How can I use a new Perl module without install permissions?

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Here is my situation: I know almost nothing about Perl, but it is the only language available on a porting machine. I only have permissions to write in my local work area and not the Perl install location. I need to use the Parallel::ForkManager Perl module from CPAN.

How do I use this Parallel::ForkManager without doing a central install? Is there an environment variable that I can set so it is located?

Lettuce answered 30/10, 2008 at 20:46 Comment(1)

possible duplicate of How can I install CPAN modules locally without root access (DynaLoader.pm line 229 error)? – Numerator 6/11, 2011 at 12:37

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From perlfaq8: How do I keep my own module/library directory?:

When you build modules, tell Perl where to install the modules.

For C-based distributions, use the INSTALL_BASE option when generating Makefiles:

perl Makefile.PL INSTALL_BASE=/mydir/perl

You can set this in your CPAN.pm configuration so modules automatically install in your private library directory when you use the CPAN.pm shell:

% cpan
cpan> o conf makepl_arg INSTALL_BASE=/mydir/perl
cpan> o conf commit

For C-based distributions, use the --install_base option:

perl Build.PL --install_base /mydir/perl

You can configure CPAN.pm to automatically use this option too:

% cpan
cpan> o conf mbuild_arg --install_base /mydir/perl
cpan> o conf commit

INSTALL_BASE tells these tools to put your modules into F. See L for details on how to run your newly installed moudles.

There is one caveat with INSTALL_BASE, though, since it acts differently than the PREFIX and LIB settings that older versions of ExtUtils::MakeMaker advocated. INSTALL_BASE does not support installing modules for multiple versions of Perl or different architectures under the same directory. You should consider if you really want that , and if you do, use the older PREFIX and LIB settings. See the ExtUtils::Makemaker documentation for more details.

Tintype answered 30/10, 2008 at 21:1 Comment(0)

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7

Download package form CPAN to a folder:

wget http://search.cpan.org/CPAN/authors/id/S/SZ/SZABGAB/Parallel-ForkManager-1.06.tar.gz
gunzip Parallel-ForkManager-1.06.tar.gz
tar -xvf Parallel-ForkManager-1.06.tar

before this create a folder in home to store your local modules, now go into downloaded folder and run follwing cmmands:

perl Makefile.PL PREFIX=/home/username/myModules
make
make test
make install

get the path to ForkManager from the installed folder,/home/username/myModules and locate Parallel folder and get the full path to this.

Now in your perl file put these at the beggining

use lib '/home/username/myModules/bin.../Parallel';
use parallel::ForkManager;

--That should do it.

Muck answered 20/2, 2014 at 14:59 Comment(0)

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Check out this post from Mark Dominus

Excerpt:

Set PREFIX=X when building the Makefile

Set INSTALLDIRS=vendor and VENDORPREFIX=X when building the Makefile

Or maybe instead of VENDORPREFIX you need to set INSTALLVENDORLIB or something

Or maybe instead of setting them while building the Makefile you need to set them while running the make install target

Set LIB=X/lib when building the Makefile

Use PAR

Use local::lib

Mark also gives another solution in his blog which takes a bit more space to desribe but boils down to running make and make test but not make install and then using the stuff in blib/.

Actomyosin answered 30/10, 2008 at 21:1 Comment(1)

There's no reason to mess with vendor stuff. You should leave INSTALLDIRS as it is, "site" is correct for locally installed modules. And use INSTALL_BASE, not PREFIX/LIB. – Gisser 6/11, 2008 at 6:36

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There's the PERL5LIB environment variable, and -I on the command line when it comes to using the module. There are mechanisms for telling CPAN and CPANPLUS.

There is information in question 5 of the CPAN manual (perldoc CPAN, or look at CPAN itself).

Jala answered 30/10, 2008 at 21:19 Comment(0)

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3

You can use the -I (capital i) command-line switch followed by the directory where you'll place the module; or try the "use lib" directive followed by the directory.

-Idirectory
        may be used in conjunction with -P to tell the C preprocessor where to look for include files. By default /usr/include and /usr/lib/perl are searched.

Phenylketonuria answered 30/10, 2008 at 21:4 Comment(0)

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use lib 'directory';
use Parallel::ForkManager;

Syndetic answered 30/10, 2008 at 21:15 Comment(1)

This is too minimalistic. As a beginner, I tried using the module-starter from perldoc.perl.org/perlnewmod. I created a module Test-Module and for the love of everything that's holy I cannot use this module using this syntax, and I would expect it to be use lib 'Test-Module'; use Test::Module; – Deathblow 17/7, 2023 at 12:22

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Yes Even You Can Use CPAN

Washout answered 2/11, 2008 at 9:12 Comment(0)

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perl Makefile.PL LIB=/my/perl_modules/lib/
make
make install
PERL5LIB=$PERL5LIB:/my/perl_modules/lib/
perl myperlcode.pl

Calamander answered 27/8, 2012 at 14:52 Comment(0)

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use cpanm -l $DIR_NAME option.

Malley answered 1/11, 2014 at 10:8 Comment(0)

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perlbrew lets you use a local perl and installs it's packages to a local directory.

\curl -L https://install.perlbrew.pl | bash

perlbrew init  # put this in .bash_profile etc

perlbrew install 5.27.11

perlbrew switch 5.27.11

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