Sync with the latest Gnulib code (1a268176f)

1 files changed, 666 insertions, 74 deletions

diff --git a/gl/stdlib.in.h b/gl/stdlib.in.h
index c9552480..0855112d 100644
--- a/gl/stdlib.in.h
+++ b/gl/stdlib.in.h
@@ -1,19 +1,19 @@
 /* A GNU-like <stdlib.h>.
 
-   Copyright (C) 1995, 2001-2004, 2006-2013 Free Software Foundation, Inc.
+   Copyright (C) 1995, 2001-2004, 2006-2021 Free Software Foundation, Inc.
 
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
+   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 program is distributed in the hope that it will be useful,
+   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 General Public License for more details.
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+   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_SYSTEM_HEADER@
@@ -47,11 +47,14 @@
 
 /* Solaris declares getloadavg() in <sys/loadavg.h>.  */
 #if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
+/* OpenIndiana has a bug: <sys/time.h> must be included before
+   <sys/loadavg.h>.  */
+# include <sys/time.h>
 # include <sys/loadavg.h>
 #endif
 
-/* Native Windows platforms declare mktemp() in <io.h>.  */
-#if 0 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+/* Native Windows platforms declare _mktemp() in <io.h>.  */
+#if defined _WIN32 && !defined __CYGWIN__
 # include <io.h>
 #endif
 
@@ -87,20 +90,52 @@ struct random_data
 # endif
 #endif
 
-#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_MKOSTEMP@ || @GNULIB_MKOSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !(defined _WIN32 && ! defined __CYGWIN__)
 /* On Mac OS X 10.3, only <unistd.h> declares mkstemp.  */
 /* On Mac OS X 10.5, only <unistd.h> declares mkstemps.  */
+/* On Mac OS X 10.13, only <unistd.h> declares mkostemp and mkostemps.  */
 /* On Cygwin 1.7.1, only <unistd.h> declares getsubopt.  */
 /* But avoid namespace pollution on glibc systems and native Windows.  */
 # include <unistd.h>
 #endif
 
+/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
+   that can be freed by passing them as the Ith argument to the
+   function F.  */
+#ifndef _GL_ATTRIBUTE_DEALLOC
+# if __GNUC__ >= 11
+#  define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
+# else
+#  define _GL_ATTRIBUTE_DEALLOC(f, i)
+# endif
+#endif
+
+/* _GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that
+   can be freed via 'free'; it can be used only after declaring 'free'.  */
+/* Applies to: functions.  Cannot be used on inline functions.  */
+#ifndef _GL_ATTRIBUTE_DEALLOC_FREE
+# define _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_DEALLOC (free, 1)
+#endif
+
+/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
+   allocated memory.  */
+/* Applies to: functions.  */
+#ifndef _GL_ATTRIBUTE_MALLOC
+# if __GNUC__ >= 3 || defined __clang__
+#  define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+# else
+#  define _GL_ATTRIBUTE_MALLOC
+# endif
+#endif
+
 /* The __attribute__ feature is available in gcc versions 2.5 and later.
    The attribute __pure__ was added in gcc 2.96.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
-# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
-#else
-# define _GL_ATTRIBUTE_PURE /* empty */
+#ifndef _GL_ATTRIBUTE_PURE
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) || defined __clang__
+#  define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
+# else
+#  define _GL_ATTRIBUTE_PURE /* empty */
+# endif
 #endif
 
 /* The definition of _Noreturn is copied here.  */
@@ -143,6 +178,69 @@ _GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
 #endif
 
