text: /* A GNU-like <stdlib.h>.
  
     Copyright (C) 1995, 2001-2004, 2006-2020 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 2.1 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/>.  */
  
  #if __GNUC__ >= 3
  @PRAGMA_SYSTEM_HEADER@
  #endif
  @PRAGMA_COLUMNS@
  
  #if defined __need_system_stdlib_h || defined __need_malloc_and_calloc
  /* Special invocation conventions inside some gnulib header files,
     and inside some glibc header files, respectively.  */
  
  #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  
  #else
  /* Normal invocation convention.  */
  
  #ifndef _@GUARD_PREFIX@_STDLIB_H
  
  /* The include_next requires a split double-inclusion guard.  */
  #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
  
  #ifndef _@GUARD_PREFIX@_STDLIB_H
  #define _@GUARD_PREFIX@_STDLIB_H
  
  /* NetBSD 5.0 mis-defines NULL.  */
  #include <stddef.h>
  
  /* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>.  */
  #if @GNULIB_SYSTEM_POSIX@ && !defined WEXITSTATUS
  # include <sys/wait.h>
  #endif
  
  /* 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 __CYGWIN__)
  # include <io.h>
  #endif
  
  #if @GNULIB_RANDOM_R@
  
  /* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
     from <stdlib.h> if _REENTRANT is defined.  Include it whenever we need
     'struct random_data'.  */
  # if @HAVE_RANDOM_H@
  #  include <random.h>
  # endif
  
  # if !@HAVE_STRUCT_RANDOM_DATA@ || @REPLACE_RANDOM_R@ || !@HAVE_RANDOM_R@
  #  include <stdint.h>
  # endif
  
  # if !@HAVE_STRUCT_RANDOM_DATA@
  /* Define 'struct random_data'.
     But allow multiple gnulib generated <stdlib.h> replacements to coexist.  */
  #  if !GNULIB_defined_struct_random_data
  struct random_data
  {
    int32_t *fptr;                /* Front pointer.  */
    int32_t *rptr;                /* Rear pointer.  */
    int32_t *state;               /* Array of state values.  */
    int rand_type;                /* Type of random number generator.  */
    int rand_deg;                 /* Degree of random number generator.  */
    int rand_sep;                 /* Distance between front and rear.  */
    int32_t *end_ptr;             /* Pointer behind state table.  */
  };
  #   define GNULIB_defined_struct_random_data 1
  #  endif
  # endif
  #endif
  
  #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
  
  /* The __attribute__ feature is available in gcc versions 2.5 and later.
     The attribute __pure__ was added in gcc 2.96.  */
  #ifndef _GL_ATTRIBUTE_PURE
  # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
  #  define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
  # else
  #  define _GL_ATTRIBUTE_PURE /* empty */
  # endif
  #endif
  
  /* The definition of _Noreturn is copied here.  */
  
  /* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
  
  /* The definition of _GL_ARG_NONNULL is copied here.  */
  
  /* The definition of _GL_WARN_ON_USE is copied here.  */
  
  
  /* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
  #ifndef EXIT_SUCCESS
  # define EXIT_SUCCESS 0
  #endif
  /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
     with proper operation of xargs.  */
  #ifndef EXIT_FAILURE
  # define EXIT_FAILURE 1
  #elif EXIT_FAILURE != 1
  # undef EXIT_FAILURE
  # define EXIT_FAILURE 1
  #endif
  
  
  #if @GNULIB__EXIT@
  /* Terminate the current process with the given return code, without running
     the 'atexit' handlers.  */
  # if !@HAVE__EXIT@
  _GL_FUNCDECL_SYS (_Exit, _Noreturn void, (int status));
  # endif
  _GL_CXXALIAS_SYS (_Exit, void, (int status));
  _GL_CXXALIASWARN (_Exit);
  #elif defined GNULIB_POSIXCHECK
  # undef _Exit
  # if HAVE_RAW_DECL__EXIT
  _GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
                   "use gnulib module _Exit for portability");
  # endif
  #endif
  
