JOB_SILENT
if ((job->flags & JOB_SILENT) && sequential)
if ((job->flags & (JOB_SILENT | JOB_IS_EXPENSIVE))
== JOB_SILENT)
job->flags |= JOB_SILENT;
job->flags &= ~JOB_SILENT;
if ((j->flags & (JOB_SILENT | JOB_IS_EXPENSIVE)) == JOB_SILENT