diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index e8c36cf1539911..e61acd295ac4e4 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -70,11 +70,13 @@ static inline PyTypeObject * subclass_from_ref(PyObject *ref);
 
 /* helpers for for static builtin types */
 
+#ifndef NDEBUG
 static inline int
 static_builtin_index_is_set(PyTypeObject *self)
 {
     return self->tp_subclasses != NULL;
 }
+#endif
 
 static inline size_t
 static_builtin_index_get(PyTypeObject *self)
diff --git a/Python/ceval_gil.h b/Python/ceval_gil.h
index 1b2dc7f8e1dc31..4c71edd682bf62 100644
--- a/Python/ceval_gil.h
+++ b/Python/ceval_gil.h
@@ -133,12 +133,14 @@ static void destroy_gil(struct _gil_runtime_state *gil)
     _Py_ANNOTATE_RWLOCK_DESTROY(&gil->locked);
 }
 
+#ifdef HAVE_FORK
 static void recreate_gil(struct _gil_runtime_state *gil)
 {
     _Py_ANNOTATE_RWLOCK_DESTROY(&gil->locked);
     /* XXX should we destroy the old OS resources here? */
     create_gil(gil);
 }
+#endif
 
 static void
 drop_gil(struct _ceval_runtime_state *ceval, struct _ceval_state *ceval2,