https://github.com/wesnoth/wesnoth/commit/5fa07ea15c1736f74d89786d5ae449ed0f91c8a8

From 5fa07ea15c1736f74d89786d5ae449ed0f91c8a8 Mon Sep 17 00:00:00 2001
From: Martin Liska <mliska@suse.cz>
Date: Mon, 23 May 2022 13:44:39 +0200
Subject: [PATCH] Fix building with GCC 13.

Fixes the following issue:
base64.hpp:23:49: error: 'uint8_t' was not declared in this scope

and:
deprecation.hpp:20:22: error: found ':' in nested-name-specifier, expected '::'
--- a/src/deprecation.hpp
+++ b/src/deprecation.hpp
@@ -14,6 +14,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string>
 
 /** See https://wiki.wesnoth.org/CompatibilityStandards for more info. */
--- a/src/serialization/base64.hpp
+++ b/src/serialization/base64.hpp
@@ -15,6 +15,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <string_view>
 #include <vector>