[monitoring-plugins] Add random files ...
RincewindsHat
git at monitoring-plugins.org
Sat Sep 17 03:00:13 CEST 2022
Module: monitoring-plugins
Branch: gnulib_2022
Commit: 5da988e07a96ff154db040befb5472f0dc784a17
Author: RincewindsHat <12514511+RincewindsHat at users.noreply.github.com>
Date: Thu Aug 25 18:23:54 2022 +0200
URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=5da988e
Add random files ...
---
gl/arg-nonnull.h | 26 +
gl/arpa/inet.h | 657 ++++++++++++++++++++++++
gl/c++defs.h | 331 +++++++++++++
gl/sys/socket.h | 1241 ++++++++++++++++++++++++++++++++++++++++++++++
gl/sys/stat.h | 1461 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
gl/sys/types.h | 107 ++++
gl/sys/uio.h | 64 +++
gl/warn-on-use.h | 149 ++++++
8 files changed, 4036 insertions(+)
diff --git a/gl/arg-nonnull.h b/gl/arg-nonnull.h
new file mode 100644
index 0000000..e4513ef
--- /dev/null
+++ b/gl/arg-nonnull.h
@@ -0,0 +1,26 @@
+/* A C macro for declaring that specific arguments must not be NULL.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _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__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
+# else
+# define _GL_ARG_NONNULL(params)
+# endif
+#endif
diff --git a/gl/arpa/inet.h b/gl/arpa/inet.h
new file mode 100644
index 0000000..ec1c725
--- /dev/null
+++ b/gl/arpa/inet.h
@@ -0,0 +1,657 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* A GNU-like <arpa/inet.h>.
+
+ Copyright (C) 2005-2006, 2008-2022 Free Software Foundation, Inc.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_ARPA_INET_H
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+#if 1
+# include <features.h> /* for __GLIBC__ */
+#endif
+
+/* Gnulib's sys/socket.h is responsible for defining socklen_t (used below) and
+ for pulling in winsock2.h etc. under MinGW.
+ But avoid namespace pollution on glibc systems. */
+#ifndef __GLIBC__
+# include <sys/socket.h>
+#endif
+
+/* On NonStop Kernel, inet_ntop and inet_pton are declared in <netdb.h>.
+ But avoid namespace pollution on glibc systems. */
+#if defined __TANDEM && !defined __GLIBC__
+# include <netdb.h>
+#endif
+
+#if 1
+
+/* The include_next requires a split double-inclusion guard. */
+# include_next <arpa/inet.h>
+
+#endif
+
+#ifndef _GL_ARPA_INET_H
+#define _GL_ARPA_INET_H
+
+/* Get all possible declarations of inet_ntop() and inet_pton(). */
+#if (1 || 0 || defined GNULIB_POSIXCHECK) \
+ && 0
+# include <ws2tcpip.h>
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+/* C++ compatible function declaration macros.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* Begin/end the GNULIB_NAMESPACE namespace. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
+/* The three most frequent use cases of these macros are:
+
+ * For providing a substitute for a function that is missing on some
+ platforms, but is declared and works fine on the platforms on which
+ it exists:
+
+ #if @GNULIB_FOO@
+ # if !@HAVE_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on all platforms,
+ but is broken/insufficient and needs to be replaced on some platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on some platforms
+ but is broken/insufficient and needs to be replaced on some of them and
+ is additionally either missing or undeclared on some other platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+*/
+
+/* _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, ...));
+
+ Wrapping rpl_func in an object with an inline conversion operator
+ avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::rpl_func; \
+ } \
+ } 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_MDA (func, rettype, parameters);
+ is to be used when func is a Microsoft deprecated alias, on native Windows.
+ It declares a C++ alias called GNULIB_NAMESPACE::func
+ that redirects to _func, if GNULIB_NAMESPACE is defined.
+ Example:
+ _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
+
+/* _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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::rpl_func); \
+ } \
+ } 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_MDA_CAST (func, rettype, parameters);
+ is like _GL_CXXALIAS_MDA (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. */
+#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
+
+/* _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, ...));
+
+ Wrapping func in an object with an inline conversion operator
+ avoids a reference to func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+ namespace GNULIB_NAMESPACE \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::func; \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::func); \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
+ } \
+ } 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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+ _GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
+ "The symbol ::" #func " refers to the system function. " \
+ "Use " #namespace "::" #func " instead.")
+# 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. */
+/* A C macro for declaring that specific arguments must not be NULL.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _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__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+# 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. */
+/* A C macro for emitting warnings if a function is used.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+ for FUNCTION which will then trigger a compiler warning containing
+ the text of "literal string" anywhere that function is called, if
+ supported by the compiler. If the compiler does not support this
+ feature, the macro expands to an unused extern declaration.
+
+ _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
+ attribute used in _GL_WARN_ON_USE. If the compiler does not support
+ this feature, it expands to empty.
+
+ These macros are useful for marking a function as a potential
+ portability trap, with the intent that "literal string" include
+ instructions on the replacement function that should be used
+ instead.
+ _GL_WARN_ON_USE is for functions with 'extern' linkage.
+ _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
+ linkage.
+
+ However, one of the reasons that a function is a portability trap is
+ if it has the wrong signature. Declaring FUNCTION with a different
+ signature in C is a compilation error, so this macro must use the
+ same type as any existing declaration so that programs that avoid
+ the problematic FUNCTION do not fail to compile merely because they
+ included a header that poisoned the function. But this implies that
+ _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
+ have a declaration. Use of this macro implies that there must not
+ be any other macro hiding the declaration of FUNCTION; but
+ undefining FUNCTION first is part of the poisoning process anyway
+ (although for symbols that are provided only via a macro, the result
+ is a compilation error rather than a warning containing
+ "literal string"). Also note that in C++, it is only safe to use if
+ FUNCTION has no overloads.
+
+ For an example, it is possible to poison 'getline' by:
+ - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+ [getline]) in configure.ac, which potentially defines
+ HAVE_RAW_DECL_GETLINE
+ - adding this code to a header that wraps the system <stdio.h>:
+ #undef getline
+ #if HAVE_RAW_DECL_GETLINE
+ _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+ "not universally present; use the gnulib module getline");
+ #endif
+
+ It is not possible to directly poison global variables. But it is
+ possible to write a wrapper accessor function, and poison that
+ (less common usage, like &environ, will cause a compilation error
+ rather than issue the nice warning, but the end result of informing
+ the developer about their portability problem is still achieved):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ rpl_environ (void) { return &environ; }
+ _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ or better (avoiding contradictory use of 'static' and 'extern'):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
+ rpl_environ (void) { return &environ; }
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ */
+#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) \
+_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__warning__ (message)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
+ is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode 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 !defined __cplusplus
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+ _GL_WARN_ON_USE (function, msg)
+# else
+# 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_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes \
+ __attribute__ ((__warning__ (msg)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_clang function parameters_and_attributes \
+ __attribute__ ((__diagnose_if__ (1, msg, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+# 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
+
+
+#if 1
+/* Converts an internet address from internal format to a printable,
+ presentable format.
+ AF is an internet address family, such as AF_INET or AF_INET6.
+ SRC points to a 'struct in_addr' (for AF_INET) or 'struct in6_addr'
+ (for AF_INET6).
+ DST points to a buffer having room for CNT bytes.
+ The printable representation of the address (in numeric form, not
+ surrounded by [...], no reverse DNS is done) is placed in DST, and
+ DST is returned. If an error occurs, the return value is NULL and
+ errno is set. If CNT bytes are not sufficient to hold the result,
+ the return value is NULL and errno is set to ENOSPC. A good value
+ for CNT is 46.
+
+ For more details, see the POSIX:2008 specification
+ <https://pubs.opengroup.org/onlinepubs/9699919799/functions/inet_ntop.html>. */
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef inet_ntop
+# define inet_ntop rpl_inet_ntop
+# endif
+_GL_FUNCDECL_RPL (inet_ntop, const char *,
+ (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (inet_ntop, const char *,
+ (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt));
+# else
+# if !1
+_GL_FUNCDECL_SYS (inet_ntop, const char *,
+ (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt)
+ _GL_ARG_NONNULL ((2, 3)));
+# endif
+/* Need to cast, because on NonStop Kernel, the fourth parameter is
+ size_t cnt. */
+_GL_CXXALIAS_SYS_CAST (inet_ntop, const char *,
+ (int af, const void *restrict src,
+ char *restrict dst, socklen_t cnt));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (inet_ntop);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef inet_ntop
+# if HAVE_RAW_DECL_INET_NTOP
+_GL_WARN_ON_USE (inet_ntop, "inet_ntop is unportable - "
+ "use gnulib module inet_ntop for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef inet_pton
+# define inet_pton rpl_inet_pton
+# endif
+_GL_FUNCDECL_RPL (inet_pton, int,
+ (int af, const char *restrict src, void *restrict dst)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (inet_pton, int,
+ (int af, const char *restrict src, void *restrict dst));
+# else
+# if !1
+_GL_FUNCDECL_SYS (inet_pton, int,
+ (int af, const char *restrict src, void *restrict dst)
+ _GL_ARG_NONNULL ((2, 3)));
+# endif
+_GL_CXXALIAS_SYS (inet_pton, int,
+ (int af, const char *restrict src, void *restrict dst));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (inet_pton);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef inet_pton
+# if HAVE_RAW_DECL_INET_PTON
+_GL_WARN_ON_USE (inet_pton, "inet_pton is unportable - "
+ "use gnulib module inet_pton for portability");
+# endif
+#endif
+
+
+#endif /* _GL_ARPA_INET_H */
+#endif /* _GL_ARPA_INET_H */
diff --git a/gl/c++defs.h b/gl/c++defs.h
new file mode 100644
index 0000000..ad18155
--- /dev/null
+++ b/gl/c++defs.h
@@ -0,0 +1,331 @@
+/* C++ compatible function declaration macros.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* Begin/end the GNULIB_NAMESPACE namespace. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
+/* The three most frequent use cases of these macros are:
+
+ * For providing a substitute for a function that is missing on some
+ platforms, but is declared and works fine on the platforms on which
+ it exists:
+
+ #if @GNULIB_FOO@
+ # if !@HAVE_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on all platforms,
+ but is broken/insufficient and needs to be replaced on some platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on some platforms
+ but is broken/insufficient and needs to be replaced on some of them and
+ is additionally either missing or undeclared on some other platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+*/
+
+/* _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, ...));
+
+ Wrapping rpl_func in an object with an inline conversion operator
+ avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::rpl_func; \
+ } \
+ } 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_MDA (func, rettype, parameters);
+ is to be used when func is a Microsoft deprecated alias, on native Windows.
