libcitadel4 software package provides Citadel toolbox, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libcitadel4
libcitadel4 is installed in your system.
Make ensure the libcitadel4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcitadel4 *
You will get with libcitadel4 package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Libraries |
| Package | libcitadel4 |
| Version | 902-1 |
| Description | Citadel toolbox |
| Sub Section | libs |