gnulib software package provides GNU Portability 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 gnulib
gnulib is installed in your system.
Make ensure the gnulib package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnulib *
You will get with gnulib package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | gnulib |
| Version | 20140202+stable-1 |
| Description | GNU Portability Library |
| Sub Section | devel |