  
  #if @GNULIB_ATOLL@
  /* Parse a signed decimal integer.
     Returns the value of the integer.  Errors are not detected.  */
  # if !@HAVE_ATOLL@
  _GL_FUNCDECL_SYS (atoll, long long, (const char *string)
                                      _GL_ATTRIBUTE_PURE
                                      _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (atoll, long long, (const char *string));
  _GL_CXXALIASWARN (atoll);
  #elif defined GNULIB_POSIXCHECK
  # undef atoll
  # if HAVE_RAW_DECL_ATOLL
  _GL_WARN_ON_USE (atoll, "atoll is unportable - "
                   "use gnulib module atoll for portability");
  # endif
  #endif
  
  #if @GNULIB_CALLOC_POSIX@
  # if @REPLACE_CALLOC@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef calloc
  #   define calloc rpl_calloc
  #  endif
  _GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
  _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
  # else
  _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
  # endif
  # if __GLIBC__ >= 2
  _GL_CXXALIASWARN (calloc);
  # endif
  #elif 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
  
  #if @GNULIB_CANONICALIZE_FILE_NAME@
  # if @REPLACE_CANONICALIZE_FILE_NAME@
  #  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_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)));
  #  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
  _GL_WARN_ON_USE (canonicalize_file_name,
                   "canonicalize_file_name is unportable - "
                   "use gnulib module canonicalize-lgpl for portability");
  # endif
  #endif
  
  #if @GNULIB_GETLOADAVG@
  /* Store max(NELEM,3) load average numbers in LOADAVG[].
     The three numbers are the load average of the last 1 minute, the last 5
     minutes, and the last 15 minutes, respectively.
     LOADAVG is an array of NELEM numbers.  */
  # if !@HAVE_DECL_GETLOADAVG@
  _GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
                                     _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
  _GL_CXXALIASWARN (getloadavg);
  #elif defined GNULIB_POSIXCHECK
  # undef getloadavg
  # if HAVE_RAW_DECL_GETLOADAVG
  _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
                   "use gnulib module getloadavg for portability");
  # endif
  #endif
  
  #if @GNULIB_GETSUBOPT@
  /* Assuming *OPTIONP is a comma separated list of elements of the form
     "token" or "token=value", getsubopt parses the first of these elements.
     If the first element refers to a "token" that is member of the given
     NULL-terminated array of tokens:
       - It replaces the comma with a NUL byte, updates *OPTIONP to point past
         the first option and the comma, sets *VALUEP to the value of the
         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 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)
                    _GL_ARG_NONNULL ((1, 2, 3)));
  # endif
  _GL_CXXALIAS_SYS (getsubopt, int,
                    (char **optionp, char *const *tokens, char **valuep));
  _GL_CXXALIASWARN (getsubopt);
  #elif defined GNULIB_POSIXCHECK
  # undef getsubopt
  # if HAVE_RAW_DECL_GETSUBOPT
  _GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
                   "use gnulib module getsubopt for portability");
  # endif
  #endif
  
  #if @GNULIB_GRANTPT@
  /* Change the ownership and access permission of the slave side of the
     pseudo-terminal whose master side is specified by FD.  */
  # if !@HAVE_GRANTPT@
  _GL_FUNCDECL_SYS (grantpt, int, (int fd));
  # endif
  _GL_CXXALIAS_SYS (grantpt, int, (int fd));
  _GL_CXXALIASWARN (grantpt);
  #elif defined GNULIB_POSIXCHECK
  # undef grantpt
  # if HAVE_RAW_DECL_GRANTPT
  _GL_WARN_ON_USE (grantpt, "grantpt is not portable - "
                   "use gnulib module grantpt for portability");
  # endif
  #endif
  
