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Module::Build::Compat(3pm)            Perl Programmers Reference Guide            Module::Build::Compat(3pm)



NAME
       Module::Build::Compat - Compatibility with ExtUtils::MakeMaker

SYNOPSIS
         # In a Build.PL :
         use Module::Build;
         my $build = Module::Build->new
           ( module_name => 'Foo::Bar',
             license     => 'perl',
             create_makefile_pl => 'traditional' );
         ...

DESCRIPTION
       Because "ExtUtils::MakeMaker" has been the standard way to distribute modules for a long time, many
       tools (CPAN.pm, or your system administrator) may expect to find a working Makefile.PL in every
       distribution they download from CPAN.  If you want to throw them a bone, you can use
       "Module::Build::Compat" to automatically generate a Makefile.PL for you, in one of several different
       styles.

       "Module::Build::Compat" also provides some code that helps out the Makefile.PL at runtime.

METHODS
       create_makefile_pl($style, $build)
           Creates a Makefile.PL in the current directory in one of several styles, based on the supplied
           "Module::Build" object $build.  This is typically controlled by passing the desired style as the
           "create_makefile_pl" parameter to "Module::Build"'s "new()" method; the Makefile.PL will then be
           automatically created during the "distdir" action.

           The currently supported styles are:

           traditional
               A Makefile.PL will be created in the "traditional" style, i.e. it will use
               "ExtUtils::MakeMaker" and won't rely on "Module::Build" at all.  In order to create the
               Makefile.PL, we'll include the "requires" and "build_requires" dependencies as the
               "PREREQ_PM" parameter.

               You don't want to use this style if during the "perl Build.PL" stage you ask the user
               questions, or do some auto-sensing about the user's environment, or if you subclass
               "Module::Build" to do some customization, because the vanilla Makefile.PL won't do any of
               that.

           small
               A small Makefile.PL will be created that passes all functionality through to the Build.PL
               script in the same directory.  The user must already have "Module::Build" installed in order
               to use this, or else they'll get a module-not-found error.

           passthrough (DEPRECATED)
               This is just like the "small" option above, but if "Module::Build" is not already installed
               on the user's system, the script will offer to use "CPAN.pm" to download it and install it
               before continuing with the build.

               This option has been deprecated and may be removed in a future version of Module::Build.
               Modern CPAN.pm and CPANPLUS will recognize the "configure_requires" metadata property and
               install Module::Build before running Build.PL if Module::Build is listed and Module::Build
               now adds itself to configure_requires by default.

               Perl 5.10.1 includes "configure_requires" support.  In the future, when "configure_requires"
               support is deemed sufficiently widespread, the "passthrough" style will be removed.

       run_build_pl(args => \@ARGV)
           This method runs the Build.PL script, passing it any arguments the user may have supplied to the
           "perl Makefile.PL" command.  Because "ExtUtils::MakeMaker" and "Module::Build" accept different
           arguments, this method also performs some translation between the two.

           "run_build_pl()" accepts the following named parameters:

           args
               The "args" parameter specifies the parameters that would usually appear on the command line
               of the "perl Makefile.PL" command - typically you'll just pass a reference to @ARGV.

           script
               This is the filename of the script to run - it defaults to "Build.PL".

       write_makefile()
           This method writes a 'dummy' Makefile that will pass all commands through to the corresponding
           "Module::Build" actions.

           "write_makefile()" accepts the following named parameters:

           makefile
               The name of the file to write - defaults to the string "Makefile".

SCENARIOS
       So, some common scenarios are:

       1.  Just include a Build.PL script (without a Makefile.PL script), and give installation directions
           in a README or INSTALL document explaining how to install the module.  In particular, explain
           that the user must install "Module::Build" before installing your module.

           Note that if you do this, you may make things easier for yourself, but harder for people with
           older versions of CPAN or CPANPLUS on their system, because those tools generally only understand
           the Makefile.PL/"ExtUtils::MakeMaker" way of doing things.

       2.  Include a Build.PL script and a "traditional" Makefile.PL, created either manually or with
           "create_makefile_pl()".  Users won't ever have to install "Module::Build" if they use the
           Makefile.PL, but they won't get to take advantage of "Module::Build"'s extra features either.

           For good measure, of course, test both the Makefile.PL and the Build.PL before shipping.

       3.  Include a Build.PL script and a "pass-through" Makefile.PL built using "Module::Build::Compat".
           This will mean that people can continue to use the "old" installation commands, and they may
           never notice that it's actually doing something else behind the scenes.  It will also mean that
           your installation process is compatible with older versions of tools like CPAN and CPANPLUS.

AUTHOR
       Ken Williams <kwilliams@cpan.org>

COPYRIGHT
       Copyright (c) 2001-2006 Ken Williams.  All rights reserved.

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

SEE ALSO
       Module::Build(3), ExtUtils::MakeMaker(3)



perl v5.12.5                                     2012-11-03                       Module::Build::Compat(3pm)