--- sha1.h.orig	2008-01-03 18:59:46.000000000 -0800
+++ sha1.h	2008-01-03 19:00:23.000000000 -0800
@@ -37,6 +37,12 @@
 # endif
 #endif
 
+/* see if we're on big endian */
+#include <sys/types.h>
+#if BYTE_ORDER == BIG_ENDIAN
+# define WORDS_BIGENDIAN 1
+#endif	/* BYTE_ORDER == BIG_ENDIAN */
+
 #define SHA1_HASH_SIZE 20
 #define SHA1_DIGEST_STRING_LENGTH 40