Bug #42731 for PAR-Packer: pp Breaks @INC

Fri Jan 23 13:17:48 2009 goneri [...] cpan.org - Ticket created

Subject:

pp Breaks @INC

Hi, Thank you for this great tool. Today I got this strange behaviour with @INC content. I can reproduce the problem on Linux and Solaris. solaris$cat test #!/usr/bin/perl use Data::Dumper; print Dumper(@INC); solaris$perl test $VAR1 = '/home2/goneri/tmp/build/opt/ocsinventory-agent/lib/perl5/5.10.0/sun4-solaris'; $VAR2 = '/home2/goneri/tmp/build/opt/ocsinventory-agent/lib/perl5/5.10.0'; $VAR3 = '/home2/goneri/tmp/build/opt/ocsinventory-agent/lib/perl5/site_perl/5.10.0/sun4-solaris'; $VAR4 = '/home2/goneri/tmp/build/opt/ocsinventory-agent/lib/perl5/site_perl/5.10.0'; $VAR5 = '.'; pp -B -p test -vvv -o test.par (...) pp -o test.bin test.par (...) solaris$./test.bin $VAR1 = sub { "DUMMY" }; $VAR2 = sub { "DUMMY" };

Fri Jan 23 18:40:40 2009 smueller [...] cpan.org - Correspondence added

Hi, thanks for the bug report, but the behaviour you describe is on purpose. When you use pp to produce a stand-alone binary executable, it clears the INC paths of your perl. That is on purpose so *if* it breaks, it will break on your development machine already. Otherwise you might be relying on local stuff that is not present on the target machines. If you modify @INC at run-time, the paths will be preserved. This behaviour is documented in the pp help. Quoting the relevant synopsis: % pp -B -p -o out.par file # same as above, but bundles core modules # and removes any local paths from @INC % pp -P -o out.pl file # Creates 'out.pl' from 'file' % pp -B -p -o out.pl file # same as above, but bundles core modules # and removes any local paths from @INC # (-B is assumed when making executables) "Since PAR version 0.953, this also strips any local paths from the list of module search paths C<@INC> before running the contained script." It *is* possible to override this behaviour (modify/replace main.pl in the par file), but I would strongly discourage this. Step back and think about whether you really want your executable to be dependent on the perl it was built with. Either way, this is not a bug but intended so I will close the ticket. For further discussion or assistance, please send any correspondence to the PAR mailing list directly. Thanks and best regards, Steffen

Fri Jan 23 18:40:41 2009 The RT System itself - Status changed from 'new' to 'open'

Fri Jan 23 18:40:43 2009 smueller [...] cpan.org - Status changed from 'open' to 'rejected'

Fri Jan 23 21:53:57 2009 goneri [...] rulezlan.org - Correspondence added

CC:	GONERI [...] cpan.org
Subject:	Re: [rt.cpan.org #42731] pp Breaks @INC
Date:	Sat, 24 Jan 2009 02:43:50 +0100
To:	Steffen Mueller via RT <bug-PAR-Packer [...] rt.cpan.org>
From:	Gonéri Le Bouder <goneri [...] rulezlan.org>

On Fri, Jan 23, 2009 at 06:40:42PM -0500, Steffen Mueller via RT wrote: Show quoted text

> <URL: https://rt.cpan.org/Ticket/Display.html?id=42731 > > > Hi, >

Thank you Steffen for the long and answer. I still think it's a minor bug since @INC content is not a scalar or nothing as people expect and this may break stuff. Best regards, Gonéri Le Bouder

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Fri Jan 23 21:53:58 2009 The RT System itself - Status changed from 'rejected' to 'open'

Sat Jan 24 11:31:02 2009 smueller [...] cpan.org - Status changed from 'open' to 'rejected'