https://bugs.gentoo.org/844235
--- a/src/mongo/util/processinfo_linux.cpp
+++ b/src/mongo/util/processinfo_linux.cpp
@@ -51,6 +51,7 @@
 #endif
 
 #include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
 #include <boost/none.hpp>
 #include <boost/optional.hpp>
 #include <fmt/format.h>
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_util.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_util.cpp
@@ -36,6 +36,7 @@
 #include <limits>
 
 #include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
 #include <boost/filesystem/path.hpp>
 
 #include "mongo/base/simple_string_data_comparator.h"
--- a/src/mongo/shell/shell_utils_extended.cpp
+++ b/src/mongo/shell/shell_utils_extended.cpp
@@ -37,6 +37,7 @@
 #endif
 
 #include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
 #include <fstream>
 
 #include "mongo/scripting/engine.h"
--- a/src/mongo/db/storage/storage_repair_observer.cpp
+++ b/src/mongo/db/storage/storage_repair_observer.cpp
@@ -41,6 +41,7 @@
 #include <sys/types.h>
 #endif
 
+#include <boost/filesystem/fstream.hpp>
 #include <boost/filesystem/path.hpp>
 
 #include "mongo/db/dbhelpers.h"