  /* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
     rely on GNU or POSIX semantics for malloc and realloc (for example,
     by never specifying a zero size), so it does not need malloc or
     realloc to be redefined.  */
  #if @GNULIB_MALLOC_POSIX@
  # if @REPLACE_MALLOC@
  #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
          || _GL_USE_STDLIB_ALLOC)
  #   undef malloc
  #   define malloc rpl_malloc
  #  endif
  _GL_FUNCDECL_RPL (malloc, void *, (size_t size));
  _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
  # else
  _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
  # endif
  # if __GLIBC__ >= 2
  _GL_CXXALIASWARN (malloc);
  # endif
  #elif 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
  
  /* Convert a multibyte character to a wide character.  */
  #if @GNULIB_MBTOWC@
  # if @REPLACE_MBTOWC@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef mbtowc
  #   define mbtowc rpl_mbtowc
  #  endif
  _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
  #  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@
  /* Create a unique temporary directory from TEMPLATE.
     The last six characters of TEMPLATE must be "XXXXXX";
     they are replaced with a string that makes the directory name unique.
     Returns TEMPLATE, or a null pointer if it cannot get a unique name.
     The directory is created mode 700.  */
  # if !@HAVE_MKDTEMP@
  _GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
  _GL_CXXALIASWARN (mkdtemp);
  #elif defined GNULIB_POSIXCHECK
  # undef mkdtemp
  # if HAVE_RAW_DECL_MKDTEMP
  _GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
                   "use gnulib module mkdtemp for portability");
  # endif
  #endif
  
  #if @GNULIB_MKOSTEMP@
  /* Create a unique temporary file from TEMPLATE.
     The last six characters of TEMPLATE must be "XXXXXX";
     they are replaced with a string that makes the file name unique.
     The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
     and O_TEXT, O_BINARY (defined in "binary-io.h").
     The file is then created, with the specified flags, ensuring it didn't exist
     before.
     The file is created read-write (mask at least 0600 & ~umask), but it may be
     world-readable and world-writable (mask 0666 & ~umask), depending on the
     implementation.
     Returns the open file descriptor if successful, otherwise -1 and errno
     set.  */
  # if !@HAVE_MKOSTEMP@
  _GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
                                   _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
  _GL_CXXALIASWARN (mkostemp);
  #elif defined GNULIB_POSIXCHECK
  # undef mkostemp
  # if HAVE_RAW_DECL_MKOSTEMP
  _GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
                   "use gnulib module mkostemp for portability");
  # endif
  #endif
  
  #if @GNULIB_MKOSTEMPS@
  /* Create a unique temporary file from TEMPLATE.
     The last six characters of TEMPLATE before a suffix of length
     SUFFIXLEN must be "XXXXXX";
     they are replaced with a string that makes the file name unique.
     The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
     and O_TEXT, O_BINARY (defined in "binary-io.h").
     The file is then created, with the specified flags, ensuring it didn't exist
     before.
     The file is created read-write (mask at least 0600 & ~umask), but it may be
     world-readable and world-writable (mask 0666 & ~umask), depending on the
     implementation.
     Returns the open file descriptor if successful, otherwise -1 and errno
     set.  */
  # if !@HAVE_MKOSTEMPS@
  _GL_FUNCDECL_SYS (mkostemps, int,
                    (char * /*template*/, int /*suffixlen*/, int /*flags*/)
                    _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (mkostemps, int,
                    (char * /*template*/, int /*suffixlen*/, int /*flags*/));
  _GL_CXXALIASWARN (mkostemps);
  #elif defined GNULIB_POSIXCHECK
  # undef mkostemps
  # if HAVE_RAW_DECL_MKOSTEMPS
  _GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
                   "use gnulib module mkostemps for portability");
  # endif
  #endif
  
  #if @GNULIB_MKSTEMP@
  /* Create a unique temporary file from TEMPLATE.
     The last six characters of TEMPLATE must be "XXXXXX";
     they are replaced with a string that makes the file name unique.
     The file is then created, ensuring it didn't exist before.
     The file is created read-write (mask at least 0600 & ~umask), but it may be
     world-readable and world-writable (mask 0666 & ~umask), depending on the
     implementation.
     Returns the open file descriptor if successful, otherwise -1 and errno
     set.  */
  # if @REPLACE_MKSTEMP@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   define mkstemp rpl_mkstemp
  #  endif
  _GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
  # else
  #  if ! @HAVE_MKSTEMP@
  _GL_FUNCDECL_SYS (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
  # endif
  _GL_CXXALIASWARN (mkstemp);
  #elif defined GNULIB_POSIXCHECK
  # undef mkstemp
  # if HAVE_RAW_DECL_MKSTEMP
  _GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
                   "use gnulib module mkstemp for portability");
  # endif
  #endif
  
