diff -r 71a5ebd9a59c security/nss/lib/pk11wrap/pk11merge.c
--- a/security/nss/lib/pk11wrap/pk11merge.c	Thu Apr 16 00:01:24 2009 +0200
+++ b/security/nss/lib/pk11wrap/pk11merge.c	Sun Apr 19 14:24:38 2009 +0300
@@ -488,7 +488,7 @@
     /* set up the input test */
     input.data = (unsigned char *)testString;
     input.len = PK11_GetBlockSize(cryptoMechType, NULL);
-    if (input.len < 0) {
+    if ((int)input.len < 0) {
 	rv = SECFailure;
 	goto done;
     }