--- ceph-12.2.13/src/common/bit_str.h.orig	2020-01-30 21:52:36.000000000 +0100
+++ ceph-12.2.13/src/common/bit_str.h	2020-05-31 19:08:32.698492649 +0200
@@ -14,7 +14,9 @@
 #ifndef CEPH_COMMON_BIT_STR_H
 #define CEPH_COMMON_BIT_STR_H
 
+#include <cstdint>
 #include <functional>
+#include <ostream>
 
 namespace ceph {
   class Formatter;