ext/pycall/libpython.c in pycall-1.1.0.rc1 vs ext/pycall/libpython.c in pycall-1.2.0.beta1

@@ -92,9 +92,10 @@
   INIT_API_TABLE_ENTRY(Py_DecRef, required);
 
   INIT_API_TABLE_ENTRY(_PyObject_New, required);
   INIT_API_TABLE_ENTRY(PyCallable_Check, required);
   INIT_API_TABLE_ENTRY(PyObject_IsInstance, required);
+  INIT_API_TABLE_ENTRY(PyObject_IsSubclass, required);
   INIT_API_TABLE_ENTRY2(PyObject_Hash._hash_t, PyObject_Hash, required);
   INIT_API_TABLE_ENTRY(PyObject_RichCompare, required);
   INIT_API_TABLE_ENTRY(PyObject_Call, required);
   INIT_API_TABLE_ENTRY(PyObject_CallMethod, required);
   INIT_API_TABLE_ENTRY(PyObject_Dir, required);