-#if defined(__MINGW32__)
- time_t t0;
- struct tm *tp;
- time(&t0);
- tp = localtime(&t0);
-# if __GNUC__ == 2 && __GNUC_MINOR__ <= 8
- // gcc 2.8.x or earlier
- timeb tz;
- ftime(& tz);
- *timeZone = tz._timezone;
-# else
- // egcs or gcc 2.95
- *timeZone = _timezone; // tp->tm_gmtoff; // ???
-# endif
- *dstObserved = tp->tm_isdst;
-#else
-// not mingw32...
-#if (((defined(__SYSV__) && !defined(__HPUX__)) || defined(__MSDOS__) || defined(__WXMSW__) || defined(__WXPM__)) \
- && !defined(__GNUWIN32__) && !defined(__MWERKS__) )
-# if defined(__BORLANDC__)
- /* Borland uses underscores */
- *timeZone = _timezone;
- *dstObserved = _daylight;
-# elif defined(__SALFORDC__)
- *timeZone = _timezone;
- *dstObserved = daylight;
-# elif defined(__VISAGECPP__)
- *timeZone = _timezone;
- *dstObserved = daylight;
-# else
- *timeZone = timezone;
- *dstObserved = daylight;
-# endif
-#elif defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || defined(__MWERKS__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
-# ifndef __MWERKS__ // shouldn't this be one scope below ?
- struct timeval tp;
-# endif
-# if defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32))
- struct timezone tz;
- gettimeofday(&tp, &tz);
- *timeZone = 60*(tz.tz_minuteswest);
- *dstObserved = tz.tz_dsttime;
-# else
- time_t t0;
- struct tm *tp;
- time(&t0);
- tp = localtime(&t0);
-# ifndef __MWERKS__
- *timeZone = tp->tm_gmtoff; // ???
-# else
- *timeZone = 0 ;
-# endif
- *dstObserved = tp->tm_isdst;
-#endif
-#elif defined(__WXSTUBS__)
- return FALSE;
-#else
-// #error wxGetLocalTime not implemented.
- struct timeval tp;
- struct timezone tz;
- gettimeofday(&tp, &tz);
- *timeZone = 60*(tz.tz_minuteswest);
- *dstObserved = tz.tz_dsttime;
-#endif
-#endif
- // __MINGW32__
- return TRUE;
+#if defined(HAVE_LOCALTIME) && defined(WX_GMTOFF_IN_TM)
+ time_t t0 = time(&t0);
+ if ( t0 != (time_t)-1 )
+ {
+ struct tm *tm = localtime(&t0);
+
+ if ( tm )
+ {
+ *timeZone = tm->tm_gmtoff;
+ *dstObserved = tm->tm_isdst;
+
+ return TRUE;
+ }
+ }
+#elif defined(HAVE_GETTIMEOFDAY) && !defined(WX_GETTIMEOFDAY_NO_TZ)
+ struct timeval tp;
+ struct timezone tz;
+ if ( gettimeofday(&tp, &tz) != -1 )
+ {
+ *timeZone = 60*tz.tz_minuteswest;
+ *dstObserved = tz.tz_dsttime;
+
+ return TRUE;
+ }
+#elif defined(HAVE_FTIME)
+ struct timeb tb;
+ if ( ftime(&tb) == 0 )
+ {
+ *timeZone = 60*tb.timezone;
+ *dstObserved = tb.dstflag;
+ }
+#else // no standard function return tz info
+ // special hacks for known compilers
+ #if defined(__BORLANDC__) || defined(__VISUALC__)
+ *timeZone = _timezone;
+ *dstObserved = _daylight;
+ #elif defined(__SALFORDC__)
+ *timeZone = _timezone;
+ *dstObserved = daylight;
+ #elif defined(__VISAGECPP__)
+ *timeZone = _timezone;
+ *dstObserved = daylight;
+ #elif defined(__WIN32__)
+ TIME_ZONE_INFORMATION tzInfo;
+ switch ( GetTimeZoneInformation(&tzInfo) )
+ {
+ default:
+ wxFAIL_MSG(_T("unknown GetTimeZoneInformation return code"));
+ // fall through
+
+ case TIME_ZONE_ID_UNKNOWN:
+ case TIME_ZONE_ID_STANDARD:
+ *dstObserved = FALSE;
+ break;
+
+ case TIME_ZONE_ID_DAYLIGHT:
+ *dstObserved = TRUE;
+ break;
+ }
+
+ *timeZone = 60*tzInfo.Bias;
+ #else
+ wxFAIL_MSG(_T("wxGetLocalTime() not implemented"));
+ #endif // compiler
+#endif // all ways in the known Universe to get tz info
+
+ return FALSE;