 
+#if @GNULIB_FREE_POSIX@
+# if @REPLACE_FREE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef free
+#   define free rpl_free
+#  endif
+_GL_FUNCDECL_RPL (free, void, (void *ptr));
+_GL_CXXALIAS_RPL (free, void, (void *ptr));
+# else
+_GL_CXXALIAS_SYS (free, void, (void *ptr));
+# endif
+# if __GLIBC__ >= 2
+_GL_CXXALIASWARN (free);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef free
+/* Assume free is always declared.  */
+_GL_WARN_ON_USE (free, "free is not future POSIX compliant everywhere - "
+                 "use gnulib module free for portability");
+#endif
+
+
+/* Allocate memory with indefinite extent and specified alignment.  */
+#if @GNULIB_ALIGNED_ALLOC@
+# if @REPLACE_ALIGNED_ALLOC@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef aligned_alloc
+#   define aligned_alloc rpl_aligned_alloc
+#  endif
+_GL_FUNCDECL_RPL (aligned_alloc, void *,
+                  (size_t alignment, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+_GL_CXXALIAS_RPL (aligned_alloc, void *, (size_t alignment, size_t size));
+# else
+#  if @HAVE_ALIGNED_ALLOC@
+#   if __GNUC__ >= 11
+/* For -Wmismatched-dealloc: Associate aligned_alloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (aligned_alloc, void *,
+                  (size_t alignment, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+#   endif
+_GL_CXXALIAS_SYS (aligned_alloc, void *, (size_t alignment, size_t size));
+#  endif
+# endif
+# if @HAVE_ALIGNED_ALLOC@
+_GL_CXXALIASWARN (aligned_alloc);
+# endif
+#else
+# if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined aligned_alloc
+/* For -Wmismatched-dealloc: Associate aligned_alloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (aligned_alloc, void *,
+                  (size_t alignment, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+# endif
+# if defined GNULIB_POSIXCHECK
+#  undef aligned_alloc
+#  if HAVE_RAW_DECL_ALIGNED_ALLOC
+_GL_WARN_ON_USE (aligned_alloc, "aligned_alloc is not portable - "
+                 "use gnulib module aligned_alloc for portability");
+#  endif
+# endif
+#endif
+
 #if @GNULIB_ATOLL@
 /* Parse a signed decimal integer.
    Returns the value of the integer.  Errors are not detected.  */
@@ -167,17 +265,35 @@ _GL_WARN_ON_USE (atoll, "atoll is unportable - "
 #   undef calloc
 #   define calloc rpl_calloc
 #  endif
-_GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
+_GL_FUNCDECL_RPL (calloc, void *,
+                  (size_t nmemb, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
 _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
 # else
+#  if __GNUC__ >= 11
+/* For -Wmismatched-dealloc: Associate calloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (calloc, void *,
+                  (size_t nmemb, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+#  endif
 _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (calloc);
-#elif defined GNULIB_POSIXCHECK
-# undef calloc
+# endif
+#else
+# if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined calloc
+/* For -Wmismatched-dealloc: Associate calloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (calloc, void *,
+                  (size_t nmemb, size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+# endif
+# if defined GNULIB_POSIXCHECK
+#  undef calloc
 /* Assume calloc is always declared.  */
 _GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
                  "use gnulib module calloc-posix for portability");
+# endif
 #endif
 
