From 5d6acc5c3f6271db79fbb8b481981d3cf0c5c27a Mon Sep 17 00:00:00 2001
From: Dana Robinson <43805+derobins@users.noreply.github.com>
Date: Mon, 26 Feb 2024 12:35:23 -0800
Subject: Remove check for gettimeofday + tz in CMake (#4045)

This is not used in the library
---
 config/cmake/ConfigureChecks.cmake |  2 --
 config/cmake/HDFTests.c            | 23 -----------------------
 2 files changed, 25 deletions(-)

diff --git a/config/cmake/ConfigureChecks.cmake b/config/cmake/ConfigureChecks.cmake
index df28f76..37f306e 100644
--- a/config/cmake/ConfigureChecks.cmake
+++ b/config/cmake/ConfigureChecks.cmake
@@ -78,7 +78,6 @@ if (WINDOWS)
   endif ()
   if (NOT UNIX AND NOT CYGWIN)
     set (${HDF_PREFIX}_HAVE_GETCONSOLESCREENBUFFERINFO 1)
-    set (${HDF_PREFIX}_GETTIMEOFDAY_GIVES_TZ 1)
     set (${HDF_PREFIX}_HAVE_TIMEZONE 1)
     set (${HDF_PREFIX}_HAVE_GETTIMEOFDAY 1)
     set (${HDF_PREFIX}_HAVE_LIBWS2_32 1)
@@ -396,7 +395,6 @@ if (MINGW OR NOT WINDOWS)
   CHECK_FUNCTION_EXISTS (gettimeofday      ${HDF_PREFIX}_HAVE_GETTIMEOFDAY)
   foreach (time_test
 #      HAVE_TIMEZONE
-      GETTIMEOFDAY_GIVES_TZ
       HAVE_TM_ZONE
       HAVE_STRUCT_TM_TM_ZONE
   )
diff --git a/config/cmake/HDFTests.c b/config/cmake/HDFTests.c
index 3897390..095f113 100644
--- a/config/cmake/HDFTests.c
+++ b/config/cmake/HDFTests.c
@@ -175,29 +175,6 @@ int main(int argc, char **argv)
 }
 #endif
 
-#ifdef GETTIMEOFDAY_GIVES_TZ
-#include <time.h>
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-int main(void)
-{
-    struct timeval tv;
-    struct timezone tz;
-
-    tz.tz_minuteswest = 7777;  /* Initialize to an unreasonable number */
-    tz.tz_dsttime = 7;
-
-    gettimeofday(&tv, &tz);
-
-    /* Check whether the function returned any value at all */
-    if (tz.tz_minuteswest == 7777 && tz.tz_dsttime == 7)
-        return 1;
-    else
-        return 0;
-}
-#endif
-
 #ifdef HAVE_IOEO
 
 #include <windows.h>
-- 
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