--- include/btorder.h-	Wed Dec 17 09:05:59 1997
+++ include/btorder.h	Wed Dec 17 09:05:42 1997
@@ -26,6 +26,14 @@
 
 #include <sys/types.h>			/* try to load isa_defs.h on Solaris */
 
+#ifdef __OpenBSD__
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define _BIT_FIELDS_LTOH
+#elif BYTE_ORDER == BIG_ENDIAN
+#define _BIT_FIELDS_HTOL
+#endif
+#endif
+
 #if	defined(_BIT_FIELDS_LTOH)	/* Intel byteorder */
 #elif	defined(_BIT_FIELDS_HTOL)	/* Motorola byteorder */
 #else