 #if @GNULIB_CANONICALIZE_FILE_NAME@
@@ -185,23 +301,108 @@ _GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define canonicalize_file_name rpl_canonicalize_file_name
 #  endif
-_GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
-                                                  _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_RPL (canonicalize_file_name, char *,
+                  (const char *name)
+                  _GL_ARG_NONNULL ((1))
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
 _GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
 # else
-#  if !@HAVE_CANONICALIZE_FILE_NAME@
-_GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
-                                                  _GL_ARG_NONNULL ((1)));
+#  if !@HAVE_CANONICALIZE_FILE_NAME@ || __GNUC__ >= 11
+_GL_FUNCDECL_SYS (canonicalize_file_name, char *,
+                  (const char *name)
+                  _GL_ARG_NONNULL ((1))
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
 #  endif
 _GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
 # endif
+# ifndef GNULIB_defined_canonicalize_file_name
+#  define GNULIB_defined_canonicalize_file_name \
+     (!@HAVE_CANONICALIZE_FILE_NAME@ || @REPLACE_CANONICALIZE_FILE_NAME@)
+# endif
 _GL_CXXALIASWARN (canonicalize_file_name);
-#elif defined GNULIB_POSIXCHECK
-# undef canonicalize_file_name
-# if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
+#else
+# if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined canonicalize_file_name
+/* For -Wmismatched-dealloc: Associate canonicalize_file_name with free or
+   rpl_free.  */
+_GL_FUNCDECL_SYS (canonicalize_file_name, char *,
+                  (const char *name)
+                  _GL_ARG_NONNULL ((1))
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+# endif
+# if defined GNULIB_POSIXCHECK
+#  undef canonicalize_file_name
+#  if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
 _GL_WARN_ON_USE (canonicalize_file_name,
                  "canonicalize_file_name is unportable - "
                  "use gnulib module canonicalize-lgpl for portability");
+#  endif
+# endif
+#endif
+
+#if @GNULIB_MDA_ECVT@
+/* On native Windows, map 'ecvt' to '_ecvt', so that -loldnames is not
+   required.  In C++ with GNULIB_NAMESPACE, avoid differences between
+   platforms by defining GNULIB_NAMESPACE::ecvt on all platforms that have
+   it.  */
+# if defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef ecvt
+#   define ecvt _ecvt
+#  endif
+_GL_CXXALIAS_MDA (ecvt, char *,
+                  (double number, int ndigits, int *decptp, int *signp));
+# else
+#  if @HAVE_DECL_ECVT@
+_GL_CXXALIAS_SYS (ecvt, char *,
+                  (double number, int ndigits, int *decptp, int *signp));
+#  endif
+# endif
+# if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_ECVT@
+_GL_CXXALIASWARN (ecvt);
+# endif
+#endif
+
+#if @GNULIB_MDA_FCVT@
+/* On native Windows, map 'fcvt' to '_fcvt', so that -loldnames is not
+   required.  In C++ with GNULIB_NAMESPACE, avoid differences between
+   platforms by defining GNULIB_NAMESPACE::fcvt on all platforms that have
+   it.  */
+# if defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef fcvt
+#   define fcvt _fcvt
+#  endif
+_GL_CXXALIAS_MDA (fcvt, char *,
+                  (double number, int ndigits, int *decptp, int *signp));
+# else
+#  if @HAVE_DECL_FCVT@
+_GL_CXXALIAS_SYS (fcvt, char *,
+                  (double number, int ndigits, int *decptp, int *signp));
+#  endif
+# endif
+# if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCVT@
+_GL_CXXALIASWARN (fcvt);
+# endif
+#endif
+
+#if @GNULIB_MDA_GCVT@
+/* On native Windows, map 'gcvt' to '_gcvt', so that -loldnames is not
+   required.  In C++ with GNULIB_NAMESPACE, avoid differences between
+   platforms by defining GNULIB_NAMESPACE::gcvt on all platforms that have
+   it.  */
+# if defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef gcvt
+#   define gcvt _gcvt
+#  endif
+_GL_CXXALIAS_MDA (gcvt, char *, (double number, int ndigits, char *buf));
+# else
+#  if @HAVE_DECL_GCVT@
+_GL_CXXALIAS_SYS (gcvt, char *, (double number, int ndigits, char *buf));
+#  endif
+# endif
+# if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_GCVT@
+_GL_CXXALIASWARN (gcvt);
 # endif
 #endif
 
@@ -234,8 +435,8 @@ _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
        element (or NULL if it doesn't contain an "=" sign),
      - It returns the index of the "token" in the given array of tokens.
    Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
-   For more details see the POSIX:2001 specification.
-   http://www.opengroup.org/susv3xsh/getsubopt.html */
+   For more details see the POSIX specification.
+   https://pubs.opengroup.org/onlinepubs/9699919799/functions/getsubopt.html */
 # if !@HAVE_GETSUBOPT@
 _GL_FUNCDECL_SYS (getsubopt, int,
                   (char **optionp, char *const *tokens, char **valuep)
@@ -279,17 +480,35 @@ _GL_WARN_ON_USE (grantpt, "grantpt is not portable - "
 #   undef malloc
 #   define malloc rpl_malloc
 #  endif
-_GL_FUNCDECL_RPL (malloc, void *, (size_t size));
+_GL_FUNCDECL_RPL (malloc, void *,
+                  (size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
 _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
 # else
+#  if __GNUC__ >= 11
+/* For -Wmismatched-dealloc: Associate malloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (malloc, void *,
+                  (size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+#  endif
 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (malloc);
-#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
-# undef malloc
+# endif
+#else
+# if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined malloc
+/* For -Wmismatched-dealloc: Associate malloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (malloc, void *,
+                  (size_t size)
+                  _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE);
+# endif
+# if defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
+#  undef malloc
 /* Assume malloc is always declared.  */
 _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
                  "use gnulib module malloc-posix for portability");
+# endif
 #endif
 
