Fix segfault as we didn't imported numpy c module stuff.

theano/gof/cutils.py

@@ -202,9 +202,10 @@ fail:
         PyMODINIT_FUNC
         initcutils_ext(void)
         {
+          import_array();
           (void) Py_InitModule("cutils_ext", CutilsExtMethods);
         }
-    }
+    } //extern C
         """
 
     import cmodule