libgif4 software package provides library for GIF images (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 libgif4
libgif4 is installed in your system.
Make ensure the libgif4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgif4 *
You will get with libgif4 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libgif4 |
| Version | 4.1.6-11 |
| Description | library for GIF images (library) |
| Sub Section | libs |