Restoring authorship annotation for <axc@yandex-team.ru>. Commit 1 of 2.

1 files changed, 1787 insertions, 1787 deletions

diff --git a/contrib/tools/bison/gnulib/platform/win64/unistd.h b/contrib/tools/bison/gnulib/platform/win64/unistd.h
index 06babd93a7..c0c9b1a055 100644
--- a/contrib/tools/bison/gnulib/platform/win64/unistd.h
+++ b/contrib/tools/bison/gnulib/platform/win64/unistd.h
@@ -1,1787 +1,1787 @@
-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
-/* Substitute for and wrapper around <unistd.h>.
-   Copyright (C) 2003-2013 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _GL_M4_UNISTD_H
-
-#if __GNUC__ >= 3
-
-#endif
-
-
-/* The include_next requires a split double-inclusion guard.  */
-#if 0
-# include <unistd.h>
-#endif
-
-/* Get all possible declarations of gethostname().  */
-#if 0 && 0 \
-  && !defined _GL_INCLUDING_WINSOCK2_H
-# define _GL_INCLUDING_WINSOCK2_H
-# include <winsock2.h>
-# undef _GL_INCLUDING_WINSOCK2_H
-#endif
-
-#if !defined _GL_M4_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
-#define _GL_M4_UNISTD_H
-
-/* NetBSD 5.0 mis-defines NULL.  Also get size_t.  */
-#include <stddef.h>
-
-/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>.  */
-/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
-     || ((0 || defined GNULIB_POSIXCHECK) \
-         && defined __CYGWIN__)) \
-    && ! defined __GLIBC__
-# include <stdio.h>
-#endif
-
-/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if (0 || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
-    && ! defined __GLIBC__
-# include <fcntl.h>
-#endif
-
-/* mingw fails to declare _exit in <unistd.h>.  */
-/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
-   <unistd.h>.  */
-/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>.  */
-/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
-   included here.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if !defined __GLIBC__ && !defined __osf__
-# define __need_system_stdlib_h
-# include <stdlib.h>
-# undef __need_system_stdlib_h
-#endif
-
-/* Native Windows platforms declare chdir, getcwd, rmdir in
-   <io.h> and/or <direct.h>, not in <unistd.h>.
-   They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
-   lseek(), read(), unlink(), write() in <io.h>.  */
-#if ((1 || IN_M4_GNULIB_TESTS || 1 \
-      || defined GNULIB_POSIXCHECK) \
-     && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
-# include <io.h>     /* mingw32, mingw64 */
-# include <direct.h> /* mingw64, MSVC 9 */
-#elif (1 || IN_M4_GNULIB_TESTS || 1 || 0 \
-       || 1 || 0 || 0 || IN_M4_GNULIB_TESTS \
-       || defined GNULIB_POSIXCHECK) \
-      && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-# include <io.h>
-#endif
-
-/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
-   NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if ((0 && (defined _AIX || defined __osf__)) \
-     || (0 && defined __TANDEM)) \
-    && !defined __GLIBC__
-# include <netdb.h>
-#endif
-
-/* MSVC defines off_t in <sys/types.h>.
-   May also define off_t to a 64-bit type on native Windows.  */
-#if !0 || 1
-/* Get off_t.  */
-# include <sys/types.h>
-#endif
-
-#if (0 || IN_M4_GNULIB_TESTS \
-     || 1 || 0 \
-     || 0 || 0 || defined GNULIB_POSIXCHECK)
-/* Get ssize_t.  */
-# include <sys/types.h>
-#endif
-
-/* Get getopt(), optarg, optind, opterr, optopt.
-   But avoid namespace pollution on glibc systems.  */
-#if 01 && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
-# define __need_getopt
-# include <getopt.h>
-#endif
-
-#ifndef _GL_INLINE_HEADER_BEGIN
-# error "Please include config.h first."
-#endif
-_GL_INLINE_HEADER_BEGIN
-#ifndef _GL_UNISTD_INLINE
-# define _GL_UNISTD_INLINE _GL_INLINE
-#endif
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-#ifndef _GL_CXXDEFS_H
-#define _GL_CXXDEFS_H
-
-
-/* _GL_EXTERN_C declaration;
-   performs the declaration with C linkage.  */
-#if defined __cplusplus
-# define _GL_EXTERN_C extern "C"
-#else
-# define _GL_EXTERN_C extern
-#endif
-
-/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
-   declares a replacement function, named rpl_func, with the given prototype,
-   consisting of return type, parameters, and attributes.
-   Example:
-     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
-                                  _GL_ARG_NONNULL ((1)));
- */
-#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
-  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
-#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
-  _GL_EXTERN_C rettype rpl_func parameters_and_attributes
-
-/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
-   declares the system function, named func, with the given prototype,
-   consisting of return type, parameters, and attributes.
-   Example:
-     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
-                                  _GL_ARG_NONNULL ((1)));
- */
-#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
-  _GL_EXTERN_C rettype func parameters_and_attributes
-
-/* _GL_CXXALIAS_RPL (func, rettype, parameters);
-   declares a C++ alias called GNULIB_NAMESPACE::func
-   that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
-   Example:
-     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
- */
-#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
-  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                                \
-    {                                                         \
-      rettype (*const func) parameters = ::rpl_func;          \
-    }                                                         \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
-   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
-   except that the C function rpl_func may have a slightly different
-   declaration.  A cast is used to silence the "invalid conversion" error
-   that would otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                                     \
-    {                                                              \
-      rettype (*const func) parameters =                           \
-        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
-    }                                                              \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS (func, rettype, parameters);
-   declares a C++ alias called GNULIB_NAMESPACE::func
-   that redirects to the system provided function func, if GNULIB_NAMESPACE
-   is defined.
-   Example:
-     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
- */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-  /* If we were to write
-       rettype (*const func) parameters = ::func;
-     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
-     better (remove an indirection through a 'static' pointer variable),
-     but then the _GL_CXXALIASWARN macro below would cause a warning not only
-     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
-# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                     \
-    {                                              \
-      static rettype (*func) parameters = ::func;  \
-    }                                              \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
-   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
-   except that the C function func may have a slightly different declaration.
-   A cast is used to silence the "invalid conversion" error that would
-   otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                          \
-    {                                                   \
-      static rettype (*func) parameters =               \
-        reinterpret_cast<rettype(*)parameters>(::func); \
-    }                                                   \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
-   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
-   except that the C function is picked among a set of overloaded functions,
-   namely the one with rettype2 and parameters2.  Two consecutive casts
-   are used to silence the "cannot find a match" and "invalid conversion"
-   errors that would otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-  /* The outer cast must be a reinterpret_cast.
-     The inner cast: When the function is defined as a set of overloaded
-     functions, it works as a static_cast<>, choosing the designated variant.
-     When the function is defined as a single variant, it works as a
-     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
-# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
-    namespace GNULIB_NAMESPACE                                                \
-    {                                                                         \
-      static rettype (*func) parameters =                                     \
-        reinterpret_cast<rettype(*)parameters>(                               \
-          (rettype2(*)parameters2)(::func));                                  \
-    }                                                                         \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIASWARN (func);
-   causes a warning to be emitted when ::func is used but not when
-   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
-   variants.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIASWARN(func) \
-   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
-# define _GL_CXXALIASWARN_1(func,namespace) \
-   _GL_CXXALIASWARN_2 (func, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
-   we enable the warning only when not optimizing.  */
-# if !__OPTIMIZE__
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-    _GL_WARN_ON_USE (func, \
-                     "The symbol ::" #func " refers to the system function. " \
-                     "Use " #namespace "::" #func " instead.")
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-     extern __typeof__ (func) func
-# else
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-     _GL_EXTERN_C int _gl_cxxalias_dummy
-# endif
-#else
-# define _GL_CXXALIASWARN(func) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
-   causes a warning to be emitted when the given overloaded variant of ::func
-   is used but not when GNULIB_NAMESPACE::func is used.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
-   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
-                        GNULIB_NAMESPACE)
-# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
-   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
-   we enable the warning only when not optimizing.  */
-# if !__OPTIMIZE__
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-    _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
-                         "The symbol ::" #func " refers to the system function. " \
-                         "Use " #namespace "::" #func " instead.")
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-     extern __typeof__ (func) func
-# else
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-     _GL_EXTERN_C int _gl_cxxalias_dummy
-# endif
-#else
-# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-#endif /* _GL_CXXDEFS_H */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
-   that the values passed as arguments n, ..., m must be non-NULL pointers.
-   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
-#ifndef _GL_ARG_NONNULL
-# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
-#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
-# else
-#  define _GL_ARG_NONNULL(params)
-# endif
-#endif
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-#ifndef _GL_WARN_ON_USE
-
-# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
-/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
-#  define _GL_WARN_ON_USE(function, message) \
-extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-/* Verify the existence of the function.  */
-#  define _GL_WARN_ON_USE(function, message) \
-extern __typeof__ (function) function
-# else /* Unsupported.  */
-#  define _GL_WARN_ON_USE(function, message) \
-_GL_WARN_EXTERN_C int _gl_warn_on_use
-# endif
-#endif
-
-/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
-   is like _GL_WARN_ON_USE (function, "string"), except that the function is
-   declared with the given prototype, consisting of return type, parameters,
-   and attributes.
