libicns-dev software package provides libicns 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 libicns-dev
libicns-dev is installed in your system.
Make ensure the libicns-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libicns-dev *
You will get with libicns-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libicns-dev |
| Version | 0.8.1-1 |
| Description | libicns development files |
| Sub Section | libdevel |