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Avoid dependency on system tzdata
This commit is contained in:
Alexey Milovidov
parent
0a9c49beee
commit
45b5afa131
@ -2,16 +2,19 @@
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#include <cctz/civil_time.h>
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#include <cctz/time_zone.h>
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#include <cctz/zone_info_source.h>
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#include <common/unaligned.h>
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#include <Poco/Exception.h>
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#include <dlfcn.h>
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#include <algorithm>
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#include <cassert>
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#include <chrono>
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#include <cstring>
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#include <iostream>
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#include <memory>
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#define DATE_LUT_MIN 0
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namespace
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{
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@ -47,7 +50,7 @@ DateLUTImpl::DateLUTImpl(const std::string & time_zone_)
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assert(inside_main);
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size_t i = 0;
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time_t start_of_day = DATE_LUT_MIN;
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time_t start_of_day = 0;
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cctz::time_zone cctz_time_zone;
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if (!cctz::load_time_zone(time_zone, &cctz_time_zone))
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@ -157,3 +160,70 @@ DateLUTImpl::DateLUTImpl(const std::string & time_zone_)
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years_months_lut[year_months_lut_index] = first_day_of_last_month;
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}
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}
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/// Prefer to load timezones from blobs linked to the binary.
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/// The blobs are provided by "tzdata" library.
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/// This allows to avoid dependency on system tzdata.
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namespace cctz_extension
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{
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namespace
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{
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class Source : public cctz::ZoneInfoSource
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{
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public:
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Source(const char * data_, size_t size_) : data(data_), size(size_) {}
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size_t Read(void * buf, size_t bytes) override
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{
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if (bytes > size)
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bytes = size;
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memcpy(buf, data, bytes);
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data += bytes;
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size -= bytes;
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return bytes;
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}
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int Skip(size_t offset) override
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{
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if (offset <= size)
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{
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data += offset;
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size -= offset;
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return 0;
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}
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else
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{
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errno = EINVAL;
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return -1;
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}
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}
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private:
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const char * data;
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size_t size;
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};
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std::unique_ptr<cctz::ZoneInfoSource> custom_factory(
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const std::string & name,
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const std::function<std::unique_ptr<cctz::ZoneInfoSource>(const std::string & name)> & fallback)
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{
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std::string name_replaced = name;
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std::replace(name_replaced.begin(), name_replaced.end(), '/', '_');
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std::replace(name_replaced.begin(), name_replaced.end(), '-', '_');
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/// These are the names that are generated by "ld -r -b binary"
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std::string symbol_name_data = "_binary_" + name_replaced + "_start";
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std::string symbol_name_size = "_binary_" + name_replaced + "_size";
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const void * sym_data = dlsym(RTLD_DEFAULT, symbol_name_data.c_str());
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const void * sym_size = dlsym(RTLD_DEFAULT, symbol_name_size.c_str());
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if (sym_data && sym_size)
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return std::make_unique<Source>(static_cast<const char *>(sym_data), unalignedLoad<size_t>(&sym_size));
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return fallback(name);
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}
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}
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ZoneInfoSourceFactory zone_info_source_factory = custom_factory;
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}
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@ -23,6 +23,593 @@ if (USE_INTERNAL_CCTZ)
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# yes, need linux, because bsd check inside linux in time_zone_libc.cc:24
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target_compile_definitions (cctz PRIVATE __USE_BSD linux _XOPEN_SOURCE=600)
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endif ()
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# Build a libray with embedded tzdata
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set (TIMEZONES
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Africa/Abidjan
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Africa/Accra
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Africa/Addis_Ababa
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Africa/Algiers
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Africa/Asmara
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Africa/Asmera
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Africa/Bamako
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Africa/Bangui
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Africa/Banjul
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Africa/Bissau
