$ sudo apt-get update
$ sudo apt-get install libgettextpo0 

libgettextpo0 is installed in your system.

Make ensure the libgettextpo0 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libgettextpo0 *

You will get with libgettextpo0 package name, version, architecture and description in a table

libgettextpo0 package basic information: