--- lib/libmd/sha1c.c	(revision 290536)
+++ lib/libmd/sha1c.c	(working copy)
@@ -218,7 +218,7 @@ 
 	 */
 #if 1
 #if BYTE_ORDER == BIG_ENDIAN || defined(SHA1_ASM)
-	if ((((unsigned int)data)%sizeof(u_int32_t)) == 0)
+	if ((((unsigned long)data)%sizeof(u_int32_t)) == 0)
 		{
 		sw=len/SHA_CBLOCK;
 		if (sw)