https://bugs.gentoo.org/894720
https://bugs.gentoo.org/895536
--- a/src/view/background/BackgroundConfig.h
+++ b/src/view/background/BackgroundConfig.h
@@ -11,6 +11,7 @@
 
 #pragma once
 
+#include <cstdint>
 #include <map>
 #include <string>