fix header

flagarde · flagarde · commit ddac7c3c6a1e · 2024-11-02T09:50:03.000+08:00
diff --git a/include/cpp-terminfo/Get.hpp b/include/cpp-terminfo/Get.hpp
@@ -11,6 +11,8 @@
 
 #include "cpp-terminfo/Terminfo.hpp"
 
+#include <functional>
+
 #ifdef _WIN32
   #ifdef BUILDING_DLL
     #define DLL_EXPORT __declspec(dllexport)
