From 137dd7789b870be7c5acc2e1dcdbb1f44442b8b1 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 28 May 2018 20:15:04 -0700
Subject: gtimezone: port to tzcode 2014c

Problem reported by Marien Zwart in:
https://gitlab.gnome.org/GNOME/glib/issues/878
Derived from a fix by John Ralls proposed in that bug report.
---
 glib/gtimezone.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/glib/gtimezone.c b/glib/gtimezone.c
index 72a4916ad..b3220dc35 100644
--- a/glib/gtimezone.c
+++ b/glib/gtimezone.c
@@ -1677,7 +1677,10 @@ interval_end (GTimeZone *tz,
               guint      interval)
 {
   if (tz->transitions && interval < tz->transitions->len)
-    return (TRANSITION(interval)).time - 1;
+    {
+      gint64 lim = (TRANSITION(interval)).time;
+      return lim - (lim != G_MININT64);
+    }
   return G_MAXINT64;
 }
 
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