PyPy build fix

--HG--
extra : rebase_source : 43fb0224114142a1f34e2c9ee36a3f8513adb22e

Cython/Utility/Exceptions.c

@@ -236,14 +236,14 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     tstate->exc_type = local_type;
     tstate->exc_value = local_value;
     tstate->exc_traceback = local_tb;
-#else
-    PyErr_SetExcInfo(local_type, local_value, local_tb);
-#endif
     /* Make sure tstate is in a consistent state when we XDECREF
-       these objects (XDECREF may run arbitrary code). */
+       these objects (DECREF may run arbitrary code). */
     Py_XDECREF(tmp_type);
     Py_XDECREF(tmp_value);
     Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
     return 0;
 bad:
     *type = 0;