$OpenBSD: patch-mvol_c,v 1.1 2011/12/30 23:14:34 sthen Exp $

Fix: Multi-volume format cannot handle on 64bit environment.

--- mvol.c.orig	Sun Jan  7 10:47:17 1996
+++ mvol.c	Fri Dec 30 23:09:44 2011
@@ -248,7 +248,7 @@ unsigned char    *p;
     }
     close(id);
     close(od);
-    crc32 = ~crc32;
+    crc32 = ~crc32 & 0xffffffffU;
     crc16 = ~crc16;
     if (crc32 == ncrc32 && crc16 == ncrc16) {
 	/* checksum OK */
