Re: [gentoo-user] Re: perl versioning problem, how to get beyond for @world

[Arttu V.]

It looks like the @INC list (the directory list perl uses for finding
its modules) is not right or is not processed right. Only one
directory is looked into? (You can see @INC with "perl -V", it should
be up to about ten directories on a Gentoo install.)

Unless you really, really want to know exactly which bit from which
package is sideways you might get out of the hole simply with:
perl-cleaner --reallyall

-- 
Arttu V.

On 5/18/12, Harry Putnam <reader@×××××××.com> wrote:
> Alan McKinnon <alan.mckinnon@×××××.com> writes:
>
> [...]
>
>>> | Checking prerequisites...
>>> |   build_requires:
>>> |     !  Parse::CPAN::Meta (1.40) is installed, but we need version >=
>>> |     1.4401
>>> | ERRORS/WARNINGS FOUND IN PREREQUISITES.  You may wish to install
>>> the versions | of the modules indicated above before proceeding with
>>> this installation |
>>> | Could not create MYMETA files
>>> | Creating new 'Build' script for 'Module-Build' version '0.40'
>>> | Copied META.yml to MYMETA.yml for bootstrapping
>>> |
>>> | These additional prerequisites must be installed:
>>> |   requires:
>>> |     ! version (we need version 0.87)
>>> | >>> Source configured.
>>> | >>> Compiling source in
>>> | /var/tmp/portage/perl-core/Module-Build-0.400.0/work/Module-Build-0.40
>>> ...
>>> | version version 0.87 required--this is only version 0.82 at
>>> | /usr/lib/perl5/vendor_perl/5.12.4/Module/Metadata
>>> | .pm line 20.
>>> | [...]
>>> `----
>>>
>>> I can't really see what to do about this...
>>>
>>> What is installed is:
>>>
>>> ,----
>>> | # eix -Ic|grep  Parse.*Meta
>>> | [I] perl-core/Parse-CPAN-Meta (1.440.400@05/03/12): Parse META.yml
>>> and other | similar CPAN metadata files
>>> | [I] virtual/perl-Parse-CPAN-Meta (1.440.400@04/25/12): Virtual for
>>> Parse-CPAN-Meta `----
>>
>> Perl and any package manager tend to make an ugly combination...
>>
>> Now, I've never seen this specific error before but it looks like perl
>> thinks your installed Parse-CPAN-Meta is still the old version 1.40. It
>> doesn't realize what portage did in the interim.
>>
>> Have a look in that ebuild and 1.440.400 and you'll see quite a
>> difference.
>
> Quite a difference in what?  Or compared to what?
>
>> Does unmerging and remerging Parse-CPAN-Meta fix anything?
>
> I tried emerge -vC the core  Parse-CPAN-Meta and the Virtual
> Parse-CPAN-Meta
>
> Then eix-sync, then emerge -vuD world
>
> When it gets to building `perl-core/Module-Build-0.400.0'
>
> The same failure happens:
>
> ,----
> | [...]
> | Checking prerequisites...
> |   build_requires:
> |     !  Parse::CPAN::Meta (1.40) is installed, but we need version >=
> 1.4401
> |
> | ERRORS/WARNINGS FOUND IN PREREQUISITES.  You may wish to install the
> versions
> | of the modules indicated above before proceeding with this installation
> |
> | Could not create MYMETA files
> | Creating new 'Build' script for 'Module-Build' version '0.40'
> | Copied META.yml to MYMETA.yml for bootstrapping
> |
> | These additional prerequisites must be installed:
> |   requires:
> |     ! version (we need version 0.87)
> | >>> Source configured.
> | [...]
> `----
>
> emerge has installed two very different [...]//Parse/CPAN/Meta.pm
>
> ,----
> |  ls -l /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm \
> |       /usr/lib/perl5/vendor_perl/5.12.4/Parse/CPAN/Meta.pm
> |
> | [...]10522 Apr 25 20:49 /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm
> | [...] 7582 May 11 20:13
> /usr/lib/perl5/vendor_perl/5.12.4/Parse/CPAN/Meta.pm
> `----
>
> And they say very different things:
>
> From /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm:
>
>  [...]
>    # Class structure
>    require 5.004;
>    require Exporter;
>    $Parse::CPAN::Meta::VERSION   = '1.40';
>    @Parse::CPAN::Meta::ISA       = qw{ Exporter      };
>    @Parse::CPAN::Meta::EXPORT_OK = qw{ Load LoadFile };
> [...]
>
> From /usr/lib/perl5/vendor_perl/5.12.4/Parse/CPAN/Meta.pm:
>
>    # Class structure
>    require 5.004;
>    require Exporter;
>    $Parse::CPAN::Meta::VERSION   = '1.4404';
>    @Parse::CPAN::Meta::ISA       = qw{ Exporter      };
>    @Parse::CPAN::Meta::EXPORT_OK = qw{ Load LoadFile };
>
>   One looks for 1.40, the other for 1.4404
>
> I don't know what the code does but, is this possibly the problem?  If
> so its not at all clear what to do about it.
>
> qfile on /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm
> Shows it comes from the main perl installation:
>
>   qfile /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm
> ,----
> | dev-lang/perl (/usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm)
> `----
> So that is from the main perl installation.
>
> Just renaming /usr/lib/perl5/5.12.4/Parse/CPAN/Meta.pm to
>              /usr/lib/perl5/5.12.4/Parse/CPAN/XMeta.pmX
>
> Causes a new miss match on version when building
> perl-core/Module-Build-0.400.0
> ,----
> | *** BOOTSTRAPPING version ***
> | Could not create MYMETA files
> | Creating new 'Build' script for 'Module-Build' version '0.40'
> | Copied META.yml to MYMETA.yml for bootstrapping
> |
> | These additional prerequisites must be installed:
> |   requires:
> |     ! version (we need version 0.87)
> | >>> Source configured.
> | >>> Compiling source in
> /var/tmp/portage/perl-core/Module-Build-0.400.0/work/Module-Build-0.40 ...
> | version version 0.87 required--this is only version 0.82 at
> /usr/lib/perl5/vendor_perl/5.12.4/Module/Metadata.pm line 20.
> `----
>
> So it appears there is some deeper mangling somewhere.
>
>
>
>