flatzinc software package provides constraint problem modelling language, 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 flatzinc
flatzinc is installed in your system.
Make ensure the flatzinc package were installed using the commands given below,
$ sudo dpkg-query -l | grep flatzinc *
You will get with flatzinc package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Development |
| Package | flatzinc |
| Version | 3.7.3-1 |
| Description | constraint problem modelling language |
| Sub Section | devel |