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Africa/Blantyre
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Africa/Brazzaville
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Africa/Bujumbura
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Africa/Cairo
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Africa/Casablanca
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Africa/Ceuta
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Africa/Conakry
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Africa/Dakar
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Africa/Dar_es_Salaam
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Africa/Djibouti
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Africa/Douala
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Africa/El_Aaiun
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Africa/Freetown
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Africa/Gaborone
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Africa/Harare
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Africa/Johannesburg
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Africa/Juba
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Africa/Kampala
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Africa/Khartoum
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Africa/Kigali
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Africa/Kinshasa
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Africa/Lagos
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Africa/Libreville
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Africa/Lome
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Africa/Luanda
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Africa/Lubumbashi
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Africa/Lusaka
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Africa/Malabo
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Africa/Maputo
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Africa/Maseru
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Africa/Mbabane
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Africa/Mogadishu
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Africa/Monrovia
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Africa/Nairobi
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Africa/Ndjamena
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Africa/Niamey
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Africa/Nouakchott
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Africa/Ouagadougou
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Africa/Porto-Novo
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Africa/Sao_Tome
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Africa/Timbuktu
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Africa/Tripoli
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Africa/Tunis
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Africa/Windhoek
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America/Adak
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America/Anchorage
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America/Anguilla
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America/Antigua
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America/Araguaina
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America/Argentina/Buenos_Aires
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America/Argentina/Catamarca
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America/Argentina/ComodRivadavia
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America/Argentina/Cordoba
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America/Argentina/Jujuy
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America/Argentina/La_Rioja
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America/Argentina/Mendoza
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America/Argentina/Rio_Gallegos
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America/Argentina/Salta
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America/Argentina/San_Juan
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America/Argentina/San_Luis
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America/Argentina/Tucuman
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America/Argentina/Ushuaia
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America/Aruba
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America/Asuncion
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America/Atikokan
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America/Atka
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America/Bahia
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America/Bahia_Banderas
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America/Barbados
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America/Belem
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America/Belize
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America/Blanc-Sablon
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America/Boa_Vista
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America/Bogota
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America/Boise
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America/Buenos_Aires
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America/Cambridge_Bay
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America/Campo_Grande
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America/Cancun
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America/Caracas
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America/Catamarca
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America/Cayenne
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America/Cayman
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America/Chicago
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America/Chihuahua
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America/Coral_Harbour
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America/Cordoba
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America/Costa_Rica
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America/Creston
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America/Cuiaba
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America/Curacao
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America/Danmarkshavn
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America/Dawson
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America/Dawson_Creek
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America/Denver
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America/Detroit
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America/Dominica
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America/Edmonton
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America/Eirunepe
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America/El_Salvador
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America/Ensenada
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America/Fortaleza
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America/Fort_Nelson
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America/Fort_Wayne
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America/Glace_Bay
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America/Godthab
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America/Goose_Bay
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America/Grand_Turk
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America/Grenada
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America/Guadeloupe
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America/Guatemala
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America/Guayaquil
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America/Guyana
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America/Halifax
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America/Havana
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America/Hermosillo
