From c68369d48c15be044ef79c2284df363406282bb4 Mon Sep 17 00:00:00 2001
From: Willem Jan Withagen <wjw@digiware.nl>
Date: Sat, 5 Jan 2019 00:53:22 +0100
Subject: [PATCH] msg: fix includes for ostringstream

Clang complains...

```
/home/jenkins/workspace/ceph-master/src/msg/msg_types.h:420:19: error: implicit instantiation of undefined template 'std::__1::basic_ostringstream<char, std::__1::char_traits<char>, std::__1::allocator<char> >'
    ostringstream ss;
                  ^
/usr/include/c++/v1/iosfwd:123:32: note: template is declared here
    class _LIBCPP_TEMPLATE_VIS basic_ostringstream;
                               ^
1 error generated.
```

Signed-off-by: Willem Jan Withagen <wjw@digiware.nl>
---
 src/msg/msg_types.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/msg/msg_types.h b/src/msg/msg_types.h
index 67d41d58e2b2..1049ad540a0c 100644
--- a/src/msg/msg_types.h
+++ b/src/msg/msg_types.h
@@ -15,6 +15,8 @@
 #ifndef CEPH_MSG_TYPES_H
 #define CEPH_MSG_TYPES_H
 
+#include <sstream>
+
 #include <netinet/in.h>
 
 #include "include/ceph_features.h"
-- 
2.47.3