libcext-dev software package provides Commonly used utility functions for C programs (development files), 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 libcext-dev
libcext-dev is installed in your system.
Make ensure the libcext-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcext-dev *
You will get with libcext-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libcext-dev |
| Version | 6.4.1-5 |
| Description | Commonly used utility functions for C programs (development files) |
| Sub Section | libdevel |