 /* Convert a multibyte character to a wide character.  */
@@ -299,12 +518,27 @@ _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
 #   undef mbtowc
 #   define mbtowc rpl_mbtowc
 #  endif
-_GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
-_GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
+_GL_FUNCDECL_RPL (mbtowc, int,
+                  (wchar_t *restrict pwc, const char *restrict s, size_t n));
+_GL_CXXALIAS_RPL (mbtowc, int,
+                  (wchar_t *restrict pwc, const char *restrict s, size_t n));
 # else
-_GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
+#  if !@HAVE_MBTOWC@
+_GL_FUNCDECL_SYS (mbtowc, int,
+                  (wchar_t *restrict pwc, const char *restrict s, size_t n));
+#  endif
+_GL_CXXALIAS_SYS (mbtowc, int,
+                  (wchar_t *restrict pwc, const char *restrict s, size_t n));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (mbtowc);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef mbtowc
+# if HAVE_RAW_DECL_MBTOWC
+_GL_WARN_ON_USE (mbtowc, "mbtowc is not portable - "
+                 "use gnulib module mbtowc for portability");
+# endif
 #endif
 
 #if @GNULIB_MKDTEMP@
@@ -439,6 +673,51 @@ _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
 # endif
 #endif
 
+#if @GNULIB_MDA_MKTEMP@
+/* On native Windows, map 'mktemp' to '_mktemp', so that -loldnames is not
+   required.  In C++ with GNULIB_NAMESPACE, avoid differences between
+   platforms by defining GNULIB_NAMESPACE::mktemp always.  */
+# if defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef mktemp
+#   define mktemp _mktemp
+#  endif
+_GL_CXXALIAS_MDA (mktemp, char *, (char * /*template*/));
+# else
+_GL_CXXALIAS_SYS (mktemp, char *, (char * /*template*/));
+# endif
+_GL_CXXALIASWARN (mktemp);
+#endif
+
+/* Allocate memory with indefinite extent and specified alignment.  */
+#if @GNULIB_POSIX_MEMALIGN@
+# if @REPLACE_POSIX_MEMALIGN@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef posix_memalign
+#   define posix_memalign rpl_posix_memalign
+#  endif
+_GL_FUNCDECL_RPL (posix_memalign, int,
+                  (void **memptr, size_t alignment, size_t size)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (posix_memalign, int,
+                  (void **memptr, size_t alignment, size_t size));
+# else
+#  if @HAVE_POSIX_MEMALIGN@
+_GL_CXXALIAS_SYS (posix_memalign, int,
+                  (void **memptr, size_t alignment, size_t size));
+#  endif
+# endif
+# if @HAVE_POSIX_MEMALIGN@
+_GL_CXXALIASWARN (posix_memalign);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_memalign
+# if HAVE_RAW_DECL_POSIX_MEMALIGN
+_GL_WARN_ON_USE (posix_memalign, "posix_memalign is not portable - "
+                 "use gnulib module posix_memalign for portability");
+# endif
+#endif
+
 #if @GNULIB_POSIX_OPENPT@
 /* Return an FD open to the master side of a pseudo-terminal.  Flags should
    include O_RDWR, and may also include O_NOCTTY.  */
@@ -497,6 +776,9 @@ _GL_FUNCDECL_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
 #  endif
 _GL_CXXALIAS_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
 # endif
+# ifndef GNULIB_defined_ptsname_r
+#  define GNULIB_defined_ptsname_r (!@HAVE_PTSNAME_R@ || @REPLACE_PTSNAME_R@)
+# endif
 _GL_CXXALIASWARN (ptsname_r);
 #elif defined GNULIB_POSIXCHECK
 # undef ptsname_r
@@ -514,12 +796,72 @@ _GL_WARN_ON_USE (ptsname_r, "ptsname_r is not portable - "
 #  endif
 _GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (putenv, int, (char *string));
+# elif defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef putenv
+#   define putenv _putenv
+#  endif
+_GL_CXXALIAS_MDA (putenv, int, (char *string));
+# else
+_GL_CXXALIAS_SYS (putenv, int, (char *string));
+# endif
+_GL_CXXALIASWARN (putenv);
+#elif @GNULIB_MDA_PUTENV@
+/* On native Windows, map 'putenv' to '_putenv', so that -loldnames is not
+   required.  In C++ with GNULIB_NAMESPACE, avoid differences between
+   platforms by defining GNULIB_NAMESPACE::putenv always.  */
+# if defined _WIN32 && !defined __CYGWIN__
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef putenv
+#   define putenv _putenv
+#  endif
+/* Need to cast, because on mingw, the parameter is either
+   'const char *string' or 'char *string'.  */
+_GL_CXXALIAS_MDA_CAST (putenv, int, (char *string));
 # else
 _GL_CXXALIAS_SYS (putenv, int, (char *string));
 # endif
 _GL_CXXALIASWARN (putenv);
 #endif
 