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America/Indiana/Indianapolis
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America/Indiana/Knox
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America/Indiana/Marengo
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America/Indiana/Petersburg
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America/Indianapolis
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America/Indiana/Tell_City
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America/Indiana/Vevay
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America/Indiana/Vincennes
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America/Indiana/Winamac
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America/Inuvik
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America/Iqaluit
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America/Jamaica
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America/Jujuy
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America/Juneau
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America/Kentucky/Louisville
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America/Kentucky/Monticello
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America/Knox_IN
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America/Kralendijk
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America/La_Paz
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America/Lima
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America/Los_Angeles
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America/Louisville
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America/Lower_Princes
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America/Maceio
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America/Managua
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America/Manaus
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America/Marigot
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America/Martinique
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America/Matamoros
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America/Mazatlan
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America/Mendoza
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America/Menominee
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America/Merida
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America/Metlakatla
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America/Mexico_City
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America/Miquelon
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America/Moncton
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America/Monterrey
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America/Montevideo
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America/Montreal
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America/Montserrat
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America/Nassau
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America/New_York
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America/Nipigon
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America/Nome
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America/Noronha
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America/North_Dakota/Beulah
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America/North_Dakota/Center
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America/North_Dakota/New_Salem
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America/Ojinaga
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America/Panama
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America/Pangnirtung
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America/Paramaribo
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America/Phoenix
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America/Port-au-Prince
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America/Porto_Acre
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America/Port_of_Spain
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America/Porto_Velho
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America/Puerto_Rico
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America/Punta_Arenas
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America/Rainy_River
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America/Rankin_Inlet
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America/Recife
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America/Regina
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America/Resolute
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America/Rio_Branco
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America/Rosario
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America/Santa_Isabel
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America/Santarem
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America/Santiago
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America/Santo_Domingo
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America/Sao_Paulo
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America/Scoresbysund
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America/Shiprock
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America/Sitka
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America/St_Barthelemy
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America/St_Johns
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America/St_Kitts
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America/St_Lucia
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America/St_Thomas
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America/St_Vincent
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America/Swift_Current
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America/Tegucigalpa
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America/Thule
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America/Thunder_Bay
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America/Tijuana
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America/Toronto
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America/Tortola
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America/Vancouver
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America/Virgin
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America/Whitehorse
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America/Winnipeg
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America/Yakutat
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America/Yellowknife
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Antarctica/Casey
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Antarctica/Davis
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Antarctica/DumontDUrville
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Antarctica/Macquarie
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Antarctica/Mawson
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Antarctica/McMurdo
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Antarctica/Palmer
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Antarctica/Rothera
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Antarctica/South_Pole
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Antarctica/Syowa
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Antarctica/Troll
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Antarctica/Vostok
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Arctic/Longyearbyen
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Asia/Aden
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Asia/Almaty
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Asia/Amman
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Asia/Anadyr
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Asia/Aqtau
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Asia/Aqtobe
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Asia/Ashgabat
