From c5437c6e00d7e1a62a6ed13a729497aa04a84ca9 Mon Sep 17 00:00:00 2001
From: Yoshito Umaoka <y.umaoka@gmail.com>
Date: Mon, 21 May 2018 00:39:51 +0000
Subject: [PATCH] ICU-13300 Added thread safety note to
 TimeZone::detectHostTimeZone().

X-SVN-Rev: 41421
---
 icu4c/source/i18n/unicode/timezone.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/icu4c/source/i18n/unicode/timezone.h b/icu4c/source/i18n/unicode/timezone.h
index 83dee317784..064703e1587 100644
--- a/icu4c/source/i18n/unicode/timezone.h
+++ b/icu4c/source/i18n/unicode/timezone.h
@@ -284,6 +284,8 @@ public:
      * and may return a different TimeZone from the one returned by
      * TimeZone::createDefault().
      *
+     * <p>This function is not thread safe.</p>
+     *
      * @return  A new instance of TimeZone detected from the current host system
      *          configuration.
      * @stable ICU 55