+#if @GNULIB_QSORT_R@
+/* Sort an array of NMEMB elements, starting at address BASE, each element
+   occupying SIZE bytes, in ascending order according to the comparison
+   function COMPARE.  */
+# if @REPLACE_QSORT_R@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef qsort_r
+#   define qsort_r rpl_qsort_r
+#  endif
+_GL_FUNCDECL_RPL (qsort_r, void, (void *base, size_t nmemb, size_t size,
+                                  int (*compare) (void const *, void const *,
+                                                  void *),
+                                  void *arg) _GL_ARG_NONNULL ((1, 4)));
+_GL_CXXALIAS_RPL (qsort_r, void, (void *base, size_t nmemb, size_t size,
+                                  int (*compare) (void const *, void const *,
+                                                  void *),
+                                  void *arg));
+# else
+#  if !@HAVE_QSORT_R@
+_GL_FUNCDECL_SYS (qsort_r, void, (void *base, size_t nmemb, size_t size,
+                                  int (*compare) (void const *, void const *,
+                                                  void *),
+                                  void *arg) _GL_ARG_NONNULL ((1, 4)));
+#  endif
+_GL_CXXALIAS_SYS (qsort_r, void, (void *base, size_t nmemb, size_t size,
+                                  int (*compare) (void const *, void const *,
+                                                  void *),
+                                  void *arg));
+# endif
+_GL_CXXALIASWARN (qsort_r);
+#elif defined GNULIB_POSIXCHECK
+# undef qsort_r
+# if HAVE_RAW_DECL_QSORT_R
+_GL_WARN_ON_USE (qsort_r, "qsort_r is not portable - "
+                 "use gnulib module qsort_r for portability");
+# endif
+#endif
+
 
 #if @GNULIB_RANDOM_R@
 # if !@HAVE_RANDOM_R@
@@ -531,10 +873,21 @@ _GL_CXXALIASWARN (putenv);
 
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_RANDOM@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef random
+#   define random rpl_random
+#  endif
+_GL_FUNCDECL_RPL (random, long, (void));
+_GL_CXXALIAS_RPL (random, long, (void));
+# else
+#  if !@HAVE_RANDOM@
 _GL_FUNCDECL_SYS (random, long, (void));
+#  endif
+/* Need to cast, because on Haiku, the return type is
+                               int.  */
+_GL_CXXALIAS_SYS_CAST (random, long, (void));
 # endif
-_GL_CXXALIAS_SYS (random, long, (void));
 _GL_CXXALIASWARN (random);
 #elif defined GNULIB_POSIXCHECK
 # undef random
@@ -545,10 +898,21 @@ _GL_WARN_ON_USE (random, "random is unportable - "
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_RANDOM@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef srandom
+#   define srandom rpl_srandom
+#  endif
+_GL_FUNCDECL_RPL (srandom, void, (unsigned int seed));
+_GL_CXXALIAS_RPL (srandom, void, (unsigned int seed));
+# else
+#  if !@HAVE_RANDOM@
 _GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
+#  endif
+/* Need to cast, because on FreeBSD, the first parameter is
+                                       unsigned long seed.  */
+_GL_CXXALIAS_SYS_CAST (srandom, void, (unsigned int seed));
 # endif
-_GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
 _GL_CXXALIASWARN (srandom);
 #elif defined GNULIB_POSIXCHECK
 # undef srandom
@@ -559,31 +923,56 @@ _GL_WARN_ON_USE (srandom, "srandom is unportable - "
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_INITSTATE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef initstate
+#   define initstate rpl_initstate
+#  endif
+_GL_FUNCDECL_RPL (initstate, char *,
+                  (unsigned int seed, char *buf, size_t buf_size)
+                  _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (initstate, char *,
+                  (unsigned int seed, char *buf, size_t buf_size));
+# else
+#  if !@HAVE_INITSTATE@ || !@HAVE_DECL_INITSTATE@
 _GL_FUNCDECL_SYS (initstate, char *,
                   (unsigned int seed, char *buf, size_t buf_size)
                   _GL_ARG_NONNULL ((2)));
+#  endif
+/* Need to cast, because on FreeBSD, the first parameter is
+                        unsigned long seed.  */
+_GL_CXXALIAS_SYS_CAST (initstate, char *,
+                       (unsigned int seed, char *buf, size_t buf_size));
 # endif
-_GL_CXXALIAS_SYS (initstate, char *,
-                  (unsigned int seed, char *buf, size_t buf_size));
 _GL_CXXALIASWARN (initstate);
 #elif defined GNULIB_POSIXCHECK
 # undef initstate
-# if HAVE_RAW_DECL_INITSTATE_R
+# if HAVE_RAW_DECL_INITSTATE
 _GL_WARN_ON_USE (initstate, "initstate is unportable - "
                  "use gnulib module random for portability");
 # endif
 #endif
 