-   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
-   not work in this case.  */
-#ifndef _GL_WARN_ON_USE_CXX
-# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-extern rettype function parameters_and_attributes \
-     __attribute__ ((__warning__ (msg)))
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-/* Verify the existence of the function.  */
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-extern rettype function parameters_and_attributes
-# else /* Unsupported.  */
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-_GL_WARN_EXTERN_C int _gl_warn_on_use
-# endif
-#endif
-
-/* _GL_WARN_EXTERN_C declaration;
-   performs the declaration with C linkage.  */
-#ifndef _GL_WARN_EXTERN_C
-# if defined __cplusplus
-#  define _GL_WARN_EXTERN_C extern "C"
-# else
-#  define _GL_WARN_EXTERN_C extern
-# endif
-#endif
-
-
-/* Hide some function declarations from <winsock2.h>.  */
-
-#if 0 && 0
-# if !defined _GL_M4_SYS_SOCKET_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef socket
-#   define socket              socket_used_without_including_sys_socket_h
-#   undef connect
-#   define connect             connect_used_without_including_sys_socket_h
-#   undef accept
-#   define accept              accept_used_without_including_sys_socket_h
-#   undef bind
-#   define bind                bind_used_without_including_sys_socket_h
-#   undef getpeername
-#   define getpeername         getpeername_used_without_including_sys_socket_h
-#   undef getsockname
-#   define getsockname         getsockname_used_without_including_sys_socket_h
-#   undef getsockopt
-#   define getsockopt          getsockopt_used_without_including_sys_socket_h
-#   undef listen
-#   define listen              listen_used_without_including_sys_socket_h
-#   undef recv
-#   define recv                recv_used_without_including_sys_socket_h
-#   undef send
-#   define send                send_used_without_including_sys_socket_h
-#   undef recvfrom
-#   define recvfrom            recvfrom_used_without_including_sys_socket_h
-#   undef sendto
-#   define sendto              sendto_used_without_including_sys_socket_h
-#   undef setsockopt
-#   define setsockopt          setsockopt_used_without_including_sys_socket_h
-#   undef shutdown
-#   define shutdown            shutdown_used_without_including_sys_socket_h
-#  else
-    _GL_WARN_ON_USE (socket,
-                     "socket() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (connect,
-                     "connect() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (accept,
-                     "accept() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (bind,
-                     "bind() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getpeername,
-                     "getpeername() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getsockname,
-                     "getsockname() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getsockopt,
-                     "getsockopt() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (listen,
-                     "listen() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (recv,
-                     "recv() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (send,
-                     "send() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (recvfrom,
-                     "recvfrom() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (sendto,
-                     "sendto() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (setsockopt,
-                     "setsockopt() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (shutdown,
-                     "shutdown() used without including <sys/socket.h>");
-#  endif
-# endif
-# if !defined _GL_M4_SYS_SELECT_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef select
-#   define select              select_used_without_including_sys_select_h
-#  else
-    _GL_WARN_ON_USE (select,
-                     "select() used without including <sys/select.h>");
-#  endif
-# endif
-#endif
-
-
-/* OS/2 EMX lacks these macros.  */
-#ifndef STDIN_FILENO
-# define STDIN_FILENO 0
-#endif
-#ifndef STDOUT_FILENO
-# define STDOUT_FILENO 1
-#endif
-#ifndef STDERR_FILENO
-# define STDERR_FILENO 2
-#endif
-
-/* Ensure *_OK macros exist.  */
-#ifndef F_OK
-# define F_OK 0
-# define X_OK 1
-# define W_OK 2
-# define R_OK 4
-#endif
-
-
-/* Declare overridden functions.  */
-
-
-#if defined GNULIB_POSIXCHECK
-/* The access() function is a security risk.  */
-_GL_WARN_ON_USE (access, "the access function is a security risk - "
-                 "use the gnulib module faccessat instead");
-#endif
-
-
-#if 1
-_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIASWARN (chdir);
-#elif defined GNULIB_POSIXCHECK
-# undef chdir
-# if HAVE_RAW_DECL_CHDIR
-_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
-                 "use gnulib module chdir for portability");
-# endif
-#endif
-
-
-#if 0
-/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
-   to GID (if GID is not -1).  Follow symbolic links.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef chown
-#   define chown rpl_chown
-#  endif
-_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
-                              _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
-                              _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
-# endif
-_GL_CXXALIASWARN (chown);
-#elif defined GNULIB_POSIXCHECK
-# undef chown
-# if HAVE_RAW_DECL_CHOWN
-_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
-                 "doesn't treat a uid or gid of -1 on some systems - "
-                 "use gnulib module chown for portability");
-# endif
-#endif
-
-
-#if 1
-# if 1
-/* Automatically included by modules that need a replacement for close.  */
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef close
-#   define close rpl_close
-#  endif
-_GL_FUNCDECL_RPL (close, int, (int fd));
-_GL_CXXALIAS_RPL (close, int, (int fd));
-# else
-_GL_CXXALIAS_SYS (close, int, (int fd));
-# endif
-_GL_CXXALIASWARN (close);
-#elif 0
-# undef close
-# define close close_used_without_requesting_gnulib_module_close
-#elif defined GNULIB_POSIXCHECK
-# undef close
-/* Assume close is always declared.  */
-_GL_WARN_ON_USE (close, "close does not portably work on sockets - "
-                 "use gnulib module close for portability");
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup rpl_dup
-#  endif
-_GL_FUNCDECL_RPL (dup, int, (int oldfd));
-_GL_CXXALIAS_RPL (dup, int, (int oldfd));
-# else
-_GL_CXXALIAS_SYS (dup, int, (int oldfd));
-# endif
-_GL_CXXALIASWARN (dup);
-#elif defined GNULIB_POSIXCHECK
-# undef dup
-# if HAVE_RAW_DECL_DUP
-_GL_WARN_ON_USE (dup, "dup is unportable - "
-                 "use gnulib module dup for portability");
-# endif
-#endif
-
-
-#if 1
-/* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if
-   NEWFD = OLDFD, otherwise close NEWFD first if it is open.
-   Return newfd if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup2 rpl_dup2
-#  endif
-_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
-_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
-#  endif
-_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
-# endif
-_GL_CXXALIASWARN (dup2);
-#elif defined GNULIB_POSIXCHECK
-# undef dup2
-# if HAVE_RAW_DECL_DUP2
-_GL_WARN_ON_USE (dup2, "dup2 is unportable - "
-                 "use gnulib module dup2 for portability");
-# endif
-#endif
-
-
-#if 0
-/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
-   specified flags.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   Close NEWFD first if it is open.
-   Return newfd if successful, otherwise -1 and errno set.
-   See the Linux man page at
-   <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup3 rpl_dup3
-#  endif
-_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
-_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
-# else
-_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
-_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
-# endif
-_GL_CXXALIASWARN (dup3);
-#elif defined GNULIB_POSIXCHECK
-# undef dup3
-# if HAVE_RAW_DECL_DUP3
-_GL_WARN_ON_USE (dup3, "dup3 is unportable - "
-                 "use gnulib module dup3 for portability");
-# endif
-#endif
-
-
-#if 1
-# if !1
-/* Set of environment variables and values.  An array of strings of the form
-   "VARIABLE=VALUE", terminated with a NULL.  */
-#  if defined __APPLE__ && defined __MACH__
-#   include <crt_externs.h>
-#   define environ (*_NSGetEnviron ())
-#  else
-#   ifdef __cplusplus
-extern "C" {
-#   endif
-extern char **environ;
-#   ifdef __cplusplus
-}
-#   endif
-#  endif
-# endif
-#elif defined GNULIB_POSIXCHECK
-# if HAVE_RAW_DECL_ENVIRON
-_GL_UNISTD_INLINE char ***
-rpl_environ (void)
-{
-  return &environ;
-}
-_GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
-                 "use gnulib module environ for portability");
-#  undef environ
-#  define environ (*rpl_environ ())
-# endif
-#endif
-
-
-#if 0
-/* Like access(), except that it uses the effective user id and group id of
-   the current process.  */
-# if !1
-_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
-                                   _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
-_GL_CXXALIASWARN (euidaccess);
-# if defined GNULIB_POSIXCHECK
-/* Like access(), this function is a security risk.  */
-_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
-                 "use the gnulib module faccessat instead");
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef euidaccess
-# if HAVE_RAW_DECL_EUIDACCESS
-_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
-                 "use gnulib module euidaccess for portability");
-# endif
-#endif
-
-
-#if 0
-# if !1
-_GL_FUNCDECL_SYS (faccessat, int,
-                  (int fd, char const *file, int mode, int flag)
-                  _GL_ARG_NONNULL ((2)));
-# endif
-_GL_CXXALIAS_SYS (faccessat, int,
-                  (int fd, char const *file, int mode, int flag));
-_GL_CXXALIASWARN (faccessat);
-#elif defined GNULIB_POSIXCHECK
-# undef faccessat
-# if HAVE_RAW_DECL_FACCESSAT
-_GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
-                 "use gnulib module faccessat for portability");
-# endif
-#endif
-
-
-#if 0
-/* Change the process' current working directory to the directory on which
-   the given file descriptor is open.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>.  */
-# if ! 1
-_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
-
-/* Gnulib internal hooks needed to maintain the fchdir metadata.  */
-_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
-     _GL_ARG_NONNULL ((2));
-_GL_EXTERN_C void _gl_unregister_fd (int fd);
-_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
-_GL_EXTERN_C const char *_gl_directory_name (int fd);
-
-# else
-#  if !1
-_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
-#  endif
-# endif
-_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
-_GL_CXXALIASWARN (fchdir);
-#elif defined GNULIB_POSIXCHECK
-# undef fchdir
-# if HAVE_RAW_DECL_FCHDIR
-_GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
-                 "use gnulib module fchdir for portability");
-# endif
-#endif
-
-
-#if 0
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef fchownat
-#   define fchownat rpl_fchownat
-#  endif
-_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag));
-# endif
-_GL_CXXALIASWARN (fchownat);
-#elif defined GNULIB_POSIXCHECK
-# undef fchownat
-# if HAVE_RAW_DECL_FCHOWNAT
-_GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
-                 "use gnulib module openat for portability");
-# endif
-#endif
-
-
-#if 0
-/* Synchronize changes to a file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>.  */
-# if !1 || !1
-_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
-_GL_CXXALIASWARN (fdatasync);
-#elif defined GNULIB_POSIXCHECK
-# undef fdatasync
-# if HAVE_RAW_DECL_FDATASYNC
-_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
-                 "use gnulib module fdatasync for portability");
-# endif
-#endif
-
-
-#if 0
-/* Synchronize changes, including metadata, to a file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>.  */
-# if !1
-_GL_FUNCDECL_SYS (fsync, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (fsync, int, (int fd));
-_GL_CXXALIASWARN (fsync);
-#elif defined GNULIB_POSIXCHECK
-# undef fsync
-# if HAVE_RAW_DECL_FSYNC
-_GL_WARN_ON_USE (fsync, "fsync is unportable - "
-                 "use gnulib module fsync for portability");
-# endif
-#endif
-
-
-#if 0
-/* Change the size of the file to which FD is opened to become equal to LENGTH.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ftruncate
-#   define ftruncate rpl_ftruncate
-#  endif
-_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
-_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
-#  endif
-_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
-# endif
-_GL_CXXALIASWARN (ftruncate);
-#elif defined GNULIB_POSIXCHECK
-# undef ftruncate
-# if HAVE_RAW_DECL_FTRUNCATE
-_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
-                 "use gnulib module ftruncate for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-/* Get the name of the current working directory, and put it in SIZE bytes
-   of BUF.
-   Return BUF if successful, or NULL if the directory couldn't be determined
-   or SIZE was too small.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
-   Additionally, the gnulib module 'getcwd' guarantees the following GNU
-   extension: If BUF is NULL, an array is allocated with 'malloc'; the array
-   is SIZE bytes long, unless SIZE == 0, in which case it is as big as
-   necessary.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getcwd rpl_getcwd
-#  endif
-_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
-_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
-# else
-/* Need to cast, because on mingw, the second parameter is
-                                                   int size.  */
-_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
-# endif
-_GL_CXXALIASWARN (getcwd);
-#elif defined GNULIB_POSIXCHECK
-# undef getcwd
-# if HAVE_RAW_DECL_GETCWD
-_GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
-                 "use gnulib module getcwd for portability");
-# endif
-#endif
-
-
-#if 0
-/* Return the NIS domain name of the machine.
-   WARNING! The NIS domain name is unrelated to the fully qualified host name
-            of the machine.  It is also unrelated to email addresses.
-   WARNING! The NIS domain name is usually the empty string or "(none)" when
-            not using NIS.
-
-   Put up to LEN bytes of the NIS domain name into NAME.
-   Null terminate it if the name is shorter than LEN.
-   If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
-   Return 0 if successful, otherwise set errno and return -1.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getdomainname
-#   define getdomainname rpl_getdomainname
-#  endif
-_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
-                                      _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
-                                      _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
-# endif
-_GL_CXXALIASWARN (getdomainname);
-#elif defined GNULIB_POSIXCHECK
-# undef getdomainname
-# if HAVE_RAW_DECL_GETDOMAINNAME
-_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
-                 "use gnulib module getdomainname for portability");
-# endif
-#endif
-
-
-#if 1
-/* Return the maximum number of file descriptors in the current process.
-   In POSIX, this is same as sysconf (_SC_OPEN_MAX).  */
-# if !0
-_GL_FUNCDECL_SYS (getdtablesize, int, (void));
-# endif
-_GL_CXXALIAS_SYS (getdtablesize, int, (void));
-_GL_CXXALIASWARN (getdtablesize);
-#elif defined GNULIB_POSIXCHECK
-# undef getdtablesize
-# if HAVE_RAW_DECL_GETDTABLESIZE
-_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
-                 "use gnulib module getdtablesize for portability");
-# endif
-#endif
-
-
-#if 0
-/* Return the supplemental groups that the current process belongs to.
-   It is unspecified whether the effective group id is in the list.
-   If N is 0, return the group count; otherwise, N describes how many
-   entries are available in GROUPS.  Return -1 and set errno if N is
-   not 0 and not large enough.  Fails with ENOSYS on some systems.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getgroups
-#   define getgroups rpl_getgroups
-#  endif
-_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
-_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
-#  endif
-_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
-# endif
-_GL_CXXALIASWARN (getgroups);
-#elif defined GNULIB_POSIXCHECK
-# undef getgroups
-# if HAVE_RAW_DECL_GETGROUPS
-_GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
-                 "use gnulib module getgroups for portability");
-# endif
-#endif
-
-
-#if 0
-/* Return the standard host name of the machine.
