Change how Perl modules are installed

[mat]

Summary

Currently, we install modules which are not versionned at all in a versionned way:

site_perl :      lib/perl5/site_perl/5.18
site_perl_arch : lib/perl5/site_perl/5.18/mach

This changes the layout to:

site_perl :      lib/perl5/site_perl
site_perl_arch : lib/perl5/site_perl/mach/5.18

Allows to have all modules without any .so installed at the same place
whatever the Perl version is, and allows to have versionned versions of the
modules with .so.

Introduce a new plist replacement, SITE_ARCH, containing SITE_PERL/PERL_ARCH/PERL_VER

Remove perllocal.pod from Mk/Uses/perl5.mk, and cleanup ports installing/removing it.

Test Plan

exp-run to hell

[mat]

With Perl 5.18 actually building.

[bapt]

I really like this one :)

[mat]

Toss in a few converted ports.

[mat]

Centralize removing perllocal.pod

Add all ports from the lang category.

The full patch is available at:
https://people.freebsd.org/~mat/patches/new-perl-order.diff

[antoine]

Mk/Uses/perl5.mk

100

why ${PERL_ARCH}/${PERL_VER} and not ${PERL_VER}/${PERL_ARCH} ?

[mat]

Mk/Uses/perl5.mk

100

Well, that way, all of perl .so end up in ${PERL_ARCH} with on subdirectory for each perl version.

[mat]

Be kind to our users and keep the old directories in @INC.

[mat]

For all Perl versions.

[mat]

Finaly, remove .packlist files.

[mat]

Add three @dir that should stay.

[mat]

Update.

[mat]

Add CHANGES and UPDATING to the review.

[mat]

Enhance the texts a bit.

[mat]

Mk/bsd.port.mk

5968

I moved the Perl bits before post-install so that ports doing auto-plist in there don't catch files that will be removed afterwards.

[mat]

Be more consistent.

[brueffer]

CHANGES

28

s/whatever the Perl version is/regardless of the Perl version/

41

"...these old Perl..." Perl versions perhaps?

Mk/Uses/perl5.mk

290

s/no/to/

UPDATING

18

s/another/a different/

30

5.18 I suppose?

[mat]

Update.