lib32ffi5 software package provides Foreign Function Interface library runtime (32bit), 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 lib32ffi5
lib32ffi5 is installed in your system.
Make ensure the lib32ffi5 package were installed using the commands given below,
$ sudo dpkg-query -l | grep lib32ffi5 *
You will get with lib32ffi5 package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Libraries |
| Package | lib32ffi5 |
| Version | 3.0.10-3 |
| Description | Foreign Function Interface library runtime (32bit) |
| Sub Section | libs |