-   WARNING! The host name may or may not be fully qualified.
-
-   Put up to LEN bytes of the host name into NAME.
-   Null terminate it if the name is shorter than LEN.
-   If the host name is longer than LEN, set errno = EINVAL and return -1.
-   Return 0 if successful, otherwise set errno and return -1.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef gethostname
-#   define gethostname rpl_gethostname
-#  endif
-_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-#  endif
-/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
-   parameter is
-                                                      int len.  */
-_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
-# endif
-_GL_CXXALIASWARN (gethostname);
-#elif 0
-# undef gethostname
-# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
-#elif defined GNULIB_POSIXCHECK
-# undef gethostname
-# if HAVE_RAW_DECL_GETHOSTNAME
-_GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
-                 "use gnulib module gethostname for portability");
-# endif
-#endif
-
-
-#if 0
-/* Returns the user's login name, or NULL if it cannot be found.  Upon error,
-   returns NULL with errno set.
-
-   See <http://www.opengroup.org/susv3xsh/getlogin.html>.
-
-   Most programs don't need to use this function, because the information is
-   available through environment variables:
-     ${LOGNAME-$USER}        on Unix platforms,
-     $USERNAME               on native Windows platforms.
- */
-# if !1
-_GL_FUNCDECL_SYS (getlogin, char *, (void));
-# endif
-_GL_CXXALIAS_SYS (getlogin, char *, (void));
-_GL_CXXALIASWARN (getlogin);
-#elif defined GNULIB_POSIXCHECK
-# undef getlogin
-# if HAVE_RAW_DECL_GETLOGIN
-_GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
-                 "use gnulib module getlogin for portability");
-# endif
-#endif
-
-
-#if 0
-/* Copies the user's login name to NAME.
-   The array pointed to by NAME has room for SIZE bytes.
-
-   Returns 0 if successful.  Upon error, an error number is returned, or -1 in
-   the case that the login name cannot be found but no specific error is
-   provided (this case is hopefully rare but is left open by the POSIX spec).
-
-   See <http://www.opengroup.org/susv3xsh/getlogin.html>.
-
-   Most programs don't need to use this function, because the information is
-   available through environment variables:
-     ${LOGNAME-$USER}        on Unix platforms,
-     $USERNAME               on native Windows platforms.
- */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getlogin_r rpl_getlogin_r
-#  endif
-_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
-                                   _GL_ARG_NONNULL ((1)));
-#  endif
-/* Need to cast, because on Solaris 10 systems, the second argument is
-                                                     int size.  */
-_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
-# endif
-_GL_CXXALIASWARN (getlogin_r);
-#elif defined GNULIB_POSIXCHECK
-# undef getlogin_r
-# if HAVE_RAW_DECL_GETLOGIN_R
-_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
-                 "use gnulib module getlogin_r for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getpagesize rpl_getpagesize
-#  endif
-_GL_FUNCDECL_RPL (getpagesize, int, (void));
-_GL_CXXALIAS_RPL (getpagesize, int, (void));
-# else
-#  if !0
-#   if !defined getpagesize
-/* This is for POSIX systems.  */
-#    if !defined _gl_getpagesize && defined _SC_PAGESIZE
-#     if ! (defined __VMS && __VMS_VER < 70000000)
-#      define _gl_getpagesize() sysconf (_SC_PAGESIZE)
-#     endif
-#    endif
-/* This is for older VMS.  */
-#    if !defined _gl_getpagesize && defined __VMS
-#     ifdef __ALPHA
-#      define _gl_getpagesize() 8192
-#     else
-#      define _gl_getpagesize() 512
-#     endif
-#    endif
-/* This is for BeOS.  */
-#    if !defined _gl_getpagesize && 0
-#     include <OS.h>
-#     if defined B_PAGE_SIZE
-#      define _gl_getpagesize() B_PAGE_SIZE
-#     endif
-#    endif
-/* This is for AmigaOS4.0.  */
-#    if !defined _gl_getpagesize && defined __amigaos4__
-#     define _gl_getpagesize() 2048
-#    endif
-/* This is for older Unix systems.  */
-#    if !defined _gl_getpagesize && 0
-#     include <sys/param.h>
-#     ifdef EXEC_PAGESIZE
-#      define _gl_getpagesize() EXEC_PAGESIZE
-#     else
-#      ifdef NBPG
-#       ifndef CLSIZE
-#        define CLSIZE 1
-#       endif
-#       define _gl_getpagesize() (NBPG * CLSIZE)
-#      else
-#       ifdef NBPC
-#        define _gl_getpagesize() NBPC
-#       endif
-#      endif
-#     endif
-#    endif
-#    if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#     define getpagesize() _gl_getpagesize ()
-#    else
-#     if !GNULIB_defined_getpagesize_function
-_GL_UNISTD_INLINE int
-getpagesize ()
-{
-  return _gl_getpagesize ();
-}
-#      define GNULIB_defined_getpagesize_function 1
-#     endif
-#    endif
-#   endif
-#  endif
-/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t.  */
-_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
-# endif
-# if 0
-_GL_CXXALIASWARN (getpagesize);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef getpagesize
-# if HAVE_RAW_DECL_GETPAGESIZE
-_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
-                 "use gnulib module getpagesize for portability");
-# endif
-#endif
-
-
-#if 0
-/* Return the next valid login shell on the system, or NULL when the end of
-   the list has been reached.  */
-# if !1
-_GL_FUNCDECL_SYS (getusershell, char *, (void));
-# endif
-_GL_CXXALIAS_SYS (getusershell, char *, (void));
-_GL_CXXALIASWARN (getusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef getusershell
-# if HAVE_RAW_DECL_GETUSERSHELL
-_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-#if 0
-/* Rewind to pointer that is advanced at each getusershell() call.  */
-# if !1
-_GL_FUNCDECL_SYS (setusershell, void, (void));
-# endif
-_GL_CXXALIAS_SYS (setusershell, void, (void));
-_GL_CXXALIASWARN (setusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef setusershell
-# if HAVE_RAW_DECL_SETUSERSHELL
-_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-#if 0
-/* Free the pointer that is advanced at each getusershell() call and
-   associated resources.  */
-# if !1
-_GL_FUNCDECL_SYS (endusershell, void, (void));
-# endif
-_GL_CXXALIAS_SYS (endusershell, void, (void));
-_GL_CXXALIASWARN (endusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef endusershell
-# if HAVE_RAW_DECL_ENDUSERSHELL
-_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-
-#if 0
-/* Determine whether group id is in calling user's group list.  */
-# if !1
-_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
-# endif
-_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
-_GL_CXXALIASWARN (group_member);
-#elif defined GNULIB_POSIXCHECK
-# undef group_member
-# if HAVE_RAW_DECL_GROUP_MEMBER
-_GL_WARN_ON_USE (group_member, "group_member is unportable - "
-                 "use gnulib module group-member for portability");
-# endif
-#endif
-
-
-#if 0
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef isatty
-#   define isatty rpl_isatty
-#  endif
-_GL_FUNCDECL_RPL (isatty, int, (int fd));
-_GL_CXXALIAS_RPL (isatty, int, (int fd));
-# else
-_GL_CXXALIAS_SYS (isatty, int, (int fd));
-# endif
-_GL_CXXALIASWARN (isatty);
-#elif defined GNULIB_POSIXCHECK
-# undef isatty
-# if HAVE_RAW_DECL_ISATTY
-_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
-                 "use gnulib module isatty for portability");
-# endif
-#endif
-
-
-#if 0
-/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
-   to GID (if GID is not -1).  Do not follow symbolic links.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef lchown
-#   define lchown rpl_lchown
-#  endif
-_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
-                               _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
-                               _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
-# endif
-_GL_CXXALIASWARN (lchown);
-#elif defined GNULIB_POSIXCHECK
-# undef lchown
-# if HAVE_RAW_DECL_LCHOWN
-_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
-                 "use gnulib module lchown for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-/* Create a new hard link for an existing file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define link rpl_link
-#  endif
-_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
-                             _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
-# else
-#  if !0
-_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
-                             _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
-# endif
-_GL_CXXALIASWARN (link);
-#elif defined GNULIB_POSIXCHECK
-# undef link
-# if HAVE_RAW_DECL_LINK
-_GL_WARN_ON_USE (link, "link is unportable - "
-                 "use gnulib module link for portability");
-# endif
-#endif
-
-
-#if 0
-/* Create a new hard link for an existing file, relative to two
-   directories.  FLAG controls whether symlinks are followed.
-   Return 0 if successful, otherwise -1 and errno set.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef linkat
-#   define linkat rpl_linkat
-#  endif
-_GL_FUNCDECL_RPL (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag)
-                  _GL_ARG_NONNULL ((2, 4)));
-_GL_CXXALIAS_RPL (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag)
-                  _GL_ARG_NONNULL ((2, 4)));
-#  endif
-_GL_CXXALIAS_SYS (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag));
-# endif
-_GL_CXXALIASWARN (linkat);
-#elif defined GNULIB_POSIXCHECK
-# undef linkat
-# if HAVE_RAW_DECL_LINKAT
-_GL_WARN_ON_USE (linkat, "linkat is unportable - "
-                 "use gnulib module linkat for portability");
-# endif
-#endif
-
-
-#if 1
-/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
-   Return the new offset if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define lseek rpl_lseek
-#  endif
-_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
-_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
-# else
-_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
-# endif
-_GL_CXXALIASWARN (lseek);
-#elif defined GNULIB_POSIXCHECK
-# undef lseek
-# if HAVE_RAW_DECL_LSEEK
-_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
-                 "systems - use gnulib module lseek for portability");
-# endif
-#endif
-
-
-#if 0
-/* Create a pipe, defaulting to O_BINARY mode.
-   Store the read-end as fd[0] and the write-end as fd[1].
-   Return 0 upon success, or -1 with errno set upon failure.  */
-# if !1
-_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
-_GL_CXXALIASWARN (pipe);
-#elif defined GNULIB_POSIXCHECK
-# undef pipe
-# if HAVE_RAW_DECL_PIPE
-_GL_WARN_ON_USE (pipe, "pipe is unportable - "
-                 "use gnulib module pipe-posix for portability");
-# endif
-#endif
-
-
-#if 1
-/* Create a pipe, applying the given flags when opening the read-end of the
-   pipe and the write-end of the pipe.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   Store the read-end as fd[0] and the write-end as fd[1].
-   Return 0 upon success, or -1 with errno set upon failure.
