root@Bill-Linux-Box:/# apt-cache policy libc6 libc6-devlibc6:
  Installed: 2.19-22
  Candidate: 2.19-22
  Version table:
 *** 2.19-22 0
        100 /var/lib/dpkg/status
     2.19-18+deb8u2 0
        500 http://ftp.us.debian.org/debian/ jessie/main amd64 Package
s
libc6-dev:
  Installed: (none)
  Candidate: 2.19-18+deb8u2
  Version table:
     2.19-18+deb8u2 0
        500 http://ftp.us.debian.org/debian/ jessie/main amd64 Package
s