Re: [gentoo-user] preparing for profile switch -- major problem

[John Covici]

On Thu, 07 Dec 2017 09:37:56 -0500,
Alan McKinnon wrote:
>
> On 07/12/2017 07:44, John Covici wrote:
> > Hi. In preparing for the profile switch and the emerge -e world, I
> > have run into a serious problem with perl.  I think I saw on this list
> > where perl 5.26 was going to have problems -- maybe until it is
> > stabilized -- but if I mask it off,  I get the following:
>
> Unmask the latest perl and update world with the old profile
>
> This will go smoothly as the perl team did an excellent job making sure
> everything perl-ish in the tree works in concert with everything else.
> However I do recall that trying to do it with a partial world update
> didn't work - too many affected packages, so trying just perl + deps did
> not work. Rather do a normal world update.
>
> Once done, then switch your profile to 17.0 and do the giant emerge -e
> world that requires.
>
> tl;dr
>
> the news message about perl might make you think the sky will fall on
> your head and all your kittens will die, this is actually not true.
>
> The v5.26 updates mostly had to do with perl's search path for perl
> modules. Just like how we've frowned on having "." in the shell PATH for
> decades, perl now implemented something like that for modules too. The
> possible problem anticipated is that modules would now break if a
> modules could not find another module it needs. But this really only
> applied to modules outside the perl distribution itself. And the Gentoo
> perl team dealt with all that already
>
> It's widely discussed all over the internet in all the usual places, you
> are only affected if one of more of these applies:
>
> - you write perl modules yourself (solution: update your own code)
> - you use many ancient cpan modules that no-one touched for yonks
> (solution: maybe use currently supported modules instead)
> - you heavily rely on a third party perl app that might not have been
> updated - musicbrainz and radiator come to mind as examples (solution:
> harass your app vendor)
>
> --
> Alan McKinnon
> alan.mckinnon@×××××.com
>
>

So, I have already switched to the new profile, should I switch back,
do a regular world update, or do the world update with the new profile
-- I am compiling gcc as I write, although its not finished yet, I can
interrupt it if necessary.

-- 
Your life is like a penny.  You're going to lose it.  The question is:
How do
you spend it?

         John Covici
         covici@××××××××××.com