-   See also the Linux man page at
-   <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define pipe2 rpl_pipe2
-#  endif
-_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
-# else
-_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
-# endif
-_GL_CXXALIASWARN (pipe2);
-#elif defined GNULIB_POSIXCHECK
-# undef pipe2
-# if HAVE_RAW_DECL_PIPE2
-_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
-                 "use gnulib module pipe2 for portability");
-# endif
-#endif
-
-
-#if 0
-/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
-   Return the number of bytes placed into BUF if successful, otherwise
-   set errno and return -1.  0 indicates EOF.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef pread
-#   define pread rpl_pread
-#  endif
-_GL_FUNCDECL_RPL (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset));
-# endif
-_GL_CXXALIASWARN (pread);
-#elif defined GNULIB_POSIXCHECK
-# undef pread
-# if HAVE_RAW_DECL_PREAD
-_GL_WARN_ON_USE (pread, "pread is unportable - "
-                 "use gnulib module pread for portability");
-# endif
-#endif
-
-
-#if 0
-/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
-   Return the number of bytes written if successful, otherwise
-   set errno and return -1.  0 indicates nothing written.  See the
-   POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef pwrite
-#   define pwrite rpl_pwrite
-#  endif
-_GL_FUNCDECL_RPL (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset));
-# endif
-_GL_CXXALIASWARN (pwrite);
-#elif defined GNULIB_POSIXCHECK
-# undef pwrite
-# if HAVE_RAW_DECL_PWRITE
-_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
-                 "use gnulib module pwrite for portability");
-# endif
-#endif
-
-
-#if 0
-/* Read up to COUNT bytes from file descriptor FD into the buffer starting
-   at BUF.  See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef read
-#   define read rpl_read
-#  endif
-_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
-# else
-/* Need to cast, because on mingw, the third parameter is
-                                                          unsigned int count
-   and the return type is 'int'.  */
-_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
-# endif
-_GL_CXXALIASWARN (read);
-#endif
-
-
-#if 1
-/* Read the contents of the symbolic link FILE and place the first BUFSIZE
-   bytes of it into BUF.  Return the number of bytes placed into BUF if
-   successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define readlink rpl_readlink
-#  endif
-_GL_FUNCDECL_RPL (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize)
-                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize));
-# else
-#  if !0
-_GL_FUNCDECL_SYS (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize)
-                  _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize));
-# endif
-_GL_CXXALIASWARN (readlink);
-#elif defined GNULIB_POSIXCHECK
-# undef readlink
-# if HAVE_RAW_DECL_READLINK
-_GL_WARN_ON_USE (readlink, "readlink is unportable - "
-                 "use gnulib module readlink for portability");
-# endif
-#endif
-
-
-#if 0
-# if !1
-_GL_FUNCDECL_SYS (readlinkat, ssize_t,
-                  (int fd, char const *file, char *buf, size_t len)
-                  _GL_ARG_NONNULL ((2, 3)));
-# endif
-_GL_CXXALIAS_SYS (readlinkat, ssize_t,
-                  (int fd, char const *file, char *buf, size_t len));
-_GL_CXXALIASWARN (readlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef readlinkat
-# if HAVE_RAW_DECL_READLINKAT
-_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
-                 "use gnulib module readlinkat for portability");
-# endif
-#endif
-
-
-#if 1
-/* Remove the directory DIR.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define rmdir rpl_rmdir
-#  endif
-_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
-# else
-_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
-# endif
-_GL_CXXALIASWARN (rmdir);
-#elif defined GNULIB_POSIXCHECK
-# undef rmdir
-# if HAVE_RAW_DECL_RMDIR
-_GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
-                 "use gnulib module rmdir for portability");
-# endif
-#endif
-
-
-#if 0
-/* Set the host name of the machine.
-   The host name may or may not be fully qualified.
-
-   Put LEN bytes of NAME into the host name.
-   Return 0 if successful, otherwise, set errno and return -1.
-
-   Platforms with no ability to set the hostname return -1 and set
-   errno = ENOSYS.  */
-# if !1 || !1
-_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-# endif
-/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
-   and FreeBSD 6.4 the second parameter is int.  On Solaris 11
-   2011-10, the first parameter is not const.  */
-_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
-_GL_CXXALIASWARN (sethostname);
-#elif defined GNULIB_POSIXCHECK
-# undef sethostname
-# if HAVE_RAW_DECL_SETHOSTNAME
-_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
-                 "use gnulib module sethostname for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-/* Pause the execution of the current thread for N seconds.
-   Returns the number of seconds left to sleep.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef sleep
-#   define sleep rpl_sleep
-#  endif
-_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
-_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
-# else
-#  if !0
-_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
-#  endif
-_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
-# endif
-_GL_CXXALIASWARN (sleep);
-#elif defined GNULIB_POSIXCHECK
-# undef sleep
-# if HAVE_RAW_DECL_SLEEP
-_GL_WARN_ON_USE (sleep, "sleep is unportable - "
-                 "use gnulib module sleep for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef symlink
-#   define symlink rpl_symlink
-#  endif
-_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
-                                _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
-# else
-#  if !0
-_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
-                                _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
-# endif
-_GL_CXXALIASWARN (symlink);
-#elif defined GNULIB_POSIXCHECK
-# undef symlink
-# if HAVE_RAW_DECL_SYMLINK
-_GL_WARN_ON_USE (symlink, "symlink is not portable - "
-                 "use gnulib module symlink for portability");
-# endif
-#endif
-
-
-#if 0
-# if !1
-_GL_FUNCDECL_SYS (symlinkat, int,
-                  (char const *contents, int fd, char const *file)
-                  _GL_ARG_NONNULL ((1, 3)));
-# endif
-_GL_CXXALIAS_SYS (symlinkat, int,
-                  (char const *contents, int fd, char const *file));
-_GL_CXXALIASWARN (symlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef symlinkat
-# if HAVE_RAW_DECL_SYMLINKAT
-_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
-                 "use gnulib module symlinkat for portability");
-# endif
-#endif
-
-
-#if 0
-/* Store at most BUFLEN characters of the pathname of the terminal FD is
-   open on in BUF.  Return 0 on success, otherwise an error number.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ttyname_r
-#   define ttyname_r rpl_ttyname_r
-#  endif
-_GL_FUNCDECL_RPL (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen));
-# endif
-_GL_CXXALIASWARN (ttyname_r);
-#elif defined GNULIB_POSIXCHECK
-# undef ttyname_r
-# if HAVE_RAW_DECL_TTYNAME_R
-_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
-                 "use gnulib module ttyname_r for portability");
-# endif
-#endif
-
-
-#if 0
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef unlink
-#   define unlink rpl_unlink
-#  endif
-_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (unlink, int, (char const *file));
-# else
-_GL_CXXALIAS_SYS (unlink, int, (char const *file));
-# endif
-_GL_CXXALIASWARN (unlink);
-#elif defined GNULIB_POSIXCHECK
-# undef unlink
-# if HAVE_RAW_DECL_UNLINK
-_GL_WARN_ON_USE (unlink, "unlink is not portable - "
-                 "use gnulib module unlink for portability");
-# endif
-#endif
-
-
-#if 0
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef unlinkat
-#   define unlinkat rpl_unlinkat
-#  endif
-_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
-# endif
-_GL_CXXALIASWARN (unlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef unlinkat
-# if HAVE_RAW_DECL_UNLINKAT
-_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
-                 "use gnulib module openat for portability");
-# endif
-#endif
-
-
-#if 0
-/* Pause the execution of the current thread for N microseconds.
-   Returns 0 on completion, or -1 on range error.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/usleep.html>.  */
-# if 0
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef usleep
-#   define usleep rpl_usleep
-#  endif
-_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
-_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
-# else
-#  if !1
-_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
-#  endif
-_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
-# endif
-_GL_CXXALIASWARN (usleep);
-#elif defined GNULIB_POSIXCHECK
-# undef usleep
-# if HAVE_RAW_DECL_USLEEP
-_GL_WARN_ON_USE (usleep, "usleep is unportable - "
-                 "use gnulib module usleep for portability");
-# endif
-#endif
-
-
-#if IN_M4_GNULIB_TESTS
-/* Write up to COUNT bytes starting at BUF to file descriptor FD.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>.  */
-# if 1
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef write
-#   define write rpl_write
-#  endif
-_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
-                                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
-# else
-/* Need to cast, because on mingw, the third parameter is
-                                                             unsigned int count
-   and the return type is 'int'.  */
-_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
-# endif
-_GL_CXXALIASWARN (write);
-#endif
-
-_GL_INLINE_HEADER_END
-
-#endif /* _GL_M4_UNISTD_H */
-#endif /* _GL_M4_UNISTD_H */
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */ 
+/* Substitute for and wrapper around <unistd.h>. 
+   Copyright (C) 2003-2013 Free Software Foundation, Inc. 
+ 
+   This program is free software; you can redistribute it and/or modify 
+   it under the terms of the GNU General Public License as published by 
+   the Free Software Foundation; either version 3, or (at your option) 
+   any later version. 
+ 
+   This program is distributed in the hope that it will be useful, 
+   but WITHOUT ANY WARRANTY; without even the implied warranty of 
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+   GNU General Public License for more details. 
+ 
+   You should have received a copy of the GNU General Public License 
+   along with this program; if not, see <http://www.gnu.org/licenses/>.  */ 
+ 
+#ifndef _GL_M4_UNISTD_H 
+ 
+#if __GNUC__ >= 3 
+ 
+#endif 
+ 
+ 
+/* The include_next requires a split double-inclusion guard.  */ 
+#if 0 
+# include <unistd.h> 
+#endif 
+ 
+/* Get all possible declarations of gethostname().  */ 
+#if 0 && 0 \ 
+  && !defined _GL_INCLUDING_WINSOCK2_H 
+# define _GL_INCLUDING_WINSOCK2_H 
+# include <winsock2.h> 
+# undef _GL_INCLUDING_WINSOCK2_H 
+#endif 
+ 
+#if !defined _GL_M4_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H 
+#define _GL_M4_UNISTD_H 
+ 
+/* NetBSD 5.0 mis-defines NULL.  Also get size_t.  */ 
+#include <stddef.h> 
+ 
+/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>.  */ 
+/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>.  */ 
+/* But avoid namespace pollution on glibc systems.  */ 
+#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \ 
+     || ((0 || defined GNULIB_POSIXCHECK) \ 
+         && defined __CYGWIN__)) \ 
+    && ! defined __GLIBC__ 
+# include <stdio.h> 
+#endif 
+ 
+/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>.  */ 
+/* But avoid namespace pollution on glibc systems.  */ 
+#if (0 || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \ 
+    && ! defined __GLIBC__ 
+# include <fcntl.h> 
+#endif 
+ 
+/* mingw fails to declare _exit in <unistd.h>.  */ 
+/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in 
+   <unistd.h>.  */ 
+/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>.  */ 
+/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is 
+   included here.  */ 
+/* But avoid namespace pollution on glibc systems.  */ 
+#if !defined __GLIBC__ && !defined __osf__ 
+# define __need_system_stdlib_h 
+# include <stdlib.h> 
+# undef __need_system_stdlib_h 
+#endif 
+ 
+/* Native Windows platforms declare chdir, getcwd, rmdir in 
+   <io.h> and/or <direct.h>, not in <unistd.h>. 
+   They also declare access(), chmod(), close(), dup(), dup2(), isatty(), 
+   lseek(), read(), unlink(), write() in <io.h>.  */ 
+#if ((1 || IN_M4_GNULIB_TESTS || 1 \ 
+      || defined GNULIB_POSIXCHECK) \ 
+     && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) 
+# include <io.h>     /* mingw32, mingw64 */ 
+# include <direct.h> /* mingw64, MSVC 9 */ 
+#elif (1 || IN_M4_GNULIB_TESTS || 1 || 0 \ 
+       || 1 || 0 || 0 || IN_M4_GNULIB_TESTS \ 
+       || defined GNULIB_POSIXCHECK) \ 
+      && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) 
+# include <io.h> 
+#endif 
+ 
+/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>. 
+   NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>.  */ 
+/* But avoid namespace pollution on glibc systems.  */ 
+#if ((0 && (defined _AIX || defined __osf__)) \ 
+     || (0 && defined __TANDEM)) \ 
+    && !defined __GLIBC__ 
+# include <netdb.h> 
+#endif 
+ 
+/* MSVC defines off_t in <sys/types.h>. 
+   May also define off_t to a 64-bit type on native Windows.  */ 
+#if !0 || 1 
+/* Get off_t.  */ 
+# include <sys/types.h> 
+#endif 
+ 
+#if (0 || IN_M4_GNULIB_TESTS \ 
+     || 1 || 0 \ 
+     || 0 || 0 || defined GNULIB_POSIXCHECK) 
+/* Get ssize_t.  */ 
+# include <sys/types.h> 
+#endif 
+ 
+/* Get getopt(), optarg, optind, opterr, optopt. 
+   But avoid namespace pollution on glibc systems.  */ 
+#if 01 && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT 
+# define __need_getopt 
+# include <getopt.h> 
+#endif 
+ 
+#ifndef _GL_INLINE_HEADER_BEGIN 
+# error "Please include config.h first." 
