libicu-dev software package provides Development files for International Components for Unicode, 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 libicu-dev
libicu-dev is installed in your system.
Make ensure the libicu-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libicu-dev *
You will get with libicu-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libicu-dev |
| Version | 52.1-3ubuntu0.4 [amd64, i386], |
| Description | Development files for International Components for Unicode |
| Sub Section | libdevel |