$ sudo apt-get update
$ sudo apt-get install geoclue-gsmloc 

geoclue-gsmloc is installed in your system.

Make ensure the geoclue-gsmloc package were installed using the commands given below,

$ sudo dpkg-query -l | grep geoclue-gsmloc *

You will get with geoclue-gsmloc package name, version, architecture and description in a table

geoclue-gsmloc package basic information: