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From f489997fcb7e2d93ba46279f5a628006bbac88e9 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 20 Aug 2015 12:16:13 +0200
Subject: [PATCH 34/47] timedatectl: when no timezone is set consider UTC the
 default

This fixes #993, and ensures that the libc does not consider any
old timezone information into account, that was set earlier.
---
 src/timedate/timedatectl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
index 8ec6adb..1c3f03c 100644
--- a/src/timedate/timedatectl.c
+++ b/src/timedate/timedatectl.c
@@ -96,7 +96,7 @@ static void print_status_info(const StatusInfo *i) {
                 old_tz = strdupa(tz);
 
         /* Set the new $TZ */
-        if (i->timezone && setenv("TZ", i->timezone, true) < 0)
+        if (setenv("TZ", isempty(i->timezone) ? "UTC" : i->timezone, true) < 0)
                 log_warning_errno(errno, "Failed to set TZ environment variable, ignoring: %m");
         else
                 tzset();
-- 
2.5.0