--- mozart2-2.0.1.orig/vm/vm/main/core-forward-decl.hh	2018-09-05 03:16:51.000000000 +0200
+++ mozart2-2.0.1/vm/vm/main/core-forward-decl.hh	2021-08-03 10:31:50.281476430 +0200
@@ -36,6 +36,7 @@
 #include <cstdint>
 #include <ostream>
 #include <functional>
+#include <limits>
 #include <memory>
 #include <cassert>