Merge pull request #272 from jagerman/fix-gcc6-placement-new-warning

Fix gcc6 placement new warning

include/pybind11/pybind11.h

@@ -82,7 +82,14 @@ protected:
 
         /* Store the capture object directly in the function record if there is enough space */
         if (sizeof(capture) <= sizeof(rec->data)) {
+#if defined(__GNUG__) && !defined(__clang__) && __GNUC__ >= 6
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wplacement-new"
+#endif
             new ((capture *) &rec->data) capture { std::forward<Func>(f) };
+#if defined(__GNUG__) && !defined(__clang__) && __GNUC__ >= 6
+#  pragma GCC diagnostic pop
+#endif
             if (!std::is_trivially_destructible<Func>::value)
                 rec->free_data = [](detail::function_record *r) { ((capture *) &r->data)->~capture(); };
         } else {