+ It declares a C++ alias called GNULIB_NAMESPACE::func
+ that redirects to _func, if GNULIB_NAMESPACE is defined.
+ Example:
+ _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
+
+/* _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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::rpl_func); \
+ } \
+ } 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_MDA_CAST (func, rettype, parameters);
+ is like _GL_CXXALIAS_MDA (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. */
+#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
+
+/* _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, ...));
+
+ Wrapping func in an object with an inline conversion operator
+ avoids a reference to func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+ namespace GNULIB_NAMESPACE \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::func; \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::func); \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
+ } \
+ } 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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+ _GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
+ "The symbol ::" #func " refers to the system function. " \
+ "Use " #namespace "::" #func " instead.")
+# 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 */
diff --git a/gl/sys/socket.h b/gl/sys/socket.h
new file mode 100644
index 0000000..0519ccb
--- /dev/null
+++ b/gl/sys/socket.h
@@ -0,0 +1,1241 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Provide a sys/socket header file for systems lacking it (read: MinGW)
+ and for systems where it is incomplete.
+ Copyright (C) 2005-2022 Free Software Foundation, Inc.
+ Written by Simon Josefsson.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* This file is supposed to be used on platforms that lack <sys/socket.h>,
+ on platforms where <sys/socket.h> cannot be included standalone, and on
+ platforms where <sys/socket.h> does not provide all necessary definitions.
+ It is intended to provide definitions and prototypes needed by an
+ application. */
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+#if defined _GL_ALREADY_INCLUDING_SYS_SOCKET_H
+/* Special invocation convention:
+ - On Cygwin 1.5.x we have a sequence of nested includes
+ <sys/socket.h> -> <cygwin/socket.h> -> <asm/socket.h> -> <cygwin/if.h>,
+ and the latter includes <sys/socket.h>. In this situation, the functions
+ are not yet declared, therefore we cannot provide the C++ aliases. */
+
+#include_next <sys/socket.h>
+
+#else
+/* Normal invocation convention. */
+
+#ifndef _GL_SYS_SOCKET_H
+
+#if 1
+
+# define _GL_ALREADY_INCLUDING_SYS_SOCKET_H
+
+/* On many platforms, <sys/socket.h> assumes prior inclusion of
+ <sys/types.h>. */
+# include <sys/types.h>
+
+/* On FreeBSD 6.4, <sys/socket.h> defines some macros that assume that NULL
+ is defined. */
+# include <stddef.h>
+
+/* The include_next requires a split double-inclusion guard. */
+# include_next <sys/socket.h>
+
+# undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H
+
+#endif
+
+#ifndef _GL_SYS_SOCKET_H
+#define _GL_SYS_SOCKET_H
+
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef _GL_SYS_SOCKET_INLINE
+# define _GL_SYS_SOCKET_INLINE _GL_INLINE
+#endif
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+/* C++ compatible function declaration macros.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* Begin/end the GNULIB_NAMESPACE namespace. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
+/* The three most frequent use cases of these macros are:
+
+ * For providing a substitute for a function that is missing on some
+ platforms, but is declared and works fine on the platforms on which
+ it exists:
+
+ #if @GNULIB_FOO@
+ # if !@HAVE_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on all platforms,
+ but is broken/insufficient and needs to be replaced on some platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on some platforms
+ but is broken/insufficient and needs to be replaced on some of them and
+ is additionally either missing or undeclared on some other platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+*/
+
+/* _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, ...));
+
+ Wrapping rpl_func in an object with an inline conversion operator
+ avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::rpl_func; \
+ } \
+ } 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_MDA (func, rettype, parameters);
+ is to be used when func is a Microsoft deprecated alias, on native Windows.
+ It declares a C++ alias called GNULIB_NAMESPACE::func
+ that redirects to _func, if GNULIB_NAMESPACE is defined.
+ Example:
+ _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
+
+/* _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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::rpl_func); \
+ } \
+ } 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_MDA_CAST (func, rettype, parameters);
+ is like _GL_CXXALIAS_MDA (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. */
+#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
+
+/* _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, ...));
+
+ Wrapping func in an object with an inline conversion operator
+ avoids a reference to func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+ namespace GNULIB_NAMESPACE \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::func; \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::func); \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
+ } \
+ } 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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+ _GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
+ "The symbol ::" #func " refers to the system function. " \
+ "Use " #namespace "::" #func " instead.")
+# 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. */
+/* A C macro for declaring that specific arguments must not be NULL.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _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__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+# 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. */
+/* A C macro for emitting warnings if a function is used.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+ for FUNCTION which will then trigger a compiler warning containing
+ the text of "literal string" anywhere that function is called, if
+ supported by the compiler. If the compiler does not support this
+ feature, the macro expands to an unused extern declaration.
+
+ _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
+ attribute used in _GL_WARN_ON_USE. If the compiler does not support
+ this feature, it expands to empty.
+
+ These macros are useful for marking a function as a potential
+ portability trap, with the intent that "literal string" include
+ instructions on the replacement function that should be used
+ instead.
+ _GL_WARN_ON_USE is for functions with 'extern' linkage.
+ _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
+ linkage.
+
+ However, one of the reasons that a function is a portability trap is
+ if it has the wrong signature. Declaring FUNCTION with a different
+ signature in C is a compilation error, so this macro must use the
+ same type as any existing declaration so that programs that avoid
+ the problematic FUNCTION do not fail to compile merely because they
+ included a header that poisoned the function. But this implies that
+ _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
+ have a declaration. Use of this macro implies that there must not
+ be any other macro hiding the declaration of FUNCTION; but
+ undefining FUNCTION first is part of the poisoning process anyway
+ (although for symbols that are provided only via a macro, the result
+ is a compilation error rather than a warning containing
+ "literal string"). Also note that in C++, it is only safe to use if
+ FUNCTION has no overloads.
+
+ For an example, it is possible to poison 'getline' by:
+ - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+ [getline]) in configure.ac, which potentially defines
+ HAVE_RAW_DECL_GETLINE
+ - adding this code to a header that wraps the system <stdio.h>:
+ #undef getline
+ #if HAVE_RAW_DECL_GETLINE
+ _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+ "not universally present; use the gnulib module getline");
+ #endif
+
+ It is not possible to directly poison global variables. But it is
+ possible to write a wrapper accessor function, and poison that
+ (less common usage, like &environ, will cause a compilation error
+ rather than issue the nice warning, but the end result of informing
+ the developer about their portability problem is still achieved):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ rpl_environ (void) { return &environ; }
+ _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ or better (avoiding contradictory use of 'static' and 'extern'):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
+ rpl_environ (void) { return &environ; }
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ */
+#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) \
+_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__warning__ (message)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
+ is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode 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 !defined __cplusplus
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+ _GL_WARN_ON_USE (function, msg)
+# else
+# 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_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes \
+ __attribute__ ((__warning__ (msg)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_clang function parameters_and_attributes \
+ __attribute__ ((__diagnose_if__ (1, msg, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+# 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
+
+#if !1
+# if !GNULIB_defined_sa_family_t
+/* On OS/2 kLIBC, sa_family_t is unsigned char unless TCPV40HDRS is defined. */
+# if !defined __KLIBC__ || defined TCPV40HDRS
+typedef unsigned short sa_family_t;
+# else
+typedef unsigned char sa_family_t;
+# endif
+# define GNULIB_defined_sa_family_t 1
+# endif
+#endif
+
+#if 1
+/* Make the 'struct sockaddr_storage' field 'ss_family' visible on AIX 7.1. */
+# if !1
+# ifndef ss_family
+# define ss_family __ss_family
+# endif
+# endif
+#else
+# include <stdalign.h>
+/* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on
+ 2009-05-08, licensed under LGPLv2.1+, plus portability fixes. */
+# define __ss_aligntype unsigned long int
+# define _SS_SIZE 256
+# define _SS_PADSIZE \
+ (_SS_SIZE - ((sizeof (sa_family_t) >= alignof (__ss_aligntype) \
+ ? sizeof (sa_family_t) \
+ : alignof (__ss_aligntype)) \
+ + sizeof (__ss_aligntype)))
+
+# if !GNULIB_defined_struct_sockaddr_storage
+struct sockaddr_storage
+{
+ sa_family_t ss_family; /* Address family, etc. */
+ __ss_aligntype __ss_align; /* Force desired alignment. */
+ char __ss_padding[_SS_PADSIZE];
+};
+# define GNULIB_defined_struct_sockaddr_storage 1
+# endif
+
+#endif
+
+/* Get struct iovec. */
+/* But avoid namespace pollution on glibc systems. */
+#if ! defined __GLIBC__
+# include <sys/uio.h>
+#endif
+
+#if 1
+
+/* A platform that has <sys/socket.h>. */
+
+/* For shutdown(). */
+# if !defined SHUT_RD
+# define SHUT_RD 0
+# endif
+# if !defined SHUT_WR
+# define SHUT_WR 1
+# endif
+# if !defined SHUT_RDWR
+# define SHUT_RDWR 2
+# endif
+
+# ifdef __VMS /* OpenVMS */
+# ifndef CMSG_SPACE
+# define CMSG_SPACE(length) _CMSG_SPACE(length)
+# endif
+# ifndef CMSG_LEN
+# define CMSG_LEN(length) _CMSG_LEN(length)
+# endif
+# endif
+
+#else
+
+# ifdef __CYGWIN__
+# error "Cygwin does have a sys/socket.h, doesn't it?!?"
