From 58754264c6ae92764d5ff2559717624e86126ebc Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Tue, 25 Mar 2025 17:44:33 +0100
Subject: [PATCH] FIX: Fix missing union_ex/offset_ex declaration
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/run/build/BambuStudio/src/libslic3r/Interlocking/InterlockingGenerator.cpp: In member function ‘std::pair<std::vector<Slic3r::ExPolygon>, std::vector<Slic3r::ExPolygon> > Slic3r::InterlockingGenerator::growBorderAreasPerpendicular(const Slic3r::ExPolygons&, const Slic3r::ExPolygons&, const coord_t&) const’:
/run/build/BambuStudio/src/libslic3r/Interlocking/InterlockingGenerator.cpp:70:56: error: ‘offset_ex’ was not declared in this scope; did you mean ‘offsetof’?
   70 |     const ExPolygons total_shrunk = offset_ex(union_ex(offset_ex(a, min_line), offset_ex(b, min_line)), 2 * -min_line);
      |                                                        ^~~~~~~~~
      |                                                        offsetof
/run/build/BambuStudio/src/libslic3r/Interlocking/InterlockingGenerator.cpp:70:47: error: ‘union_ex’ was not declared in this scope; did you mean ‘union’?
   70 |     const ExPolygons total_shrunk = offset_ex(union_ex(offset_ex(a, min_line), offset_ex(b, min_line)), 2 * -min_line);
      |                                               ^~~~~~~~
      |                                               union
---
 src/libslic3r/Interlocking/InterlockingGenerator.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libslic3r/Interlocking/InterlockingGenerator.cpp b/src/libslic3r/Interlocking/InterlockingGenerator.cpp
index 5a9fc21d6..a52c92dc0 100644
--- a/src/libslic3r/Interlocking/InterlockingGenerator.cpp
+++ b/src/libslic3r/Interlocking/InterlockingGenerator.cpp
@@ -1,6 +1,7 @@
 // Copyright (c) 2023 UltiMaker
 // CuraEngine is released under the terms of the AGPLv3 or higher.
 
+#include "ClipperUtils.hpp"
 #include "InterlockingGenerator.hpp"
 #include "Layer.hpp"