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 return $handler->($v);
}

=head2 C<perl_version_c2g $version>

Converts a perl version number as you can find it in CPAN prerequisites to a Gentoo version number.

=cut

sub perl_version_c2g {
 my ($v) = @_;

 return unless defined $v and $v =~ /^[0-9\.]+$/;

 my @parts;
 if (my ($version, $subversion) = $v =~ /^([0-9]+)\.(0[^\.]+)$/) {
  my $len = length $subversion;
  if (my $pad = $len % 3) {
   $subversion .= '0' x (3 - $pad);
  }
  @parts = ($version, $subversion =~ /(.{1,3})/g);
 } else {
  @parts = split /\./, $v;
 }

 return join '.', map int, @parts;
}

=head2 C<get_portage_timestamp $portage>

Get the numerical timestamp associated with the portage tree located at C<$portage>.
Requires L<POSIX::strptime>, and returns C<undef> if it is not available.

=cut

sub get_portage_timestamp {
 my ($portage) = @_;

 {
  local $@;
  eval { require POSIX::strptime } or return;
 }

 my $file = File::Spec->catfile($portage, 'metadata', 'timestamp.chk');
 return unless -e $file;

 my $timestamp = do {
  open my $fh, '<', $file or return;
  local $/;
  <$fh>;
 };
 s/^\s*//, s/\s*$// for $timestamp;

 my $shift = 0;
 if ($timestamp =~ s/\s+([+-])([0-9]{2})([0-9]{2})$//) {
  $shift = ($2 * 60 + $3) * 60;
  $shift = -$shift if $1 eq '-';
 }

 my $old_lc_all = POSIX::setlocale(POSIX::LC_ALL());
 POSIX::setlocale(POSIX::LC_ALL(), 'C');
 $timestamp = POSIX::mktime(
  POSIX::strptime($timestamp, '%a, %d %b %Y %H:%M:%S')
 );
 POSIX::setlocale(POSIX::LC_ALL(), $old_lc_all);
 $timestamp += $shift;

 return $timestamp;
}

=head2 C<TIMESTAMP>

Numerical timestamp associated with the revision of the portage tree that was used for generating the corrections to the natural cpan-to-gentoo mapping listed in this module.

=cut

sub TIMESTAMP () { 1339737301 }

=head1 SEE ALSO

L<CPANPLUS::Dist::Gentoo>.

=head1 AUTHOR

Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.

You can contact me by mail or on C<irc.perl.org> (vincent).

=head1 BUGS

Please report any bugs or feature requests to C<bug-cpanplus-dist-gentoo at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=CPANPLUS-Dist-Gentoo>.
I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

=head1 SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc CPANPLUS::Dist::Gentoo

=head1 COPYRIGHT & LICENSE

Copyright 2009,2010,2011,2012 Vincent Pit, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

=cut

1; # End of CPANPLUS::Dist::Gentoo::Maps

__DATA__
AcePerl                 Ace
CGI-Simple              Cgi-Simple
CGI-SpeedyCGI           SpeedyCGI
CPAN-Mini-Phalanx100    CPAN-Mini-Phalanx
Cache-Mmap              cache-mmap
Class-Loader            class-loader
Class-ReturnValue       class-returnvalue
Config-General          config-general
Convert-ASCII-Armour    convert-ascii-armour
Convert-PEM             convert-pem
Crypt-CBC               crypt-cbc
Crypt-DES_EDE3          crypt-des-ede3
Crypt-DH                crypt-dh
Crypt-DSA               crypt-dsa
Crypt-IDEA              crypt-idea
Crypt-Primes            crypt-primes
Crypt-RSA               crypt-rsa
Crypt-Random            crypt-random
DBIx-SearchBuilder      dbix-searchbuilder
Data-Buffer             data-buffer
Date-Manip              DateManip
Digest                  digest-base
Digest-BubbleBabble     digest-bubblebabble
Digest-MD2              digest-md2
ExtUtils-Depends        extutils-depends
ExtUtils-PkgConfig      extutils-pkgconfig
Frontier-RPC            frontier-rpc
Gimp                    gimp-perl
Glib                    glib-perl
Gnome2                  gnome2-perl
Gnome2-Canvas           gnome2-canvas
Gnome2-GConf            gnome2-gconf
Gnome2-VFS              gnome2-vfs-perl
Gnome2-Wnck             gnome2-wnck
Gtk2                    gtk2-perl
Gtk2-Ex-FormFactory     gtk2-ex-formfactory
Gtk2-GladeXML           gtk2-gladexml
Gtk2-Spell              gtk2-spell
Gtk2-TrayIcon           gtk2-trayicon
Gtk2-TrayManager        gtk2-traymanager
Gtk2Fu                  gtk2-fu
I18N-LangTags           i18n-langtags
Image-Info              ImageInfo
Image-Size              ImageSize
Inline-Files            inline-files
Locale-Maketext         locale-maketext
Locale-Maketext-Fuzzy   locale-maketext-fuzzy
Locale-Maketext-Lexicon locale-maketext-lexicon
Log-Dispatch            log-dispatch
Math-Pari               math-pari
Module-Info             module-info
MogileFS-Server         mogilefs-server
NTLM                    Authen-NTLM
Net-Ping                net-ping
Net-SFTP                net-sftp
Net-SSH-Perl            net-ssh-perl
Net-Server              net-server
OLE-Storage_Lite        OLE-StorageLite
Ogg-Vorbis-Header       ogg-vorbis-header
PathTools               File-Spec
Perl-Tidy               perltidy
Pod-Parser              PodParser
Regexp-Common           regexp-common
Set-Scalar              set-scalar
String-CRC32            string-crc32
Template-Plugin-Latex   Template-Latex
Text-Autoformat         text-autoformat
Text-Reform             text-reform
Text-Template           text-template
Text-Wrapper            text-wrapper
Tie-EncryptedHash       tie-encryptedhash
Time-Period             Period
Tk                      perl-tk
Wx                      wxperl
XML-Sablotron           XML-Sablot
YAML                    yaml
gettext                 Locale-gettext
txt2html                TextToHTML