libghc-wai-eventsource-dev software package provides WAI support for server-sent events, 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 libghc-wai-eventsource-dev
libghc-wai-eventsource-dev is installed in your system.
Make ensure the libghc-wai-eventsource-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-wai-eventsource-dev *
You will get with libghc-wai-eventsource-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Haskell |
| Package | libghc-wai-eventsource-dev |
| Version | 1.3.0.4-2build4 |
| Description | WAI support for server-sent events |
| Sub Section | Haskell |