Hmm ... *cough*

Syntax::Construct, IO::String , https://metacpan.org/pod/CPAN::Meta::Spec#prereqs 

  prereqs => {
    runtime => {
      requires => {
        'perl'          => '5.006',

[download]

perlver / Perl::MinimumVersion, 

$ perlver foooooo.pl


   -----------------------------------------
 | file       | explicit | syntax | external |
 | ----------------------------------------- |
 | foooooo.pl | ~        | v5.8.0 | n/a      |
 | ----------------------------------------- |
 | Minimum explicit version : ~                             |
 | Minimum syntax version   : v5.8.0                        |
 | Minimum version of perl  : v5.8.0                        |
   -----------------------------------------

[download]

In reply to Re: How to declare a dependency on PerlIO in a CPAN module? by Anonymous Monk
in thread How to declare a dependency on PerlIO in a CPAN module? by jcb

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