Interestingly it was configured and build with "--with-sntp=no" all the time back as far as history goes.
Since 4.2.8 ntp brings their own manpage, so the sntp manpage patch got dropped. As I identified Debian being affected as well I searched there and found the reason it was disabled to begin with. There is also a bug discussing to re-enable it ... linking here. ** Bug watch added: Debian Bug tracker #793837 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793837 ** Also affects: ntp via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793837 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ntp in Ubuntu. https://bugs.launchpad.net/bugs/1604010 Title: sntp missing Status in NTP: Unknown Status in ntp package in Ubuntu: Triaged Bug description: In Ubuntu 16.04, the binary file /usr/bin/sntp is missing from the package ntp. The associated man page /usr/share/man/man1/sntp.1.gz is still included. How to reproduce: $ sudo apt-get install ntp $ dpkg-query -L ntp | grep sntp /usr/share/man/man1/sntp.1.gz Expected result: /usr/bin/sntp was included in Ubuntu 14.04: $ dpkg-query -L ntp | grep sntp /usr/bin/sntp /usr/share/man/man1/sntp.1.gz The sntp program remains a very useful tool for interactively testing on the command line the offset of the local clock to a remote NTP server (like "ntpdate -qu [ntp-server]" previously). It should be included in the same package as its man page. To manage notifications about this bug go to: https://bugs.launchpad.net/ntp/+bug/1604010/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp