Re: Why is lib/perl5 not added to INC for perls installed using perlbrew

Welcome to the Monastery.

I also have Perl 5.32.0 installed using Perlbrew. From the description of your setup, mine seems to be identical; of course, mine may differ from yours in areas that you haven't mentioned.

$ perlbrew list
 * perl-5.32.0
   perl-5.30.0

$ which perl
/home/ken/perl5/perlbrew/perls/perl-5.32.0/bin/perl

$ echo $PERLBREW_ROOT
/home/ken/perl5/perlbrew

$ $PERLBREW_ROOT/perls/perl-5.32.0/bin/perl -V
Summary of my perl5 (revision 5 version 32 subversion 0) configuration
+:
...
  @INC:
    /home/ken/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0/cy
+gwin-thread-multi
    /home/ken/perl5/perlbrew/perls/perl-5.32.0/lib/site_perl/5.32.0
    /home/ken/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0/cygwin-threa
+d-multi
    /home/ken/perl5/perlbrew/perls/perl-5.32.0/lib/5.32.0

$ ls -l $PERLBREW_ROOT/perls/perl-5.32.0/lib/perl5
ls: cannot access '/home/ken/perl5/perlbrew/perls/perl-5.32.0/lib/perl
+5': No such file or directory
[download]

"Why isn't this included automatically in the @INC?"

Short answer: because it doesn't exist.

Longer answer. I've been using Perlbrew for a very long time, certainly more than a decade, and I don't recall $PERLBREW_ROOT/perls/<install-name>/lib/perl5 ever being a standard Perlbrew directory. This would be why such a path would not be automatically added to @INC.

I'm not a user of cpanm, I use cpan. As such, I'm not in any position to comment on your use of cpanm beyond suggesting that you check that you are using it correctly. I know cpanm is widely used: if you have questions about that, you can definitely get help about it here.

If you have modules installed in non-standard locations, consider using PERL5LIB (see "perlrun: ENVIRONMENT") or use the lib pragma. There are other ways of dealing with this but that's probably jumping the gun and heading off-topic for the current issue.

Minor in-joke for anyone who recalls "Re^4: [OT] 'perl' is not the 'perl' reported by 'which perl'": yes, I did remember type but thought which was more appropriate here. However, just for completeness:

$ type perl
perl is /home/ken/perl5/perlbrew/perls/perl-5.32.0/bin/perl
[download]

— Ken

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Re^2: Why is lib/perl5 not added to INC for perls installed using perlbrew by tobyink (Canon) on Sep 11, 2020 at 15:50 UTC
"I've been using Perlbrew for a very long time, certainly more than a decade, and I don't recall $PERLBREW_ROOT/perls/<install-name>/lib/perl5 ever being a standard Perlbrew directory." None of my perlbrew installations have such a directory either. And I do use cpanm. toby döt ink	[reply]
Re^3: Why is lib/perl5 not added to INC for perls installed using perlbrew by areldy_exten (Novice) on Sep 12, 2020 at 13:09 UTC
Thank you kcott and tobyinky for the replies. My purpose is to install a self-contained perl and a collection of modules all together. Such that I can have my scripts work seamlessly by just pointing the shebang to the perl bin. E.g. `$PERLBREW_ROOT/perls/perl-5.32.0/bin/perl` in this case. As I mentioned in my post I installed the modules by doing `cd $PERLBREW_ROOT/perls/perl-5.32.0 cpanm -L . MODULE` [download] The cpanm is localed at `$PERLBREW_ROOT/bin/cpanm` This has resulted in the following tree (truncated): `perls \-- perl-5.32.0/ \|-- bin/ \| \|-- cpan* \| \|-- perl* \| \|-- perl5.32.0* \| \-- zipdetails* \-- lib/ \|-- 5.32.0/ \| \|-- AnyDBM_File.pm \| \|-- App/ \| \|-- x86_64-linux-thread-multi-ld/ \| \-- XSLoader.pm \|-- perl5/ \| \|-- Alien/ \| \|-- alienfile.pm \| \|-- x86_64-linux-thread-multi-ld/ \| \-- XML/ \-- site_perl/ \-- 5.32.0/` [download] As you can see it has created the perl5/ folder I mention. Could you please suggest the correct way to install modules in this perl lib such that the module files sit in the given lib/5.32.0 or lib/site_perl area? Thank you again!	[reply] [d/l] [select]
Re^4: Why is lib/perl5 not added to INC for perls installed using perlbrew by tobyink (Canon) on Sep 14, 2020 at 00:35 UTC
You should be able to just run: `cpanm Module` [download] Don't use `-L .` — it already knows the right place to install it. toby döt ink	[reply] [d/l] [select]
Re^5: Why is lib/perl5 not added to INC for perls installed using perlbrew by areldy_exten (Novice) on Sep 14, 2020 at 07:19 UTC
Re^4: Why is lib/perl5 not added to INC for perls installed using perlbrew by kcott (Archbishop) on Sep 14, 2020 at 06:11 UTC
"Such that I can have my scripts work seamlessly by just pointing the shebang to the perl bin. E.g. `$PERLBREW_ROOT/perls/perl-5.32.0/bin/perl` in this case." I start all of my scripts with the following shebang. This includes those I write for myself, scripts I post here, and those I write for work in a production environment. `#!/usr/bin/env perl` [download] That may work for you also. See perlrun for more details about this. — Ken	[reply] [d/l] [select]
Re^5: Why is lib/perl5 not added to INC for perls installed using perlbrew by tobyink (Canon) on Sep 14, 2020 at 08:21 UTC
Re^5: Why is lib/perl5 not added to INC for perls installed using perlbrew by afoken (Chancellor) on Sep 14, 2020 at 13:03 UTC


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