the module is being loaded inside an eval .. which I'm guessing is why the debugger never sees it load

No, still works for me: 

 $ perldoc -l File::Spec::Unix
/usr/local/lib/perl5/5.8.4/File/Spec/Unix.pm
 $ perl -de 'eval { require File::Spec }'

Loading DB routines from perl5db.pl version 1.25
Editor support available.
Enter h or `h h' for help, or `man perldebug' for more help.
main::(-e:1):   eval { require File::Spec }

  DB<1> b load /usr/local/lib/perl5/5.8.4/File/Spec/Unix.pm

Will stop on load of `/usr/local/lib/perl5/5.8.4/File/Spec/Unix.pm'.

  DB<2> c

'/usr/local/lib/perl5/5.8.4/File/Spec/Unix.pm' loaded...
File::Spec::Unix::(/usr/local/lib/perl5/5.8.4/File/Spec/Unix.pm:6):
6:      $VERSION = '1.5';

  DB<2> q

[download]

- tye        

In reply to Re^2: debugger with b load "file" (!eval) by tye
in thread debugger with b load "file" by Japhering

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