$apt-cache policy libncurses5
libncurses5:
  Installed: 5.5-5
  Candidate: 5.5-5
  Version table:
 *** 5.5-5 0
        500 http://gulus.usherbrooke.ca etch/main Packages
        100 /var/lib/dpkg/status

$apt-cache policy libc6
libc6:
  Installed: 2.3.6.ds1-13etch2
  Candidate: 2.3.6.ds1-13etch2
  Version table:
 *** 2.3.6.ds1-13etch2 0
        500 http://gulus.usherbrooke.ca etch/main Packages
        100 /var/lib/dpkg/status