From d8ca03b362d9c554493f16deea2bebf0c65687b6 Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Mon, 9 May 2016 17:59:59 +0200
Subject: [PATCH] 3D viewer: set right OpenGL context before freeing memory.

---
 3d-viewer/3d_canvas.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/3d-viewer/3d_canvas.cpp b/3d-viewer/3d_canvas.cpp
index 1056724785..2176aa9c76 100644
--- a/3d-viewer/3d_canvas.cpp
+++ b/3d-viewer/3d_canvas.cpp
@@ -116,6 +116,13 @@ EDA_3D_CANVAS::EDA_3D_CANVAS( EDA_3D_FRAME* parent, int* attribList ) :
 
 EDA_3D_CANVAS::~EDA_3D_CANVAS()
 {
+#ifdef __LINUX__
+    if( IsShownOnScreen() )
+        SetCurrent( *m_glRC );
+#else
+    SetCurrent( *m_glRC );
+#endif
+
     ClearLists();
     m_init = false;
     delete m_glRC;