From a35c6a49c938fefbf25332cc5a2dc760f6d0c4ed Mon Sep 17 00:00:00 2001
From: Dmitry Shachnev <mitya57@gmail.com>
Date: Tue, 10 Apr 2018 14:01:47 +0300
Subject: glx: Fix loading OpenGL library when libGL.so symlink is missing

Task-number: QTBUG-67537
Change-Id: Ib59bc27582f44b0c6b04efa57c44d877e1685bbb
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
---
 src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
index d37eb572a6..baf3dbd42a 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
@@ -639,6 +639,8 @@ QFunctionPointer QGLXContext::getProcAddress(const char *procName)
                 extern const QString qt_gl_library_name();
 //                QLibrary lib(qt_gl_library_name());
                 QLibrary lib(QLatin1String("GL"));
+                if (!lib.load())
+                    lib.setFileNameAndVersion(QLatin1String("GL"), 1);
                 glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
 #endif
             }
-- 
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