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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.