From d18c7787e66b85c00bada7470bd7024055f637bf Mon Sep 17 00:00:00 2001
From: Jason Newton <nevion@gmail.com>
Date: Sun, 16 Aug 2015 05:40:49 -0700
Subject: [PATCH] fix a static initialization fiasco with ios_base

see http://stackoverflow.com/questions/12318693/c-segmentation-fault-
when-using-cout-in-static-variable-initialization for a reference of
what was happening when iostreams were used within boost.python
registry's global static ctors.
---
 include/boost/python/converter/registered.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/boost/python/converter/registered.hpp b/include/boost/python/converter/registered.hpp
index 68bb3c4a..ad9a00b3 100644
--- a/include/boost/python/converter/registered.hpp
+++ b/include/boost/python/converter/registered.hpp
@@ -14,6 +14,11 @@
 # include <boost/python/type_id.hpp>
 # include <boost/type.hpp>
 
+#if defined(BOOST_PYTHON_TRACE_REGISTRY) \
+ || defined(BOOST_PYTHON_CONVERTER_REGISTRY_APPLE_MACH_WORKAROUND)
+# include <iostream>
+#endif
+
 namespace boost {
 
 // You'll see shared_ptr mentioned in this header because we need to