Added missing include (GCC 11.1)

2021-05-01 22:33:59 +02:00 · 2021-05-01 22:33:59 +02:00 · 62592cab48
commit 62592cab48
parent c414f932d4
1 changed files with 1 additions and 0 deletions
--- a/src/libslic3r/Optimize/Optimizer.hpp
+++ b/src/libslic3r/Optimize/Optimizer.hpp
@ -8,6 +8,7 @@
 #include <functional>
 #include <limits>
 #include <cassert>
+#include <optional>

 namespace Slic3r { namespace opt {