* entails; unfortunately, currently the situation is worse, not
* better, than in the above paragraph. */
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(LISP_FEATURE_DARWIN)
int *
os_context_register_addr(os_context_t *context, int offset)
{