libperl-destruct-level-perl 0.02-2build2 (amd64 binary) in ubuntu yakkety

 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.