$OpenBSD$

Index: src/mongo/db/service_context_d.h
--- src/mongo/db/service_context_d.h.orig
+++ src/mongo/db/service_context_d.h
@@ -28,6 +28,7 @@
 
 #pragma once
 
+#include <map>
 #include <vector>
 
 #include "mongo/db/service_context.h"