Update ExtUtils-MakeMaker to CPAN version 6.58

  [DELTA]

  6.58  Wed Jul  6 14:17:06 PDT 2011
    No changes since 6.57_11

  6.57_11  Thu May 19 17:26:31 PDT 2011
    Bug Fixes
    * Changed CPAN::Meta to accept version objects. [github #16]
    * Massage bad versions and warn the user about them. [github #15]
    * Protect against CPAN::Meta dying during metafile validation
      and generation.

    VMS
    * Fix prereq.t to work around "local %ENV = %ENV" bug

    Win32
    * Liblist::Kid can now recognize long compiler paths
      (Christian Walde) [github #11]

  6.57_10  Sun, 03 Apr 2011 19:36:38 +1000
    Bug Fixes
    * Relaxed strictures on prerequisite versions.  Invalid versions now
      issue a warning and are set to 0 rather than dying. [github #7]
    * Upgraded CPAN::Meta to 2.110930 which fixes a glitch in writing
      MYMETA.yml if your module's version number was 1.4. [github #9]
    * Convert LICENSE entries which are unknown to CPAN::Meta to
      "unknown" rather than dying. [github #10]

  6.57_09  Mon, 28 Mar 2011 11:13:39 +1100
    Misc
    * Make CPAN ignore bundled modules
    * Accidentally rolled Version::Requirements into the version bundle
    * Deleted now unused ExtUtils::MakeMaker::YAML

  6.57_08  Sun, 27 Mar 2011 21:52:47 +1100
    VMS
    * Removed dependency on cc_runtime.h for VMS as well.

    Misc
    * Changed how modules are bundled to avoid replacing XS version of
      Scalar::Util with a pure Perl version [github #4]

  6.57_07  Fri, 25 Mar 2011 14:31:31 +1100
    Enhancements
    * Generates META.json and MYMETA.json in addition to
      META.yml and MYMETA.yml (David Golden)
    * MYMETA has the runtime requirements made priority over META_*
      keys to allow generation of a correct META.* into the dist while
      still generating an accurate MYMETA.* locally (Matt S Trout)
    * Distributions should not depend on cc_runtime.h from core as it is
      only needed for B::CC
    * Now uses CPAN::Meta to generate META files.

    Bug Fixes
    * MYMETA.yml generation from META.yml actually works (Matt S Trout)
    * All required META fields are generated, even if they must be filled
      with "unknown" in place of real data (David Golden)

    Test Fixes
    * miniperl.t is no longer run outside of the perl core.  Its only relevant
      to bleadperl and requires no backwards compatibility [rt.cpan.org 61868]

    Cygwin
    * Rebase behaviour was improved (Reini Urban)
    * Build man pages (Reini Urban)

    Win32
    * Spot valid lib files on Win32 when .a and .lib are mixed.
      (Christian Walde) [github #3]
    * Extensive testing of ExtUtils::Liblist::Kid for Win32
      (Christian Walde)
    * Implemented proper emulation of DOS escaping rules in ExtUtils::MM_Win32
      (Christian Walde)

  6.57_06  Wed Oct 06 13:49:00 EEST 2010
    Win32
    * Work around dmake's limitations on how long a "line" can be.
      [rt.cpan.org 61286]
    * ActivePerl 1007 can now see gcc. [rt.cpan.org 55752] (Christian Walde)

    Bug Fixes
    * Fix for AUTHOR and undocumented usage of MM->new() (Alexandr Ciornii)

2 files changed, 19 insertions, 8 deletions

diff --git a/cpan/CPAN-Meta/lib/CPAN/Meta.pm b/cpan/CPAN-Meta/lib/CPAN/Meta.pm
index 138aee3e03..5d53514992 100644
--- a/cpan/CPAN-Meta/lib/CPAN/Meta.pm
+++ b/cpan/CPAN-Meta/lib/CPAN/Meta.pm
@@ -3,7 +3,7 @@ use strict;
 use warnings;
 package CPAN::Meta;
 BEGIN {
-  $CPAN::Meta::VERSION = '2.110930';
+  $CPAN::Meta::VERSION = eval '2.110930_001';
 }
 # ABSTRACT: the distribution metadata for a CPAN dist
 
@@ -16,11 +16,7 @@ use CPAN::Meta::Validator;
 use Parse::CPAN::Meta 1.4400 ();
 
 sub _dclone {
-  my $ref = shift;
-  my $backend = Parse::CPAN::Meta->json_backend();
-  return $backend->new->decode(
-    $backend->new->convert_blessed->encode($ref)
-  );
+    CPAN::Meta::Converter::_dclone(@_);
 }
 
 
diff --git a/cpan/CPAN-Meta/lib/CPAN/Meta/Converter.pm b/cpan/CPAN-Meta/lib/CPAN/Meta/Converter.pm
index 311a93dfff..2ea3456426 100644
--- a/cpan/CPAN-Meta/lib/CPAN/Meta/Converter.pm
+++ b/cpan/CPAN-Meta/lib/CPAN/Meta/Converter.pm
@@ -3,7 +3,7 @@ use strict;
 use warnings;
 package CPAN::Meta::Converter;
 BEGIN {
-  $CPAN::Meta::Converter::VERSION = '2.110930';
+  $CPAN::Meta::Converter::VERSION = eval '2.110930_001';
 }
 # ABSTRACT: Convert CPAN distribution metadata structures
 
@@ -11,15 +11,30 @@ BEGIN {
 use CPAN::Meta::Validator;
 use version 0.82 ();
 use Parse::CPAN::Meta 1.4400 ();
+use Carp qw(croak);
 
 sub _dclone {
   my $ref = shift;
+
+  # Work around JSON::PP's lack of a convert_blessed_universally
+  local *UNIVERSAL::TO_JSON = sub {
+      my $obj = shift;
+
+      # Special case: stringify version objects
+      # Everything else: serialize
+      return $obj->isa("version") ? "$obj"    :
+             $obj->isa("HASH")    ? { %$obj } :
+             $obj->isa("ARRAY")   ? { @$obj } :
+                                    croak "Don't know how to serialize $obj";
+  };
+
   my $backend = Parse::CPAN::Meta->json_backend();
   return $backend->new->decode(
-    $backend->new->convert_blessed->encode($ref)
+    $backend->new->convert_blessed->allow_blessed->encode($ref)
   );
 }
 
+
 my %known_specs = (
     '2'   => 'http://search.cpan.org/perldoc?CPAN::Meta::Spec',
     '1.4' => 'http://module-build.sourceforge.net/META-spec-v1.4.html',