From 2695985da04675a18f21d2ba4e09bb2c232b1eee Mon Sep 17 00:00:00 2001
From: Aleksei Bavshin <alebastr89@gmail.com>
Date: Thu, 26 Nov 2020 15:38:41 -0800
Subject: [PATCH] fix: compilation error with gcc 11
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../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
---
 src/modules/network.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/modules/network.cpp b/src/modules/network.cpp
index 74ae9130..7d9da8b5 100644
--- a/src/modules/network.cpp
+++ b/src/modules/network.cpp
@@ -3,6 +3,7 @@
 #include <sys/eventfd.h>
 #include <fstream>
 #include <cassert>
+#include <optional>
 #include "util/format.hpp"
 #ifdef WANT_RFKILL
 #include "util/rfkill.hpp"