libautovivification-perl software package provides pragma for lexically disabling autovivification, 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 libautovivification-perl
libautovivification-perl is installed in your system.
Make ensure the libautovivification-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libautovivification-perl *
You will get with libautovivification-perl package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Perl |
| Package | libautovivification-perl |
| Version | 0.10-1+b1 [amd64, armel, i386, |
| Description | pragma for lexically disabling autovivification |
| Sub Section | Perl |