InternalDebug(3) User Contributed Perl Documentation InternalDebug(3) NAME Log::Log4perl::InternalDebug - Dark Magic to enable _INTERNAL_DEBUG 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 Copyright 2002-2026 by Mike Schilli and Kevin Goess . This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.42.2 2026-08-14 InternalDebug(3)