diff -urN RC13-git7-ncr5380/drivers/net/hamachi.c RC13-git7-hamachi/drivers/net/hamachi.c
--- RC13-git7-ncr5380/drivers/net/hamachi.c	2005-08-28 23:09:44.000000000 -0400
+++ RC13-git7-hamachi/drivers/net/hamachi.c	2005-09-07 13:55:45.000000000 -0400
@@ -204,6 +204,10 @@
 
 #define RUN_AT(x) (jiffies + (x))
 
+#ifndef ADDRLEN
+#define ADDRLEN 32
+#endif
+
 /* Condensed bus+endian portability operations. */
 #if ADDRLEN == 64
 #define cpu_to_leXX(addr)	cpu_to_le64(addr)