Nowadays (Ubuntu 16.04), the shipped version of adjtimex is 1.29-7, which has this bug fixed. Closing the bug.
** Changed in: adjtimex (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1350932 Title: Installation error message: egrep: character class syntax is [[:space:]], not [:space:] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/adjtimex/+bug/1350932/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs