m4/unistd_h.m4

   1 # unistd_h.m4 serial 40
   2 dnl Copyright (C) 2006-2010 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
  18   AC_CHECK_HEADERS_ONCE([unistd.h])
  19   if test $ac_cv_header_unistd_h = yes; then
  20     HAVE_UNISTD_H=1
  21   else
  22     HAVE_UNISTD_H=0
  23   fi
  24   AC_SUBST([HAVE_UNISTD_H])
  25
  26   dnl Check for declarations of anything we want to poison if the
  27   dnl corresponding gnulib module is not in use.
  28   gl_WARN_ON_USE_PREPARE([[#include <unistd.h>
  29 /* Some systems declare various items in the wrong headers.  */
  30 #ifndef __GLIBC__
  31 # include <fcntl.h>
  32 # include <stdio.h>
  33 # include <stdlib.h>
  34 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  35 #  include <io.h>
  36 # endif
  37 #endif
  38     ]], [chown dup2 dup3 environ euidaccess faccessat fchdir fchownat
  39     fsync ftruncate getcwd getdomainname getdtablesize getgroups
  40     gethostname getlogin getlogin_r getpagesize getusershell setusershell
  41     endusershell lchown link linkat lseek pipe2 pread readlink readlinkat
  42     rmdir sleep symlink symlinkat unlink unlinkat usleep])
  43 ])
  44
  45 AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
  46 [
  47   dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  48   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  49   GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
  50   dnl Define it also as a C macro, for the benefit of the unit tests.
  51   gl_MODULE_INDICATOR([$1])
  52 ])
  53
  54 AC_DEFUN([gl_UNISTD_H_DEFAULTS],
  55 [
  56   GNULIB_CHOWN=0;            AC_SUBST([GNULIB_CHOWN])
  57   GNULIB_CLOSE=0;            AC_SUBST([GNULIB_CLOSE])
  58   GNULIB_DUP2=0;             AC_SUBST([GNULIB_DUP2])
  59   GNULIB_DUP3=0;             AC_SUBST([GNULIB_DUP3])
  60   GNULIB_ENVIRON=0;          AC_SUBST([GNULIB_ENVIRON])
  61   GNULIB_EUIDACCESS=0;       AC_SUBST([GNULIB_EUIDACCESS])
  62   GNULIB_FACCESSAT=0;        AC_SUBST([GNULIB_FACCESSAT])
  63   GNULIB_FCHDIR=0;           AC_SUBST([GNULIB_FCHDIR])
  64   GNULIB_FCHOWNAT=0;         AC_SUBST([GNULIB_FCHOWNAT])
  65   GNULIB_FSYNC=0;            AC_SUBST([GNULIB_FSYNC])
  66   GNULIB_FTRUNCATE=0;        AC_SUBST([GNULIB_FTRUNCATE])
  67   GNULIB_GETCWD=0;           AC_SUBST([GNULIB_GETCWD])
  68   GNULIB_GETDOMAINNAME=0;    AC_SUBST([GNULIB_GETDOMAINNAME])
  69   GNULIB_GETDTABLESIZE=0;    AC_SUBST([GNULIB_GETDTABLESIZE])
  70   GNULIB_GETGROUPS=0;        AC_SUBST([GNULIB_GETGROUPS])
  71   GNULIB_GETHOSTNAME=0;      AC_SUBST([GNULIB_GETHOSTNAME])
  72   GNULIB_GETLOGIN=0;         AC_SUBST([GNULIB_GETLOGIN])
  73   GNULIB_GETLOGIN_R=0;       AC_SUBST([GNULIB_GETLOGIN_R])
  74   GNULIB_GETPAGESIZE=0;      AC_SUBST([GNULIB_GETPAGESIZE])
  75   GNULIB_GETUSERSHELL=0;     AC_SUBST([GNULIB_GETUSERSHELL])
  76   GNULIB_LCHOWN=0;           AC_SUBST([GNULIB_LCHOWN])
  77   GNULIB_LINK=0;             AC_SUBST([GNULIB_LINK])
  78   GNULIB_LINKAT=0;           AC_SUBST([GNULIB_LINKAT])
  79   GNULIB_LSEEK=0;            AC_SUBST([GNULIB_LSEEK])
  80   GNULIB_PIPE2=0;            AC_SUBST([GNULIB_PIPE2])
  81   GNULIB_PREAD=0;            AC_SUBST([GNULIB_PREAD])
  82   GNULIB_READLINK=0;         AC_SUBST([GNULIB_READLINK])
  83   GNULIB_READLINKAT=0;       AC_SUBST([GNULIB_READLINKAT])
  84   GNULIB_RMDIR=0;            AC_SUBST([GNULIB_RMDIR])
  85   GNULIB_SLEEP=0;            AC_SUBST([GNULIB_SLEEP])
  86   GNULIB_SYMLINK=0;          AC_SUBST([GNULIB_SYMLINK])
  87   GNULIB_SYMLINKAT=0;        AC_SUBST([GNULIB_SYMLINKAT])
  88   GNULIB_UNISTD_H_GETOPT=0;  AC_SUBST([GNULIB_UNISTD_H_GETOPT])
  89   GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
  90   GNULIB_UNLINK=0;           AC_SUBST([GNULIB_UNLINK])
  91   GNULIB_UNLINKAT=0;         AC_SUBST([GNULIB_UNLINKAT])
  92   GNULIB_USLEEP=0;           AC_SUBST([GNULIB_USLEEP])
  93   GNULIB_WRITE=0;            AC_SUBST([GNULIB_WRITE])
  94   dnl Assume proper GNU behavior unless another module says otherwise.
  95   HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
  96   HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
  97   HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
  98   HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
  99   HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
 100   HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
 101   HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
 102   HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
 103   HAVE_GETDOMAINNAME=1;   AC_SUBST([HAVE_GETDOMAINNAME])
 104   HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
 105   HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
 106   HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
 107   HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
 108   HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
 109   HAVE_GETUSERSHELL=1;    AC_SUBST([HAVE_GETUSERSHELL])
 110   HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
 111   HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
 112   HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
 113   HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
 114   HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
 115   HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
 116   HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
 117   HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
 118   HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
 119   HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
 120   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
 121   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
 122   HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
 123   HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
 124   HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
 125   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
 126   REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
 127   REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
 128   REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
 129   REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
 130   REPLACE_FCHDIR=0;       AC_SUBST([REPLACE_FCHDIR])
 131   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
 132   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
 133   REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
 134   REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
 135   REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
 136   REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
 137   REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
 138   REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
 139   REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
 140   REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
 141   REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
 142   REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
 143   REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
 144   REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
 145   REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
 146   REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
 147   REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
 148   UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
 149   UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
 150                            AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
 151 ])