+# endif
+
+/* A platform that lacks <sys/socket.h>.
+
+ Currently only MinGW is supported. See the gnulib manual regarding
+ Windows sockets. MinGW has the header files winsock2.h and
+ ws2tcpip.h that declare the sys/socket.h definitions we need. Note
+ that you can influence which definitions you get by setting the
+ WINVER symbol before including these two files. For example,
+ getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
+ symbol is set indirectly through WINVER). You can set this by
+ adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
+ code may not run on older Windows releases then. My Windows 2000
+ box was not able to run the code, for example. The situation is
+ slightly confusing because
+ <https://docs.microsoft.com/en-us/windows/desktop/api/ws2tcpip/nf-ws2tcpip-getaddrinfo>
+ suggests that getaddrinfo should be available on all Windows
+ releases. */
+
+# if 0
+# include <winsock2.h>
+# endif
+# if 0
+# include <ws2tcpip.h>
+# endif
+
+/* For shutdown(). */
+# if !defined SHUT_RD && defined SD_RECEIVE
+# define SHUT_RD SD_RECEIVE
+# endif
+# if !defined SHUT_WR && defined SD_SEND
+# define SHUT_WR SD_SEND
+# endif
+# if !defined SHUT_RDWR && defined SD_BOTH
+# define SHUT_RDWR SD_BOTH
+# endif
+
+# if 0
+/* Include headers needed by the emulation code. */
+# include <sys/types.h>
+# include <io.h>
+/* If these headers don't define socklen_t, <config.h> does. */
+# endif
+
+/* Rudimentary 'struct msghdr'; this works as long as you don't try to
+ access msg_control or msg_controllen. */
+struct msghdr {
+ void *msg_name;
+ socklen_t msg_namelen;
+ struct iovec *msg_iov;
+ int msg_iovlen;
+ int msg_flags;
+};
+
+#endif
+
+/* Ensure SO_REUSEPORT is defined. */
+/* For the subtle differences between SO_REUSEPORT and SO_REUSEADDR, see
+ https://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t
+ and https://lwn.net/Articles/542629/
+ */
+#ifndef SO_REUSEPORT
+# define SO_REUSEPORT SO_REUSEADDR
+#endif
+
+/* Fix some definitions from <winsock2.h>. */
+
+#if 0
+
+# if !GNULIB_defined_rpl_fd_isset
+
+/* Re-define FD_ISSET to avoid a WSA call while we are not using
+ network sockets. */
+_GL_SYS_SOCKET_INLINE int
+rpl_fd_isset (SOCKET fd, fd_set * set)
+{
+ u_int i;
+ if (set == NULL)
+ return 0;
+
+ for (i = 0; i < set->fd_count; i++)
+ if (set->fd_array[i] == fd)
+ return 1;
+
+ return 0;
+}
+
+# define GNULIB_defined_rpl_fd_isset 1
+# endif
+
+# undef FD_ISSET
+# define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
+
+#endif
+
+/* Hide some function declarations from <winsock2.h>. */
+
+#if 0
+# if !defined _GL_UNISTD_H
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef close
+# define close close_used_without_including_unistd_h
+# elif !defined __clang__
+ _GL_WARN_ON_USE (close,
+ "close() used without including <unistd.h>");
+# endif
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef gethostname
+# define gethostname gethostname_used_without_including_unistd_h
+# else
+ _GL_WARN_ON_USE (gethostname,
+ "gethostname() used without including <unistd.h>");
+# endif
+# endif
+# if !defined _GL_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
+
+/* Wrap everything else to use libc file descriptors for sockets. */
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef socket
+# define socket rpl_socket
+# endif
+_GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol));
+_GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol));
+# else
+_GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol));
+# endif
+_GL_CXXALIASWARN (socket);
+#elif 0
+# undef socket
+# define socket socket_used_without_requesting_gnulib_module_socket
+#elif defined GNULIB_POSIXCHECK
+# undef socket
+# if HAVE_RAW_DECL_SOCKET
+_GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - "
+ "use gnulib module socket for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef connect
+# define connect rpl_connect
+# endif
+_GL_FUNCDECL_RPL (connect, int,
+ (int fd, const struct sockaddr *addr, socklen_t addrlen)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (connect, int,
+ (int fd, const struct sockaddr *addr, socklen_t addrlen));
+# else
+/* Need to cast, because on NonStop Kernel, the third parameter is
+ size_t addrlen. */
+_GL_CXXALIAS_SYS_CAST (connect, int,
+ (int fd,
+ const struct sockaddr *addr, socklen_t addrlen));
+# endif
+_GL_CXXALIASWARN (connect);
+#elif 0
+# undef connect
+# define connect socket_used_without_requesting_gnulib_module_connect
+#elif defined GNULIB_POSIXCHECK
+# undef connect
+# if HAVE_RAW_DECL_CONNECT
+_GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - "
+ "use gnulib module connect for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef accept
+# define accept rpl_accept
+# endif
+_GL_FUNCDECL_RPL (accept, int,
+ (int fd,
+ struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+_GL_CXXALIAS_RPL (accept, int,
+ (int fd,
+ struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# else
+/* Need to cast, because on Solaris 10 systems, the third parameter is
+ void *addrlen. */
+_GL_CXXALIAS_SYS_CAST (accept, int,
+ (int fd,
+ struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# endif
+_GL_CXXALIASWARN (accept);
+#elif 0
+# undef accept
+# define accept accept_used_without_requesting_gnulib_module_accept
+#elif defined GNULIB_POSIXCHECK
+# undef accept
+# if HAVE_RAW_DECL_ACCEPT
+_GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - "
+ "use gnulib module accept for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef bind
+# define bind rpl_bind
+# endif
+_GL_FUNCDECL_RPL (bind, int,
+ (int fd, const struct sockaddr *addr, socklen_t addrlen)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (bind, int,
+ (int fd, const struct sockaddr *addr, socklen_t addrlen));
+# else
+/* Need to cast, because on NonStop Kernel, the third parameter is
+ size_t addrlen. */
+_GL_CXXALIAS_SYS_CAST (bind, int,
+ (int fd,
+ const struct sockaddr *addr, socklen_t addrlen));
+# endif
+_GL_CXXALIASWARN (bind);
+#elif 0
+# undef bind
+# define bind bind_used_without_requesting_gnulib_module_bind
+#elif defined GNULIB_POSIXCHECK
+# undef bind
+# if HAVE_RAW_DECL_BIND
+_GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - "
+ "use gnulib module bind for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getpeername
+# define getpeername rpl_getpeername
+# endif
+_GL_FUNCDECL_RPL (getpeername, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (getpeername, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# else
+/* Need to cast, because on Solaris 10 systems, the third parameter is
+ void *addrlen. */
+_GL_CXXALIAS_SYS_CAST (getpeername, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# endif
+_GL_CXXALIASWARN (getpeername);
+#elif 0
+# undef getpeername
+# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
+#elif defined GNULIB_POSIXCHECK
+# undef getpeername
+# if HAVE_RAW_DECL_GETPEERNAME
+_GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - "
+ "use gnulib module getpeername for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getsockname
+# define getsockname rpl_getsockname
+# endif
+_GL_FUNCDECL_RPL (getsockname, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (getsockname, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# else
+/* Need to cast, because on Solaris 10 systems, the third parameter is
+ void *addrlen. */
+_GL_CXXALIAS_SYS_CAST (getsockname, int,
+ (int fd, struct sockaddr *restrict addr,
+ socklen_t *restrict addrlen));
+# endif
+_GL_CXXALIASWARN (getsockname);
+#elif 0
+# undef getsockname
+# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
+#elif defined GNULIB_POSIXCHECK
+# undef getsockname
+# if HAVE_RAW_DECL_GETSOCKNAME
+_GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - "
+ "use gnulib module getsockname for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getsockopt
+# define getsockopt rpl_getsockopt
+# endif
+_GL_FUNCDECL_RPL (getsockopt, int,
+ (int fd, int level, int optname,
+ void *restrict optval, socklen_t *restrict optlen)
+ _GL_ARG_NONNULL ((4, 5)));
+_GL_CXXALIAS_RPL (getsockopt, int,
+ (int fd, int level, int optname,
+ void *restrict optval, socklen_t *restrict optlen));
+# else
+/* Need to cast, because on Solaris 10 systems, the fifth parameter is
+ void *optlen. */
+_GL_CXXALIAS_SYS_CAST (getsockopt, int,
+ (int fd, int level, int optname,
+ void *restrict optval, socklen_t *restrict optlen));
+# endif
+_GL_CXXALIASWARN (getsockopt);
+#elif 0
+# undef getsockopt
+# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
+#elif defined GNULIB_POSIXCHECK
+# undef getsockopt
+# if HAVE_RAW_DECL_GETSOCKOPT
+_GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - "
+ "use gnulib module getsockopt for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef listen
+# define listen rpl_listen
+# endif
+_GL_FUNCDECL_RPL (listen, int, (int fd, int backlog));
+_GL_CXXALIAS_RPL (listen, int, (int fd, int backlog));
+# else
+_GL_CXXALIAS_SYS (listen, int, (int fd, int backlog));
+# endif
+_GL_CXXALIASWARN (listen);
+#elif 0
+# undef listen
+# define listen listen_used_without_requesting_gnulib_module_listen
+#elif defined GNULIB_POSIXCHECK
+# undef listen
+# if HAVE_RAW_DECL_LISTEN
+_GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - "
