* localtime.cc (tzset): Call tzsetwall only if it hasn't been
called before.
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@@ -1476,7 +1476,8 @@ tzset P((void))
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const char * name = getenv("TZ");
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if (name == NULL) {
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tzsetwall();
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if (!lcl_is_set)
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tzsetwall();
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return;
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}
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