$ sudo apt-get update
$ sudo apt-get install libgdcm-cil 

libgdcm-cil is installed in your system.

Make ensure the libgdcm-cil package were installed using the commands given below,

$ sudo dpkg-query -l | grep libgdcm-cil *

You will get with libgdcm-cil package name, version, architecture and description in a table

libgdcm-cil package basic information: