libsx0 software package provides Simple X library, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libsx0
libsx0 is installed in your system.
Make ensure the libsx0 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libsx0 *
You will get with libsx0 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libsx0 |
| Version | 2.05-5 |
| Description | Simple X library |
| Sub Section | libs |