Devel::TraceUse
---------------
Show the modules your program loads, recursively.
An apparently simple program may load a lot of modules. That's useful, but
sometimes you may wonder exactly which part of your program loads which module.
Devel::TraceUse can analyze a program to see which part used which module.
I recommend using it from the command line:
 $ perl -d:TraceUse your_program.pl
This will display a tree of the modules ultimately used to run your program.
(It also runs your program with only a little startup cost all the way through
to the end.)
 Modules used from your_program.pl:
 1. strict 1.04, your_program.pl line 1 [main]
 2. warnings 1.06, your_program.pl line 2 [main]
 3. Getopt::Long 2.37, your_program.pl line 3 [main]
 4. vars 1.01, Getopt/Long.pm line 37
 5. warnings::register 1.01, vars.pm line 7
 6. Exporter 5.62, Getopt/Long.pm line 43
 9. Exporter::Heavy 5.62, Exporter.pm line 18
 7. constant 1.13, Getopt/Long.pm line 226
 8. overload 1.06, Getopt/Long.pm line 1487 [Getopt::Long::CallBack]
INSTALLATION
To install this module, run the following commands:
 $ perl Build.PL
 $ perl ./Build
 $ perl ./Build test
 $ sudo perl ./Build install
SUPPORT AND DOCUMENTATION
After installing, you can find documentation for this module with the perldoc
command.
 $ perldoc Devel::TraceUse
Alternately, read hack #74 in Perl Hacks, published by O'Reilly Media in 2006.
COPYRIGHT AND LICENCE
Copyright (C) 2006 chromatic.
Copyright (C) 2010 Philippe Bruhat (BooK), for the rewrite.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.