  #if @GNULIB_MKSTEMPS@
  /* Create a unique temporary file from TEMPLATE.
     The last six characters of TEMPLATE prior to a suffix of length
     SUFFIXLEN must be "XXXXXX";
     they are replaced with a string that makes the file name unique.
     The file is then created, ensuring it didn't exist before.
     The file is created read-write (mask at least 0600 & ~umask), but it may be
     world-readable and world-writable (mask 0666 & ~umask), depending on the
     implementation.
     Returns the open file descriptor if successful, otherwise -1 and errno
     set.  */
  # if !@HAVE_MKSTEMPS@
  _GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
                                   _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
  _GL_CXXALIASWARN (mkstemps);
  #elif defined GNULIB_POSIXCHECK
  # undef mkstemps
  # if HAVE_RAW_DECL_MKSTEMPS
  _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
                   "use gnulib module mkstemps 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.  */
  # if !@HAVE_POSIX_OPENPT@
  _GL_FUNCDECL_SYS (posix_openpt, int, (int flags));
  # endif
  _GL_CXXALIAS_SYS (posix_openpt, int, (int flags));
  _GL_CXXALIASWARN (posix_openpt);
  #elif defined GNULIB_POSIXCHECK
  # undef posix_openpt
  # if HAVE_RAW_DECL_POSIX_OPENPT
  _GL_WARN_ON_USE (posix_openpt, "posix_openpt is not portable - "
                   "use gnulib module posix_openpt for portability");
  # endif
  #endif
  
  #if @GNULIB_PTSNAME@
  /* Return the pathname of the pseudo-terminal slave associated with
     the master FD is open on, or NULL on errors.  */
  # if @REPLACE_PTSNAME@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef ptsname
  #   define ptsname rpl_ptsname
  #  endif
  _GL_FUNCDECL_RPL (ptsname, char *, (int fd));
  _GL_CXXALIAS_RPL (ptsname, char *, (int fd));
  # else
  #  if !@HAVE_PTSNAME@
  _GL_FUNCDECL_SYS (ptsname, char *, (int fd));
  #  endif
  _GL_CXXALIAS_SYS (ptsname, char *, (int fd));
  # endif
  _GL_CXXALIASWARN (ptsname);
  #elif defined GNULIB_POSIXCHECK
  # undef ptsname
  # if HAVE_RAW_DECL_PTSNAME
  _GL_WARN_ON_USE (ptsname, "ptsname is not portable - "
                   "use gnulib module ptsname for portability");
  # endif
  #endif
  
  #if @GNULIB_PTSNAME_R@
  /* Set the pathname of the pseudo-terminal slave associated with
     the master FD is open on and return 0, or set errno and return
     non-zero on errors.  */
  # if @REPLACE_PTSNAME_R@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef ptsname_r
  #   define ptsname_r rpl_ptsname_r
  #  endif
  _GL_FUNCDECL_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
  _GL_CXXALIAS_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
  # else
  #  if !@HAVE_PTSNAME_R@
  _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
  # if HAVE_RAW_DECL_PTSNAME_R
  _GL_WARN_ON_USE (ptsname_r, "ptsname_r is not portable - "
                   "use gnulib module ptsname_r for portability");
  # endif
  #endif
  
  #if @GNULIB_PUTENV@
  # if @REPLACE_PUTENV@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef putenv
  #   define putenv rpl_putenv
  #  endif
  _GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (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@
  #  ifndef RAND_MAX
  #   define RAND_MAX 2147483647
  #  endif
  # endif
  #endif
  