+ "use gnulib module listen for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef recv
+# define recv rpl_recv
+# endif
+_GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
+# else
+/* Need to cast, because on HP-UX 11.31 the return type may be
+ int,
+ depending on compiler options. */
+_GL_CXXALIAS_SYS_CAST (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
+# endif
+_GL_CXXALIASWARN (recv);
+#elif 0
+# undef recv
+# define recv recv_used_without_requesting_gnulib_module_recv
+#elif defined GNULIB_POSIXCHECK
+# undef recv
+# if HAVE_RAW_DECL_RECV
+_GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - "
+ "use gnulib module recv for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef send
+# define send rpl_send
+# endif
+_GL_FUNCDECL_RPL (send, ssize_t,
+ (int fd, const void *buf, size_t len, int flags)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (send, ssize_t,
+ (int fd, const void *buf, size_t len, int flags));
+# else
+/* Need to cast, because on HP-UX 11.31 the return type may be
+ int,
+ depending on compiler options. */
+_GL_CXXALIAS_SYS_CAST (send, ssize_t,
+ (int fd, const void *buf, size_t len, int flags));
+# endif
+_GL_CXXALIASWARN (send);
+#elif 0
+# undef send
+# define send send_used_without_requesting_gnulib_module_send
+#elif defined GNULIB_POSIXCHECK
+# undef send
+# if HAVE_RAW_DECL_SEND
+_GL_WARN_ON_USE (send, "send is not always POSIX compliant - "
+ "use gnulib module send for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef recvfrom
+# define recvfrom rpl_recvfrom
+# endif
+_GL_FUNCDECL_RPL (recvfrom, ssize_t,
+ (int fd, void *restrict buf, size_t len, int flags,
+ struct sockaddr *restrict from,
+ socklen_t *restrict fromlen)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (recvfrom, ssize_t,
+ (int fd, void *restrict buf, size_t len, int flags,
+ struct sockaddr *restrict from,
+ socklen_t *restrict fromlen));
+# else
+/* Need to cast, because on Solaris 10 systems, the sixth parameter is
+ void *fromlen. */
+_GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t,
+ (int fd, void *restrict buf, size_t len, int flags,
+ struct sockaddr *restrict from,
+ socklen_t *restrict fromlen));
+# endif
+_GL_CXXALIASWARN (recvfrom);
+#elif 0
+# undef recvfrom
+# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
+#elif defined GNULIB_POSIXCHECK
+# undef recvfrom
+# if HAVE_RAW_DECL_RECVFROM
+_GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - "
+ "use gnulib module recvfrom for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef sendto
+# define sendto rpl_sendto
+# endif
+_GL_FUNCDECL_RPL (sendto, ssize_t,
+ (int fd, const void *buf, size_t len, int flags,
+ const struct sockaddr *to, socklen_t tolen)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (sendto, ssize_t,
+ (int fd, const void *buf, size_t len, int flags,
+ const struct sockaddr *to, socklen_t tolen));
+# else
+/* Need to cast, because on NonStop Kernel, the sixth parameter is
+ size_t tolen. */
+_GL_CXXALIAS_SYS_CAST (sendto, ssize_t,
+ (int fd, const void *buf, size_t len, int flags,
+ const struct sockaddr *to, socklen_t tolen));
+# endif
+_GL_CXXALIASWARN (sendto);
+#elif 0
+# undef sendto
+# define sendto sendto_used_without_requesting_gnulib_module_sendto
+#elif defined GNULIB_POSIXCHECK
+# undef sendto
+# if HAVE_RAW_DECL_SENDTO
+_GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - "
+ "use gnulib module sendto for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef setsockopt
+# define setsockopt rpl_setsockopt
+# endif
+_GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname,
+ const void * optval, socklen_t optlen)
+ _GL_ARG_NONNULL ((4)));
+_GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname,
+ const void * optval, socklen_t optlen));
+# else
+/* Need to cast, because on NonStop Kernel, the fifth parameter is
+ size_t optlen. */
+_GL_CXXALIAS_SYS_CAST (setsockopt, int,
+ (int fd, int level, int optname,
+ const void * optval, socklen_t optlen));
+# endif
+_GL_CXXALIASWARN (setsockopt);
+#elif 0
+# undef setsockopt
+# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
+#elif defined GNULIB_POSIXCHECK
+# undef setsockopt
+# if HAVE_RAW_DECL_SETSOCKOPT
+_GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - "
+ "use gnulib module setsockopt for portability");
+# endif
+#endif
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef shutdown
+# define shutdown rpl_shutdown
+# endif
+_GL_FUNCDECL_RPL (shutdown, int, (int fd, int how));
+_GL_CXXALIAS_RPL (shutdown, int, (int fd, int how));
+# else
+_GL_CXXALIAS_SYS (shutdown, int, (int fd, int how));
+# endif
+_GL_CXXALIASWARN (shutdown);
+#elif 0
+# undef shutdown
+# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown
+#elif defined GNULIB_POSIXCHECK
+# undef shutdown
+# if HAVE_RAW_DECL_SHUTDOWN
+_GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - "
+ "use gnulib module shutdown for portability");
+# endif
+#endif
+
+#if 0
+/* Accept a connection on a socket, with specific opening flags.
+ The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
+ and O_TEXT, O_BINARY (defined in "binary-io.h").
+ See also the Linux man page at
+ <https://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>. */
+# if 1
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define accept4 rpl_accept4
+# endif
+_GL_FUNCDECL_RPL (accept4, int,
+ (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+ int flags));
+_GL_CXXALIAS_RPL (accept4, int,
+ (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+ int flags));
+# else
+_GL_FUNCDECL_SYS (accept4, int,
+ (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+ int flags));
+_GL_CXXALIAS_SYS (accept4, int,
+ (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
+ int flags));
+# endif
+_GL_CXXALIASWARN (accept4);
+#elif defined GNULIB_POSIXCHECK
+# undef accept4
+# if HAVE_RAW_DECL_ACCEPT4
+_GL_WARN_ON_USE (accept4, "accept4 is unportable - "
+ "use gnulib module accept4 for portability");
+# endif
+#endif
+
+_GL_INLINE_HEADER_END
+
+#endif /* _GL_SYS_SOCKET_H */
+#endif /* _GL_SYS_SOCKET_H */
+#endif
diff --git a/gl/sys/stat.h b/gl/sys/stat.h
new file mode 100644
index 0000000..8120383
--- /dev/null
+++ b/gl/sys/stat.h
@@ -0,0 +1,1461 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Provide a more complete sys/stat.h header file.
+ Copyright (C) 2005-2022 Free Software Foundation, Inc.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake, Paul Eggert, and Jim Meyering. */
+
+/* This file is supposed to be used on platforms where <sys/stat.h> is
+ incomplete. It is intended to provide definitions and prototypes
+ needed by an application. Start with what the system provides. */
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+#if defined __need_system_sys_stat_h
+/* Special invocation convention. */
+
+#include_next <sys/stat.h>
+
+#else
+/* Normal invocation convention. */
+
+#ifndef _GL_SYS_STAT_H
+
+/* Get nlink_t.
+ May also define off_t to a 64-bit type on native Windows. */
+#include <sys/types.h>
+
+/* Get struct timespec. */
+#include <time.h>
+
+/* The include_next requires a split double-inclusion guard. */
+#include_next <sys/stat.h>
+
+#ifndef _GL_SYS_STAT_H
+#define _GL_SYS_STAT_H
+
+/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
+/* C++ compatible function declaration macros.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#ifndef _GL_CXXDEFS_H
+#define _GL_CXXDEFS_H
+
+/* Begin/end the GNULIB_NAMESPACE namespace. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
+# define _GL_END_NAMESPACE }
+#else
+# define _GL_BEGIN_NAMESPACE
+# define _GL_END_NAMESPACE
+#endif
+
+/* The three most frequent use cases of these macros are:
+
+ * For providing a substitute for a function that is missing on some
+ platforms, but is declared and works fine on the platforms on which
+ it exists:
+
+ #if @GNULIB_FOO@
+ # if !@HAVE_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on all platforms,
+ but is broken/insufficient and needs to be replaced on some platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+
+ * For providing a replacement for a function that exists on some platforms
+ but is broken/insufficient and needs to be replaced on some of them and
+ is additionally either missing or undeclared on some other platforms:
+
+ #if @GNULIB_FOO@
+ # if @REPLACE_FOO@
+ # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+ # undef foo
+ # define foo rpl_foo
+ # endif
+ _GL_FUNCDECL_RPL (foo, ...);
+ _GL_CXXALIAS_RPL (foo, ...);
+ # else
+ # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
+ _GL_FUNCDECL_SYS (foo, ...);
+ # endif
+ _GL_CXXALIAS_SYS (foo, ...);
+ # endif
+ _GL_CXXALIASWARN (foo);
+ #elif defined GNULIB_POSIXCHECK
+ ...
+ #endif
+*/
+
+/* _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, ...));
+
+ Wrapping rpl_func in an object with an inline conversion operator
+ avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::rpl_func; \
+ } \
+ } 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_MDA (func, rettype, parameters);
+ is to be used when func is a Microsoft deprecated alias, on native Windows.
+ It declares a C++ alias called GNULIB_NAMESPACE::func
+ that redirects to _func, if GNULIB_NAMESPACE is defined.
