Add a basic test for recarrays and complex dtypes
diff --git a/example/example.cpp b/example/example.cpp
index b831e3e..819f69f 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -29,6 +29,7 @@
 void init_ex_stl_binder_vector(py::module &);
 void init_ex_eval(py::module &);
 void init_ex_custom_exceptions(py::module &);
+void init_ex20(py::module &);
 void init_issues(py::module &);
 
 #if defined(PYBIND11_TEST_EIGEN)
@@ -72,6 +73,7 @@
     init_ex_stl_binder_vector(m);
     init_ex_eval(m);
     init_ex_custom_exceptions(m);
+    init_ex20(m);
     init_issues(m);
 
     #if defined(PYBIND11_TEST_EIGEN)