X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/713a0efc617935b1da6151d98ff111e3bde52c3d..12447831a8ebc506f730cafac6f6ef13f243b7d2:/src/common/datetime.cpp

diff --git a/src/common/datetime.cpp b/src/common/datetime.cpp
index 23080fef24..229cd989be 100644
--- a/src/common/datetime.cpp
+++ b/src/common/datetime.cpp
@@ -97,25 +97,33 @@
     #undef HAVE_STRPTIME
 #endif // broken strptime()
 
-#ifndef WX_TIMEZONE
+#if !defined(WX_TIMEZONE) && !defined(WX_GMTOFF_IN_TM)
     #if defined(__BORLANDC__) || defined(__MINGW32__) || defined(__VISAGECPP__)
         #define WX_TIMEZONE _timezone
     #elif defined(__MWERKS__)
         long wxmw_timezone = 28800;
-        #define WX_TIMEZONE wxmw_timezone;
+        #define WX_TIMEZONE wxmw_timezone
     #elif defined(__DJGPP__)
         #include <sys/timeb.h>
+        #include <values.h>
         static long wxGetTimeZone()
         {
-            struct timeb tb;
-            ftime(&tb);
-            return tb.timezone;
+            static long timezone = MAXLONG; // invalid timezone
+            if (timezone == MAXLONG)
+            {
+                struct timeb tb;
+                ftime(&tb);
+                timezone = tb.timezone;
+            }
+            return timezone;
         }
         #define WX_TIMEZONE wxGetTimeZone()
+    #elif defined(__DARWIN__)
+        #define WX_GMTOFF_IN_TM
     #else // unknown platform - try timezone
         #define WX_TIMEZONE timezone
     #endif
-#endif // !WX_TIMEZONE
+#endif // !WX_TIMEZONE && !WX_GMTOFF_IN_TM
 
 // ----------------------------------------------------------------------------
 // macros
@@ -205,10 +213,7 @@ static const wxDateTime::wxDateTime_t gs_cumulatedDays[2][MONTHS_IN_YEAR] =
 
 // in the fine tradition of ANSI C we use our equivalent of (time_t)-1 to
 // indicate an invalid wxDateTime object
-
-static const wxDateTime gs_dtDefault;
-
-const wxDateTime& wxDefaultDateTime = gs_dtDefault;
+const wxDateTime wxDefaultDateTime;
 
 wxDateTime::Country wxDateTime::ms_country = wxDateTime::Country_Unknown;
 
@@ -258,20 +263,31 @@ static int GetTimeZone()
 {
     // set to TRUE when the timezone is set
     static bool s_timezoneSet = FALSE;
-
+#ifdef WX_GMTOFF_IN_TM
+    static long gmtoffset = LONG_MAX; // invalid timezone
+#endif
+    
     wxCRIT_SECT_LOCKER(lock, gs_critsectTimezone);
 
     if ( !s_timezoneSet )
     {
         // just call localtime() instead of figuring out whether this system
         // supports tzset(), _tzset() or something else
-        time_t                 t = 0;
+        time_t     t = 0;
+        struct tm *tm;
 
-        (void)localtime(&t);
+        tm = localtime(&t);
         s_timezoneSet = TRUE;
+#ifdef WX_GMTOFF_IN_TM
+        gmtoffset = tm->tm_gmtoff;
+#endif
     }
 
+#ifdef WX_GMTOFF_IN_TM
+    return (int)gmtoffset;
+#else
     return (int)WX_TIMEZONE;
+#endif
 }
 
 // return the integral part of the JDN for the midnight of the given date (to