Added missing include (GCC 11.1)

This commit is contained in:
Lukáš Hejl 2021-05-01 22:33:59 +02:00
parent c414f932d4
commit 62592cab48

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@ -8,6 +8,7 @@
#include <functional> #include <functional>
#include <limits> #include <limits>
#include <cassert> #include <cassert>
#include <optional>
namespace Slic3r { namespace opt { namespace Slic3r { namespace opt {