Add missing functional include for std::less_equal
diff --git a/snappy.cc b/snappy.cc index 56b8c82..877b65a 100644 --- a/snappy.cc +++ b/snappy.cc
@@ -74,6 +74,7 @@ #include <cstdint> #include <cstdio> #include <cstring> +#include <functional> #include <memory> #include <string> #include <utility>