In GNU Emacs 26.1.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2018-09-05 built on riefenstahl-thinkpad
Repository revision: 9618e16efa5607664b794795fb80bdf5862fbe4b
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description:	Ubuntu 16.04.5 LTS