libapache-ruby1.8 software package provides Ruby libraries for mod_ruby, 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 libapache-ruby1.8
libapache-ruby1.8 is installed in your system.
Make ensure the libapache-ruby1.8 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libapache-ruby1.8 *
You will get with libapache-ruby1.8 package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Ruby |
| Package | libapache-ruby1.8 |
| Version | 1.2.6-2 |
| Description | Ruby libraries for mod_ruby |
| Sub Section | Ruby |