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emsApplication/3rdPartner/libiconv/srcm4/unistd_h.m4

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# unistd_h.m4 serial 90
dnl Copyright (C) 2006-2022 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_ONCE([gl_UNISTD_H],
[
dnl Ensure to expand the default settings once only, before all statements
dnl that occur in other macros.
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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 Ensure the type pid_t gets defined.
AC_REQUIRE([AC_TYPE_PID_T])
dnl Determine WINDOWS_64_BIT_OFF_T.
AC_REQUIRE([gl_TYPE_OFF_T])
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([[
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
/* 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 __CYGWIN__
# include <io.h>
# endif
#endif
]], [access chdir chown copy_file_range dup dup2 dup3 environ euidaccess
execl execle execlp execv execve execvp execvpe
faccessat fchdir
fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize
getentropy getgroups gethostname getlogin getlogin_r getpagesize getpass
getusershell setusershell endusershell
group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
readlink readlinkat rmdir sethostname sleep symlink symlinkat
truncate ttyname_r unlink unlinkat usleep])
AC_REQUIRE([AC_C_RESTRICT])
AC_CHECK_DECLS_ONCE([execvpe])
if test $ac_cv_have_decl_execvpe = no; then
HAVE_DECL_EXECVPE=0
fi
])
# gl_UNISTD_MODULE_INDICATOR([modulename])
# sets the shell variable that indicates the presence of the given module
# to a C preprocessor expression that will evaluate to 1.
# This macro invocation must not occur in macros that are AC_REQUIREd.
AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
[
dnl Ensure to expand the default settings once only.
gl_UNISTD_H_REQUIRE_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])
])
# Initializes the default values for AC_SUBSTed shell variables.
# This macro must not be AC_REQUIREd. It must only be invoked, and only
# outside of macros or in macros that are not AC_REQUIREd.
AC_DEFUN([gl_UNISTD_H_REQUIRE_DEFAULTS],
[
m4_defun(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS], [
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCESS])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHDIR])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHOWN])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CLOSE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPY_FILE_RANGE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP2])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP3])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ENVIRON])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EUIDACCESS])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECL])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLP])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECV])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVP])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVPE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FACCESSAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHDIR])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHOWNAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDATASYNC])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSYNC])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTRUNCATE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCWD])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDOMAINNAME])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDTABLESIZE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETENTROPY])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETGROUPS])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETHOSTNAME])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN_R])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETOPT_POSIX])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPAGESIZE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPASS])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPASS_GNU])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUSERSHELL])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GROUP_MEMBER])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISATTY])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHOWN])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINKAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSEEK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE2])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PREAD])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PWRITE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READ])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINKAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RMDIR])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETHOSTNAME])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SLEEP])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINKAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNCATE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TTYNAME_R])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_GETOPT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_NONBLOCKING])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_SIGPIPE])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINK])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINKAT])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_USLEEP])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WRITE])
dnl Support Microsoft deprecated alias function names by default.
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ACCESS], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHDIR], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CLOSE], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP2], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECL], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLE], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLP], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECV], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVE], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVP], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVPE], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETCWD], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETPID], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ISATTY], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_LSEEK], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_READ], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_RMDIR], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_SWAB], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UNLINK], [1])
gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_WRITE], [1])
])
m4_require(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS])
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
])
AC_DEFUN([gl_UNISTD_H_DEFAULTS],
[
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN])
HAVE_COPY_FILE_RANGE=1; AC_SUBST([HAVE_COPY_FILE_RANGE])
HAVE_DUP3=1; AC_SUBST([HAVE_DUP3])
HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS])
HAVE_EXECVPE=1; AC_SUBST([HAVE_EXECVPE])
HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT])
HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR])
HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT])
HAVE_FDATASYNC=1; AC_SUBST([HAVE_FDATASYNC])
HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC])
HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE])
HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE])
HAVE_GETENTROPY=1; AC_SUBST([HAVE_GETENTROPY])
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_GETPASS=1; AC_SUBST([HAVE_GETPASS])
HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER])
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_SETHOSTNAME=1; AC_SUBST([HAVE_SETHOSTNAME])
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_EXECVPE=1; AC_SUBST([HAVE_DECL_EXECVPE])
HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR])
HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC])
HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
HAVE_DECL_GETLOGIN=1; AC_SUBST([HAVE_DECL_GETLOGIN])
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_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME])
HAVE_DECL_TRUNCATE=1; AC_SUBST([HAVE_DECL_TRUNCATE])
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_ACCESS=0; AC_SUBST([REPLACE_ACCESS])
REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN])
REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE])
REPLACE_COPY_FILE_RANGE=0; AC_SUBST([REPLACE_COPY_FILE_RANGE])
REPLACE_DUP=0; AC_SUBST([REPLACE_DUP])
REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2])
REPLACE_EXECL=0; AC_SUBST([REPLACE_EXECL])
REPLACE_EXECLE=0; AC_SUBST([REPLACE_EXECLE])
REPLACE_EXECLP=0; AC_SUBST([REPLACE_EXECLP])
REPLACE_EXECV=0; AC_SUBST([REPLACE_EXECV])
REPLACE_EXECVE=0; AC_SUBST([REPLACE_EXECVE])
REPLACE_EXECVP=0; AC_SUBST([REPLACE_EXECVP])
REPLACE_EXECVPE=0; AC_SUBST([REPLACE_EXECVPE])
REPLACE_FACCESSAT=0; AC_SUBST([REPLACE_FACCESSAT])
REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT])
REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE])
REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD])
REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE])
REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R])
REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS])
REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE])
REPLACE_GETPASS=0; AC_SUBST([REPLACE_GETPASS])
REPLACE_GETPASS_FOR_GETPASS_GNU=0; AC_SUBST([REPLACE_GETPASS_FOR_GETPASS_GNU])
REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY])
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_READ=0; AC_SUBST([REPLACE_READ])
REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK])
REPLACE_READLINKAT=0; AC_SUBST([REPLACE_READLINKAT])
REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR])
REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP])
REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK])
REPLACE_SYMLINKAT=0; AC_SUBST([REPLACE_SYMLINKAT])
REPLACE_TRUNCATE=0; AC_SUBST([REPLACE_TRUNCATE])
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_SYS_RANDOM_H=0; AC_SUBST([UNISTD_H_HAVE_SYS_RANDOM_H])
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])
])
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