Binary package “libxss-dev” in ubuntu bionic

X11 Screen Saver extension library (development headers)

 libXss provides an X Window System client interface to the MIT-SCREEN-SAVER
 extension to the X protocol.
 The Screen Saver extension allows clients behaving as screen savers to
 register themselves with the X server, to better integrate themselves with
 the running session.
 This package contains the development headers for the library found in
 libxss1. Non-developers likely have little use for this package.
 More information about X.Org can be found at:
 This module can be found at