB_READLINK])
  84   GNULIB_READLINKAT=0;       AC_SUBST([GNULIB_READLINKAT])
  85   GNULIB_RMDIR=0;            AC_SUBST([GNULIB_RMDIR])
  86   GNULIB_SLEEP=0;            AC_SUBST([GNULIB_SLEEP])
  87   GNULIB_SYMLINK=0;          AC_SUBST([GNULIB_SYMLINK])
  88   GNULIB_SYMLINKAT=0;        AC_SUBST([GNULIB_SYMLINKAT])
  89   GNULIB_TTYNAME_R=0;        AC_SUBST([GNULIB_TTYNAME_R])
  90   GNULIB_UNISTD_H_GETOPT=0;  AC_SUBST([GNULIB_UNISTD_H_GETOPT])
  91   GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
  92   GNULIB_UNLINK=0;           AC_SUBST([GNULIB_UNLINK])
  93   GNULIB_UNLINKAT=0;         AC_SUBST([GNULIB_UNLINKAT])
  94   GNULIB_USLEEP=0;           AC_SUBST([GNULIB_USLEEP])
  95   GNULIB_WRITE=0;            AC_SUBST([GNULIB_WRITE])
  96   dnl Assume proper GNU behavior unless another module says otherwise.
  97   HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
  98   HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
  99   HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
 100   HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
 101   HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
 102   HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
 103   HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
 104   HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
 105   HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
 106   HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
 107   HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
 108   HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
 109   HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
 110   HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
 111   HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
 112   HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
 113   HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
 114   HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
 115   HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
 116   HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
 117   HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
 118   HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
 119   HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
 120   HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
 121   HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
 122   HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
 123   HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
 124   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
 125   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
 126   HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
 127   HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
 128   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
 129   HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
 130   HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
 131   HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
 132   HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
 133   HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
 134   REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
 135   REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
 136   REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
 137   REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
 138   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
 139   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
 140   REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
 141   REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
 142   REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
 143   REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
 144   REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
 145   REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
 146   REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
 147   REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
 148   REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
 149   REPLACE_PWRITE=0;       AC_SUBST([REPLACE_PWRITE])
 150   REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
 151   REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
 152   REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
 153   REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
 154   REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
 155   REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
 156   REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
 157   REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
 158   REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
 159   UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
 160   UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
 161                            AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
 162 ])