../src/modules/network.cpp:22:6: error: ‘optional’ in namespace ‘std’ does not name a template type
22 | std::optional<unsigned long long> read_netstat(std::string_view category, std::string_view key) {
| ^~~~~~~~
../src/modules/network.cpp:7:1: note: ‘std::optional’ is defined in header ‘<optional>’; did you forget to ‘#include <optional>’?
6 | #include "util/format.hpp"
+++ |+#include <optional>
7 | #ifdef WANT_RFKILL