From a05c4402632756b8401f1fe909f043349b570f02 Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Tue, 17 Apr 2018 10:55:18 +0200
Subject: [PATCH] Fixed potential crashes due to the Perl worker thread
 releasing memory allocated by the GUI thread.

---
 lib/Slic3r.pm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/Slic3r.pm b/lib/Slic3r.pm
index e55e24a7a..ab06a6455 100644
--- a/lib/Slic3r.pm
+++ b/lib/Slic3r.pm
@@ -161,7 +161,12 @@ sub thread_cleanup {
     *Slic3r::Print::SupportMaterial2::DESTROY = sub {};
     *Slic3r::TriangleMesh::DESTROY          = sub {};
     *Slic3r::GUI::AppConfig::DESTROY        = sub {};
+    *Slic3r::GUI::GCodePreviewData::DESTROY = sub {};
+    *Slic3r::GUI::OctoPrint::DESTROY        = sub {};
     *Slic3r::GUI::PresetBundle::DESTROY     = sub {};
+    *Slic3r::GUI::PresetHints::DESTROY      = sub {};
+    *Slic3r::GUI::PresetUpdater::DESTROY    = sub {};
+    *Slic3r::GUI::TabIface::DESTROY         = sub {};
     return undef;  # this prevents a "Scalars leaked" warning
 }