1# unistd_h.m4 serial 56 2dnl Copyright (C) 2006-2011 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7dnl Written by Simon Josefsson, Bruno Haible. 8 9AC_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 group_member lchown link linkat lseek pipe pipe2 pread pwrite 40 readlink readlinkat rmdir sleep symlink symlinkat ttyname_r unlink unlinkat 41 usleep]) 42]) 43 44AC_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 53AC_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_GROUP_MEMBER=0; AC_SUBST([GNULIB_GROUP_MEMBER]) 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_PIPE=0; AC_SUBST([GNULIB_PIPE]) 81 GNULIB_PIPE2=0; AC_SUBST([GNULIB_PIPE2]) 82 GNULIB_PREAD=0; AC_SUBST([GNULIB_PREAD]) 83 GNULIB_PWRITE=0; AC_SUBST([GNULIB_PWRITE]) 84 GNULIB_READ=0; AC_SUBST([GNULIB_READ]) 85 GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK]) 86 GNULIB_READLINKAT=0; AC_SUBST([GNULIB_READLINKAT]) 87 GNULIB_RMDIR=0; AC_SUBST([GNULIB_RMDIR]) 88 GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) 89 GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK]) 90 GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT]) 91 GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R]) 92 GNULIB_UNISTD_H_GETOPT=0; AC_SUBST([GNULIB_UNISTD_H_GETOPT]) 93 GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING]) 94 GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE]) 95 GNULIB_UNLINK=0; AC_SUBST([GNULIB_UNLINK]) 96 GNULIB_UNLINKAT=0; AC_SUBST([GNULIB_UNLINKAT]) 97 GNULIB_USLEEP=0; AC_SUBST([GNULIB_USLEEP]) 98 GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE]) 99 dnl Assume proper GNU behavior unless another module says otherwise. 100 HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN]) 101 HAVE_DUP2=1; AC_SUBST([HAVE_DUP2]) 102 HAVE_DUP3=1; AC_SUBST([HAVE_DUP3]) 103 HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) 104 HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT]) 105 HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR]) 106 HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT]) 107 HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC]) 108 HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) 109 HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE]) 110 HAVE_GETGROUPS=1; AC_SUBST([HAVE_GETGROUPS]) 111 HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) 112 HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN]) 113 HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) 114 HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER]) 115 HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN]) 116 HAVE_LINK=1; AC_SUBST([HAVE_LINK]) 117 HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT]) 118 HAVE_PIPE=1; AC_SUBST([HAVE_PIPE]) 119 HAVE_PIPE2=1; AC_SUBST([HAVE_PIPE2]) 120 HAVE_PREAD=1; AC_SUBST([HAVE_PREAD]) 121 HAVE_PWRITE=1; AC_SUBST([HAVE_PWRITE]) 122 HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) 123 HAVE_READLINKAT=1; AC_SUBST([HAVE_READLINKAT]) 124 HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) 125 HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK]) 126 HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT]) 127 HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT]) 128 HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP]) 129 HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) 130 HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) 131 HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) 132 HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) 133 HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE]) 134 HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL]) 135 HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R]) 136 HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) 137 HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) 138 REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) 139 REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) 140 REPLACE_DUP=0; AC_SUBST([REPLACE_DUP]) 141 REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2]) 142 REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT]) 143 REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) 144 REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME]) 145 REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R]) 146 REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS]) 147 REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) 148 REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) 149 REPLACE_LINK=0; AC_SUBST([REPLACE_LINK]) 150 REPLACE_LINKAT=0; AC_SUBST([REPLACE_LINKAT]) 151 REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) 152 REPLACE_PREAD=0; AC_SUBST([REPLACE_PREAD]) 153 REPLACE_PWRITE=0; AC_SUBST([REPLACE_PWRITE]) 154 REPLACE_READ=0; AC_SUBST([REPLACE_READ]) 155 REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK]) 156 REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR]) 157 REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP]) 158 REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK]) 159 REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R]) 160 REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK]) 161 REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT]) 162 REPLACE_USLEEP=0; AC_SUBST([REPLACE_USLEEP]) 163 REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE]) 164 UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H]) 165 UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; 166 AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) 167]) 168