minor: add <ostream> header to bsoncxx/oid.cpp

Tess Avitabile · Tess Avitabile · commit 35a9b04ebe11 · 2016-01-07T11:07:21.000-05:00
diff --git a/src/bsoncxx/oid.cpp b/src/bsoncxx/oid.cpp
@@ -15,6 +15,7 @@
 #include <bsoncxx/oid.hpp>
 
 #include <cstring>
+#include <ostream>
 
 #include <bson.h>
 
