podlators: load PerlIO before trying to use its functions

[xenu]

Cherry-picked from rra/podlators#28

Since it's a cherry-pick, podlators was marked as CUSTOMIZED and its version was bumped.

Fixes #21841

[rra]

Looks correct to me as podlators maintainer.

[Leont]

The fix looks good to me, but I'd like it if someone commits to uncustomizing things after 5.40 comes out. This step is often forgotten (or done incompletely) creating extra work later when someone has to figure out what's going on.

[Leont]

An alternative solution may be to release a 4.15 release with only this fix (that wouldn't be indexed as it's version is lower than the current highest), and sync that to blead.

[Leont]

This is causing the following warning in MakeMaker

Argument "5.01_01" isn't numeric in numeric ge (>=) at /home/leont/perl5/perlbrew/perls/perl-5.39.10/lib/5.39.10/ExtUtils/Command/MM.pm line 127.

That line does

delete $options{utf8} unless $Pod::Man::VERSION >= 2.17;

Either we need to include version evals on the podlator sites, or it needs to call the VERSION method on that line. Or both.

[mauke]

I don't think calling ->VERSION would make a difference here.

Also, eval is massive overkill. Wouldn't

our $VERSION = '5.01_01';
$VERSION =~ tr/_//d;

suffice?

[Leont]

Also, eval is massive overkill. Wouldn't tr suffice?

Yeah that's exactly what @haarg ended up doing in 22180