libghc-monadcatchio-mtl-dev software package provides monad-transformer version of the Control.Exception module, 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-monadcatchio-mtl-dev
libghc-monadcatchio-mtl-dev is installed in your system.
Make ensure the libghc-monadcatchio-mtl-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-monadcatchio-mtl-dev *
You will get with libghc-monadcatchio-mtl-dev package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Haskell |
| Package | libghc-monadcatchio-mtl-dev |
| Version | 0.3.0.4-2+b2 [amd64, armhf, i3 |
| Description | monad-transformer version of the Control.Exception module |
| Sub Section | Haskell |