libqxmpp-dev software package provides Development files for the QXmpp 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 libqxmpp-dev
libqxmpp-dev is installed in your system.
Make ensure the libqxmpp-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libqxmpp-dev *
You will get with libqxmpp-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libqxmpp-dev |
| Version | 0.7.6-1 |
| Description | Development files for the QXmpp library |
| Sub Section | libdevel |