leksah-server software package provides haskell editor - GHC interface, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install leksah-server
leksah-server is installed in your system.
Make ensure the leksah-server package were installed using the commands given below,
$ sudo dpkg-query -l | grep leksah-server *
You will get with leksah-server package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Haskell |
| Package | leksah-server |
| Version | 0.12.0.4-3 |
| Description | haskell editor - GHC interface |
| Sub Section | Haskell |