https://bugs.gentoo.org/899574
--- a/src/engine/display/font_description.hpp
+++ b/src/engine/display/font_description.hpp
@@ -19,2 +19,3 @@
 
+#include <cstdint>
 #include <vector>
--- a/src/util/pathname.hpp
+++ b/src/util/pathname.hpp
@@ -19,2 +19,3 @@
 
+#include <cstdint>
 #include <string>