https://bugs.gentoo.org/930977
https://github.com/jstkdng/ueberzugpp/issues/179
--- a/src/canvas/wayland/config/dummy.hpp
+++ b/src/canvas/wayland/config/dummy.hpp
@@ -20,4 +20,6 @@
 #include "../config.hpp"
 
+#include <string>
+
 class DummyWaylandConfig : public WaylandConfig
 {