+#endif 
+_GL_INLINE_HEADER_BEGIN 
+#ifndef _GL_UNISTD_INLINE 
+# define _GL_UNISTD_INLINE _GL_INLINE 
+#endif 
+ 
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */ 
+#ifndef _GL_CXXDEFS_H 
+#define _GL_CXXDEFS_H 
+ 
+ 
+/* _GL_EXTERN_C declaration; 
+   performs the declaration with C linkage.  */ 
+#if defined __cplusplus 
+# define _GL_EXTERN_C extern "C" 
+#else 
+# define _GL_EXTERN_C extern 
+#endif 
+ 
+/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); 
+   declares a replacement function, named rpl_func, with the given prototype, 
+   consisting of return type, parameters, and attributes. 
+   Example: 
+     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) 
+                                  _GL_ARG_NONNULL ((1))); 
+ */ 
+#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ 
+  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) 
+#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ 
+  _GL_EXTERN_C rettype rpl_func parameters_and_attributes 
+ 
+/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); 
+   declares the system function, named func, with the given prototype, 
+   consisting of return type, parameters, and attributes. 
+   Example: 
+     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) 
+                                  _GL_ARG_NONNULL ((1))); 
+ */ 
+#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ 
+  _GL_EXTERN_C rettype func parameters_and_attributes 
+ 
+/* _GL_CXXALIAS_RPL (func, rettype, parameters); 
+   declares a C++ alias called GNULIB_NAMESPACE::func 
+   that redirects to rpl_func, if GNULIB_NAMESPACE is defined. 
+   Example: 
+     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); 
+ */ 
+#define _GL_CXXALIAS_RPL(func,rettype,parameters) \ 
+  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 
+    namespace GNULIB_NAMESPACE                                \ 
+    {                                                         \ 
+      rettype (*const func) parameters = ::rpl_func;          \ 
+    }                                                         \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#else 
+# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters); 
+   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters); 
+   except that the C function rpl_func may have a slightly different 
+   declaration.  A cast is used to silence the "invalid conversion" error 
+   that would otherwise occur.  */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 
+    namespace GNULIB_NAMESPACE                                     \ 
+    {                                                              \ 
+      rettype (*const func) parameters =                           \ 
+        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \ 
+    }                                                              \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#else 
+# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIAS_SYS (func, rettype, parameters); 
+   declares a C++ alias called GNULIB_NAMESPACE::func 
+   that redirects to the system provided function func, if GNULIB_NAMESPACE 
+   is defined. 
+   Example: 
+     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); 
+ */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+  /* If we were to write 
+       rettype (*const func) parameters = ::func; 
+     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls 
+     better (remove an indirection through a 'static' pointer variable), 
+     but then the _GL_CXXALIASWARN macro below would cause a warning not only 
+     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */ 
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 
+    namespace GNULIB_NAMESPACE                     \ 
+    {                                              \ 
+      static rettype (*func) parameters = ::func;  \ 
+    }                                              \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#else 
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters); 
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters); 
+   except that the C function func may have a slightly different declaration. 
+   A cast is used to silence the "invalid conversion" error that would 
+   otherwise occur.  */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 
+    namespace GNULIB_NAMESPACE                          \ 
+    {                                                   \ 
+      static rettype (*func) parameters =               \ 
+        reinterpret_cast<rettype(*)parameters>(::func); \ 
+    }                                                   \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#else 
+# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2); 
+   is like  _GL_CXXALIAS_SYS (func, rettype, parameters); 
+   except that the C function is picked among a set of overloaded functions, 
+   namely the one with rettype2 and parameters2.  Two consecutive casts 
+   are used to silence the "cannot find a match" and "invalid conversion" 
+   errors that would otherwise occur.  */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+  /* The outer cast must be a reinterpret_cast. 
+     The inner cast: When the function is defined as a set of overloaded 
+     functions, it works as a static_cast<>, choosing the designated variant. 
+     When the function is defined as a single variant, it works as a 
+     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */ 
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 
+    namespace GNULIB_NAMESPACE                                                \ 
+    {                                                                         \ 
+      static rettype (*func) parameters =                                     \ 
+        reinterpret_cast<rettype(*)parameters>(                               \ 
+          (rettype2(*)parameters2)(::func));                                  \ 
+    }                                                                         \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#else 
+# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIASWARN (func); 
+   causes a warning to be emitted when ::func is used but not when 
+   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded 
+   variants.  */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+# define _GL_CXXALIASWARN(func) \ 
+   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE) 
+# define _GL_CXXALIASWARN_1(func,namespace) \ 
+   _GL_CXXALIASWARN_2 (func, namespace) 
+/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 
+   we enable the warning only when not optimizing.  */ 
+# if !__OPTIMIZE__ 
+#  define _GL_CXXALIASWARN_2(func,namespace) \ 
+    _GL_WARN_ON_USE (func, \ 
+                     "The symbol ::" #func " refers to the system function. " \ 
+                     "Use " #namespace "::" #func " instead.") 
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 
+#  define _GL_CXXALIASWARN_2(func,namespace) \ 
+     extern __typeof__ (func) func 
+# else 
+#  define _GL_CXXALIASWARN_2(func,namespace) \ 
+     _GL_EXTERN_C int _gl_cxxalias_dummy 
+# endif 
+#else 
+# define _GL_CXXALIASWARN(func) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes); 
+   causes a warning to be emitted when the given overloaded variant of ::func 
+   is used but not when GNULIB_NAMESPACE::func is used.  */ 
+#if defined __cplusplus && defined GNULIB_NAMESPACE 
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 
+   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \ 
+                        GNULIB_NAMESPACE) 
+# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \ 
+   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace) 
+/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>, 
+   we enable the warning only when not optimizing.  */ 
+# if !__OPTIMIZE__ 
+#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 
+    _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ 
+                         "The symbol ::" #func " refers to the system function. " \ 
+                         "Use " #namespace "::" #func " instead.") 
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 
+#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 
+     extern __typeof__ (func) func 
+# else 
+#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ 
+     _GL_EXTERN_C int _gl_cxxalias_dummy 
+# endif 
+#else 
+# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \ 
+    _GL_EXTERN_C int _gl_cxxalias_dummy 
+#endif 
+ 
+#endif /* _GL_CXXDEFS_H */ 
+ 
+/* The definition of _GL_ARG_NONNULL is copied here.  */ 
+/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools 
+   that the values passed as arguments n, ..., m must be non-NULL pointers. 
+   n = 1 stands for the first argument, n = 2 for the second argument etc.  */ 
+#ifndef _GL_ARG_NONNULL 
+# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3 
+#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params)) 
+# else 
+#  define _GL_ARG_NONNULL(params) 
+# endif 
+#endif 
+ 
+/* The definition of _GL_WARN_ON_USE is copied here.  */ 
+#ifndef _GL_WARN_ON_USE 
+ 
+# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 
+/* A compiler attribute is available in gcc versions 4.3.0 and later.  */ 
+#  define _GL_WARN_ON_USE(function, message) \ 
+extern __typeof__ (function) function __attribute__ ((__warning__ (message))) 
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 
+/* Verify the existence of the function.  */ 
+#  define _GL_WARN_ON_USE(function, message) \ 
+extern __typeof__ (function) function 
+# else /* Unsupported.  */ 
+#  define _GL_WARN_ON_USE(function, message) \ 
+_GL_WARN_EXTERN_C int _gl_warn_on_use 
+# endif 
+#endif 
+ 
+/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string") 
+   is like _GL_WARN_ON_USE (function, "string"), except that the function is 
+   declared with the given prototype, consisting of return type, parameters, 
+   and attributes. 
+   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does 
+   not work in this case.  */ 
+#ifndef _GL_WARN_ON_USE_CXX 
+# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) 
+#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 
+extern rettype function parameters_and_attributes \ 
+     __attribute__ ((__warning__ (msg))) 
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING 
+/* Verify the existence of the function.  */ 
+#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 
+extern rettype function parameters_and_attributes 
+# else /* Unsupported.  */ 
+#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ 
+_GL_WARN_EXTERN_C int _gl_warn_on_use 
+# endif 
+#endif 
+ 
+/* _GL_WARN_EXTERN_C declaration; 
+   performs the declaration with C linkage.  */ 
+#ifndef _GL_WARN_EXTERN_C 
+# if defined __cplusplus 
+#  define _GL_WARN_EXTERN_C extern "C" 
+# else 
+#  define _GL_WARN_EXTERN_C extern 
+# endif 
+#endif 
+ 
+ 
+/* Hide some function declarations from <winsock2.h>.  */ 
+ 
+#if 0 && 0 
+# if !defined _GL_M4_SYS_SOCKET_H 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef socket 
+#   define socket              socket_used_without_including_sys_socket_h 
+#   undef connect 
+#   define connect             connect_used_without_including_sys_socket_h 
+#   undef accept 
+#   define accept              accept_used_without_including_sys_socket_h 
+#   undef bind 
+#   define bind                bind_used_without_including_sys_socket_h 
+#   undef getpeername 
+#   define getpeername         getpeername_used_without_including_sys_socket_h 
+#   undef getsockname 
+#   define getsockname         getsockname_used_without_including_sys_socket_h 
+#   undef getsockopt 
+#   define getsockopt          getsockopt_used_without_including_sys_socket_h 
+#   undef listen 
+#   define listen              listen_used_without_including_sys_socket_h 
+#   undef recv 
+#   define recv                recv_used_without_including_sys_socket_h 
+#   undef send 
+#   define send                send_used_without_including_sys_socket_h 
+#   undef recvfrom 
+#   define recvfrom            recvfrom_used_without_including_sys_socket_h 
+#   undef sendto 
+#   define sendto              sendto_used_without_including_sys_socket_h 
+#   undef setsockopt 
+#   define setsockopt          setsockopt_used_without_including_sys_socket_h 
+#   undef shutdown 
+#   define shutdown            shutdown_used_without_including_sys_socket_h 
+#  else 
+    _GL_WARN_ON_USE (socket, 
+                     "socket() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (connect, 
+                     "connect() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (accept, 
+                     "accept() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (bind, 
+                     "bind() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (getpeername, 
+                     "getpeername() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (getsockname, 
+                     "getsockname() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (getsockopt, 
+                     "getsockopt() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (listen, 
+                     "listen() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (recv, 
+                     "recv() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (send, 
+                     "send() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (recvfrom, 
+                     "recvfrom() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (sendto, 
+                     "sendto() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (setsockopt, 
+                     "setsockopt() used without including <sys/socket.h>"); 
+    _GL_WARN_ON_USE (shutdown, 
+                     "shutdown() used without including <sys/socket.h>"); 
+#  endif 
+# endif 
+# if !defined _GL_M4_SYS_SELECT_H 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef select 
+#   define select              select_used_without_including_sys_select_h 
+#  else 
+    _GL_WARN_ON_USE (select, 
+                     "select() used without including <sys/select.h>"); 
+#  endif 
+# endif 
+#endif 
+ 
+ 
+/* OS/2 EMX lacks these macros.  */ 
+#ifndef STDIN_FILENO 
+# define STDIN_FILENO 0 
+#endif 
+#ifndef STDOUT_FILENO 
+# define STDOUT_FILENO 1 
+#endif 
+#ifndef STDERR_FILENO 
+# define STDERR_FILENO 2 
+#endif 
+ 
+/* Ensure *_OK macros exist.  */ 
+#ifndef F_OK 
+# define F_OK 0 
+# define X_OK 1 
+# define W_OK 2 
+# define R_OK 4 
+#endif 
+ 
+ 
+/* Declare overridden functions.  */ 
+ 
+ 
+#if defined GNULIB_POSIXCHECK 
+/* The access() function is a security risk.  */ 
+_GL_WARN_ON_USE (access, "the access function is a security risk - " 
+                 "use the gnulib module faccessat instead"); 
+#endif 
+ 
+ 
+#if 1 
+_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIASWARN (chdir); 
+#elif defined GNULIB_POSIXCHECK 
+# undef chdir 
+# if HAVE_RAW_DECL_CHDIR 
+_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - " 
+                 "use gnulib module chdir for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE 
+   to GID (if GID is not -1).  Follow symbolic links. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef chown 
+#   define chown rpl_chown 
+#  endif 
+_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid) 
+                              _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid) 
+                              _GL_ARG_NONNULL ((1))); 
+#  endif 
+_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)); 
+# endif 
+_GL_CXXALIASWARN (chown); 
+#elif defined GNULIB_POSIXCHECK 
+# undef chown 
+# if HAVE_RAW_DECL_CHOWN 
+_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and " 
+                 "doesn't treat a uid or gid of -1 on some systems - " 
+                 "use gnulib module chown for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+# if 1 
+/* Automatically included by modules that need a replacement for close.  */ 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef close 
+#   define close rpl_close 
+#  endif 
+_GL_FUNCDECL_RPL (close, int, (int fd)); 
+_GL_CXXALIAS_RPL (close, int, (int fd)); 
+# else 
+_GL_CXXALIAS_SYS (close, int, (int fd)); 
+# endif 
+_GL_CXXALIASWARN (close); 
+#elif 0 
+# undef close 
+# define close close_used_without_requesting_gnulib_module_close 
+#elif defined GNULIB_POSIXCHECK 
+# undef close 
+/* Assume close is always declared.  */ 
+_GL_WARN_ON_USE (close, "close does not portably work on sockets - " 
+                 "use gnulib module close for portability"); 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define dup rpl_dup 
+#  endif 
+_GL_FUNCDECL_RPL (dup, int, (int oldfd)); 
+_GL_CXXALIAS_RPL (dup, int, (int oldfd)); 
+# else 
+_GL_CXXALIAS_SYS (dup, int, (int oldfd)); 
+# endif 
+_GL_CXXALIASWARN (dup); 
+#elif defined GNULIB_POSIXCHECK 
+# undef dup 
+# if HAVE_RAW_DECL_DUP 
+_GL_WARN_ON_USE (dup, "dup is unportable - " 
+                 "use gnulib module dup for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+/* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if 
+   NEWFD = OLDFD, otherwise close NEWFD first if it is open. 
