From 7c5cf8b2bdd49f9f19a6d2db5f5f12372ca6cfca Mon Sep 17 00:00:00 2001
From: Olivier Goffart <ogoffart@woboq.com>
Date: Sat, 17 Sep 2016 11:54:29 +0200
Subject: Fix bootstrap applications crashing when QT_MESSAGE_PATTERN contains
 %{backtrace}

tokens[i] was left uninitialized. This could cause a crash when moc produces a
qWarning.

Task-number: QTBUG-56045
Change-Id: I6fba933005edd29756f0d6b1cfe53243254ac7b2
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
---
 src/corelib/global/qlogging.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index 6cd2d7914b..eb26b6198d 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -1133,6 +1133,7 @@ void QMessagePattern::setPattern(const QString &pattern)
                 backtraceArgs.append(backtraceParams);
 #else
                 error += QStringLiteral("QT_MESSAGE_PATTERN: %{backtrace} is not supported by this Qt build\n");
+                tokens[i] = "";
 #endif
             }
 
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