libghc-wai-websockets-dev software package provides bridge between WAI and the haskell websockets library, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libghc-wai-websockets-dev
libghc-wai-websockets-dev is installed in your system.
Make ensure the libghc-wai-websockets-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-wai-websockets-dev *
You will get with libghc-wai-websockets-dev package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Haskell |
| Package | libghc-wai-websockets-dev |
| Version | 3.0.0.1-1+b2 |
| Description | bridge between WAI and the haskell websockets library |
| Sub Section | Haskell |