+ Example:
+ _GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
+ */
+#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
+
+/* _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 \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::rpl_func); \
+ } \
+ } 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_MDA_CAST (func, rettype, parameters);
+ is like _GL_CXXALIAS_MDA (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. */
+#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
+ _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
+
+/* _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, ...));
+
+ Wrapping func in an object with an inline conversion operator
+ avoids a reference to func unless GNULIB_NAMESPACE::func is
+ actually used in the program. */
+#if defined __cplusplus && defined GNULIB_NAMESPACE
+# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
+ namespace GNULIB_NAMESPACE \
+ { \
+ static const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return ::func; \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>(::func); \
+ } \
+ } 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 const struct _gl_ ## func ## _wrapper \
+ { \
+ typedef rettype (*type) parameters; \
+ \
+ inline operator type () const \
+ { \
+ return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
+ } \
+ } 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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
+ we enable the warning only when not optimizing. */
+# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
+# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
+ _GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
+ "The symbol ::" #func " refers to the system function. " \
+ "Use " #namespace "::" #func " instead.")
+# 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. */
+/* A C macro for declaring that specific arguments must not be NULL.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _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__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
+# 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. */
+/* A C macro for emitting warnings if a function is used.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+ for FUNCTION which will then trigger a compiler warning containing
+ the text of "literal string" anywhere that function is called, if
+ supported by the compiler. If the compiler does not support this
+ feature, the macro expands to an unused extern declaration.
+
+ _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
+ attribute used in _GL_WARN_ON_USE. If the compiler does not support
+ this feature, it expands to empty.
+
+ These macros are useful for marking a function as a potential
+ portability trap, with the intent that "literal string" include
+ instructions on the replacement function that should be used
+ instead.
+ _GL_WARN_ON_USE is for functions with 'extern' linkage.
+ _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
+ linkage.
+
+ However, one of the reasons that a function is a portability trap is
+ if it has the wrong signature. Declaring FUNCTION with a different
+ signature in C is a compilation error, so this macro must use the
+ same type as any existing declaration so that programs that avoid
+ the problematic FUNCTION do not fail to compile merely because they
+ included a header that poisoned the function. But this implies that
+ _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
+ have a declaration. Use of this macro implies that there must not
+ be any other macro hiding the declaration of FUNCTION; but
+ undefining FUNCTION first is part of the poisoning process anyway
+ (although for symbols that are provided only via a macro, the result
+ is a compilation error rather than a warning containing
+ "literal string"). Also note that in C++, it is only safe to use if
+ FUNCTION has no overloads.
+
+ For an example, it is possible to poison 'getline' by:
+ - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+ [getline]) in configure.ac, which potentially defines
+ HAVE_RAW_DECL_GETLINE
+ - adding this code to a header that wraps the system <stdio.h>:
+ #undef getline
+ #if HAVE_RAW_DECL_GETLINE
+ _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+ "not universally present; use the gnulib module getline");
+ #endif
+
+ It is not possible to directly poison global variables. But it is
+ possible to write a wrapper accessor function, and poison that
+ (less common usage, like &environ, will cause a compilation error
+ rather than issue the nice warning, but the end result of informing
+ the developer about their portability problem is still achieved):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ rpl_environ (void) { return &environ; }
+ _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ or better (avoiding contradictory use of 'static' and 'extern'):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
+ rpl_environ (void) { return &environ; }
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ */
+#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) \
+_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__warning__ (message)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
+ is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode 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 !defined __cplusplus
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+ _GL_WARN_ON_USE (function, msg)
+# else
+# 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_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes \
+ __attribute__ ((__warning__ (msg)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_clang function parameters_and_attributes \
+ __attribute__ ((__diagnose_if__ (1, msg, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+# 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
+
+/* Before doing "#define mknod rpl_mknod" below, we need to include all
+ headers that may declare mknod(). OS/2 kLIBC declares mknod() in
+ <unistd.h>, not in <sys/stat.h>. */
+#ifdef __KLIBC__
+# include <unistd.h>
+#endif
+
+/* Before doing "#define mkdir rpl_mkdir" below, we need to include all
+ headers that may declare mkdir(). Native Windows platforms declare mkdir
+ in <io.h> and/or <direct.h>, not in <sys/stat.h>. */
+#if defined _WIN32 && ! defined __CYGWIN__
+# include <io.h> /* mingw32, mingw64 */
+# include <direct.h> /* mingw64, MSVC 9 */
+#endif
+
+/* Native Windows platforms declare umask() in <io.h>. */
+#if 0 && (defined _WIN32 && ! defined __CYGWIN__)
+# include <io.h>
+#endif
+
+/* Large File Support on native Windows. */
+#if 0
+# define stat _stati64
+#endif
+
+/* Optionally, override 'struct stat' on native Windows. */
+#if 0
+
+# undef stat
+# if 1
+# define stat rpl_stat
+# else
+ /* Provoke a clear link error if stat() is used as a function and
+ module 'stat' is not in use. */
+# define stat stat_used_without_requesting_gnulib_module_stat
+# endif
+
+# if !GNULIB_defined_struct_stat
+struct stat
+{
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+# if 0
+ uid_t st_uid;
+# else /* uid_t is not defined by default on native Windows. */
+ short st_uid;
+# endif
+# if 0
+ gid_t st_gid;
+# else /* gid_t is not defined by default on native Windows. */
+ short st_gid;
+# endif
+ dev_t st_rdev;
+ off_t st_size;
+# if 0
+ blksize_t st_blksize;
+ blkcnt_t st_blocks;
+# endif
+
+# if 0
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+# else
+ time_t st_atime;
+ time_t st_mtime;
+ time_t st_ctime;
+# endif
+};
+# if 0
+# define st_atime st_atim.tv_sec
+# define st_mtime st_mtim.tv_sec
+# define st_ctime st_ctim.tv_sec
+ /* Indicator, for gnulib internal purposes. */
+# define _GL_WINDOWS_STAT_TIMESPEC 1
+# endif
+# define GNULIB_defined_struct_stat 1
+# endif
+
+/* Other possible values of st_mode. */
+# if 0
+# define _S_IFBLK 0x6000
+# endif
+# if 0
+# define _S_IFLNK 0xA000
+# endif
+# if 0
+# define _S_IFSOCK 0xC000
+# endif
+
+#endif
+
+#ifndef S_IFIFO
+# ifdef _S_IFIFO
+# define S_IFIFO _S_IFIFO
+# endif
+#endif
+
+#ifndef S_IFMT
+# define S_IFMT 0170000
+#endif
+
+#if STAT_MACROS_BROKEN
+# undef S_ISBLK
+# undef S_ISCHR
+# undef S_ISDIR
+# undef S_ISFIFO
+# undef S_ISLNK
+# undef S_ISNAM
+# undef S_ISMPB
+# undef S_ISMPC
+# undef S_ISNWK
+# undef S_ISREG
+# undef S_ISSOCK
+#endif
+
+#ifndef S_ISBLK
+# ifdef S_IFBLK
+# define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
+# else
+# define S_ISBLK(m) 0
+# endif
+#endif
+
+#ifndef S_ISCHR
+# ifdef S_IFCHR
+# define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
+# else
+# define S_ISCHR(m) 0
+# endif
+#endif
+
+#ifndef S_ISDIR
+# ifdef S_IFDIR
+# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+# else
+# define S_ISDIR(m) 0
+# endif
+#endif
+
+#ifndef S_ISDOOR /* Solaris 2.5 and up */
+# define S_ISDOOR(m) 0
+#endif
+
+#ifndef S_ISFIFO
+# ifdef S_IFIFO
+# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
+# else
+# define S_ISFIFO(m) 0
+# endif
+#endif
+
+#ifndef S_ISLNK
+# ifdef S_IFLNK
+# define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
+# else
+# define S_ISLNK(m) 0
+# endif
+#endif
+
+#ifndef S_ISMPB /* V7 */
+# ifdef S_IFMPB
+# define S_ISMPB(m) (((m) & S_IFMT) == S_IFMPB)
+# define S_ISMPC(m) (((m) & S_IFMT) == S_IFMPC)
+# else
+# define S_ISMPB(m) 0
+# define S_ISMPC(m) 0
+# endif
+#endif
+
+#ifndef S_ISMPX /* AIX */
+# define S_ISMPX(m) 0
+#endif
+
+#ifndef S_ISNAM /* Xenix */
+# ifdef S_IFNAM
+# define S_ISNAM(m) (((m) & S_IFMT) == S_IFNAM)
+# else
+# define S_ISNAM(m) 0
+# endif
+#endif
+
+#ifndef S_ISNWK /* HP/UX */
+# ifdef S_IFNWK
+# define S_ISNWK(m) (((m) & S_IFMT) == S_IFNWK)
+# else
+# define S_ISNWK(m) 0
+# endif
+#endif
+
+#ifndef S_ISPORT /* Solaris 10 and up */
+# define S_ISPORT(m) 0
+#endif
+
+#ifndef S_ISREG
+# ifdef S_IFREG
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+# else
+# define S_ISREG(m) 0
