[MacPorts] #51352: perl5.24: new port; change flags for other perl versions

[MacPorts]

#51352: perl5.24: new port; change flags for other perl versions
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 Reporter:  mojca@…  |      Owner:  mojca@…
     Type:  update   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:
 Keywords:           |       Port:  perl5 perl5.24
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 I'm adding a new subport for Perl 5.24, but it turned out that flags
 `-Dccflags` are problematic and `-Accflags` should be used instead (see
 #51330).

 This means that we probably need to rebuild all older Perl versions as
 well (unless we only change flags for Perl 5.24). I'm confused because I
 don't understand the fact that `perl5.22 -V` still outputs `-DPERL_DARWIN`
 even though it probably doesn't use it during the build.

 Some further minor changes were added to support installation of RC.

 I would be grateful for wider testing before committing (and breaking)
 anything (including running the tests). I would commit 5.24, but I'm
 afraid of screwed something up in earlier versions.

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Ticket URL: <https://trac.macports.org/ticket/51352>
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