588867 - entryusn plugin fails on solaris
    
    https://bugzilla.redhat.com/show_bug.cgi?id=588867
    
    Fix description: _sparcv9_AtomicAdd, _sparcv9_AtomicSub, and
    _sparcv9_AtomicSet were not correctly declared.  It brought
    in the implicit function declaration, where the return value
    were casted to 32-bit integer and the comparison against the
    64-bit unsigned integer failed.  The comparison was in the
    endless loop and it caused the server hang.