 #if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
+# if @REPLACE_SETSTATE@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef setstate
+#   define setstate rpl_setstate
+#  endif
+_GL_FUNCDECL_RPL (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (setstate, char *, (char *arg_state));
+# else
+#  if !@HAVE_SETSTATE@ || !@HAVE_DECL_SETSTATE@
 _GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
+#  endif
+/* Need to cast, because on Mac OS X 10.13, HP-UX, Solaris the first parameter
+   is                                     const char *arg_state.  */
+_GL_CXXALIAS_SYS_CAST (setstate, char *, (char *arg_state));
 # endif
-_GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
 _GL_CXXALIASWARN (setstate);
 #elif defined GNULIB_POSIXCHECK
 # undef setstate
-# if HAVE_RAW_DECL_SETSTATE_R
+# if HAVE_RAW_DECL_SETSTATE
 _GL_WARN_ON_USE (setstate, "setstate is unportable - "
                  "use gnulib module random for portability");
 # endif
@@ -664,9 +1053,11 @@ _GL_FUNCDECL_SYS (initstate_r, int,
                    struct random_data *rand_state)
                   _GL_ARG_NONNULL ((2, 4)));
 #  endif
-_GL_CXXALIAS_SYS (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state));
+/* Need to cast, because on Haiku, the third parameter is
+                                                     unsigned long buf_size.  */
+_GL_CXXALIAS_SYS_CAST (initstate_r, int,
+                       (unsigned int seed, char *buf, size_t buf_size,
+                        struct random_data *rand_state));
 # endif
 _GL_CXXALIASWARN (initstate_r);
 #elif defined GNULIB_POSIXCHECK
@@ -694,8 +1085,10 @@ _GL_FUNCDECL_SYS (setstate_r, int,
                   (char *arg_state, struct random_data *rand_state)
                   _GL_ARG_NONNULL ((1, 2)));
 #  endif
-_GL_CXXALIAS_SYS (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state));
+/* Need to cast, because on Haiku, the first parameter is
+                        void *arg_state.  */
+_GL_CXXALIAS_SYS_CAST (setstate_r, int,
+                       (char *arg_state, struct random_data *rand_state));
 # endif
 _GL_CXXALIASWARN (setstate_r);
 #elif defined GNULIB_POSIXCHECK
@@ -714,17 +1107,60 @@ _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
 #   undef realloc
 #   define realloc rpl_realloc
 #  endif
-_GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
+_GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size)
+                                   _GL_ATTRIBUTE_DEALLOC_FREE);
 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
 # else
+#  if __GNUC__ >= 11
+/* For -Wmismatched-dealloc: Associate realloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (realloc, void *, (void *ptr, size_t size)
+                                   _GL_ATTRIBUTE_DEALLOC_FREE);
+#  endif
 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (realloc);
-#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
-# undef realloc
+# endif
+#else
+# if @GNULIB_FREE_POSIX@ && __GNUC__ >= 11 && !defined realloc
+/* For -Wmismatched-dealloc: Associate realloc with free or rpl_free.  */
+_GL_FUNCDECL_SYS (realloc, void *, (void *ptr, size_t size)
+                                   _GL_ATTRIBUTE_DEALLOC_FREE);
+# endif
+# if defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
+#  undef realloc
 /* Assume realloc is always declared.  */
 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
                  "use gnulib module realloc-posix for portability");
+# endif
+#endif
+
+
+#if @GNULIB_REALLOCARRAY@
+# if @REPLACE_REALLOCARRAY@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   undef reallocarray
+#   define reallocarray rpl_reallocarray
+#  endif
+_GL_FUNCDECL_RPL (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+_GL_CXXALIAS_RPL (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+# else
+#  if ! @HAVE_REALLOCARRAY@
+_GL_FUNCDECL_SYS (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+#  endif
+_GL_CXXALIAS_SYS (reallocarray, void *,
+                  (void *ptr, size_t nmemb, size_t size));
+# endif
+_GL_CXXALIASWARN (reallocarray);
+#elif defined GNULIB_POSIXCHECK
+# undef reallocarray
+# if HAVE_RAW_DECL_REALLOCARRAY
+_GL_WARN_ON_USE (reallocarray, "reallocarray is not portable - "
+                 "use gnulib module reallocarray for portability");
+# endif
 #endif
 
