libctl3 software package provides library for flexible control 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 libctl3
libctl3 is installed in your system.
Make ensure the libctl3 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libctl3 *
You will get with libctl3 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libctl3 |
| Version | 3.1.0-5ubuntu1 |
| Description | library for flexible control files |
| Sub Section | libs |