libffi6 software package provides Foreign Function Interface library runtime, 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 libffi6
libffi6 is installed in your system.
Make ensure the libffi6 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libffi6 *
You will get with libffi6 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libffi6 |
| Version | 3.1~rc1+r3.0.13-12 |
| Description | Foreign Function Interface library runtime |
| Sub Section | libs |