From 3547728ded330d3a0ecd7235a54232e1839e0e72 Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Wed, 16 Oct 2024 13:18:18 +0200
Subject: [PATCH] slic3r: Fix missing union_ex/diff_ex declaration
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src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp: In member function ‘void Slic3r::GUI::GLGizmoBrimEars::first_layer_slicer()’:
src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp:870:27: error: ‘union_ex’ was not declared in this scope; did you mean ‘union’?
  870 |                 part_ex = union_ex(part_ex, sliced_layer);
      |                           ^~~~~~~~
      |                           union
src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp:876:21: error: ‘diff_ex’ was not declared in this scope
  876 |     m_first_layer = diff_ex(part_ex, negative_ex);
      |                     ^~~~~~~
---
 src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
index dac6a4ec7..51feecff2 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoBrimEars.cpp
@@ -5,6 +5,7 @@
 #include "slic3r/GUI/Gizmos/GLGizmosCommon.hpp"
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/Plater.hpp"
+#include "libslic3r/ClipperUtils.hpp"
 #include "libslic3r/ExPolygon.hpp"
 
 namespace Slic3r { namespace GUI {