From 3d03f4e989e0ae53569a1a2e390d71c41d91f329 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= <tor.arne.vestbo@qt.io>
Date: Tue, 28 Jul 2020 15:31:44 +0200
Subject: Register QPlatformBackingStoreOpenGLSupport when needed

Static builds can not rely on a constructor function in the QtOpenGL
library, as that will be linked out unless something in the application
pulls it in.

Instead we export a helper function that clients that depend on
OpenGL support in QPlatformBackingStore can use to bring it it.

Change-Id: Ic54058bf413a476287884c78df5624b862f97695
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
---
 src/openglwidgets/qopenglwidget.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/openglwidgets/qopenglwidget.cpp')

diff --git a/src/openglwidgets/qopenglwidget.cpp b/src/openglwidgets/qopenglwidget.cpp
index b7abc89c0be..cb60de1fd1d 100644
--- a/src/openglwidgets/qopenglwidget.cpp
+++ b/src/openglwidgets/qopenglwidget.cpp
@@ -55,6 +55,7 @@
 #include <QtGui/private/qopenglcontext_p.h>
 #include <QtOpenGL/private/qopenglframebufferobject_p.h>
 #include <QtOpenGL/private/qopenglpaintdevice_p.h>
+#include <QtOpenGL/qpa/qplatformbackingstoreopenglsupport.h>
 
 #include <QtWidgets/private/qwidget_p.h>
 
@@ -1411,6 +1412,8 @@ bool QOpenGLWidget::event(QEvent *e)
     return QWidget::event(e);
 }
 
+Q_CONSTRUCTOR_FUNCTION(qt_registerDefaultPlatformBackingStoreOpenGLSupport);
+
 QT_END_NAMESPACE
 
 #include "moc_qopenglwidget.cpp"
-- 
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