Install libperl-destruct-level-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libperl-destruct-level-perl
Perl module to change Perl's destruction level
Perl::Destruct::Level is an interface allowing one to change Perl's internal destruction level. While this functionality is available through the PERL_DESTRUCT_LEVEL environment variable when perl is compiled with debug support, this module provides it for perls without -DDEBUGGING. . The default value of the destruct level is 0; it means that perl won't bother destroying all its internal data structures, but let the OS do the cleanup for it at exit. . Relevant values recognized by perl are 1 and 2. Consult your source code to know exactly what they mean. Note that some embedded environments might extend the meaning of the destruction level for their own purposes: mod_perl does that, for example.