$ apt-cache policy libgcc1 gcc-4.9-base libc6
libgcc1:
Installed: 1:5.1~rc1-0ubuntu1
Candidate: 1:5.1~rc1-0ubuntu1
Version table:
*** 1:5.1~rc1-0ubuntu1 0
100 /var/lib/dpkg/status
1:4.9.3-0ubuntu4 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
1:4.9-20140406-0ubuntu1 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
500 http://cz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
gcc-4.9-base:
Installed: 4.9.2-10ubuntu13
Candidate: 4.9.3-0ubuntu4
Version table:
4.9.3-0ubuntu4 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
*** 4.9.2-10ubuntu13 0
100 /var/lib/dpkg/status
4.9-20140406-0ubuntu1 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
500 http://cz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
libc6:
Installed: 2.19-0ubuntu6.6
Candidate: 2.19-0ubuntu6.6
Version table:
*** 2.19-0ubuntu6.6 0
500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
500 http://archive.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
100 /var/lib/dpkg/status
2.19-0ubuntu6 0
500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
500 http://cz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages