API change!  Yee-ha!
--- nss_db-2.2/db-compat.c	2005-02-22 11:20:08.982739304 -0500
+++ nss_db-2.2/db-compat.c	2005-02-22 11:20:15.872839511 -0500
@@ -39,7 +39,7 @@
   if (err)
     return err;
 
-  err = db->open (db, file, NULL, type, flags, mode);
+  err = db->open (db, NULL, file, NULL, type, flags, mode);
   if (err)
     {
       db->close (db, 0);