libproxy-dev software package provides automatic proxy configuration management library (devel), 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 libproxy-dev
libproxy-dev is installed in your system.
Make ensure the libproxy-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libproxy-dev *
You will get with libproxy-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libproxy-dev |
| Version | 0.4.11-0ubuntu4 |
| Description | automatic proxy configuration management library (devel) |
| Sub Section | libdevel |