 #if @GNULIB_REALPATH@
@@ -732,15 +1168,19 @@ _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define realpath rpl_realpath
 #  endif
-_GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
-                                    _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
+_GL_FUNCDECL_RPL (realpath, char *,
+                  (const char *restrict name, char *restrict resolved)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (realpath, char *,
+                  (const char *restrict name, char *restrict resolved));
 # else
 #  if !@HAVE_REALPATH@
-_GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
-                                    _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_SYS (realpath, char *,
+                  (const char *restrict name, char *restrict resolved)
+                  _GL_ARG_NONNULL ((1)));
 #  endif
-_GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
+_GL_CXXALIAS_SYS (realpath, char *,
+                  (const char *restrict name, char *restrict resolved));
 # endif
 _GL_CXXALIASWARN (realpath);
 #elif defined GNULIB_POSIXCHECK
@@ -822,17 +1262,24 @@ _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define strtod rpl_strtod
 #  endif
-_GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
+#  define GNULIB_defined_strtod_function 1
+_GL_FUNCDECL_RPL (strtod, double,
+                  (const char *restrict str, char **restrict endp)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtod, double,
+                  (const char *restrict str, char **restrict endp));
 # else
 #  if !@HAVE_STRTOD@
-_GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
-                                  _GL_ARG_NONNULL ((1)));
+_GL_FUNCDECL_SYS (strtod, double,
+                  (const char *restrict str, char **restrict endp)
+                  _GL_ARG_NONNULL ((1)));
 #  endif
-_GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
+_GL_CXXALIAS_SYS (strtod, double,
+                  (const char *restrict str, char **restrict endp));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (strtod);
+# endif
 #elif defined GNULIB_POSIXCHECK
 # undef strtod
 # if HAVE_RAW_DECL_STRTOD
@@ -841,6 +1288,77 @@ _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 # endif
 #endif
 
