I always use the -x option when packaging to determine runtime dependancies. Let's take a short example:

marto@Shemp:~/code$ cat ff.pl 
#!/usr/bin/perl

use strict;
use warnings;

use WWW::Mechanize::Firefox;

my $mech = WWW::Mechanize::Firefox->new();
$mech->get('http://perlmonks.org');
[download]

Package 1:

marto@Shemp:~/code$ pp -vvv --log=pp_no_x.log -o ff_no_x ff.pl
[download]

Package 2:

marto@Shemp:~/code$ pp -vvv --log=pp_with_x.log -x -o ff_with_x ff.pl
[download]

diff the logs:

marto@Shemp:~/code$ diff pp_no_x.log pp_with_x.log 
2c2
< /usr/local/bin/pp: Writing PAR on /tmp/ppaOyYR.par
---
> /usr/local/bin/pp: Writing PAR on /tmp/ppLLOin.par
180a181
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22.1/St
+orable.pm as lib/Storable.pm
296a298
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22.1/at
+tributes.pm as lib/attributes.pm
394a397
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22/auto
+/Storable/Storable.so as lib/auto/Storable/Storable.so
396a400
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22/auto
+/attributes/attributes.so as lib/auto/attributes/attributes.so
603a608
> /usr/local/bin/pp: ... adding <string> as lib/Storable.pm
719a725
> /usr/local/bin/pp: ... adding <string> as lib/attributes.pm
817a824
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22/auto
+/Storable/Storable.so as lib/auto/Storable/Storable.so
819a827
> /usr/local/bin/pp: ... adding /usr/lib/i386-linux-gnu/perl/5.22/auto
+/attributes/attributes.so as lib/auto/attributes/attributes.so
851c859
< /usr/local/bin/pp: *** /tmp/ppaOyYR.par: 2141174 bytes read, 1823518
+ compressed, 14% saved.
---
> /usr/local/bin/pp: *** /tmp/ppLLOin.par: 2246924 bytes read, 1873647
+ compressed, 16% saved.
853c861
< /usr/local/bin/pp: Running /tmp/parl0GIttki -Lff_no_x.log -B -Off_no
+_x /tmp/ppaOyYR.par
---
> /usr/local/bin/pp: Running /tmp/parleAdFI2Q -Lff_with_x.log -B -Off_
+with_x /tmp/ppLLOin.par
856,859c864,865
< Packing "Config_git.pl"...
< Written as "Config_git.pl"
< Packing "Config.pm"...
< Written as "Config.pm"
---
> Packing "Config_heavy.pl"...
> Written as "Config_heavy.pl"
861a868,869
> Packing "Config_git.pl"...
> Written as "Config_git.pl"
864,865c872,873
< Packing "Config_heavy.pl"...
< Written as "Config_heavy.pl"
---
> Packing "Config.pm"...
> Written as "Config.pm"
[download]

The packages created are self extracting zip files, so you could just unzip and explore, but it's best to log and compare differences. This comes up fairly regularly, I'll work on a mini tutorial. See also Very Odd Issue When Using pp to Create an .exe File Including Date::Calc/Super Search.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.