From 17fb59cdeb504a41dba8a8fe9f74388dd90e1f20 Mon Sep 17 00:00:00 2001
From: Michael Gregorius <michael.gregorius.git@arcor.de>
Date: Thu, 7 Dec 2017 18:55:40 +0100
Subject: [PATCH] Fix a crash that occurs when library "KF5WidgetsAddons"
 cannot be loaded

Add a check to see if the library "KF5WidgetsAddons" could be loaded and
return if that's not the case.

Also move a using declaration near the place where it is used first.
---
 src/gui/MainWindow.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/gui/MainWindow.cpp b/src/gui/MainWindow.cpp
index 32d16546b..d8ea33f33 100644
--- a/src/gui/MainWindow.cpp
+++ b/src/gui/MainWindow.cpp
@@ -69,8 +69,13 @@
 //Work around an issue on KDE5 as per https://bugs.kde.org/show_bug.cgi?id=337491#c21
 void disableAutoKeyAccelerators(QWidget* mainWindow)
 {
-	using DisablerFunc = void(*)(QWidget*);
 	QLibrary kf5WidgetsAddon("KF5WidgetsAddons", 5);
+    if (!kf5WidgetsAddon.isLoaded())
+    {
+        return;
+    }
+
+    using DisablerFunc = void(*)(QWidget*);
 	DisablerFunc setNoAccelerators = 
 			reinterpret_cast<DisablerFunc>(kf5WidgetsAddon.resolve("_ZN19KAcceleratorManager10setNoAccelEP7QWidget"));
 	if(setNoAccelerators)