libxshmfence1 software package provides X shared memory fences - shared 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 libxshmfence1
libxshmfence1 is installed in your system.
Make ensure the libxshmfence1 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libxshmfence1 *
You will get with libxshmfence1 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libxshmfence1 |
| Version | 1.1-2 |
| Description | X shared memory fences - shared library |
| Sub Section | libs |