+# endif
+#endif
+
+#ifndef S_ISSOCK
+# ifdef S_IFSOCK
+# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
+# else
+# define S_ISSOCK(m) 0
+# endif
+#endif
+
+
+#ifndef S_TYPEISMQ
+# define S_TYPEISMQ(p) 0
+#endif
+
+#ifndef S_TYPEISTMO
+# define S_TYPEISTMO(p) 0
+#endif
+
+
+#ifndef S_TYPEISSEM
+# ifdef S_INSEM
+# define S_TYPEISSEM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSEM)
+# else
+# define S_TYPEISSEM(p) 0
+# endif
+#endif
+
+#ifndef S_TYPEISSHM
+# ifdef S_INSHD
+# define S_TYPEISSHM(p) (S_ISNAM ((p)->st_mode) && (p)->st_rdev == S_INSHD)
+# else
+# define S_TYPEISSHM(p) 0
+# endif
+#endif
+
+/* high performance ("contiguous data") */
+#ifndef S_ISCTG
+# define S_ISCTG(p) 0
+#endif
+
+/* Cray DMF (data migration facility): off line, with data */
+#ifndef S_ISOFD
+# define S_ISOFD(p) 0
+#endif
+
+/* Cray DMF (data migration facility): off line, with no data */
+#ifndef S_ISOFL
+# define S_ISOFL(p) 0
+#endif
+
+/* 4.4BSD whiteout */
+#ifndef S_ISWHT
+# define S_ISWHT(m) 0
+#endif
+
+/* If any of the following are undefined,
+ define them to their de facto standard values. */
+#if !S_ISUID
+# define S_ISUID 04000
+#endif
+#if !S_ISGID
+# define S_ISGID 02000
+#endif
+
+/* S_ISVTX is a common extension to POSIX. */
+#ifndef S_ISVTX
+# define S_ISVTX 01000
+#endif
+
+#if !S_IRUSR && S_IREAD
+# define S_IRUSR S_IREAD
+#endif
+#if !S_IRUSR
+# define S_IRUSR 00400
+#endif
+#if !S_IRGRP
+# define S_IRGRP (S_IRUSR >> 3)
+#endif
+#if !S_IROTH
+# define S_IROTH (S_IRUSR >> 6)
+#endif
+
+#if !S_IWUSR && S_IWRITE
+# define S_IWUSR S_IWRITE
+#endif
+#if !S_IWUSR
+# define S_IWUSR 00200
+#endif
+#if !S_IWGRP
+# define S_IWGRP (S_IWUSR >> 3)
+#endif
+#if !S_IWOTH
+# define S_IWOTH (S_IWUSR >> 6)
+#endif
+
+#if !S_IXUSR && S_IEXEC
+# define S_IXUSR S_IEXEC
+#endif
+#if !S_IXUSR
+# define S_IXUSR 00100
+#endif
+#if !S_IXGRP
+# define S_IXGRP (S_IXUSR >> 3)
+#endif
+#if !S_IXOTH
+# define S_IXOTH (S_IXUSR >> 6)
+#endif
+
+#if !S_IRWXU
+# define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
+#endif
+#if !S_IRWXG
+# define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
+#endif
+#if !S_IRWXO
+# define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
+#endif
+
+/* Although S_IXUGO and S_IRWXUGO are not specified by POSIX and are
+ not implemented in GNU/Linux, some Gnulib-using apps use the macros. */
+#if !S_IXUGO
+# define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
+#endif
+#ifndef S_IRWXUGO
+# define S_IRWXUGO (S_IRWXU | S_IRWXG | S_IRWXO)
+#endif
+
+/* Macros for futimens and utimensat. */
+#ifndef UTIME_NOW
+# define UTIME_NOW (-1)
+# define UTIME_OMIT (-2)
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef chmod
+# define chmod rpl_chmod
+# endif
+_GL_FUNCDECL_RPL (chmod, int, (const char *filename, mode_t mode)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (chmod, int, (const char *filename, mode_t mode));
+# elif defined _WIN32 && !defined __CYGWIN__
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef chmod
+# define chmod _chmod
+# endif
+/* Need to cast, because in mingw the last argument is 'int mode'. */
+_GL_CXXALIAS_MDA_CAST (chmod, int, (const char *filename, mode_t mode));
+# else
+_GL_CXXALIAS_SYS (chmod, int, (const char *filename, mode_t mode));
+# endif
+_GL_CXXALIASWARN (chmod);
+#elif defined GNULIB_POSIXCHECK
+# undef chmod
+# if HAVE_RAW_DECL_CHMOD
+_GL_WARN_ON_USE (chmod, "chmod has portability problems - "
+ "use gnulib module chmod for portability");
+# endif
+#elif 1
+/* On native Windows, map 'chmod' to '_chmod', so that -loldnames is not
+ required. In C++ with GNULIB_NAMESPACE, avoid differences between
+ platforms by defining GNULIB_NAMESPACE::chmod always. */
+# if defined _WIN32 && !defined __CYGWIN__
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef chmod
+# define chmod _chmod
+# endif
+/* Need to cast, because in mingw the last argument is 'int mode'. */
+_GL_CXXALIAS_MDA_CAST (chmod, int, (const char *filename, mode_t mode));
+# else
+_GL_CXXALIAS_SYS (chmod, int, (const char *filename, mode_t mode));
+# endif
+_GL_CXXALIASWARN (chmod);
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fchmodat
+# define fchmodat rpl_fchmodat
+# endif
+_GL_FUNCDECL_RPL (fchmodat, int,
+ (int fd, char const *file, mode_t mode, int flag)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (fchmodat, int,
+ (int fd, char const *file, mode_t mode, int flag));
+# else
+# if !1
+_GL_FUNCDECL_SYS (fchmodat, int,
+ (int fd, char const *file, mode_t mode, int flag)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (fchmodat, int,
+ (int fd, char const *file, mode_t mode, int flag));
+# endif
+_GL_CXXALIASWARN (fchmodat);
+#elif defined GNULIB_POSIXCHECK
+# undef fchmodat
+# if HAVE_RAW_DECL_FCHMODAT
+_GL_WARN_ON_USE (fchmodat, "fchmodat is not portable - "
+ "use gnulib module openat for portability");
+# endif
+#endif
+
+
+#if 1
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fstat
+# define fstat rpl_fstat
+# endif
+_GL_FUNCDECL_RPL (fstat, int, (int fd, struct stat *buf) _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (fstat, int, (int fd, struct stat *buf));
+# else
+_GL_CXXALIAS_SYS (fstat, int, (int fd, struct stat *buf));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (fstat);
+# endif
+#elif 0
+# undef fstat
+# define fstat fstat_used_without_requesting_gnulib_module_fstat
+#elif 0
+/* Above, we define stat to _stati64. */
+# define fstat _fstati64
+#elif defined GNULIB_POSIXCHECK
+# undef fstat
+# if HAVE_RAW_DECL_FSTAT
+_GL_WARN_ON_USE (fstat, "fstat has portability problems - "
+ "use gnulib module fstat for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef fstatat
+# define fstatat rpl_fstatat
+# endif
+_GL_FUNCDECL_RPL (fstatat, int,
+ (int fd, char const *restrict name, struct stat *restrict st,
+ int flags)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (fstatat, int,
+ (int fd, char const *restrict name, struct stat *restrict st,
+ int flags));
+# else
+# if !1
+_GL_FUNCDECL_SYS (fstatat, int,
+ (int fd, char const *restrict name, struct stat *restrict st,
+ int flags)
+ _GL_ARG_NONNULL ((2, 3)));
+# endif
+_GL_CXXALIAS_SYS (fstatat, int,
+ (int fd, char const *restrict name, struct stat *restrict st,
+ int flags));
+# endif
+_GL_CXXALIASWARN (fstatat);
+#elif 0
+# undef fstatat
+# define fstatat fstatat_used_without_requesting_gnulib_module_fstatat
+#elif defined GNULIB_POSIXCHECK
+# undef fstatat
+# if HAVE_RAW_DECL_FSTATAT
+_GL_WARN_ON_USE (fstatat, "fstatat is not portable - "
+ "use gnulib module openat for portability");
+# endif
+#endif
+
+
+#if 0
+/* Use the rpl_ prefix also on Solaris <= 9, because on Solaris 9 our futimens
+ implementation relies on futimesat, which on Solaris 10 makes an invocation
+ to futimens that is meant to invoke the libc's futimens(), not gnulib's
+ futimens(). */
+# if 0 || (!1 && defined __sun)
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef futimens
+# define futimens rpl_futimens
+# endif
+_GL_FUNCDECL_RPL (futimens, int, (int fd, struct timespec const times[2]));
+_GL_CXXALIAS_RPL (futimens, int, (int fd, struct timespec const times[2]));
+# else
+# if !1
+_GL_FUNCDECL_SYS (futimens, int, (int fd, struct timespec const times[2]));
+# endif
+_GL_CXXALIAS_SYS (futimens, int, (int fd, struct timespec const times[2]));
+# endif
+# if 1
+_GL_CXXALIASWARN (futimens);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef futimens
+# if HAVE_RAW_DECL_FUTIMENS
+_GL_WARN_ON_USE (futimens, "futimens is not portable - "
+ "use gnulib module futimens for portability");
+# endif
+#endif
+
+
+#if 0
+# if !1
+_GL_FUNCDECL_SYS (getumask, mode_t, (void));
+# endif
+_GL_CXXALIAS_SYS (getumask, mode_t, (void));
+# if 1
+_GL_CXXALIASWARN (getumask);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef getumask
+# if HAVE_RAW_DECL_GETUMASK
+_GL_WARN_ON_USE (getumask, "getumask is not portable - "
+ "use gnulib module getumask for portability");
+# endif
+#endif
+
+
+#if 0
+/* Change the mode of FILENAME to MODE, without dereferencing it if FILENAME
+ denotes a symbolic link. */
+# if !1 || defined __hpux
+_GL_FUNCDECL_SYS (lchmod, int, (const char *filename, mode_t mode)
+ _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (lchmod, int, (const char *filename, mode_t mode));
+_GL_CXXALIASWARN (lchmod);
+#elif defined GNULIB_POSIXCHECK
+# undef lchmod
+# if HAVE_RAW_DECL_LCHMOD
+_GL_WARN_ON_USE (lchmod, "lchmod is unportable - "
+ "use gnulib module lchmod for portability");
+# endif
+#endif
+
+
+#if 0
+# if ! 1
+/* mingw does not support symlinks, therefore it does not have lstat. But
+ without links, stat does just fine. */
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define lstat stat
+# endif
+_GL_CXXALIAS_RPL_1 (lstat, stat, int,
+ (const char *restrict name, struct stat *restrict buf));
+# elif 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef lstat
+# define lstat rpl_lstat
+# endif
+_GL_FUNCDECL_RPL (lstat, int,
+ (const char *restrict name, struct stat *restrict buf)
+ _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (lstat, int,
+ (const char *restrict name, struct stat *restrict buf));
+# else
+_GL_CXXALIAS_SYS (lstat, int,
+ (const char *restrict name, struct stat *restrict buf));
+# endif
+# if 1
+_GL_CXXALIASWARN (lstat);
+# endif
+#elif 0
+# undef lstat
+# define lstat lstat_used_without_requesting_gnulib_module_lstat
+#elif defined GNULIB_POSIXCHECK
+# undef lstat
+# if HAVE_RAW_DECL_LSTAT
+_GL_WARN_ON_USE (lstat, "lstat is unportable - "
+ "use gnulib module lstat for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mkdir
+# define mkdir rpl_mkdir
+# endif
+_GL_FUNCDECL_RPL (mkdir, int, (char const *name, mode_t mode)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (mkdir, int, (char const *name, mode_t mode));
+# elif defined _WIN32 && !defined __CYGWIN__
+/* mingw's _mkdir() function has 1 argument, but we pass 2 arguments.