+#if @GNULIB_STRTOLD@
+ /* Parse a 'long double' from STRING, updating ENDP if appropriate.  */
+# if @REPLACE_STRTOLD@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtold rpl_strtold
+#  endif
+#  define GNULIB_defined_strtold_function 1
+_GL_FUNCDECL_RPL (strtold, long double,
+                  (const char *restrict str, char **restrict endp)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtold, long double,
+                  (const char *restrict str, char **restrict endp));
+# else
+#  if !@HAVE_STRTOLD@
+_GL_FUNCDECL_SYS (strtold, long double,
+                  (const char *restrict str, char **restrict endp)
+                  _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtold, long double,
+                  (const char *restrict str, char **restrict endp));
+# endif
+_GL_CXXALIASWARN (strtold);
+#elif defined GNULIB_POSIXCHECK
+# undef strtold
+# if HAVE_RAW_DECL_STRTOLD
+_GL_WARN_ON_USE (strtold, "strtold is unportable - "
+                 "use gnulib module strtold for portability");
+# endif
+#endif
+
+#if @GNULIB_STRTOL@
+/* Parse a signed integer whose textual representation starts at STRING.
+   The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
+   it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
+   "0x").
+   If ENDPTR is not NULL, the address of the first byte after the integer is
+   stored in *ENDPTR.
+   Upon overflow, the return value is LONG_MAX or LONG_MIN, and errno is set
+   to ERANGE.  */
+# if @REPLACE_STRTOL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtol rpl_strtol
+#  endif
+#  define GNULIB_defined_strtol_function 1
+_GL_FUNCDECL_RPL (strtol, long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtol, long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# else
+#  if !@HAVE_STRTOL@
+_GL_FUNCDECL_SYS (strtol, long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtol, long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# endif
+_GL_CXXALIASWARN (strtol);
+#elif defined GNULIB_POSIXCHECK
+# undef strtol
+# if HAVE_RAW_DECL_STRTOL
+_GL_WARN_ON_USE (strtol, "strtol is unportable - "
+                 "use gnulib module strtol for portability");
+# endif
+#endif
+
 #if @GNULIB_STRTOLL@
 /* Parse a signed integer whose textual representation starts at STRING.
    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
@@ -850,13 +1368,29 @@ _GL_WARN_ON_USE (strtod, "strtod is unportable - "
    stored in *ENDPTR.
    Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
    to ERANGE.  */
-# if !@HAVE_STRTOLL@
+# if @REPLACE_STRTOLL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtoll rpl_strtoll
+#  endif
+#  define GNULIB_defined_strtoll_function 1
+_GL_FUNCDECL_RPL (strtoll, long long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtoll, long long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# else
+#  if !@HAVE_STRTOLL@
 _GL_FUNCDECL_SYS (strtoll, long long,
-                  (const char *string, char **endptr, int base)
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
                   _GL_ARG_NONNULL ((1)));
-# endif
+#  endif
 _GL_CXXALIAS_SYS (strtoll, long long,
-                  (const char *string, char **endptr, int base));
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# endif
 _GL_CXXALIASWARN (strtoll);
 #elif defined GNULIB_POSIXCHECK
 # undef strtoll
@@ -866,6 +1400,46 @@ _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
 # endif
 #endif
 
+#if @GNULIB_STRTOUL@
+/* Parse an unsigned integer whose textual representation starts at STRING.
+   The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
+   it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
+   "0x").
+   If ENDPTR is not NULL, the address of the first byte after the integer is
+   stored in *ENDPTR.
+   Upon overflow, the return value is ULONG_MAX, and errno is set to ERANGE.  */
+# if @REPLACE_STRTOUL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtoul rpl_strtoul
+#  endif
+#  define GNULIB_defined_strtoul_function 1
+_GL_FUNCDECL_RPL (strtoul, unsigned long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtoul, unsigned long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# else
+#  if !@HAVE_STRTOUL@
+_GL_FUNCDECL_SYS (strtoul, unsigned long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtoul, unsigned long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# endif
+_GL_CXXALIASWARN (strtoul);
+#elif defined GNULIB_POSIXCHECK
+# undef strtoul
+# if HAVE_RAW_DECL_STRTOUL
+_GL_WARN_ON_USE (strtoul, "strtoul is unportable - "
+                 "use gnulib module strtoul for portability");
+# endif
+#endif
+
 #if @GNULIB_STRTOULL@
 /* Parse an unsigned integer whose textual representation starts at STRING.
    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
@@ -875,13 +1449,29 @@ _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
    stored in *ENDPTR.
    Upon overflow, the return value is ULLONG_MAX, and errno is set to
    ERANGE.  */
-# if !@HAVE_STRTOULL@
+# if @REPLACE_STRTOULL@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtoull rpl_strtoull
+#  endif
+#  define GNULIB_defined_strtoull_function 1
+_GL_FUNCDECL_RPL (strtoull, unsigned long long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
+                  _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtoull, unsigned long long,
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# else
+#  if !@HAVE_STRTOULL@
 _GL_FUNCDECL_SYS (strtoull, unsigned long long,
-                  (const char *string, char **endptr, int base)
+                  (const char *restrict string, char **restrict endptr,
+                   int base)
                   _GL_ARG_NONNULL ((1)));
-# endif
+#  endif
 _GL_CXXALIAS_SYS (strtoull, unsigned long long,
-                  (const char *string, char **endptr, int base));
+                  (const char *restrict string, char **restrict endptr,
+                   int base));
+# endif
 _GL_CXXALIASWARN (strtoull);
 #elif defined GNULIB_POSIXCHECK
 # undef strtoull
@@ -945,7 +1535,9 @@ _GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
 # else
 _GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
 # endif
+# if __GLIBC__ >= 2
 _GL_CXXALIASWARN (wctomb);
+# endif
 #endif