After you install the developer tools, you can check your cpan configuration for make. 
cpan> o conf make

[download]
On my system, it returns 
make [/usr/bin/make]

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Make sure that it's the correct path to make.

As regards configure_requires, it's a META.yml field used by the most recent perls. Moose uses it but in a META.json format. Using Dist::CheckConflicts, it checks whether the prerequisites are installed and are uptodate. Here's the script that you need to run before you try to install Moose: 

#!/usr/bin/perl 

use strict;
use warnings;

use Dist::CheckConflicts
    -dist      => 'Moose',
    -conflicts => {
        'Catalyst' => '5.80028',
        'Devel::REPL' => '1.003008',
        'Fey' => '0.36',
        'Fey::ORM' => '0.34',
        'File::ChangeNotify' => '0.15',
        'KiokuDB' => '0.49',
        'Markdent' => '0.16',
        'MooseX::Aliases' => '0.07',
        'MooseX::AlwaysCoerce' => '0.05',
        'MooseX::Attribute::Deflator' => '1.130000',
        'MooseX::Attribute::Dependent' => '1.0.0',
        'MooseX::Attribute::Prototype' => '0.10',
        'MooseX::AttributeHelpers' => '0.22',
        'MooseX::AttributeInflate' => '0.02',
        'MooseX::ClassAttribute' => '0.17',
        'MooseX::FollowPBP' => '0.02',
        'MooseX::HasDefaults' => '0.02',
        'MooseX::InstanceTracking' => '0.04',
        'MooseX::LazyRequire' => '0.05',
        'MooseX::MethodAttributes' => '0.22',
        'MooseX::NonMoose' => '0.15',
        'MooseX::POE' => '0.205',
        'MooseX::Params::Validate' => '0.05',
        'MooseX::Role::Cmd' => '0.06',
        'MooseX::Role::WithOverloading' => '0.07',
        'MooseX::SemiAffordanceAccessor' => '0.05',
        'MooseX::Singleton' => '0.24',
        'MooseX::StrictConstructor' => '0.08',
        'MooseX::Types' => '0.19',
        'MooseX::UndefTolerant' => '0.04',
        'Pod::Elemental' => '0.093280',
        'namespace::autoclean' => '0.08',
    },
    -also => [ qw(
        Data::OptList
        Devel::GlobalDestruction
        Eval::Closure
        List::MoreUtils
        MRO::Compat
        Package::DeprecationManager
        Package::Stash
        Package::Stash::XS
        Params::Util
        Scalar::Util
        Sub::Exporter
        Sub::Name
        Task::Weaken
        Try::Tiny
    ) ];

__PACKAGE__->check_conflicts;

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In reply to Re^2: Moose failed to install on mac 10.6.7 by Khen1950fx
in thread Moose failed to install on mac 10.6.7 by 7stud

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