From 4606d8266a87e92c75701adfb4ece322534555d6 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Tue, 15 Nov 2022 12:42:22 +0100
Subject: [PATCH] Added missing declaration

---
 src/libslic3r/Measure.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libslic3r/Measure.hpp b/src/libslic3r/Measure.hpp
index b2e2008d15..9cc380dd2b 100644
--- a/src/libslic3r/Measure.hpp
+++ b/src/libslic3r/Measure.hpp
@@ -12,6 +12,11 @@ struct indexed_triangle_set;
 
 
 namespace Slic3r {
+
+#if ENABLE_GIZMO_MEASURE_WORLD_COORDINATES
+class TriangleMesh;
+#endif // ENABLE_GIZMO_MEASURE_WORLD_COORDINATES
+
 namespace Measure {