libghc-hscolour-dev software package provides GHC libraries for colourising Haskell code, 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 libghc-hscolour-dev
libghc-hscolour-dev is installed in your system.
Make ensure the libghc-hscolour-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-hscolour-dev *
You will get with libghc-hscolour-dev package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Haskell |
| Package | libghc-hscolour-dev |
| Version | 1.19-3+b2 [armhf], 1.19-3+b1 [ |
| Description | GHC libraries for colourising Haskell code |
| Sub Section | Haskell |