diff -ur libnids-1.18.old/src/checksum.c libnids-1.18.new/src/checksum.c
--- libnids-1.18.old/src/checksum.c	2003-09-20 16:40:44.000000000 -0400
+++ libnids-1.18.new/src/checksum.c	2004-07-02 15:21:55.721441112 -0400
@@ -87,7 +87,7 @@
 "7: 								\n"
        : "=a"(sum)
        : "0"(sum), "c"(len), "S"(buff)
-       : "bx", "dx");
+       : "dx");
 
   return (sum);
 }