+ Additionally, it declares _mkdir (and depending on compile flags, an
+ alias mkdir), only in the nonstandard includes <direct.h> and <io.h>,
+ which are included above. */
+# if !GNULIB_defined_rpl_mkdir
+static int
+rpl_mkdir (char const *name, mode_t mode)
+{
+ return _mkdir (name);
+}
+# define GNULIB_defined_rpl_mkdir 1
+# endif
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mkdir
+# define mkdir rpl_mkdir
+# endif
+_GL_CXXALIAS_RPL (mkdir, int, (char const *name, mode_t mode));
+# else
+_GL_CXXALIAS_SYS (mkdir, int, (char const *name, mode_t mode));
+# endif
+_GL_CXXALIASWARN (mkdir);
+#elif defined GNULIB_POSIXCHECK
+# undef mkdir
+# if HAVE_RAW_DECL_MKDIR
+_GL_WARN_ON_USE (mkdir, "mkdir does not always support two parameters - "
+ "use gnulib module mkdir for portability");
+# endif
+#elif 1
+/* On native Windows, map 'mkdir' to '_mkdir', so that -loldnames is not
+ required. In C++ with GNULIB_NAMESPACE, avoid differences between
+ platforms by defining GNULIB_NAMESPACE::mkdir always. */
+# if defined _WIN32 && !defined __CYGWIN__
+# if !GNULIB_defined_rpl_mkdir
+static int
+rpl_mkdir (char const *name, mode_t mode)
+{
+ return _mkdir (name);
+}
+# define GNULIB_defined_rpl_mkdir 1
+# endif
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mkdir
+# define mkdir rpl_mkdir
+# endif
+_GL_CXXALIAS_RPL (mkdir, int, (char const *name, mode_t mode));
+# else
+_GL_CXXALIAS_SYS (mkdir, int, (char const *name, mode_t mode));
+# endif
+_GL_CXXALIASWARN (mkdir);
+#endif
+
+
+#if 0
+# if !1
+_GL_FUNCDECL_SYS (mkdirat, int, (int fd, char const *file, mode_t mode)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (mkdirat, int, (int fd, char const *file, mode_t mode));
+_GL_CXXALIASWARN (mkdirat);
+#elif defined GNULIB_POSIXCHECK
+# undef mkdirat
+# if HAVE_RAW_DECL_MKDIRAT
+_GL_WARN_ON_USE (mkdirat, "mkdirat is not portable - "
+ "use gnulib module openat for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mkfifo
+# define mkfifo rpl_mkfifo
+# endif
+_GL_FUNCDECL_RPL (mkfifo, int, (char const *file, mode_t mode)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (mkfifo, int, (char const *file, mode_t mode));
+# else
+# if !1
+_GL_FUNCDECL_SYS (mkfifo, int, (char const *file, mode_t mode)
+ _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (mkfifo, int, (char const *file, mode_t mode));
+# endif
+_GL_CXXALIASWARN (mkfifo);
+#elif defined GNULIB_POSIXCHECK
+# undef mkfifo
+# if HAVE_RAW_DECL_MKFIFO
+_GL_WARN_ON_USE (mkfifo, "mkfifo is not portable - "
+ "use gnulib module mkfifo for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mkfifoat
+# define mkfifoat rpl_mkfifoat
+# endif
+_GL_FUNCDECL_RPL (mkfifoat, int, (int fd, char const *file, mode_t mode)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (mkfifoat, int, (int fd, char const *file, mode_t mode));
+# else
+# if !1
+_GL_FUNCDECL_SYS (mkfifoat, int, (int fd, char const *file, mode_t mode)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (mkfifoat, int, (int fd, char const *file, mode_t mode));
+# endif
+_GL_CXXALIASWARN (mkfifoat);
+#elif defined GNULIB_POSIXCHECK
+# undef mkfifoat
+# if HAVE_RAW_DECL_MKFIFOAT
+_GL_WARN_ON_USE (mkfifoat, "mkfifoat is not portable - "
+ "use gnulib module mkfifoat for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mknod
+# define mknod rpl_mknod
+# endif
+_GL_FUNCDECL_RPL (mknod, int, (char const *file, mode_t mode, dev_t dev)
+ _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (mknod, int, (char const *file, mode_t mode, dev_t dev));
+# else
+# if !1
+_GL_FUNCDECL_SYS (mknod, int, (char const *file, mode_t mode, dev_t dev)
+ _GL_ARG_NONNULL ((1)));
+# endif
+/* Need to cast, because on OSF/1 5.1, the third parameter is '...'. */
+_GL_CXXALIAS_SYS_CAST (mknod, int, (char const *file, mode_t mode, dev_t dev));
+# endif
+_GL_CXXALIASWARN (mknod);
+#elif defined GNULIB_POSIXCHECK
+# undef mknod
+# if HAVE_RAW_DECL_MKNOD
+_GL_WARN_ON_USE (mknod, "mknod is not portable - "
+ "use gnulib module mknod for portability");
+# endif
+#endif
+
+
+#if 0
+# if 0
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef mknodat
+# define mknodat rpl_mknodat
+# endif
+_GL_FUNCDECL_RPL (mknodat, int,
+ (int fd, char const *file, mode_t mode, dev_t dev)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (mknodat, int,
+ (int fd, char const *file, mode_t mode, dev_t dev));
+# else
+# if !1
+_GL_FUNCDECL_SYS (mknodat, int,
+ (int fd, char const *file, mode_t mode, dev_t dev)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (mknodat, int,
+ (int fd, char const *file, mode_t mode, dev_t dev));
+# endif
+_GL_CXXALIASWARN (mknodat);
+#elif defined GNULIB_POSIXCHECK
+# undef mknodat
+# if HAVE_RAW_DECL_MKNODAT
+_GL_WARN_ON_USE (mknodat, "mknodat is not portable - "
+ "use gnulib module mkfifoat for portability");
+# endif
+#endif
+
+
+#if 1
+# if 0
+# if !0
+ /* We can't use the object-like #define stat rpl_stat, because of
+ struct stat. This means that rpl_stat will not be used if the user
+ does (stat)(a,b). Oh well. */
+# if defined _AIX && defined stat && defined _LARGE_FILES
+ /* With _LARGE_FILES defined, AIX (only) defines stat to stat64,
+ so we have to replace stat64() instead of stat(). */
+# undef stat64
+# define stat64(name, st) rpl_stat (name, st)
+# elif 0
+ /* Above, we define stat to _stati64. */
+# if defined __MINGW32__ && defined _stati64
+# ifndef _USE_32BIT_TIME_T
+ /* The system headers define _stati64 to _stat64. */
+# undef _stat64
+# define _stat64(name, st) rpl_stat (name, st)
+# endif
+# elif defined _MSC_VER && defined _stati64
+# ifdef _USE_32BIT_TIME_T
+ /* The system headers define _stati64 to _stat32i64. */
+# undef _stat32i64
+# define _stat32i64(name, st) rpl_stat (name, st)
+# else
+ /* The system headers define _stati64 to _stat64. */
+# undef _stat64
+# define _stat64(name, st) rpl_stat (name, st)
+# endif
+# else
+# undef _stati64
+# define _stati64(name, st) rpl_stat (name, st)
+# endif
+# elif defined __MINGW32__ && defined stat
+# ifdef _USE_32BIT_TIME_T
+ /* The system headers define stat to _stat32i64. */
+# undef _stat32i64
+# define _stat32i64(name, st) rpl_stat (name, st)
+# else
+ /* The system headers define stat to _stat64. */
+# undef _stat64
+# define _stat64(name, st) rpl_stat (name, st)
+# endif
+# elif defined _MSC_VER && defined stat
+# ifdef _USE_32BIT_TIME_T
+ /* The system headers define stat to _stat32. */
+# undef _stat32
+# define _stat32(name, st) rpl_stat (name, st)
+# else
+ /* The system headers define stat to _stat64i32. */
+# undef _stat64i32
+# define _stat64i32(name, st) rpl_stat (name, st)
+# endif
+# else /* !(_AIX || __MINGW32__ || _MSC_VER) */
+# undef stat
+# define stat(name, st) rpl_stat (name, st)
+# endif /* !_LARGE_FILES */
+# endif /* !0 */
+_GL_EXTERN_C int stat (const char *restrict name, struct stat *restrict buf)
+ _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif 0
+/* see above:
+ #define stat stat_used_without_requesting_gnulib_module_stat
+ */
+#elif defined GNULIB_POSIXCHECK
+# undef stat
+# if HAVE_RAW_DECL_STAT
+_GL_WARN_ON_USE (stat, "stat is unportable - "
+ "use gnulib module stat for portability");
+# endif
+#endif
+
+
+#if 1
+/* On native Windows, map 'umask' to '_umask', so that -loldnames is not
+ required. In C++ with GNULIB_NAMESPACE, avoid differences between
+ platforms by defining GNULIB_NAMESPACE::umask always. */
+# if defined _WIN32 && !defined __CYGWIN__
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef umask
+# define umask _umask
+# endif
+/* Need to cast, because in mingw the last argument is 'int mode'. */
+_GL_CXXALIAS_MDA_CAST (umask, mode_t, (mode_t mask));
+# else
+_GL_CXXALIAS_SYS (umask, mode_t, (mode_t mask));
+# endif
+_GL_CXXALIASWARN (umask);
+#endif
+
+
+#if 0
+/* Use the rpl_ prefix also on Solaris <= 9, because on Solaris 9 our utimensat
+ implementation relies on futimesat, which on Solaris 10 makes an invocation
+ to utimensat that is meant to invoke the libc's utimensat(), not gnulib's
+ utimensat(). */
+# if 0 || (!1 && defined __sun)
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef utimensat
+# define utimensat rpl_utimensat
+# endif
+_GL_FUNCDECL_RPL (utimensat, int, (int fd, char const *name,
+ struct timespec const times[2], int flag)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (utimensat, int, (int fd, char const *name,
+ struct timespec const times[2], int flag));
+# else
+# if !1
+_GL_FUNCDECL_SYS (utimensat, int, (int fd, char const *name,
+ struct timespec const times[2], int flag)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (utimensat, int, (int fd, char const *name,
+ struct timespec const times[2], int flag));
+# endif
+# if 1
+_GL_CXXALIASWARN (utimensat);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef utimensat
+# if HAVE_RAW_DECL_UTIMENSAT
+_GL_WARN_ON_USE (utimensat, "utimensat is not portable - "
+ "use gnulib module utimensat for portability");
+# endif
+#endif
+
+
+#endif /* _GL_SYS_STAT_H */
+#endif /* _GL_SYS_STAT_H */
+#endif
diff --git a/gl/sys/types.h b/gl/sys/types.h
new file mode 100644
index 0000000..d720b9d
--- /dev/null
+++ b/gl/sys/types.h
@@ -0,0 +1,107 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Provide a more complete sys/types.h.
