From fac706f6786fba5f1173151f2d36469889979f45 Mon Sep 17 00:00:00 2001
From: "Pierre R. Mai" <pmai@pmsf.de>
Date: Sun, 14 Oct 2012 22:51:51 +0200
Subject: [PATCH] Fix portable implementation of i (via sbcl and cl-md5).

---
 md5.lisp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/md5.lisp b/md5.lisp
index 4de5801..c7d36fc 100644
--- a/md5.lisp
+++ b/md5.lisp
@@ -109,7 +109,7 @@ where a is the intended low-order byte and d the high-order byte."
   #+cmu
   (kernel:32bit-logical-xor y (kernel:32bit-logical-orc2 x z))
   #-cmu
-  (logxor y (logorc2 x z)))
+  (ldb (byte 32 0) (logxor y (logorc2 x z))))
 
 (declaim (inline mod32+)
 	 (ftype (function (ub32 ub32) ub32) mod32+))