Explicitely include <optional>

It should have been included since we use std::optional, and not
including it breaks the build on OpenBSD.
This commit is contained in:
Frédéric Mangano-Tarumi 2020-10-10 15:08:53 +02:00
parent a22c81e727
commit be9740fe05

View File

@ -31,6 +31,7 @@
#include <functional>
#include <list>
#include <memory>
#include <optional>
#include <string>
#include <vector>