+
+ Copyright (C) 2011-2022 Free Software Foundation, Inc.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+#if __GNUC__ >= 3
+#pragma GCC system_header
+#endif
+
+
+#if defined _WIN32 && !defined __CYGWIN__ \
+ && (defined __need_off_t || defined __need___off64_t \
+ || defined __need_ssize_t || defined __need_time_t)
+
+/* Special invocation convention inside mingw header files. */
+
+#include_next <sys/types.h>
+
+#else
+/* Normal invocation convention. */
+
+#ifndef _GL_SYS_TYPES_H
+
+/* The include_next requires a split double-inclusion guard. */
+# define _GL_INCLUDING_SYS_TYPES_H
+#include_next <sys/types.h>
+# undef _GL_INCLUDING_SYS_TYPES_H
+
+#ifndef _GL_SYS_TYPES_H
+#define _GL_SYS_TYPES_H
+
+/* Override off_t if Large File Support is requested on native Windows. */
+#if 0
+/* Same as int64_t in <stdint.h>. */
+# if defined _MSC_VER
+# define off_t __int64
+# else
+# define off_t long long int
+# endif
+/* Indicator, for gnulib internal purposes. */
+# define _GL_WINDOWS_64_BIT_OFF_T 1
+#endif
+
+/* Override dev_t and ino_t if distinguishable inodes support is requested
+ on native Windows. */
+#if 0
+
+# if 0 == 2
+/* Experimental, not useful in Windows 10. */
+
+/* Define dev_t to a 64-bit type. */
+# if !defined GNULIB_defined_dev_t
+typedef unsigned long long int rpl_dev_t;
+# undef dev_t
+# define dev_t rpl_dev_t
+# define GNULIB_defined_dev_t 1
+# endif
+
+/* Define ino_t to a 128-bit type. */
+# if !defined GNULIB_defined_ino_t
+/* MSVC does not have a 128-bit integer type.
+ GCC has a 128-bit integer type __int128, but only on 64-bit targets. */
+typedef struct { unsigned long long int _gl_ino[2]; } rpl_ino_t;
+# undef ino_t
+# define ino_t rpl_ino_t
+# define GNULIB_defined_ino_t 1
+# endif
+
+# else /* 0 == 1 */
+
+/* Define ino_t to a 64-bit type. */
+# if !defined GNULIB_defined_ino_t
+typedef unsigned long long int rpl_ino_t;
+# undef ino_t
+# define ino_t rpl_ino_t
+# define GNULIB_defined_ino_t 1
+# endif
+
+# endif
+
+/* Indicator, for gnulib internal purposes. */
+# define _GL_WINDOWS_STAT_INODES 0
+
+#endif
+
+/* MSVC 9 defines size_t in <stddef.h>, not in <sys/types.h>. */
+/* But avoid namespace pollution on glibc systems. */
+#if (defined _WIN32 && ! defined __CYGWIN__) && ! defined __GLIBC__
+# include <stddef.h>
+#endif
+
+#endif /* _GL_SYS_TYPES_H */
+#endif /* _GL_SYS_TYPES_H */
+#endif /* __need_XXX */
diff --git a/gl/sys/uio.h b/gl/sys/uio.h
new file mode 100644
index 0000000..21280cb
--- /dev/null
+++ b/gl/sys/uio.h
@@ -0,0 +1,64 @@
+/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
+/* Substitute for <sys/uio.h>.
+ Copyright (C) 2011-2022 Free Software Foundation, Inc.
+
+ This file is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ This file 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 Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+# if __GNUC__ >= 3
+#pragma GCC system_header
+# endif
+
+
+#ifndef _GL_SYS_UIO_H
+
+#if 1
+
+/* On OpenBSD 4.4, <sys/uio.h> assumes prior inclusion of <sys/types.h>. */
+# include <sys/types.h>
+
+/* The include_next requires a split double-inclusion guard. */
+# include_next <sys/uio.h>
+
+#endif
+
+#ifndef _GL_SYS_UIO_H
+#define _GL_SYS_UIO_H
+
+#if !1
+/* A platform that lacks <sys/uio.h>. */
+/* Get 'size_t' and 'ssize_t'. */
+# include <sys/types.h>
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+# if !GNULIB_defined_struct_iovec
+/* All known platforms that lack <sys/uio.h> also lack any declaration
+ of struct iovec in any other header. */
+struct iovec {
+ void *iov_base;
+ size_t iov_len;
+};
+# define GNULIB_defined_struct_iovec 1
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif
+
+#endif /* _GL_SYS_UIO_H */
+#endif /* _GL_SYS_UIO_H */
diff --git a/gl/warn-on-use.h b/gl/warn-on-use.h
new file mode 100644
index 0000000..94f5b92
--- /dev/null
+++ b/gl/warn-on-use.h
@@ -0,0 +1,149 @@
+/* A C macro for emitting warnings if a function is used.
+ Copyright (C) 2010-2022 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License, 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
+ for FUNCTION which will then trigger a compiler warning containing
+ the text of "literal string" anywhere that function is called, if
+ supported by the compiler. If the compiler does not support this
+ feature, the macro expands to an unused extern declaration.
+
+ _GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
+ attribute used in _GL_WARN_ON_USE. If the compiler does not support
+ this feature, it expands to empty.
+
+ These macros are useful for marking a function as a potential
+ portability trap, with the intent that "literal string" include
+ instructions on the replacement function that should be used
+ instead.
+ _GL_WARN_ON_USE is for functions with 'extern' linkage.
+ _GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
+ linkage.
+
+ However, one of the reasons that a function is a portability trap is
+ if it has the wrong signature. Declaring FUNCTION with a different
+ signature in C is a compilation error, so this macro must use the
+ same type as any existing declaration so that programs that avoid
+ the problematic FUNCTION do not fail to compile merely because they
+ included a header that poisoned the function. But this implies that
+ _GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
+ have a declaration. Use of this macro implies that there must not
+ be any other macro hiding the declaration of FUNCTION; but
+ undefining FUNCTION first is part of the poisoning process anyway
+ (although for symbols that are provided only via a macro, the result
+ is a compilation error rather than a warning containing
+ "literal string"). Also note that in C++, it is only safe to use if
+ FUNCTION has no overloads.
+
+ For an example, it is possible to poison 'getline' by:
+ - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
+ [getline]) in configure.ac, which potentially defines
+ HAVE_RAW_DECL_GETLINE
+ - adding this code to a header that wraps the system <stdio.h>:
+ #undef getline
+ #if HAVE_RAW_DECL_GETLINE
+ _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
+ "not universally present; use the gnulib module getline");
+ #endif
+
+ It is not possible to directly poison global variables. But it is
+ possible to write a wrapper accessor function, and poison that
+ (less common usage, like &environ, will cause a compilation error
+ rather than issue the nice warning, but the end result of informing
+ the developer about their portability problem is still achieved):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ rpl_environ (void) { return &environ; }
+ _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ or better (avoiding contradictory use of 'static' and 'extern'):
+ #if HAVE_RAW_DECL_ENVIRON
+ static char ***
+ _GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
+ rpl_environ (void) { return &environ; }
+ # undef environ
+ # define environ (*rpl_environ ())
+ #endif
+ */
+#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) \
+_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__warning__ (message)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
+ __attribute__ ((__diagnose_if__ (1, message, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C __typeof__ (function) function
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE(function, message) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# define _GL_WARN_ON_USE_ATTRIBUTE(message)
+# endif
+#endif
+
+/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
+ is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode 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 !defined __cplusplus
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+ _GL_WARN_ON_USE (function, msg)
+# else
+# 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_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes \
+ __attribute__ ((__warning__ (msg)))
+# elif __clang_major__ >= 4
+/* Another compiler attribute is available in clang. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_clang function parameters_and_attributes \
+ __attribute__ ((__diagnose_if__ (1, msg, "warning")))
+# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
+/* Verify the existence of the function. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+extern rettype_gcc function parameters_and_attributes
+# else /* Unsupported. */
+# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
+_GL_WARN_EXTERN_C int _gl_warn_on_use
+# endif
+# 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
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