  
  #if @GNULIB_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_CXXALIASWARN (random);
  #elif defined GNULIB_POSIXCHECK
  # undef random
  # if HAVE_RAW_DECL_RANDOM
  _GL_WARN_ON_USE (random, "random is unportable - "
                   "use gnulib module random for portability");
  # endif
  #endif
  
  #if @GNULIB_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_CXXALIASWARN (srandom);
  #elif defined GNULIB_POSIXCHECK
  # undef srandom
  # if HAVE_RAW_DECL_SRANDOM
  _GL_WARN_ON_USE (srandom, "srandom is unportable - "
                   "use gnulib module random for portability");
  # endif
  #endif
  
  #if @GNULIB_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_CXXALIASWARN (initstate);
  #elif defined GNULIB_POSIXCHECK
  # undef initstate
  # 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 @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_CXXALIASWARN (setstate);
  #elif defined GNULIB_POSIXCHECK
  # undef setstate
  # if HAVE_RAW_DECL_SETSTATE
  _GL_WARN_ON_USE (setstate, "setstate is unportable - "
                   "use gnulib module random for portability");
  # endif
  #endif
  
  
  #if @GNULIB_RANDOM_R@
  # if @REPLACE_RANDOM_R@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef random_r
  #   define random_r rpl_random_r
  #  endif
  _GL_FUNCDECL_RPL (random_r, int, (struct random_data *buf, int32_t *result)
                                   _GL_ARG_NONNULL ((1, 2)));
  _GL_CXXALIAS_RPL (random_r, int, (struct random_data *buf, int32_t *result));
  # else
  #  if !@HAVE_RANDOM_R@
  _GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
                                   _GL_ARG_NONNULL ((1, 2)));
  #  endif
  _GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
  # endif
  _GL_CXXALIASWARN (random_r);
  #elif defined GNULIB_POSIXCHECK
  # undef random_r
  # if HAVE_RAW_DECL_RANDOM_R
  _GL_WARN_ON_USE (random_r, "random_r is unportable - "
                   "use gnulib module random_r for portability");
  # endif
  #endif
  
  #if @GNULIB_RANDOM_R@
  # if @REPLACE_RANDOM_R@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef srandom_r
  #   define srandom_r rpl_srandom_r
  #  endif
  _GL_FUNCDECL_RPL (srandom_r, int,
                    (unsigned int seed, struct random_data *rand_state)
                    _GL_ARG_NONNULL ((2)));
  _GL_CXXALIAS_RPL (srandom_r, int,
                    (unsigned int seed, struct random_data *rand_state));
  # else
  #  if !@HAVE_RANDOM_R@
  _GL_FUNCDECL_SYS (srandom_r, int,
                    (unsigned int seed, struct random_data *rand_state)
                    _GL_ARG_NONNULL ((2)));
  #  endif
  _GL_CXXALIAS_SYS (srandom_r, int,
                    (unsigned int seed, struct random_data *rand_state));
  # endif
  _GL_CXXALIASWARN (srandom_r);
  #elif defined GNULIB_POSIXCHECK
  # undef srandom_r
  # if HAVE_RAW_DECL_SRANDOM_R
  _GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
                   "use gnulib module random_r for portability");
  # endif
  #endif
  
  #if @GNULIB_RANDOM_R@
  # if @REPLACE_RANDOM_R@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef initstate_r
  #   define initstate_r rpl_initstate_r
  #  endif
  _GL_FUNCDECL_RPL (initstate_r, int,
                    (unsigned int seed, char *buf, size_t buf_size,
                     struct random_data *rand_state)
                    _GL_ARG_NONNULL ((2, 4)));
  _GL_CXXALIAS_RPL (initstate_r, int,
                    (unsigned int seed, char *buf, size_t buf_size,
                     struct random_data *rand_state));
  # else
  #  if !@HAVE_RANDOM_R@
  _GL_FUNCDECL_SYS (initstate_r, int,
                    (unsigned int seed, char *buf, size_t buf_size,
                     struct random_data *rand_state)
                    _GL_ARG_NONNULL ((2, 4)));
  #  endif
  /* 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
  # undef initstate_r
  # if HAVE_RAW_DECL_INITSTATE_R
  _GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
                   "use gnulib module random_r for portability");
  # endif
  #endif
  
