libsub-uplevel-perl software package provides module to spoof the Perl call stack, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libsub-uplevel-perl
libsub-uplevel-perl is installed in your system.
Make ensure the libsub-uplevel-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libsub-uplevel-perl *
You will get with libsub-uplevel-perl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libsub-uplevel-perl |
| Version | 0.2400-1 |
| Description | module to spoof the Perl call stack |
| Sub Section | Perl |