-#undef LANG_HOOKS_FUNCTION_ENTER_NESTED
-#define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
-#undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
-#define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
-#undef LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P
-#define LANG_HOOKS_FUNCTION_MISSING_NORETURN_OK_P c_missing_noreturn_ok_p
-#undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
-#define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
+#undef LANG_HOOKS_MISSING_NORETURN_OK_P
+#define LANG_HOOKS_MISSING_NORETURN_OK_P c_missing_noreturn_ok_p