Upgrading perl on -CURRENT

[Matthew Seaman]

On 20/01/2016 03:56, Chris H wrote:
> On Tue, 19 Jan 2016 16:58:10 -0800 "Chris H" <bsd-lists at bsdforge.com> wrote
> 
>> I just finished a long overdue update on one of my
>> boxes that track -CURRENT. It's on 5.18. Is it enough
>> to cd /usr/ports/lang/perl5.20;
>> make; make deinstall && make reinstall clean ?

> I probably should have also mentioned that I already changed
> DEFAULT_VERSIONS+=perl5=5.18 to perl5=5.20

No, you're going to need to do more than that.  There are critical parts
of the perl package that are version specific.  For instance:

% locate perl.so
/usr/local/lib/perl5/5.22/mach/CORE/libperl.so
/usr/local/lib/perl5/5.22/mach/CORE/libperl.so.5.22
/usr/local/lib/perl5/5.22/mach/CORE/libperl.so.5.22.1

This means that anything that embeds a perl interpreter will need
rebuilding to use the new perl.  That includes applications like net-snmpd.

The same goes for any perl modules that include compiled (XS) code.  For
instance:

% locate Socket6.so
/usr/local/lib/perl5/site_perl/mach/5.22/auto/Socket6/Socket6.so

All those modules will need rebuilding.  Pure-perl modules should be OK
without.

By far the easiest and cleanest perl upgrade mechanism I've found is to
use pkg(8) -- modify the DEFAULT_VERSIONS in your poudriere config and
do a 'poudriere bulk' which will rebuild anything with a dependency on
perl in your repo.  Then a simple 'pkg upgrade' will do the trick.

One thing to watch out for: there's no longer a /usr/bin/perl symlink
with perl-5.22 so you'll need to check any #! lines in locally developed
scripts: change that either to '#!/usr/bin/env perl' (preferred) or
'#!/usr/local/bin/perl' in situations where the script is run with $PATH
not including /usr/local/bin -- for instance perl  run at boot from
${LOCALBASE}/etc/rc.d scripts.

	Cheers,

	Matthew


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