libswiften2 software package provides XMPP 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 libswiften2
libswiften2 is installed in your system.
Make ensure the libswiften2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libswiften2 *
You will get with libswiften2 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Network |
| Package | libswiften2 |
| Version | 2.0+dev6-1 |
| Description | XMPP library |
| Sub Section | Net |