+   Return newfd if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define dup2 rpl_dup2 
+#  endif 
+_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd)); 
+_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd)); 
+#  endif 
+_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd)); 
+# endif 
+_GL_CXXALIASWARN (dup2); 
+#elif defined GNULIB_POSIXCHECK 
+# undef dup2 
+# if HAVE_RAW_DECL_DUP2 
+_GL_WARN_ON_USE (dup2, "dup2 is unportable - " 
+                 "use gnulib module dup2 for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the 
+   specified flags. 
+   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) 
+   and O_TEXT, O_BINARY (defined in "binary-io.h"). 
+   Close NEWFD first if it is open. 
+   Return newfd if successful, otherwise -1 and errno set. 
+   See the Linux man page at 
+   <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define dup3 rpl_dup3 
+#  endif 
+_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags)); 
+_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags)); 
+# else 
+_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags)); 
+_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags)); 
+# endif 
+_GL_CXXALIASWARN (dup3); 
+#elif defined GNULIB_POSIXCHECK 
+# undef dup3 
+# if HAVE_RAW_DECL_DUP3 
+_GL_WARN_ON_USE (dup3, "dup3 is unportable - " 
+                 "use gnulib module dup3 for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+# if !1 
+/* Set of environment variables and values.  An array of strings of the form 
+   "VARIABLE=VALUE", terminated with a NULL.  */ 
+#  if defined __APPLE__ && defined __MACH__ 
+#   include <crt_externs.h> 
+#   define environ (*_NSGetEnviron ()) 
+#  else 
+#   ifdef __cplusplus 
+extern "C" { 
+#   endif 
+extern char **environ; 
+#   ifdef __cplusplus 
+} 
+#   endif 
+#  endif 
+# endif 
+#elif defined GNULIB_POSIXCHECK 
+# if HAVE_RAW_DECL_ENVIRON 
+_GL_UNISTD_INLINE char *** 
+rpl_environ (void) 
+{ 
+  return &environ; 
+} 
+_GL_WARN_ON_USE (rpl_environ, "environ is unportable - " 
+                 "use gnulib module environ for portability"); 
+#  undef environ 
+#  define environ (*rpl_environ ()) 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Like access(), except that it uses the effective user id and group id of 
+   the current process.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode) 
+                                   _GL_ARG_NONNULL ((1))); 
+# endif 
+_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode)); 
+_GL_CXXALIASWARN (euidaccess); 
+# if defined GNULIB_POSIXCHECK 
+/* Like access(), this function is a security risk.  */ 
+_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - " 
+                 "use the gnulib module faccessat instead"); 
+# endif 
+#elif defined GNULIB_POSIXCHECK 
+# undef euidaccess 
+# if HAVE_RAW_DECL_EUIDACCESS 
+_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " 
+                 "use gnulib module euidaccess for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if !1 
+_GL_FUNCDECL_SYS (faccessat, int, 
+                  (int fd, char const *file, int mode, int flag) 
+                  _GL_ARG_NONNULL ((2))); 
+# endif 
+_GL_CXXALIAS_SYS (faccessat, int, 
+                  (int fd, char const *file, int mode, int flag)); 
+_GL_CXXALIASWARN (faccessat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef faccessat 
+# if HAVE_RAW_DECL_FACCESSAT 
+_GL_WARN_ON_USE (faccessat, "faccessat is not portable - " 
+                 "use gnulib module faccessat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Change the process' current working directory to the directory on which 
+   the given file descriptor is open. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>.  */ 
+# if ! 1 
+_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); 
+ 
+/* Gnulib internal hooks needed to maintain the fchdir metadata.  */ 
+_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename) 
+     _GL_ARG_NONNULL ((2)); 
+_GL_EXTERN_C void _gl_unregister_fd (int fd); 
+_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd); 
+_GL_EXTERN_C const char *_gl_directory_name (int fd); 
+ 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/)); 
+#  endif 
+# endif 
+_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/)); 
+_GL_CXXALIASWARN (fchdir); 
+#elif defined GNULIB_POSIXCHECK 
+# undef fchdir 
+# if HAVE_RAW_DECL_FCHDIR 
+_GL_WARN_ON_USE (fchdir, "fchdir is unportable - " 
+                 "use gnulib module fchdir for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef fchownat 
+#   define fchownat rpl_fchownat 
+#  endif 
+_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file, 
+                                  uid_t owner, gid_t group, int flag) 
+                                 _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file, 
+                                  uid_t owner, gid_t group, int flag)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file, 
+                                  uid_t owner, gid_t group, int flag) 
+                                 _GL_ARG_NONNULL ((2))); 
+#  endif 
+_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file, 
+                                  uid_t owner, gid_t group, int flag)); 
+# endif 
+_GL_CXXALIASWARN (fchownat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef fchownat 
+# if HAVE_RAW_DECL_FCHOWNAT 
+_GL_WARN_ON_USE (fchownat, "fchownat is not portable - " 
+                 "use gnulib module openat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Synchronize changes to a file. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>.  */ 
+# if !1 || !1 
+_GL_FUNCDECL_SYS (fdatasync, int, (int fd)); 
+# endif 
+_GL_CXXALIAS_SYS (fdatasync, int, (int fd)); 
+_GL_CXXALIASWARN (fdatasync); 
+#elif defined GNULIB_POSIXCHECK 
+# undef fdatasync 
+# if HAVE_RAW_DECL_FDATASYNC 
+_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - " 
+                 "use gnulib module fdatasync for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Synchronize changes, including metadata, to a file. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (fsync, int, (int fd)); 
+# endif 
+_GL_CXXALIAS_SYS (fsync, int, (int fd)); 
+_GL_CXXALIASWARN (fsync); 
+#elif defined GNULIB_POSIXCHECK 
+# undef fsync 
+# if HAVE_RAW_DECL_FSYNC 
+_GL_WARN_ON_USE (fsync, "fsync is unportable - " 
+                 "use gnulib module fsync for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Change the size of the file to which FD is opened to become equal to LENGTH. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef ftruncate 
+#   define ftruncate rpl_ftruncate 
+#  endif 
+_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length)); 
+_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length)); 
+#  endif 
+_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length)); 
+# endif 
+_GL_CXXALIASWARN (ftruncate); 
+#elif defined GNULIB_POSIXCHECK 
+# undef ftruncate 
+# if HAVE_RAW_DECL_FTRUNCATE 
+_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - " 
+                 "use gnulib module ftruncate for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+/* Get the name of the current working directory, and put it in SIZE bytes 
+   of BUF. 
+   Return BUF if successful, or NULL if the directory couldn't be determined 
+   or SIZE was too small. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>. 
+   Additionally, the gnulib module 'getcwd' guarantees the following GNU 
+   extension: If BUF is NULL, an array is allocated with 'malloc'; the array 
+   is SIZE bytes long, unless SIZE == 0, in which case it is as big as 
+   necessary.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define getcwd rpl_getcwd 
+#  endif 
+_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size)); 
+_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size)); 
+# else 
+/* Need to cast, because on mingw, the second parameter is 
+                                                   int size.  */ 
+_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size)); 
+# endif 
+_GL_CXXALIASWARN (getcwd); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getcwd 
+# if HAVE_RAW_DECL_GETCWD 
+_GL_WARN_ON_USE (getcwd, "getcwd is unportable - " 
+                 "use gnulib module getcwd for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Return the NIS domain name of the machine. 
+   WARNING! The NIS domain name is unrelated to the fully qualified host name 
+            of the machine.  It is also unrelated to email addresses. 
+   WARNING! The NIS domain name is usually the empty string or "(none)" when 
+            not using NIS. 
+ 
+   Put up to LEN bytes of the NIS domain name into NAME. 
+   Null terminate it if the name is shorter than LEN. 
+   If the NIS domain name is longer than LEN, set errno = EINVAL and return -1. 
+   Return 0 if successful, otherwise set errno and return -1.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef getdomainname 
+#   define getdomainname rpl_getdomainname 
+#  endif 
+_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len) 
+                                      _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len) 
+                                      _GL_ARG_NONNULL ((1))); 
+#  endif 
+_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len)); 
+# endif 
+_GL_CXXALIASWARN (getdomainname); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getdomainname 
+# if HAVE_RAW_DECL_GETDOMAINNAME 
+_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - " 
+                 "use gnulib module getdomainname for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+/* Return the maximum number of file descriptors in the current process. 
+   In POSIX, this is same as sysconf (_SC_OPEN_MAX).  */ 
+# if !0 
+_GL_FUNCDECL_SYS (getdtablesize, int, (void)); 
+# endif 
+_GL_CXXALIAS_SYS (getdtablesize, int, (void)); 
+_GL_CXXALIASWARN (getdtablesize); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getdtablesize 
+# if HAVE_RAW_DECL_GETDTABLESIZE 
+_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - " 
+                 "use gnulib module getdtablesize for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Return the supplemental groups that the current process belongs to. 
+   It is unspecified whether the effective group id is in the list. 
+   If N is 0, return the group count; otherwise, N describes how many 
+   entries are available in GROUPS.  Return -1 and set errno if N is 
+   not 0 and not large enough.  Fails with ENOSYS on some systems.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef getgroups 
+#   define getgroups rpl_getgroups 
+#  endif 
+_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups)); 
+_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups)); 
+#  endif 
+_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups)); 
+# endif 
+_GL_CXXALIASWARN (getgroups); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getgroups 
+# if HAVE_RAW_DECL_GETGROUPS 
+_GL_WARN_ON_USE (getgroups, "getgroups is unportable - " 
+                 "use gnulib module getgroups for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Return the standard host name of the machine. 
+   WARNING! The host name may or may not be fully qualified. 
+ 
+   Put up to LEN bytes of the host name into NAME. 
+   Null terminate it if the name is shorter than LEN. 
+   If the host name is longer than LEN, set errno = EINVAL and return -1. 
