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