--- /dev/null
+#define AIX4
+
+#include "aix3-2-5.h"
+
+/* AIX 4 does not have HFT any more. */
+#undef AIXHFT
+
+#ifndef NOT_C_CODE
+#define _XFUNCS_H_ 1
+/* Forward declarations for xlc warning suppressions */
+struct ether_addr;
+struct sockaddr_dl;
+#endif