+   Return 0 if successful, otherwise set errno and return -1.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef gethostname 
+#   define gethostname rpl_gethostname 
+#  endif 
+_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len) 
+                                    _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len) 
+                                    _GL_ARG_NONNULL ((1))); 
+#  endif 
+/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second 
+   parameter is 
+                                                      int len.  */ 
+_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len)); 
+# endif 
+_GL_CXXALIASWARN (gethostname); 
+#elif 0 
+# undef gethostname 
+# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname 
+#elif defined GNULIB_POSIXCHECK 
+# undef gethostname 
+# if HAVE_RAW_DECL_GETHOSTNAME 
+_GL_WARN_ON_USE (gethostname, "gethostname is unportable - " 
+                 "use gnulib module gethostname for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Returns the user's login name, or NULL if it cannot be found.  Upon error, 
+   returns NULL with errno set. 
+ 
+   See <http://www.opengroup.org/susv3xsh/getlogin.html>. 
+ 
+   Most programs don't need to use this function, because the information is 
+   available through environment variables: 
+     ${LOGNAME-$USER}        on Unix platforms, 
+     $USERNAME               on native Windows platforms. 
+ */ 
+# if !1 
+_GL_FUNCDECL_SYS (getlogin, char *, (void)); 
+# endif 
+_GL_CXXALIAS_SYS (getlogin, char *, (void)); 
+_GL_CXXALIASWARN (getlogin); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getlogin 
+# if HAVE_RAW_DECL_GETLOGIN 
+_GL_WARN_ON_USE (getlogin, "getlogin is unportable - " 
+                 "use gnulib module getlogin for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Copies the user's login name to NAME. 
+   The array pointed to by NAME has room for SIZE bytes. 
+ 
+   Returns 0 if successful.  Upon error, an error number is returned, or -1 in 
+   the case that the login name cannot be found but no specific error is 
+   provided (this case is hopefully rare but is left open by the POSIX spec). 
+ 
+   See <http://www.opengroup.org/susv3xsh/getlogin.html>. 
+ 
+   Most programs don't need to use this function, because the information is 
+   available through environment variables: 
+     ${LOGNAME-$USER}        on Unix platforms, 
+     $USERNAME               on native Windows platforms. 
+ */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define getlogin_r rpl_getlogin_r 
+#  endif 
+_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size) 
+                                   _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size) 
+                                   _GL_ARG_NONNULL ((1))); 
+#  endif 
+/* Need to cast, because on Solaris 10 systems, the second argument is 
+                                                     int size.  */ 
+_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size)); 
+# endif 
+_GL_CXXALIASWARN (getlogin_r); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getlogin_r 
+# if HAVE_RAW_DECL_GETLOGIN_R 
+_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - " 
+                 "use gnulib module getlogin_r for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define getpagesize rpl_getpagesize 
+#  endif 
+_GL_FUNCDECL_RPL (getpagesize, int, (void)); 
+_GL_CXXALIAS_RPL (getpagesize, int, (void)); 
+# else 
+#  if !0 
+#   if !defined getpagesize 
+/* This is for POSIX systems.  */ 
+#    if !defined _gl_getpagesize && defined _SC_PAGESIZE 
+#     if ! (defined __VMS && __VMS_VER < 70000000) 
+#      define _gl_getpagesize() sysconf (_SC_PAGESIZE) 
+#     endif 
+#    endif 
+/* This is for older VMS.  */ 
+#    if !defined _gl_getpagesize && defined __VMS 
+#     ifdef __ALPHA 
+#      define _gl_getpagesize() 8192 
+#     else 
+#      define _gl_getpagesize() 512 
+#     endif 
+#    endif 
+/* This is for BeOS.  */ 
+#    if !defined _gl_getpagesize && 0 
+#     include <OS.h> 
+#     if defined B_PAGE_SIZE 
+#      define _gl_getpagesize() B_PAGE_SIZE 
+#     endif 
+#    endif 
+/* This is for AmigaOS4.0.  */ 
+#    if !defined _gl_getpagesize && defined __amigaos4__ 
+#     define _gl_getpagesize() 2048 
+#    endif 
+/* This is for older Unix systems.  */ 
+#    if !defined _gl_getpagesize && 0 
+#     include <sys/param.h> 
+#     ifdef EXEC_PAGESIZE 
+#      define _gl_getpagesize() EXEC_PAGESIZE 
+#     else 
+#      ifdef NBPG 
+#       ifndef CLSIZE 
+#        define CLSIZE 1 
+#       endif 
+#       define _gl_getpagesize() (NBPG * CLSIZE) 
+#      else 
+#       ifdef NBPC 
+#        define _gl_getpagesize() NBPC 
+#       endif 
+#      endif 
+#     endif 
+#    endif 
+#    if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#     define getpagesize() _gl_getpagesize () 
+#    else 
+#     if !GNULIB_defined_getpagesize_function 
+_GL_UNISTD_INLINE int 
+getpagesize () 
+{ 
+  return _gl_getpagesize (); 
+} 
+#      define GNULIB_defined_getpagesize_function 1 
+#     endif 
+#    endif 
+#   endif 
+#  endif 
+/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t.  */ 
+_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void)); 
+# endif 
+# if 0 
+_GL_CXXALIASWARN (getpagesize); 
+# endif 
+#elif defined GNULIB_POSIXCHECK 
+# undef getpagesize 
+# if HAVE_RAW_DECL_GETPAGESIZE 
+_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - " 
+                 "use gnulib module getpagesize for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Return the next valid login shell on the system, or NULL when the end of 
+   the list has been reached.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (getusershell, char *, (void)); 
+# endif 
+_GL_CXXALIAS_SYS (getusershell, char *, (void)); 
+_GL_CXXALIASWARN (getusershell); 
+#elif defined GNULIB_POSIXCHECK 
+# undef getusershell 
+# if HAVE_RAW_DECL_GETUSERSHELL 
+_GL_WARN_ON_USE (getusershell, "getusershell is unportable - " 
+                 "use gnulib module getusershell for portability"); 
+# endif 
+#endif 
+ 
+#if 0 
+/* Rewind to pointer that is advanced at each getusershell() call.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (setusershell, void, (void)); 
+# endif 
+_GL_CXXALIAS_SYS (setusershell, void, (void)); 
+_GL_CXXALIASWARN (setusershell); 
+#elif defined GNULIB_POSIXCHECK 
+# undef setusershell 
+# if HAVE_RAW_DECL_SETUSERSHELL 
+_GL_WARN_ON_USE (setusershell, "setusershell is unportable - " 
+                 "use gnulib module getusershell for portability"); 
+# endif 
+#endif 
+ 
+#if 0 
+/* Free the pointer that is advanced at each getusershell() call and 
+   associated resources.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (endusershell, void, (void)); 
+# endif 
+_GL_CXXALIAS_SYS (endusershell, void, (void)); 
+_GL_CXXALIASWARN (endusershell); 
+#elif defined GNULIB_POSIXCHECK 
+# undef endusershell 
+# if HAVE_RAW_DECL_ENDUSERSHELL 
+_GL_WARN_ON_USE (endusershell, "endusershell is unportable - " 
+                 "use gnulib module getusershell for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Determine whether group id is in calling user's group list.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (group_member, int, (gid_t gid)); 
+# endif 
+_GL_CXXALIAS_SYS (group_member, int, (gid_t gid)); 
+_GL_CXXALIASWARN (group_member); 
+#elif defined GNULIB_POSIXCHECK 
+# undef group_member 
+# if HAVE_RAW_DECL_GROUP_MEMBER 
+_GL_WARN_ON_USE (group_member, "group_member is unportable - " 
+                 "use gnulib module group-member for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef isatty 
+#   define isatty rpl_isatty 
+#  endif 
+_GL_FUNCDECL_RPL (isatty, int, (int fd)); 
+_GL_CXXALIAS_RPL (isatty, int, (int fd)); 
+# else 
+_GL_CXXALIAS_SYS (isatty, int, (int fd)); 
+# endif 
+_GL_CXXALIASWARN (isatty); 
+#elif defined GNULIB_POSIXCHECK 
+# undef isatty 
+# if HAVE_RAW_DECL_ISATTY 
+_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - " 
+                 "use gnulib module isatty for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE 
+   to GID (if GID is not -1).  Do not follow symbolic links. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef lchown 
+#   define lchown rpl_lchown 
+#  endif 
+_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group) 
+                               _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group) 
+                               _GL_ARG_NONNULL ((1))); 
+#  endif 
+_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)); 
+# endif 
+_GL_CXXALIASWARN (lchown); 
+#elif defined GNULIB_POSIXCHECK 
+# undef lchown 
+# if HAVE_RAW_DECL_LCHOWN 
+_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - " 
+                 "use gnulib module lchown for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+/* Create a new hard link for an existing file. 
+   Return 0 if successful, otherwise -1 and errno set. 
+   See POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define link rpl_link 
+#  endif 
+_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2) 
+                             _GL_ARG_NONNULL ((1, 2))); 
+_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2)); 
+# else 
+#  if !0 
+_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2) 
+                             _GL_ARG_NONNULL ((1, 2))); 
+#  endif 
+_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2)); 
+# endif 
+_GL_CXXALIASWARN (link); 
+#elif defined GNULIB_POSIXCHECK 
+# undef link 
+# if HAVE_RAW_DECL_LINK 
+_GL_WARN_ON_USE (link, "link is unportable - " 
+                 "use gnulib module link for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Create a new hard link for an existing file, relative to two 
+   directories.  FLAG controls whether symlinks are followed. 
+   Return 0 if successful, otherwise -1 and errno set.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef linkat 
+#   define linkat rpl_linkat 
+#  endif 
+_GL_FUNCDECL_RPL (linkat, int, 
+                  (int fd1, const char *path1, int fd2, const char *path2, 
+                   int flag) 
+                  _GL_ARG_NONNULL ((2, 4))); 
+_GL_CXXALIAS_RPL (linkat, int, 
+                  (int fd1, const char *path1, int fd2, const char *path2, 
+                   int flag)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (linkat, int, 
+                  (int fd1, const char *path1, int fd2, const char *path2, 
+                   int flag) 
+                  _GL_ARG_NONNULL ((2, 4))); 
+#  endif 
+_GL_CXXALIAS_SYS (linkat, int, 
+                  (int fd1, const char *path1, int fd2, const char *path2, 
+                   int flag)); 
+# endif 
+_GL_CXXALIASWARN (linkat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef linkat 
+# if HAVE_RAW_DECL_LINKAT 
+_GL_WARN_ON_USE (linkat, "linkat is unportable - " 
+                 "use gnulib module linkat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. 
+   Return the new offset if successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define lseek rpl_lseek 
+#  endif 
+_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence)); 
+_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence)); 
+# else 
+_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence)); 
+# endif 
+_GL_CXXALIASWARN (lseek); 
+#elif defined GNULIB_POSIXCHECK 
+# undef lseek 
+# if HAVE_RAW_DECL_LSEEK 
+_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some " 
+                 "systems - use gnulib module lseek for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Create a pipe, defaulting to O_BINARY mode. 
+   Store the read-end as fd[0] and the write-end as fd[1]. 
+   Return 0 upon success, or -1 with errno set upon failure.  */ 
+# if !1 
+_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1))); 
+# endif 
+_GL_CXXALIAS_SYS (pipe, int, (int fd[2])); 
+_GL_CXXALIASWARN (pipe); 
+#elif defined GNULIB_POSIXCHECK 
+# undef pipe 
+# if HAVE_RAW_DECL_PIPE 
+_GL_WARN_ON_USE (pipe, "pipe is unportable - " 
+                 "use gnulib module pipe-posix for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+/* Create a pipe, applying the given flags when opening the read-end of the 
+   pipe and the write-end of the pipe. 
+   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>) 
+   and O_TEXT, O_BINARY (defined in "binary-io.h"). 
+   Store the read-end as fd[0] and the write-end as fd[1]. 
+   Return 0 upon success, or -1 with errno set upon failure. 
