use <ios> instead of <iostream>

diff --git a/Cython/Utility/CppSupport.cpp b/Cython/Utility/CppSupport.cpp
index 8913253..ab2f2b5 100644 (file)
--- a/Cython/Utility/CppSupport.cpp
+++ b/Cython/Utility/CppSupport.cpp
@@ -4,7 +4,7 @@
 #include <new>
 #include <typeinfo>
 #include <stdexcept>
-#include <iostream>
+#include <ios>
 
 static void __Pyx_CppExn2PyErr() {
   // Catch a handful of different errors here and turn them into the