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Asia/Ashkhabad
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Asia/Atyrau
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Asia/Baghdad
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Asia/Bahrain
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Asia/Baku
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Asia/Bangkok
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Asia/Barnaul
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Asia/Beirut
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Asia/Bishkek
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Asia/Brunei
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Asia/Calcutta
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Asia/Chita
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Asia/Choibalsan
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Asia/Chongqing
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Asia/Chungking
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Asia/Colombo
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Asia/Dacca
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Asia/Damascus
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Asia/Dhaka
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Asia/Dili
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Asia/Dubai
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Asia/Dushanbe
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Asia/Famagusta
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Asia/Gaza
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Asia/Harbin
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Asia/Hebron
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Asia/Ho_Chi_Minh
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Asia/Hong_Kong
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Asia/Hovd
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Asia/Irkutsk
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Asia/Istanbul
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Asia/Jakarta
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Asia/Jayapura
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Asia/Jerusalem
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Asia/Kabul
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Asia/Kamchatka
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Asia/Karachi
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Asia/Kashgar
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Asia/Kathmandu
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Asia/Katmandu
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Asia/Khandyga
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Asia/Kolkata
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Asia/Krasnoyarsk
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Asia/Kuala_Lumpur
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Asia/Kuching
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Asia/Kuwait
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Asia/Macao
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Asia/Macau
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Asia/Magadan
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Asia/Makassar
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Asia/Manila
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Asia/Muscat
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Asia/Nicosia
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Asia/Novokuznetsk
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Asia/Novosibirsk
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Asia/Omsk
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Asia/Oral
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Asia/Phnom_Penh
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Asia/Pontianak
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Asia/Pyongyang
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Asia/Qatar
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Asia/Qostanay
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Asia/Qyzylorda
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Asia/Rangoon
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Asia/Riyadh
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Asia/Saigon
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Asia/Sakhalin
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Asia/Samarkand
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Asia/Seoul
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Asia/Shanghai
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Asia/Singapore
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Asia/Srednekolymsk
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Asia/Taipei
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Asia/Tashkent
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Asia/Tbilisi
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Asia/Tehran
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Asia/Tel_Aviv
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Asia/Thimbu
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Asia/Thimphu
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Asia/Tokyo
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Asia/Tomsk
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Asia/Ujung_Pandang
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Asia/Ulaanbaatar
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Asia/Ulan_Bator
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Asia/Urumqi
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Asia/Ust-Nera
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Asia/Vientiane
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Asia/Vladivostok
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Asia/Yakutsk
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Asia/Yangon
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Asia/Yekaterinburg
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Asia/Yerevan
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Atlantic/Azores
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Atlantic/Bermuda
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Atlantic/Canary
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Atlantic/Cape_Verde
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Atlantic/Faeroe
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Atlantic/Faroe
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Atlantic/Jan_Mayen
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Atlantic/Madeira
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Atlantic/Reykjavik
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Atlantic/South_Georgia
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Atlantic/Stanley
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Atlantic/St_Helena
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Australia/ACT
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Australia/Adelaide
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Australia/Brisbane
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Australia/Broken_Hill
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Australia/Canberra
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Australia/Currie
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Australia/Darwin
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Australia/Eucla
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Australia/Hobart
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Australia/LHI
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Australia/Lindeman
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Australia/Lord_Howe
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Australia/Melbourne
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Australia/North
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Australia/NSW
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Australia/Perth
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Australia/Queensland
