> Could it be rather a problem with summer time? ECL relies on the C library
> for the timezone and the summer time (see src/c/mislib.lsp) and it seems to
> work for Spain
Maybe. Last year, Russia hasn't summer/winter time transition.
I have read the code src/lisp/mislib.lsp and found ECL don't uses
tzset/timezone for time zone detection (HAVE_TZSET set to 1). I debug function
get-local-time-zone, it return -3 instead of -4.
I found in source next code
#if 0 && defined(HAVE_TZSET)
tzset();
mw = timezone/60;
#endif
Why 0?
Simple test code 'tzset(); timezone/60/60'; evaluates in '-4'. So, problem in:
struct tm ltm, gtm;
time_t when = 0L;
ltm = *localtime(&when);
gtm = *gmtime(&when);
mw = (gtm.tm_min + 60 * gtm.tm_hour) - (ltm.tm_min + 60 * ltm.tm_hour);
if ((gtm.tm_wday + 1) % 7 == ltm.tm_wday)
mw -= 24*60;
else if (gtm.tm_wday == (ltm.tm_wday + 1) % 7)
mw += 24*60;
But i don't understand this code :(
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