  #if @GNULIB_RANDOM_R@
  # if @REPLACE_RANDOM_R@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef setstate_r
  #   define setstate_r rpl_setstate_r
  #  endif
  _GL_FUNCDECL_RPL (setstate_r, int,
                    (char *arg_state, struct random_data *rand_state)
                    _GL_ARG_NONNULL ((1, 2)));
  _GL_CXXALIAS_RPL (setstate_r, int,
                    (char *arg_state, struct random_data *rand_state));
  # else
  #  if !@HAVE_RANDOM_R@
  _GL_FUNCDECL_SYS (setstate_r, int,
                    (char *arg_state, struct random_data *rand_state)
                    _GL_ARG_NONNULL ((1, 2)));
  #  endif
  /* 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
  # undef setstate_r
  # if HAVE_RAW_DECL_SETSTATE_R
  _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
                   "use gnulib module random_r for portability");
  # endif
  #endif
  
  
  #if @GNULIB_REALLOC_POSIX@
  # if @REPLACE_REALLOC@
  #  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
          || _GL_USE_STDLIB_ALLOC)
  #   undef realloc
  #   define realloc rpl_realloc
  #  endif
  _GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
  _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
  # else
  _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
  # endif
  # if __GLIBC__ >= 2
  _GL_CXXALIASWARN (realloc);
  # endif
  #elif 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
  
  
  #if @GNULIB_REALLOCARRAY@
  # 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));
  _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@
  # if @REPLACE_REALPATH@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   define realpath rpl_realpath
  #  endif
  _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 *restrict name, char *restrict resolved)
                    _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (realpath, char *,
                    (const char *restrict name, char *restrict resolved));
  # endif
  _GL_CXXALIASWARN (realpath);
  #elif defined GNULIB_POSIXCHECK
  # undef realpath
  # if HAVE_RAW_DECL_REALPATH
  _GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
                   "canonicalize or canonicalize-lgpl for portability");
  # endif
  #endif
  
  #if @GNULIB_RPMATCH@
  /* Test a user response to a question.
     Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear.  */
  # if !@HAVE_RPMATCH@
  _GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
  _GL_CXXALIASWARN (rpmatch);
  #elif defined GNULIB_POSIXCHECK
  # undef rpmatch
  # if HAVE_RAW_DECL_RPMATCH
  _GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
                   "use gnulib module rpmatch for portability");
  # endif
  #endif
  
  #if @GNULIB_SECURE_GETENV@
  /* Look up NAME in the environment, returning 0 in insecure situations.  */
  # if !@HAVE_SECURE_GETENV@
  _GL_FUNCDECL_SYS (secure_getenv, char *,
                    (char const *name) _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (secure_getenv, char *, (char const *name));
  _GL_CXXALIASWARN (secure_getenv);
  #elif defined GNULIB_POSIXCHECK
  # undef secure_getenv
  # if HAVE_RAW_DECL_SECURE_GETENV
  _GL_WARN_ON_USE (secure_getenv, "secure_getenv is unportable - "
                   "use gnulib module secure_getenv for portability");
  # endif
  #endif
  
  #if @GNULIB_SETENV@
  /* Set NAME to VALUE in the environment.
     If REPLACE is nonzero, overwrite an existing value.  */
  # if @REPLACE_SETENV@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef setenv
  #   define setenv rpl_setenv
  #  endif
  _GL_FUNCDECL_RPL (setenv, int,
                    (const char *name, const char *value, int replace)
                    _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (setenv, int,
                    (const char *name, const char *value, int replace));
  # else
  #  if !@HAVE_DECL_SETENV@
  _GL_FUNCDECL_SYS (setenv, int,
                    (const char *name, const char *value, int replace)
                    _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (setenv, int,
                    (const char *name, const char *value, int replace));
  # endif
  # if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
  _GL_CXXALIASWARN (setenv);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef setenv
  # if HAVE_RAW_DECL_SETENV
  _GL_WARN_ON_USE (setenv, "setenv is unportable - "
                   "use gnulib module setenv for portability");
  # endif
  #endif
  
