Description of problem:
During the upgrade from samba to samba4 the link /usr/lib/cups/backend/smb to /usr/bin/smbspool was removed. 

As packages are conflicting I first had to uninstall samba and then install samba4 this might have something to do with the issue. 

Absence of the cups backend definition of smb was resulting in SMB network printers to be still configured and available, but not printing.

Version-Release number of selected component (if applicable):
from samba-client-3.6.4-82.fc17.1.x86_64
to   samba4-client-4.0.0-41alpha18.fc17.x86_64


How reproducible:
do not know

Steps to Reproduce:
1. rpm -e samba samba-common samba-client
2. yum install samba4-client

  
Actual results:
Link /usr/lib/cups/backend/smb removed


Expected results:
link should exist if there is cups package as of
ln -s /usr/bin/smbspool /usr/lib/cups/backend/smb

Additional info:
Update from samba to samba4 was forced by todays yum update dependencies in the testing Fedora 17 respository