diff -ur globus_io-6.3.orig/globus_io_xio_compat.c globus_io-6.3/globus_io_xio_compat.c
--- globus_io-6.3.orig/globus_io_xio_compat.c	2008-03-12 20:01:10.000000000 +0100
+++ globus_io-6.3/globus_io_xio_compat.c	2009-06-04 01:09:16.000000000 +0200
@@ -978,7 +978,7 @@
     bounce_info = (globus_l_io_bounce_t *) user_arg;
     
     if(globus_l_io_should_bounce(bounce_info) ||
-       handle != NULL && bounce_info->handle->attr->authz_data.callback)
+       (handle != NULL && bounce_info->handle->attr->authz_data.callback))
     {
         bounce_info->error = result == GLOBUS_SUCCESS 
             ? GLOBUS_NULL : globus_error_get(result);