Comment 4 for bug 129827

There is a problem in the indentation with your patch :
  File "/usr/bin/avant-applets", line 317
    if os.path.islink(d) and os.readlink(d) in dirs:
                                                   ^
IndentationError: unindent does not match any outer indentation level

Btw, in debian and ubuntu system, /usr/lib64 is just a link to /usr/lib (not /usr/lib to /usr/lib64). So /usr/lib always exist.