$ sudo apt-get update
$ sudo apt-get install libgv-tcl 

libgv-tcl is installed in your system.

Make ensure the libgv-tcl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libgv-tcl *

You will get with libgv-tcl package name, version, architecture and description in a table

libgv-tcl package basic information: