From 69ef6cf8067a2f10eb51e1570b1f9784557e734a Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Thu, 18 Jul 2019 12:07:50 +0200
Subject: [PATCH] Fix for compilation on clang: Forward declarations of
 templates.

---
 src/libslic3r/Model.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/libslic3r/Model.hpp b/src/libslic3r/Model.hpp
index 37741a1f10..c026863ecb 100644
--- a/src/libslic3r/Model.hpp
+++ b/src/libslic3r/Model.hpp
@@ -17,6 +17,13 @@
 #include <utility>
 #include <vector>
 
+namespace cereal {
+	class BinaryInputArchive;
+	class BinaryOutputArchive;
+	template <class T> void load_optional(BinaryInputArchive &ar, std::shared_ptr<const T> &ptr);
+	template <class T> void save_optional(BinaryOutputArchive &ar, const std::shared_ptr<const T> &ptr);
+}
+
 namespace Slic3r {
 
 class Model;