libg20 software package provides g2 2D graphics library, 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 libg20
libg20 is installed in your system.
Make ensure the libg20 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libg20 *
You will get with libg20 package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Libraries |
| Package | libg20 |
| Version | 0.72-2.1 |
| Description | g2 2D graphics library |
| Sub Section | libs |