Add missing patch

qtwayland-do-not-recreate-hidden-egl-surfaces.patch

@@ -0,0 +1,38 @@
+From a343c589a966d0342fcc75e0d6ce24e1f5157540 Mon Sep 17 00:00:00 2001
+From: David Edmundson <davidedmundson@kde.org>
+Date: Wed, 3 Jan 2018 19:18:42 +0000
+Subject: [PATCH] Don't recreate hidden egl surfaces
+
+QWaylandEglWindow deletes surfaces when a window changes from hidden to
+visible, presumably as a result of us not having a valid wl_surface
+object. By extension it doesn't make sense to create a surface whilst a
+window is still hidden.
+
+This fixes a crash where a QQuickWindow hides and then is destroyed. In
+QQuickWindow destruction we have to create a valid context in order to
+delete any textures/assets owned by the scene graph; as the wl_surface
+has gone this causes an error in the EGL libs when we create an EGL
+surface.
+
+Task-number: QTBUG-65553
+Change-Id: I9b37a86326bf2cd7737c4e839c1aa8c74cf08116
+---
+ .../client/wayland-egl/qwaylandglcontext.cpp       |  2 +-
+ tests/auto/client/client/tst_client.cpp            | 35 ++++++++++++++++++++++
+ 2 files changed, 36 insertions(+), 1 deletion(-)
+
+diff --git a/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
+index 2a9e39e..f4dd6f4 100644
+--- a/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
++++ b/src/hardwareintegration/client/wayland-egl/qwaylandglcontext.cpp
+@@ -407,7 +407,7 @@ bool QWaylandGLContext::makeCurrent(QPlatformSurface *surface)
+         window->createDecoration();
+
+     if (eglSurface == EGL_NO_SURFACE) {
+-        window->updateSurface(true);
++        window->updateSurface(window->isExposed());
+         eglSurface = window->eglSurface();
+     }
+
+--
+2.7.4