  #if @GNULIB_STRTOD@
   /* Parse a double from STRING, updating ENDP if appropriate.  */
  # if @REPLACE_STRTOD@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   define strtod rpl_strtod
  #  endif
  #  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 *restrict str, char **restrict endp)
                    _GL_ARG_NONNULL ((1)));
  #  endif
  _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
  _GL_WARN_ON_USE (strtod, "strtod is unportable - "
                   "use gnulib module strtod for portability");
  # 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_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,
     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 LLONG_MAX or LLONG_MIN, and errno is set
     to ERANGE.  */
  # if !@HAVE_STRTOLL@
  _GL_FUNCDECL_SYS (strtoll, long long,
                    (const char *restrict string, char **restrict endptr,
                     int base)
                    _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (strtoll, long long,
                    (const char *restrict string, char **restrict endptr,
                     int base));
  _GL_CXXALIASWARN (strtoll);
  #elif defined GNULIB_POSIXCHECK
  # undef strtoll
  # if HAVE_RAW_DECL_STRTOLL
  _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
                   "use gnulib module strtoll 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,
     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 ULLONG_MAX, and errno is set to
     ERANGE.  */
  # if !@HAVE_STRTOULL@
  _GL_FUNCDECL_SYS (strtoull, unsigned long long,
                    (const char *restrict string, char **restrict endptr,
                     int base)
                    _GL_ARG_NONNULL ((1)));
  # endif
  _GL_CXXALIAS_SYS (strtoull, unsigned long long,
                    (const char *restrict string, char **restrict endptr,
                     int base));
  _GL_CXXALIASWARN (strtoull);
  #elif defined GNULIB_POSIXCHECK
  # undef strtoull
  # if HAVE_RAW_DECL_STRTOULL
  _GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
                   "use gnulib module strtoull for portability");
  # endif
  #endif
  
  #if @GNULIB_UNLOCKPT@
  /* Unlock the slave side of the pseudo-terminal whose master side is specified
     by FD, so that it can be opened.  */
  # if !@HAVE_UNLOCKPT@
  _GL_FUNCDECL_SYS (unlockpt, int, (int fd));
  # endif
  _GL_CXXALIAS_SYS (unlockpt, int, (int fd));
  _GL_CXXALIASWARN (unlockpt);
  #elif defined GNULIB_POSIXCHECK
  # undef unlockpt
  # if HAVE_RAW_DECL_UNLOCKPT
  _GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
                   "use gnulib module unlockpt for portability");
  # endif
  #endif
  
  #if @GNULIB_UNSETENV@
  /* Remove the variable NAME from the environment.  */
  # if @REPLACE_UNSETENV@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef unsetenv
  #   define unsetenv rpl_unsetenv
  #  endif
  _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
  _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
  # else
  #  if !@HAVE_DECL_UNSETENV@
  _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
  #  endif
  _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
  # endif
  # if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
  _GL_CXXALIASWARN (unsetenv);
  # endif
  #elif defined GNULIB_POSIXCHECK
  # undef unsetenv
  # if HAVE_RAW_DECL_UNSETENV
  _GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
                   "use gnulib module unsetenv for portability");
  # endif
  #endif
  
  /* Convert a wide character to a multibyte character.  */
  #if @GNULIB_WCTOMB@
  # if @REPLACE_WCTOMB@
  #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
  #   undef wctomb
  #   define wctomb rpl_wctomb
  #  endif
  _GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
  _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
  
  
  #endif /* _@GUARD_PREFIX@_STDLIB_H */
  #endif /* _@GUARD_PREFIX@_STDLIB_H */
  #endif
  