libgladeui-dev software package provides GTK+ User Interface Build core library (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 libgladeui-dev
libgladeui-dev is installed in your system.
Make ensure the libgladeui-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libgladeui-dev *
You will get with libgladeui-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libgladeui-dev |
| Version | 3.16.1-0ubuntu2 |
| Description | GTK+ User Interface Build core library (development files) |
| Sub Section | libdevel |