1 files changed, 9 insertions, 18 deletions

diff --git a/gl/time.in.h b/gl/time.in.h
index 3ff16e3b..5bbccf76 100644
--- a/gl/time.in.h
+++ b/gl/time.in.h
@@ -1,6 +1,6 @@
 /* A more-standard <time.h>.
 
-   Copyright (C) 2007-2025 Free Software Foundation, Inc.
+   Copyright (C) 2007-2026 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
@@ -161,7 +161,6 @@ _GL_CXXALIAS_SYS (timespec_get, int, (struct timespec *ts, int base));
 _GL_CXXALIASWARN (timespec_get);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef timespec_get
 #  if HAVE_RAW_DECL_TIMESPEC_GET
 _GL_WARN_ON_USE (timespec_get, "timespec_get is unportable - "
                  "use gnulib module timespec_get for portability");
@@ -190,7 +189,6 @@ _GL_CXXALIAS_SYS (timespec_getres, int, (struct timespec *ts, int base));
 _GL_CXXALIASWARN (timespec_getres);
 # endif
 # elif defined GNULIB_POSIXCHECK
-#  undef timespec_getres
 #  if HAVE_RAW_DECL_TIMESPEC_GETRES
 _GL_WARN_ON_USE (timespec_getres, "timespec_getres is unportable - "
                  "use gnulib module timespec_getres for portability");
@@ -212,7 +210,6 @@ _GL_CXXALIAS_SYS (time, time_t, (time_t *__tp));
 _GL_CXXALIASWARN (time);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef time
 #  if HAVE_RAW_DECL_TIME
 _GL_WARN_ON_USE (time, "time has consistency problems - "
                  "use gnulib module time for portability");
@@ -243,7 +240,6 @@ _GL_CXXALIAS_SYS (nanosleep, int,
 #  endif
 _GL_CXXALIASWARN (nanosleep);
 # elif defined GNULIB_POSIXCHECK
-#  undef nanosleep
 #  if HAVE_RAW_DECL_NANOSLEEP
 _GL_WARN_ON_USE (nanosleep, "nanosleep is unportable - "
                  "use gnulib module nanosleep for portability");
@@ -284,7 +280,6 @@ _GL_CXXALIAS_SYS (tzset, void, (void));
 #  endif
 _GL_CXXALIASWARN (tzset);
 # elif defined GNULIB_POSIXCHECK
-#  undef tzset
 #  if HAVE_RAW_DECL_TZSET
 _GL_WARN_ON_USE (tzset, "tzset has portability problems - "
                  "use gnulib module tzset for portability");
@@ -306,7 +301,6 @@ _GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp));
 _GL_CXXALIASWARN (mktime);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef mktime
 #  if HAVE_RAW_DECL_MKTIME
 _GL_WARN_ON_USE (mktime, "mktime has portability problems - "
                  "use gnulib module mktime for portability");
@@ -362,12 +356,10 @@ _GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer,
 _GL_CXXALIASWARN (gmtime_r);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef localtime_r
 #  if HAVE_RAW_DECL_LOCALTIME_R
 _GL_WARN_ON_USE (localtime_r, "localtime_r is unportable - "
                  "use gnulib module time_r for portability");
 #  endif
-#  undef gmtime_r
 #  if HAVE_RAW_DECL_GMTIME_R
 _GL_WARN_ON_USE (gmtime_r, "gmtime_r is unportable - "
                  "use gnulib module time_r for portability");
@@ -393,7 +385,6 @@ _GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer));
 _GL_CXXALIASWARN (localtime);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef localtime
 #  if HAVE_RAW_DECL_LOCALTIME
 _GL_WARN_ON_USE (localtime, "localtime has portability problems - "
                  "use gnulib module localtime for portability");
@@ -430,7 +421,6 @@ _GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf,
                                      struct tm *restrict __tm));
 _GL_CXXALIASWARN (strptime);
 # elif defined GNULIB_POSIXCHECK
-#  undef strptime
 #  if HAVE_RAW_DECL_STRPTIME
 _GL_WARN_ON_USE (strptime, "strptime is unportable - "
                  "use gnulib module strptime for portability");
@@ -483,7 +473,6 @@ _GL_CXXALIAS_SYS (strftime, size_t,
 _GL_CXXALIASWARN (strftime);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef strftime
 #  if HAVE_RAW_DECL_STRFTIME
 _GL_WARN_ON_USE (strftime, "strftime has portability problems - "
                  "use gnulib module strftime-fixes for portability");
@@ -523,11 +512,18 @@ _GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name));
 #  endif
 
 /* tzfree (tz)
-   Frees a time zone object.
+   Free a time zone object, preserving errno.
    The argument must have been returned by tzalloc().  */
 #  if !@HAVE_TZALLOC@
 _GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz), );
 _GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz));
+#  else
+#   if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#    undef tzfree
+#    define tzfree rpl_tzfree
+#   endif
+_GL_FUNCDECL_RPL (tzfree, void, (timezone_t __tz), );
+_GL_CXXALIAS_RPL (tzfree, void, (timezone_t __tz));
 #  endif
 
 /* localtime_rz (tz, &t, &result)
@@ -611,7 +607,6 @@ _GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm));
 _GL_CXXALIASWARN (timegm);
 #  endif
 # elif defined GNULIB_POSIXCHECK
-#  undef timegm
 #  if HAVE_RAW_DECL_TIMEGM
 _GL_WARN_ON_USE (timegm, "timegm is unportable - "
                  "use gnulib module timegm for portability");
@@ -622,28 +617,24 @@ _GL_WARN_ON_USE (timegm, "timegm is unportable - "
    buffers when given outlandish struct tm values.  Portable
    applications should use strftime (or even sprintf) instead.  */
 # if defined GNULIB_POSIXCHECK
-#  undef asctime
 #  if HAVE_RAW_DECL_ASCTIME
 _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - "
                  "better use strftime (or even sprintf) instead");
 #  endif
 # endif
 # if defined GNULIB_POSIXCHECK
-#  undef asctime_r
 #  if HAVE_RAW_DECL_ASCTIME_R
 _GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - "
                  "better use strftime (or even sprintf) instead");
 #  endif
 # endif
 # if defined GNULIB_POSIXCHECK
-#  undef ctime
 #  if HAVE_RAW_DECL_CTIME
 _GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - "
                  "better use strftime (or even sprintf) instead");
 #  endif
 # endif
 # if defined GNULIB_POSIXCHECK
-#  undef ctime_r
 #  if HAVE_RAW_DECL_CTIME_R
 _GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - "
                  "better use strftime (or even sprintf) instead");