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Australia/South
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Australia/Sydney
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Australia/Tasmania
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Australia/Victoria
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Australia/West
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Australia/Yancowinna
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||||
Brazil/Acre
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Brazil/DeNoronha
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Brazil/East
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Brazil/West
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Canada/Atlantic
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Canada/Central
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Canada/Eastern
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Canada/Mountain
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Canada/Newfoundland
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||||
Canada/Pacific
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||||
Canada/Saskatchewan
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Canada/Yukon
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CET
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Chile/Continental
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Chile/EasterIsland
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CST6CDT
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Cuba
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EET
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Egypt
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Eire
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EST
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EST5EDT
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Etc/GMT
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Etc/Greenwich
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Etc/UCT
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Etc/Universal
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Etc/UTC
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Etc/Zulu
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Europe/Amsterdam
|
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Europe/Andorra
|
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Europe/Astrakhan
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Europe/Athens
|
||||
Europe/Belfast
|
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Europe/Belgrade
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Europe/Berlin
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||||
Europe/Bratislava
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Europe/Brussels
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Europe/Bucharest
|
||||
Europe/Budapest
|
||||
Europe/Busingen
|
||||
Europe/Chisinau
|
||||
Europe/Copenhagen
|
||||
Europe/Dublin
|
||||
Europe/Gibraltar
|
||||
Europe/Guernsey
|
||||
Europe/Helsinki
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||||
Europe/Isle_of_Man
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Europe/Istanbul
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||||
Europe/Jersey
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||||
Europe/Kaliningrad
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||||
Europe/Kiev
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Europe/Kirov
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||||
Europe/Lisbon
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||||
Europe/Ljubljana
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Europe/London
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Europe/Luxembourg
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||||
Europe/Madrid
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||||
Europe/Malta
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||||
Europe/Mariehamn
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||||
Europe/Minsk
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Europe/Monaco
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Europe/Moscow
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||||
Europe/Nicosia
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||||
Europe/Oslo
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||||
Europe/Paris
|
||||
Europe/Podgorica
|
||||
Europe/Prague
|
||||
Europe/Riga
|
||||
Europe/Rome
|
||||
Europe/Samara
|
||||
Europe/San_Marino
|
||||
Europe/Sarajevo
|
||||
Europe/Saratov
|
||||
Europe/Simferopol
|
||||
Europe/Skopje
|
||||
Europe/Sofia
|
||||
Europe/Stockholm
|
||||
Europe/Tallinn
|
||||
Europe/Tirane
|
||||
Europe/Tiraspol
|
||||
Europe/Ulyanovsk
|
||||
Europe/Uzhgorod
|
||||
Europe/Vaduz
|
||||
Europe/Vatican
|
||||
Europe/Vienna
|
||||
Europe/Vilnius
|
||||
Europe/Volgograd
|
||||
Europe/Warsaw
|
||||
Europe/Zagreb
|
||||
Europe/Zaporozhye
|
||||
Europe/Zurich
|
||||
Factory
|
||||
GB
|
||||
GB-Eire
|
||||
GMT
|
||||
GMT0
|
||||
Greenwich
|
||||
Hongkong
|
||||
HST
|
||||
Iceland
|
||||
Indian/Antananarivo
|
||||
Indian/Chagos
|
||||
Indian/Christmas
|
||||
Indian/Cocos
|
||||
Indian/Comoro
|
||||
Indian/Kerguelen
|
||||
Indian/Mahe
|
||||
Indian/Maldives
|
||||
Indian/Mauritius
|
||||
Indian/Mayotte
|
||||
Indian/Reunion
|
||||
Iran
|
||||
Israel
|
||||
Jamaica
|
||||
Japan
|
||||
Kwajalein
|
||||
Libya
|
||||
MET
|
||||
Mexico/BajaNorte
|
||||
Mexico/BajaSur
|
||||
Mexico/General
|
||||
MST
|
||||
MST7MDT
|
||||
Navajo
|
||||
NZ
|
||||
NZ-CHAT
|
||||
Pacific/Apia
|
||||
Pacific/Auckland
|
||||
Pacific/Bougainville
|
||||
Pacific/Chatham
|
||||
Pacific/Chuuk
|
||||
Pacific/Easter
|
||||
Pacific/Efate
|
||||
Pacific/Enderbury
|
||||
Pacific/Fakaofo
|
||||
Pacific/Fiji
|
||||
Pacific/Funafuti
|
||||
Pacific/Galapagos
|
||||
Pacific/Gambier
|
||||
Pacific/Guadalcanal
|
||||
Pacific/Guam
|
||||
Pacific/Honolulu
|
||||
Pacific/Johnston
|
||||
Pacific/Kiritimati
|
||||
Pacific/Kosrae
|
||||
Pacific/Kwajalein
|
||||
Pacific/Majuro
|
||||
Pacific/Marquesas
|
||||
Pacific/Midway
|
||||
Pacific/Nauru
|
||||
Pacific/Niue
|
||||
Pacific/Norfolk
|
||||
Pacific/Noumea
|
||||
Pacific/Pago_Pago
|
||||
Pacific/Palau
|
||||
Pacific/Pitcairn
|
||||
Pacific/Pohnpei
|
||||
Pacific/Ponape
|
||||
Pacific/Port_Moresby
|
||||
Pacific/Rarotonga
|
||||
Pacific/Saipan
|
||||
Pacific/Samoa
|
||||
Pacific/Tahiti
|
||||
Pacific/Tarawa
|
||||
Pacific/Tongatapu
|
||||
Pacific/Truk
|
||||
Pacific/Wake
|
||||
Pacific/Wallis
|
||||
Pacific/Yap
|
||||
Poland
|
||||
Portugal
|
||||
PRC
|
||||
PST8PDT
|
||||
ROC
|
||||
ROK
|
||||
Singapore
|
||||
Turkey
|
||||
UCT
|
||||
Universal
|
||||
US/Alaska
|
||||
US/Aleutian
|
||||
US/Arizona
|
||||
US/Central
|
||||
US/Eastern
|
||||
US/East-Indiana
|
||||
US/Hawaii
|
||||
US/Indiana-Starke
|
||||
US/Michigan
|
||||
US/Mountain
|
||||
US/Pacific
|
||||
US/Samoa
|
||||
UTC
|
||||
WET
|
||||
W-SU
|
||||
Zulu)
|
||||
|
||||
set(TZDIR ${LIBRARY_DIR}/testdata/zoneinfo)
|
||||
set(TZ_OBJS)
|
||||
|
||||
foreach(TIMEZONE ${TIMEZONES})
|
||||
string(REPLACE "/" "_" TIMEZONE_ID ${TIMEZONE})
|
||||
set(TZ_OBJ ${TIMEZONE_ID}.o)
|
||||
set(TZ_OBJS ${TZ_OBJS} ${TZ_OBJ})
|
||||
|
||||
# https://stackoverflow.com/questions/14776463/compile-and-add-an-object-file-from-a-binary-with-cmake
|
||||
add_custom_command(OUTPUT ${TZ_OBJ}
|
||||
COMMAND cd ${TZDIR} && ld -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ} ${TIMEZONE}
|
||||
COMMAND objcopy --rename-section .data=.rodata,alloc,load,readonly,data,contents
|
||||
${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ} ${CMAKE_CURRENT_BINARY_DIR}/${TZ_OBJ})
|
||||
|
||||
set_source_files_properties(${TZ_OBJ} PROPERTIES EXTERNAL_OBJECT true GENERATED true)
|
||||
endforeach(TIMEZONE)
|
||||
|
||||
add_library(tzdata STATIC ${TZ_OBJS})
|
||||
target_link_libraries(cctz -Wl,--whole-archive tzdata -Wl,--no-whole-archive) # whole-archive prevents symbols from being discarded
|
||||
|
||||
else ()
|
||||
find_library (LIBRARY_CCTZ cctz)
|
||||
find_path (INCLUDE_CCTZ NAMES cctz/civil_time.h)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user