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

[Alan McKinnon <alan.mckinnon@gmail.com>]

On Mon, 14 May 2012 18:58:29 -0400
Harry Putnam <reader@newsguy.com> wrote:

> I have a light minimalish system (noX) and not a lot installed but
> for a the last few weeks, when I try to update with emerge -vuD world
> 
> It caves about a perl versioning problem, and specifically about:
>   perl-core/Module-Build-0.400.0
> 
> Abbreviated output:
> ,----
> | >>> Emerging (1 of 12) perl-core/Module-Build-0.400.0
> |  * Module-Build-0.40.tar.gz RMD160 SHA1 SHA256
> size ;-) ... |                       [ ok ]
> | >>> cfg-update-1.8.2-r1: Checksum index is up-to-date ...
> | >>> Unpacking source...
> | >>> Unpacking Module-Build-0.40.tar.gz to
> | /var/tmp/portage/perl-core/Module-Build-0.400.0/work
> | >>> Source unpacked
> in /var/tmp/portage/perl-core/Module-Build-0.400.0/work | >>>
> Preparing source in
> | /var/tmp/portage/perl-core/Module-Build-0.400.0/work/Module-Build-0.40 ...
> | >>> Source prepared. | >>> Configuring source in
> | /var/tmp/portage/perl-core/Module-Build-0.400.0/work/Module-Build-0.40 ...
> |  * Using Module::Build
> |  * perl Build.PL --installdirs=vendor --libdoc=
> | --destdir=/var/tmp/portage/perl-core/Module-Build-0.400.0/ima
> | ge/ --create_packlist=0
> | *** BOOTSTRAPPING version ***
> | 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.

Does unmerging and remerging Parse-CPAN-Meta fix anything?

-- 
Alan McKinnnon
alan.mckinnon@gmail.com