#include <net/if_arp.h>
#endif
#ifdef SIOCGNIT
-#ifdef HAVE_net_nit_h
+#ifdef HAVE_net_nit_h
#include <net/nit.h>
-#else
+#else /* No net/nit.h. */
#undef SIOCGNIT
#undef SIOCSNIT
-#endif
-#endif
+#endif /* net/nit.h. */
+#endif /* SIOCGNIT. */
+#endif /* SIOCGIFCONF. */
/* These exist on Sequents. */
#ifdef SMIOSTATS
#undef DKIOCEXCL
#undef DKIOCGET
#undef DKIOCHDR
+/* Introduced by OSF/1 2.0. */
+#undef FIOPIPESTAT
+#undef SIOCSRREQR
+#undef SIOCSRREQW
+#undef SRVC_REQUEST
#endif
#define DEFINE(name, value) \