1 files changed, 32 insertions, 25 deletions

diff --git a/lib/gettimeofday.c b/lib/gettimeofday.c
index a11b1830c4c..36c7920afe6 100644
--- a/lib/gettimeofday.c
+++ b/lib/gettimeofday.c
@@ -1,19 +1,19 @@
 /* Provide gettimeofday for systems that don't have it or for which it's broken.
 
-   Copyright (C) 2001-2003, 2005-2007, 2009-2017 Free Software Foundation, Inc.
+   Copyright (C) 2001-2003, 2005-2007, 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 General Public License as published by
-   the Free Software Foundation; either version 3, 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 <https://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/>.  */
 
 /* written by Jim Meyering */
 
@@ -24,15 +24,23 @@
 
 #include <time.h>
 
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if defined _WIN32 && ! defined __CYGWIN__
 # define WINDOWS_NATIVE
 # include <windows.h>
 #endif
 
-#include "localtime-buffer.h"
-
 #ifdef WINDOWS_NATIVE
 
+/* Don't assume that UNICODE is not defined.  */
+# undef LoadLibrary
+# define LoadLibrary LoadLibraryA
+
+# if !(_WIN32_WINNT >= _WIN32_WINNT_WIN8)
+
+/* Avoid warnings from gcc -Wcast-function-type.  */
+#  define GetProcAddress \
+    (void *) GetProcAddress
+
 /* GetSystemTimePreciseAsFileTime was introduced only in Windows 8.  */
 typedef void (WINAPI * GetSystemTimePreciseAsFileTimeFuncType) (FILETIME *lpTime);
 static GetSystemTimePreciseAsFileTimeFuncType GetSystemTimePreciseAsFileTimeFunc = NULL;
@@ -45,11 +53,17 @@ initialize (void)
   if (kernel32 != NULL)
     {
       GetSystemTimePreciseAsFileTimeFunc =
-	(GetSystemTimePreciseAsFileTimeFuncType) GetProcAddress (kernel32, "GetSystemTimePreciseAsFileTime");
+        (GetSystemTimePreciseAsFileTimeFuncType) GetProcAddress (kernel32, "GetSystemTimePreciseAsFileTime");
     }
   initialized = TRUE;
 }
 
+# else
+
+#  define GetSystemTimePreciseAsFileTimeFunc GetSystemTimePreciseAsFileTime
+
+# endif
+
 #endif
 
 /* This is a wrapper for gettimeofday.  It is used only on systems
@@ -68,10 +82,10 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz)
 
   /* On native Windows, there are two ways to get the current time:
      GetSystemTimeAsFileTime
-     <https://msdn.microsoft.com/en-us/library/ms724397.aspx>
+     <https://docs.microsoft.com/en-us/windows/desktop/api/sysinfoapi/nf-sysinfoapi-getsystemtimeasfiletime>
      or
      GetSystemTimePreciseAsFileTime
-     <https://msdn.microsoft.com/en-us/library/hh706895.aspx>.
+     <https://docs.microsoft.com/en-us/windows/desktop/api/sysinfoapi/nf-sysinfoapi-getsystemtimepreciseasfiletime>.
      GetSystemTimeAsFileTime produces values that jump by increments of
      15.627 milliseconds (!) on average.
      Whereas GetSystemTimePreciseAsFileTime values usually jump by 1 or 2
@@ -80,15 +94,17 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz)
      <http://www.windowstimestamp.com/description>.  */
   FILETIME current_time;
 
+# if !(_WIN32_WINNT >= _WIN32_WINNT_WIN8)
   if (!initialized)
     initialize ();
+# endif
   if (GetSystemTimePreciseAsFileTimeFunc != NULL)
     GetSystemTimePreciseAsFileTimeFunc (&current_time);
   else
     GetSystemTimeAsFileTime (&current_time);
 
   /* Convert from FILETIME to 'struct timeval'.  */
-  /* FILETIME: <https://msdn.microsoft.com/en-us/library/ms724284.aspx> */
+  /* FILETIME: <https://docs.microsoft.com/en-us/windows/desktop/api/minwinbase/ns-minwinbase-filetime> */
   ULONGLONG since_1601 =
     ((ULONGLONG) current_time.dwHighDateTime << 32)
     | (ULONGLONG) current_time.dwLowDateTime;
@@ -105,11 +121,6 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz)
 #else
 
 # if HAVE_GETTIMEOFDAY
-#  if GETTIMEOFDAY_CLOBBERS_LOCALTIME
-  /* Save and restore the contents of the buffer used for localtime's
-     result around the call to gettimeofday.  */
-  struct tm save = *localtime_buffer_addr;
-#  endif
 
 #  if defined timeval /* 'struct timeval' overridden by gnulib?  */
 #   undef timeval
@@ -124,10 +135,6 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz)
   int result = gettimeofday (tv, (struct timezone *) tz);
 #  endif
 
-#  if GETTIMEOFDAY_CLOBBERS_LOCALTIME
-  *localtime_buffer_addr = save;
-#  endif
-
   return result;
 
 # else