lxqt-sudo: fix build with Qt 5.11, explicitly include headers

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>

recipes-lxqt/lxqt-sudo/lxqt-sudo/0001-passworddialog.cpp-include-QIcon-explicitely.patch

@@ -0,0 +1,31 @@
+From b3031fa2b3e407c1db565424f5e2d49fda6c8f27 Mon Sep 17 00:00:00 2001
+From: Max Krummenacher <max.krummenacher@toradex.com>
+Date: Sun, 6 May 2018 09:14:10 +0000
+Subject: [PATCH] passworddialog.cpp: include QIcon explicitely
+
+5.11 Qt headers do not indirectly include QIcon resulting in compile
+time errors like:
+| passworddialog.cpp:44:33: error: incomplete type 'QIcon' used in nested name specifier
+
+Upstream-Status: Submitted [https://github.com/lxqt/lxqt-sudo/pull/34]
+
+Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
+---
+ passworddialog.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/passworddialog.cpp b/passworddialog.cpp
+index 7b6de2a..e7a691d 100644
+--- a/passworddialog.cpp
++++ b/passworddialog.cpp
+@@ -27,6 +27,7 @@
+ 
+ #include "passworddialog.h"
+ #include "ui_passworddialog.h"
++#include <QIcon>
+ 
+ PasswordDialog::PasswordDialog(QStringList argv
+         , QWidget * parent/* = 0*/
+-- 
+2.13.6
+

recipes-lxqt/lxqt-sudo/lxqt-sudo_git.bb

@@ -6,5 +6,6 @@ inherit lxqt pkgconfig
 
 DEPENDS += "liblxqt"
 
+SRC_URI += "file://0001-passworddialog.cpp-include-QIcon-explicitely.patch"
 SRCREV = "1d8947c6124f40bf2a753c18de3f4fe124c5396a"
 PV = "0.12.0"