diff -pur third_party/ijar/mapped_file_unix.cc third_party/ijar/mapped_file_unix.cc
--- third_party/ijar/mapped_file_unix.cc	2021-10-05 15:24:37.243946507 +0200
+++ third_party/ijar/mapped_file_unix.cc	2021-10-05 15:24:28.707823401 +0200
@@ -19,6 +19,7 @@
 #include <sys/mman.h>
 
 #include <algorithm>
+#include <limits>
 
 #include "third_party/ijar/mapped_file.h"