+   See also the Linux man page at 
+   <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define pipe2 rpl_pipe2 
+#  endif 
+_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags)); 
+# else 
+_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags)); 
+# endif 
+_GL_CXXALIASWARN (pipe2); 
+#elif defined GNULIB_POSIXCHECK 
+# undef pipe2 
+# if HAVE_RAW_DECL_PIPE2 
+_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - " 
+                 "use gnulib module pipe2 for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET. 
+   Return the number of bytes placed into BUF if successful, otherwise 
+   set errno and return -1.  0 indicates EOF. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef pread 
+#   define pread rpl_pread 
+#  endif 
+_GL_FUNCDECL_RPL (pread, ssize_t, 
+                  (int fd, void *buf, size_t bufsize, off_t offset) 
+                  _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (pread, ssize_t, 
+                  (int fd, void *buf, size_t bufsize, off_t offset)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (pread, ssize_t, 
+                  (int fd, void *buf, size_t bufsize, off_t offset) 
+                  _GL_ARG_NONNULL ((2))); 
+#  endif 
+_GL_CXXALIAS_SYS (pread, ssize_t, 
+                  (int fd, void *buf, size_t bufsize, off_t offset)); 
+# endif 
+_GL_CXXALIASWARN (pread); 
+#elif defined GNULIB_POSIXCHECK 
+# undef pread 
+# if HAVE_RAW_DECL_PREAD 
+_GL_WARN_ON_USE (pread, "pread is unportable - " 
+                 "use gnulib module pread for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET. 
+   Return the number of bytes written if successful, otherwise 
+   set errno and return -1.  0 indicates nothing written.  See the 
+   POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef pwrite 
+#   define pwrite rpl_pwrite 
+#  endif 
+_GL_FUNCDECL_RPL (pwrite, ssize_t, 
+                  (int fd, const void *buf, size_t bufsize, off_t offset) 
+                  _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (pwrite, ssize_t, 
+                  (int fd, const void *buf, size_t bufsize, off_t offset)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (pwrite, ssize_t, 
+                  (int fd, const void *buf, size_t bufsize, off_t offset) 
+                  _GL_ARG_NONNULL ((2))); 
+#  endif 
+_GL_CXXALIAS_SYS (pwrite, ssize_t, 
+                  (int fd, const void *buf, size_t bufsize, off_t offset)); 
+# endif 
+_GL_CXXALIASWARN (pwrite); 
+#elif defined GNULIB_POSIXCHECK 
+# undef pwrite 
+# if HAVE_RAW_DECL_PWRITE 
+_GL_WARN_ON_USE (pwrite, "pwrite is unportable - " 
+                 "use gnulib module pwrite for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Read up to COUNT bytes from file descriptor FD into the buffer starting 
+   at BUF.  See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef read 
+#   define read rpl_read 
+#  endif 
+_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count) 
+                                 _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count)); 
+# else 
+/* Need to cast, because on mingw, the third parameter is 
+                                                          unsigned int count 
+   and the return type is 'int'.  */ 
+_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count)); 
+# endif 
+_GL_CXXALIASWARN (read); 
+#endif 
+ 
+ 
+#if 1 
+/* Read the contents of the symbolic link FILE and place the first BUFSIZE 
+   bytes of it into BUF.  Return the number of bytes placed into BUF if 
+   successful, otherwise -1 and errno set. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define readlink rpl_readlink 
+#  endif 
+_GL_FUNCDECL_RPL (readlink, ssize_t, 
+                  (const char *file, char *buf, size_t bufsize) 
+                  _GL_ARG_NONNULL ((1, 2))); 
+_GL_CXXALIAS_RPL (readlink, ssize_t, 
+                  (const char *file, char *buf, size_t bufsize)); 
+# else 
+#  if !0 
+_GL_FUNCDECL_SYS (readlink, ssize_t, 
+                  (const char *file, char *buf, size_t bufsize) 
+                  _GL_ARG_NONNULL ((1, 2))); 
+#  endif 
+_GL_CXXALIAS_SYS (readlink, ssize_t, 
+                  (const char *file, char *buf, size_t bufsize)); 
+# endif 
+_GL_CXXALIASWARN (readlink); 
+#elif defined GNULIB_POSIXCHECK 
+# undef readlink 
+# if HAVE_RAW_DECL_READLINK 
+_GL_WARN_ON_USE (readlink, "readlink is unportable - " 
+                 "use gnulib module readlink for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if !1 
+_GL_FUNCDECL_SYS (readlinkat, ssize_t, 
+                  (int fd, char const *file, char *buf, size_t len) 
+                  _GL_ARG_NONNULL ((2, 3))); 
+# endif 
+_GL_CXXALIAS_SYS (readlinkat, ssize_t, 
+                  (int fd, char const *file, char *buf, size_t len)); 
+_GL_CXXALIASWARN (readlinkat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef readlinkat 
+# if HAVE_RAW_DECL_READLINKAT 
+_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - " 
+                 "use gnulib module readlinkat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 1 
+/* Remove the directory DIR.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   define rmdir rpl_rmdir 
+#  endif 
+_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (rmdir, int, (char const *name)); 
+# else 
+_GL_CXXALIAS_SYS (rmdir, int, (char const *name)); 
+# endif 
+_GL_CXXALIASWARN (rmdir); 
+#elif defined GNULIB_POSIXCHECK 
+# undef rmdir 
+# if HAVE_RAW_DECL_RMDIR 
+_GL_WARN_ON_USE (rmdir, "rmdir is unportable - " 
+                 "use gnulib module rmdir for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Set the host name of the machine. 
+   The host name may or may not be fully qualified. 
+ 
+   Put LEN bytes of NAME into the host name. 
+   Return 0 if successful, otherwise, set errno and return -1. 
+ 
+   Platforms with no ability to set the hostname return -1 and set 
+   errno = ENOSYS.  */ 
+# if !1 || !1 
+_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len) 
+                                    _GL_ARG_NONNULL ((1))); 
+# endif 
+/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5 
+   and FreeBSD 6.4 the second parameter is int.  On Solaris 11 
+   2011-10, the first parameter is not const.  */ 
+_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len)); 
+_GL_CXXALIASWARN (sethostname); 
+#elif defined GNULIB_POSIXCHECK 
+# undef sethostname 
+# if HAVE_RAW_DECL_SETHOSTNAME 
+_GL_WARN_ON_USE (sethostname, "sethostname is unportable - " 
+                 "use gnulib module sethostname for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+/* Pause the execution of the current thread for N seconds. 
+   Returns the number of seconds left to sleep. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef sleep 
+#   define sleep rpl_sleep 
+#  endif 
+_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n)); 
+_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n)); 
+# else 
+#  if !0 
+_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n)); 
+#  endif 
+_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n)); 
+# endif 
+_GL_CXXALIASWARN (sleep); 
+#elif defined GNULIB_POSIXCHECK 
+# undef sleep 
+# if HAVE_RAW_DECL_SLEEP 
+_GL_WARN_ON_USE (sleep, "sleep is unportable - " 
+                 "use gnulib module sleep for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef symlink 
+#   define symlink rpl_symlink 
+#  endif 
+_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file) 
+                                _GL_ARG_NONNULL ((1, 2))); 
+_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file)); 
+# else 
+#  if !0 
+_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file) 
+                                _GL_ARG_NONNULL ((1, 2))); 
+#  endif 
+_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file)); 
+# endif 
+_GL_CXXALIASWARN (symlink); 
+#elif defined GNULIB_POSIXCHECK 
+# undef symlink 
+# if HAVE_RAW_DECL_SYMLINK 
+_GL_WARN_ON_USE (symlink, "symlink is not portable - " 
+                 "use gnulib module symlink for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if !1 
+_GL_FUNCDECL_SYS (symlinkat, int, 
+                  (char const *contents, int fd, char const *file) 
+                  _GL_ARG_NONNULL ((1, 3))); 
+# endif 
+_GL_CXXALIAS_SYS (symlinkat, int, 
+                  (char const *contents, int fd, char const *file)); 
+_GL_CXXALIASWARN (symlinkat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef symlinkat 
+# if HAVE_RAW_DECL_SYMLINKAT 
+_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - " 
+                 "use gnulib module symlinkat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Store at most BUFLEN characters of the pathname of the terminal FD is 
+   open on in BUF.  Return 0 on success, otherwise an error number.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef ttyname_r 
+#   define ttyname_r rpl_ttyname_r 
+#  endif 
+_GL_FUNCDECL_RPL (ttyname_r, int, 
+                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (ttyname_r, int, 
+                  (int fd, char *buf, size_t buflen)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (ttyname_r, int, 
+                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2))); 
+#  endif 
+_GL_CXXALIAS_SYS (ttyname_r, int, 
+                  (int fd, char *buf, size_t buflen)); 
+# endif 
+_GL_CXXALIASWARN (ttyname_r); 
+#elif defined GNULIB_POSIXCHECK 
+# undef ttyname_r 
+# if HAVE_RAW_DECL_TTYNAME_R 
+_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - " 
+                 "use gnulib module ttyname_r for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef unlink 
+#   define unlink rpl_unlink 
+#  endif 
+_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1))); 
+_GL_CXXALIAS_RPL (unlink, int, (char const *file)); 
+# else 
+_GL_CXXALIAS_SYS (unlink, int, (char const *file)); 
+# endif 
+_GL_CXXALIASWARN (unlink); 
+#elif defined GNULIB_POSIXCHECK 
+# undef unlink 
+# if HAVE_RAW_DECL_UNLINK 
+_GL_WARN_ON_USE (unlink, "unlink is not portable - " 
+                 "use gnulib module unlink for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef unlinkat 
+#   define unlinkat rpl_unlinkat 
+#  endif 
+_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag) 
+                                 _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag) 
+                                 _GL_ARG_NONNULL ((2))); 
+#  endif 
+_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag)); 
+# endif 
+_GL_CXXALIASWARN (unlinkat); 
+#elif defined GNULIB_POSIXCHECK 
+# undef unlinkat 
+# if HAVE_RAW_DECL_UNLINKAT 
+_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - " 
+                 "use gnulib module openat for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if 0 
+/* Pause the execution of the current thread for N microseconds. 
+   Returns 0 on completion, or -1 on range error. 
+   See the POSIX:2001 specification 
+   <http://www.opengroup.org/susv3xsh/usleep.html>.  */ 
+# if 0 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef usleep 
+#   define usleep rpl_usleep 
+#  endif 
+_GL_FUNCDECL_RPL (usleep, int, (useconds_t n)); 
+_GL_CXXALIAS_RPL (usleep, int, (useconds_t n)); 
+# else 
+#  if !1 
+_GL_FUNCDECL_SYS (usleep, int, (useconds_t n)); 
+#  endif 
+_GL_CXXALIAS_SYS (usleep, int, (useconds_t n)); 
+# endif 
+_GL_CXXALIASWARN (usleep); 
+#elif defined GNULIB_POSIXCHECK 
+# undef usleep 
+# if HAVE_RAW_DECL_USLEEP 
+_GL_WARN_ON_USE (usleep, "usleep is unportable - " 
+                 "use gnulib module usleep for portability"); 
+# endif 
+#endif 
+ 
+ 
+#if IN_M4_GNULIB_TESTS 
+/* Write up to COUNT bytes starting at BUF to file descriptor FD. 
+   See the POSIX:2008 specification 
+   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>.  */ 
+# if 1 
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE) 
+#   undef write 
+#   define write rpl_write 
+#  endif 
+_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count) 
+                                  _GL_ARG_NONNULL ((2))); 
+_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count)); 
+# else 
+/* Need to cast, because on mingw, the third parameter is 
+                                                             unsigned int count 
+   and the return type is 'int'.  */ 
+_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count)); 
+# endif 
+_GL_CXXALIASWARN (write); 
+#endif 
+ 
+_GL_INLINE_HEADER_END 
+ 
+#endif /* _GL_M4_UNISTD_H */ 
+#endif /* _GL_M4_UNISTD_H */