InternalDebug(3) User Contributed Perl Documentation InternalDebug(3)

# [NAME](#NAME)

Log::Log4perl::InternalDebug - Dark Magic to enable \_INTERNAL\_DEBUG

# [DESCRIPTION](#DESCRIPTION)

When called with

```
    perl -MLog::Log4perl::InternalDebug t/001Test.t
```

scripts will run with \_INTERNAL\_DEBUG set to a true value and hence print internal Log4perl debugging information.

# [LICENSE](#LICENSE)

Copyright 2002-2026 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

2026-08-17 perl v5.44.0

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Document: Log::Log4perl::InternalDebug(3pm) from perl-log-log4perl 1.58-r1 (Chainguard OS)
Source: https://github.com/mschilli/log4perl.git